Wiring harnesses for the Moto Guzzi V7 Sport
To order, e-mail: greg@thisoldtractor.com
Installation is eased with my instructions for the major electrical components.
Main harness for the V7 Sport
Part Number | Description | Photo | Price |
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MG# 14747100 |
Main harness for the V7 Sport I duplicated an original main harness. In construction, I use the same gauge of wire, the same colors and tracers (stripes), the same length and sheathing, the same terminals, etc. All terminals are of the double crimp, strain relief variety.
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USD $115.00 |
Sub-harnesses for the V7 Sport
Part Number | Description | Photo | Price |
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MG# 12750300 |
Right handlebar switch Ready to solder to your switch. Works with switch pictured below (not included). IMPORTANT NOTE: It is very easy to destroy original or aftermarket switches when using a conventional soldering iron. Even if you know exactly what you are doing and are very experienced with soldering procedures, the switches can very easily be rendered useless. Rather than using solder, I strongly recommend the following:
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USD $9.50 |
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MG# 18750650 |
Extension cable for right front turn signal Connects the bulb holder inside the turn signal to the turn signal harness. Fits turn signals that accept a 2.62 mm wide female spade terminal. Butt crimp and heat shrink included for other applications. Wire is 500 mm in length with 450 mm sheathing in two sizes: smaller for a direct connection to the bulb holder; larger for use with the butt crimp and heat shrink. |
USD $7.00 |
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MG# 18750651 |
Extension cable for left front turn signal Connects the bulb holder inside the turn signal to the turn signal harness. Fits turn signals that accept a 2.62 mm wide female spade terminal. Butt crimp and heat shrink included for other applications. Wire is 500 mm in length with 450 mm sheathing in two sizes: smaller for a direct connection to the bulb holder; larger for use with the butt crimp and heat shrink. |
USD $7.00 |
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MG# 18751650 |
Extension cable for right rear turn signal Connects the bulb holder inside the turn signal to the turn signal harness. Fits turn signals that accept a 2.62 mm wide female spade terminal. Butt crimp and heat shrink included for other applications. Wire is 500 mm in length with 450 mm sheathing in two sizes: smaller for a direct connection to the bulb holder; larger for use with the butt crimp and heat shrink. |
USD $7.00 |
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MG# 18751651 |
Extension cable for left rear turn signal Connects the bulb holder inside the turn signal to the turn signal harness. Fits turn signals that accept a 2.62 mm wide female spade terminal. Butt crimp and heat shrink included for other applications. Wire is 500 mm in length with 450 mm sheathing in two sizes: smaller for a direct connection to the bulb holder; larger for use with the butt crimp and heat shrink. |
USD $7.00 |
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MG# 14715424 |
Distributor to coil - left side Connects the ignition points inside the distributor directly to the coil serving the left cylinder. A ring terminal is used for a more secure fitment inside the distributor. The green wire exits the distributor toward the rear of the motorcycle. |
USD $2.75 |
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MG# 14715425 |
Distributor to coil - right side Connects the ignition points inside the distributor directly to the coil serving the right cylinder. A ring terminal is used for a more secure fitment inside the distributor. The red wire exits the distributor toward the front of the motorcycle. |
USD $2.75 |
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MG# 14735300 |
Ignition switch Replacement wiring for the original ignition switch. Connects the ignition switch to the terminal block. Ample wire length is provided (300 mm). |
USD $5.75 |
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MG# 14735300 (NEW SWITCH) |
Ignition switch Replacement wiring for a replacement ignition switch that accepts female spade terminals. |
USD $8.75 |
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TAIL-LIGHT |
Tail light harness applicable to several tail lights: MG# 10740900 MG# 12740900 MG# 12740920 MG# 14474900 A simple harness to replace the aging wires at your tail light. Includes longer springs to replace the originals. Once the wires are fit to the tail light, crimp the included female bullet terminals in place. |
USD $7.00 |
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MG# 14741724 |
Tail light harness applicable to several tail lights: MG# 14740920 MG# 17740900 Connects the main harness to the tail light. |
