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Electrical System

BMW Motorcycle Electrical Systems

Your motorcycle most likely has a battery on board. That's what delivers the juice needed to start the bike. The battery also stores a specific amount of electric energy. It's charged by an alternator -- or generator -- that's drive by the engine.

Most motorcycles also feature a rectifier unit that converts the AC electricity from the generator into the DC electricity that your battery needs. In addition, parts such as your lights and electronics require DC power in order to work properly. Of course, there are also the many switches, wires, and relays that enable the system to fully operate.

How to Spot a Faulty Electrical System

Even the best electrical systems can go bad over time. Signs of this include:

  • Lights brighten and dim while you're riding
  • Your engine begins to sputter when you're riding
  • Your bike won't start
  • The battery warning light comes on
  • Buy Genuine BMW Motorrad Electrical System Parts Online

    Be sure to thoroughly test your entire electrical system if you're experiencing any of these symptoms. Your battery could be at fault, or maybe the alternator is going bad. Maybe the rectifier is failing. No matter what's wrong, there's an easy solution right at hand. Enter your model and year to the left, and all of the parts you need for your project will appear. Since our online parts center only sells the real-deal electrical system components that your manufacturer made for your model, you can trust their quality, fit, and performance. Buy now and we'll ship your order directly to your front door!

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    Front Wheel Fender
    MSRP $1,802.05
    Part Number: 46617716710
    Options: Front
    Other Names: Fender
    Description: For vehicles with alpinweiss 3 [U751 (+)] or motorsportlackierung [yn58 (+)] color mixture code 300 alpin white 3.
    Fits:
    • BMW-Motorrad:
      • HP2 Sport
    Bush
    Part Number: 46517661506
    Fits:
    • BMW-Motorrad:
      • R 1200 CL
    Not For Sale
    Compression Spring
    MSRP $13.08
    Part Number: 31421451701
    Description: Fg* K100rs (sport) sport suspension.
    Fits:
    • BMW-Motorrad:
      • K 100,
      • K 100 LT,
      • K 100 RS,
      • K 100 RT,
      • K 75,
      • K 75 C,
      • K 75 RT,
      • K 75 S
    Not For Sale
    Men's Vintage Distressed T-Shirt
    MSRP $35.00
    Part Number: UW8000-22020001
    Description: Click Here For Sizing Chart Retro look with a vintage Roundel and BMW Motorrad text featured in a classic serif font. • BMW...
    Unisex GS Keyring
    MSRP $9.00
    Part Number: 76618546737
    Description: Key chain with flat print on the front. Product highlights • BMW Motorrad inscription with stripes • BMW Motorrad engraving on the...
    