USD $5.50 |
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MG# 14746020 |
Left handlebar switch Ready to solder to your switch. Works with switch pictured below (not included). IMPORTANT NOTE: It is very easy to destroy original or aftermarket switches when using a conventional soldering iron. Even if you know exactly what you are doing and are very experienced with soldering procedures, the switches can very easily be rendered useless. Rather than using solder, I strongly recommend the following:
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USD $19.75 |
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MG# 14747400 |
Alternator harness Uses all of the original correct original colors and heat resistant materials. Connections at alternator and rectifier are correct and accurate for the V7 Sport: lacking the flat 3-connection plug that was fit to later models. At the alternator: Original additional/special sheathing (MG# 14710200) exiting the alternator cover is not included because it does not accept the larger diameter heat resistant wire; regular sheathing is used instead and it fits nicely through the alternator cover. |
USD $37.44 |
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MG# 14747400-ALT |
Alternator harness This SELECT THIS VERSION ONLY IF YOU ARE PLANNING TO RE-USE OR REPLACE YOUR ORIGINAL RUBBER SHEATHING. Uses all of the original correct original colors. Connections at alternator and rectifier are correct and accurate for the V7 Sport: lacking the flat 3-connection plug that was fit to later models. Crimp connections after routing the harness through your original rubber sheathing:
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USD $30.00 |
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MG# 14747404-USA |
Headlight plug - USA models Connects the headlight bulb to the terminals inside the rear of the headlight shell. Does not include wiring for the city light. |
USD $9.50 |
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MG# 14747404-EURO |
Headlight plug - Non-USA models Connects the headlight bulb to the terminals inside the rear of the headlight shell. Includes wiring for the city light. |
USD $11.50 |
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MG# 14747500 |
Power from battery Connect the battery positive terminal to the fuse panel. |
USD $2.00 |
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MG# 14747501 |
Turn signals Connects the right handlebar switch and two 3 connection female spade connectors to the thermal flasher and rear turn signals. |
USD $12.50 |
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MG# 14747700 |
Coil to coil interconnect Connects the positive terminal on one coil to the positive terminal on the other coil. |
USD $2.00 |
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MG# 14747700 (DYNA) |
Coil to coil interconnect for DYNA coils Connects the positive terminal on one Dyna coil to the positive terminal on the other Dyna coil. |
USD $2.00 |
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MG# 14747700 (DYNA MINI) |
Coil to coil interconnect for DYNA Miniature coils Connects the positive terminal on one Dyna Miniature coil to the positive terminal on the other Dyna coil. Uses piggyback terminals to ease connection of other terminals. |
USD $2.50 |
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MG# 14747800 |
Indicator light interconnect Interconnects three indicator lights: oil pressure, alternator charging, and neutral indicator. |
USD $4.00 |
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MG# 14748000 |
Horn interconnect Connects one horn to the other horn. |
USD $4.00 |
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MG# 14748300 |
Starter button Connects the starter button to the terminal block. |
USD $8.25 |
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MG# 14748400 |
Battery cable - negative Connects the negative terminal on the battery to the ground point on the frame. Cable is 6 AWG and is 400 mm (~15 3⁄4 inch) in total length. The battery lug accepts a 6 mm fastener; the frame lug accepts an 8 mm fastener. If you require something different, please let me know. |
USD $12.25 |
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MG# 14748605 |
Neutral indicator to main harness Connects the neutral indicator switch to the main harness. Includes rubber cover for the terminal located at the neutral switch (MG# 12702900). |
USD $4.75 |
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MG# 14748900 |
Front brake light switch Connects the front brake light switch to the main harness and fuse block. Originally, Moto Guzzi used lamp cord. Instead, I prefer individual wires and sheathing for a higher quality final product. |
USD $14.25 |
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MG# 14754400 |
Courtesy light positive Connects the courtesy light (under the seat) to the fuse block. Uses the correct original piggyback terminal. |
USD $2.00 |
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MG# 14754600 |
Courtesy light ground Connects the courtesy light (under the seat) to ground. |
USD $2.00 |
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MG# 14754700 |
Turn signal flasher positive Connects the positive ( |
USD $2.00 |
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MG# 17748500-V7SPORT |
Rectifier ground Used to connect the body of the rectifier to the motorcycle frame (ground or earth). On the V7 Sport, this wire connects one of the mounting bolts that secure the rectifier in place to the lower terminal block mounting bolt. |
USD $2.00 |
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MG# 14748105 |
Starter relay ground FITS THE ORIGINAL STARTER RELAY ONLY Connects terminal 85 on the starter relay to ground. Includes rubber covers for the terminals located at the starter relay and ground (MG# 12702900). |
USD $7.00 |
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MG# 14748205 |
Starter relay to starter FITS THE ORIGINAL STARTER ONLY Connects the starter relay to the starter motor. Cable is 6 AWG and is 150 mm (~6 inch) in total length. Both lugs accept 6 mm fasteners. If you require something different, please let me know. Includes rubber covers for the terminal located at the starter relay and starter (MG# 12703000). |
USD $14.00 |
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MG# 14748400-POSITIVE |
Battery cable - positive FITS THE ORIGINAL STARTER ONLY Connects the positive terminal on the battery to the original starter relay. Cable is 6 AWG and is 400 mm (~15 3⁄4 inch) in total length. Both lugs accept 6 mm fasteners. If you require something different, please let me know. Includes rubber cover for the terminal located at the starter relay (MG# 12703000). |
USD $14.75 |
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MG# 14748605-RELAY |
Starter relay to main harness FITS THE ORIGINAL STARTER RELAY ONLY Connects terminal 86 on the starter relay to the main harness. Includes rubber cover for the terminal located at the starter relay (MG# 12702900). |
USD $4.75 |
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MG# 14748105-ALT |
Starter relay ground DOES NOT FIT THE ORIGINAL STARTER. INSTEAD FITS THE STANDARD STARTER RELAY AS USED ON ALL OTHER MODELS OF THIS ERA. Connects terminal 85 on the starter relay to ground. |
USD $2.00 |
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MG# 17747950 |
Battery cable - positive DOES NOT FIT THE ORIGINAL STARTER. INSTEAD FITS THE STANDARD STARTER USED ON ALL OTHER MODELS OF THIS ERA. Connects the positive terminal on the battery to the starter solenoid. Cable is 6 AWG and is 350 mm (~13 3⁄4 inch) in total length. The battery lug accepts a 6 mm fastener; the starter solenoid lug accepts an 8 mm fastener. If you require something different, please let me know. Replaces MG# 14748400 and MG# 14748450. Includes rubber cover for the terminal located at the starter solenoid (MG# 12703000). |
USD $15.75 |
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MG# 14748605-RELAY-ALT |
Starter relay to main harness DOES NOT FIT THE ORIGINAL STARTER. INSTEAD FITS THE STANDARD STARTER RELAY AS USED ON ALL OTHER MODELS OF THIS ERA. Connects terminal 86 on the starter relay to the main harness. |
USD $2.25 |
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MG# 17748200 |
Starter relay to starter solenoid DOES NOT FIT THE ORIGINAL STARTER. INSTEAD FITS THE STANDARD STARTER USED ON ALL OTHER MODELS OF THIS ERA. Connects terminal 87 on the starter relay to the starter solenoid. |
USD $2.00 |
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FUSE-TO-RELAY |
Fuse box to starter relay DOES NOT FIT THE ORIGINAL STARTER. INSTEAD FITS THE STANDARD STARTER USED ON ALL OTHER MODELS OF THIS ERA. Connects fuse box to terminal 30 on the starter relay. |
USD $4.25 |
Custom Sub-Harnesses
Part Number | Description | Photo | Price |
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SWITCH-TONTI |
Multifunction handlebar switch pre-wired for Moto Guzzi V7 Sport models After 10 years of building Moto Guzzi harnesses and supporting my customers, I have learned that people experience the most frustration and challenges when attempting to wire the left handlebar switch (by far). To help alleviate these issues, I am now offering this brand new switch with period appearance. The switch features a metal body and fits 22 mm (7⁄8 inch) handlebars. It is pre-wired so that you can mount it on your handlebar and plug in the wires quickly and easily. I chose this switch because of its functionality, size, and appearance. While it does not boast all of the features and functions of a modern switch, it is a good basic switch that is appropriate to the V7 Sport models. I use a switch like this on my personal Ambassador and I find it easy to use and my thumb operates all of the controls with ease. As with all handlebar switches, I strongly recommend the use of relays for the headlight circuit. I have an excellent relay solution available for purchase.
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USD $85.00 |
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RELAY-HARNESS-TONTI |
Relay solution for the horns, coils, headlight high beam, and headlight low beam No more excuses! Relays greatly improve the performance of the horns, coils, and headlight. Your horns will be louder, your coils will get all the amperage they require, and your headlights will burn brighter when you use relays. Relays also dramatically extend the life of your handlebar switches. This relay kit is a well thought-out and solid solution that is in line with what I believe Lino Tonti might have designed. A few points I'll mention:
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USD $113.00 |
Components
Part Number | Description | Photo | Price |
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MG# 12702900 |
Rubber boot/cover for small wire terminals. Intended to cover smaller wires with ring terminals. Sold each. |
USD $2.50 |
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MG# 12703000 |
Rubber boot/cover for battery cables. Intended to cover the terminal located at the starter solenoid. Not suitable for fitment at battery terminals. Sold each. |
USD $2.50 |
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MG# 12735100 |
Rubber boot/cover for starter button and disc brake light switches. Intended to cover the starter button used on the V7 Sport and 750 S. Also applicable to the front and rear brake light switches on disc brake models. Sold each.
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USD $2.50 |
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MG# 90706765 |
O-ring to seal the large, 100 mm speedometer to the dash. This O-ring seals the speedometer to the dash. |
USD $2.00 |
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MG# 90706746 |
Set of two O-rings to seal the smaller, 80 mm speedometer and tachometer to the dash. These O-rings seal each gauge to the dash. |
USD $4.00 |
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MG# 93400964 |
4 connection female spade connector A great way to connect four wires without the need for male spade terminals (Moto Guzzi typically did not use male spade terminals on wiring harnesses). Accepts 6.3 mm (1⁄4 inch) terminals. Sold each. Best to use a needle-nosed pair of pliers to insert and remove terminals. |
USD $8.00 |
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MG# 93400863 MG# 93400963 |
3 connection female spade connector A great way to split power to two devices such as driving lights, front and rear turn signals, etc. ( Best to use a needle-nosed pair of pliers to insert and remove terminals.
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USD $6.00 |
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MG# 93400962 |
2 connection female spade connector A great way to connect two wires without the need for male spade terminals (Moto Guzzi typically did not use male spade terminals on wiring harnesses). These are used on the Tonti framed models ( |
USD $3.00 |
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BULLET-CONNECTOR |
2 connection bullet connector A great way to connect two male bullet terminals (double bullet connector). Accepts 4 mm (0.157 inch) terminals. Sold each. |
USD $0.50 |
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BULB-HOLDER-SINGLE |
Single terminal bulb holder A very nice single terminal bulb holder with excellent fitment within the
When ordering: Please specify wire color and terminal. |
USD $7.50 |
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BULB-HOLDER-DUAL |
Dual terminal bulb holder A great replacement dual terminal bulb holder and very close to the original in design. Accepts two 6.35 mm female spade terminals, just like the original. Excellent fitment within the
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USD $5.00 |
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MG# 17760650 MG# 14768650 MG# 10754905 |
Dual terminal bulb holder A great replacement dual terminal bulb holder and very close to the original in design. Accepts two 6.35 mm female spade terminals, just like the original. Excellent fitment within the
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USD $5.00 |
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MG# 93450322 MG# 93450122 |
Light bulb for gauge and indicator lights 3.36 watt lamp, bayonet base, 500 hour average life, approximately 10 mm (0.41 inch) in diameter. Sold each. Note: The MG# 93450322 bulbs are longer in overall length, but brighter than MG# 10744910. In general, I recommend MG# 93450322 because they are brighter and easier to see. If you know that your dash requires a shorter bulb, please order MG# 10744910.
This bulb may also be used as a |
USD $0.75 |
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MG# 10744910 |
Light bulb for gauge and indicator lights 1.728 watt lamp, bayonet base, 1000 hour average life, approximately 10 mm (0.41 inch) in diameter. Sold each. Note: The MG# 93450322 bulbs are longer in overall length, but brighter than MG# 10744910. In general, I recommend MG# 93450322 because they are brighter and easier to see. If you know that your dash requires a shorter bulb, please order MG# 10744910.
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USD $0.75 |
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MG# 14744910 |
Light bulb for indicator lights 2 watt lamp, bayonet base, 1000 hour average life, approximately 7 mm (0.28 inch) in diameter. Sold each.
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USD $1.50 |
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MG# 93450224 |
Light bulb for tail light Long life bulb to help prevent failure due to vibration (1157LL), dual element, 26.88 / 8.26 watt lamp, bayonet base, 2400 / 10000 hour average life. Sold each.
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USD $1.50 |
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MG# 93450129 |
Light bulb for turn signals and parking lights Long life bulb to help prevent failure due to vibration (1156LL), single element, 26.88 watt lamp, bayonet base, 2400 hour average life. Sold each.
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USD $1.50 |
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MG# 17762150MG# 93450120 |
Light bulb for gauge and indicator lights 3.78 watt lamp, wedge base, 2500 hour average life, approximately 10 mm (0.41 inch) in diameter. Sold each.
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USD $0.75 |
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MG# 93450140 |
Light bulb for indicator lights 1.40 watt lamp, wedge base, 500 hour average life, approximately 5 mm (0.23 inch) in diameter. Sold each.
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USD $0.75 |
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MG# 12734900 |
Starter button bracket Bracket to fit the original starter button (22 mm diameter mounting hole). Stainless steel. Very nice. Starter button sold separately. Sold each. |
USD $15.50 |
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MG# 26735001 |
Starter button Momentary push button switch to actuate the starter. Fits the original bracket perfectly (22 mm diameter mounting hole) and comes complete with set screw terminals just like the original. Sturdy metal housing and nice quality black plastic securing nut. Sold each.
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USD $20.00 |
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MG# 26735001-BLACK |
Starter button Momentary push button switch to actuate the starter. Fits the original bracket perfectly (22 mm diameter mounting hole) and comes complete with set screw terminals just like the original. Nice quality black plastic housing and securing nut. Sold each.
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USD $14.00 |
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MG# 14746500 |
Front distribution panel High quality replacement front distribution panel as originally fit to the Moto Guzzi V7 Sport and 750 S. Provides five connections (ten terminals total), just like the original. Bolts into the original location on the frame under the fuel tank using the original 5 mm fasteners. Sold each.
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USD $25.00 |
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MG# 17743000 |
Original fuse block New production, very good quality fuse box. Accepts six fuses (MG# 17742550 or MG# 12742500). Comes with clear cover and two jumpers. Additional jumpers available. Sold each.
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USD $42.00 |
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MG# 17743000-JUMPER |
Jumper for original fuse block Jumper connection used to join multiple fuse circuits. Fits the original fuse box. Sold each.
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USD $1.50 |
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MG# 12742500 |
25 amp fuse Original style fuse to fit the original fuse block. Sold each.
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USD $0.50 |
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MG# 17742550 |
16 amp fuse Original style fuse to fit the original fuse block. Sold each.
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USD $0.50 |
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MG# 28743060 |
Fuse holder Single fuse holder that may be connected to other single fuse holders to form a row. Sold each. Fuses sold separately.
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USD $2.50 |
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MG# 28742560 |
15 amp ATO / ATC fuse As used on many modern Guzzis accepting blade style fuses. Sold each.
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USD $0.25 |
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POST-TO-SPADE-ADAPTER |
5 mm post to 6.3 mm male spade adapter ~5 mm diameter hole permits fitment to the neutral switch and dash grounding points (as original). One required per neutral switch. Dash usage varies by model. Sold each.
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USD $0.50 |
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MG# 13741640-LED |
Bracket for mounting LED turn signal flashers Designed specifically for LED flashers that are rubber mounted. Mounting hole is 7 mm in diameter. Sold each. |
USD $3.00 |
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MG# 13741640 |
Bracket for mounting turn signal flashers Fits standard sized round thermal and electronic flashers. Mounting hole is 6 mm in diameter. Sold each. |
USD $3.00 |
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MG# 12745760 |
Push-pull switch Good quality switch with screw-type terminals. 25 amp capacity. 8 mm × 1 mm threads. Knob unscrews for fitment. Sold each. |
USD $5.00 |
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MG# 12734900ALT |
Bracket for push-pull switch This bracket is identical to the starter button bracket, except the hole is ~8 mm in diameter. The intent is to mount this bracket on the left clutch perch, mirroring the starter button bracket. Then, a push-pull switch may be fit to the bracket and used to conveniently actuate spot lights or other electrical components. Stainless steel. Very nice. Push-pull switch sold separately. Sold each. |
USD $15.50 |
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MG# 13745740 MG# 17745760 MG# 18745701 |
Toggle switch Excellent quality SEALED switch with six quick connect terminals (as original). 15 amp capacity, on-on double pole double throw, comes complete with mounting hardware (as shown). Sold each.
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USD $18.50 |
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TOGGLE-BOOT |
Half height toggle switch boot Half-height boot for the toggle switch. Uses standard 15⁄32-32 inch threads. Be sure to rotate the toggle with the boot when fitting the boot to the switch. Sold each.
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USD $4.50 |
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TOGGLE-BOOT-FULL |
Full height toggle switch boot Full-height boot for the toggle switch. Uses standard 15⁄32-32 inch threads. Be sure to rotate the toggle with the boot when fitting the boot to the switch. Sold each.
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USD $4.00 |
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MG# 12732500 |
5 pin mini relay (SPDT) with mounting bracket. 40 amp rating. Sealed construction. Resistor is used across the coil terminals for long life and reliable service. 40 amp maximum continuous current rating on the normally open circuit. 30 amp maximum continuous current rating on the normally closed circuit. Great replacement for the starter relay or for use with custom functions. Mounting bracket has a 5.5 mm diameter hole. Sold each.
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USD $5.00 |
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MG# 28732560 |
5 pin mini relay (SPDT) without mounting bracket. 40 amp rating. Great replacement for the starter relay or for use with custom functions. Sold each.
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USD $5.00 |
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MG# 30732510 |
5 pin mini relay (SPST) without mounting bracket. Sealed construction. 40 amp maximum continuous current rating. So far, the only Guzzi I know of that requires this relay is the 1000 S series 2 with the later Digiplex ignition module. As far as I know, all other applications should use MG# 28732560. Sold each.
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USD $7.50 |
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MG# 30732560 |
5 pin micro relay (SPDT) without mounting bracket. 30 amp rating. Sealed construction. Resistor is used across the coil terminals for long life and reliable service. 30 amp maximum continuous current rating on the normally open circuit. 20 amp maximum continuous current rating on the normally closed circuit. Used on many later Guzzis. Fits my custom relay solution. Great for use with custom functions. Sold each. |
USD $5.00 |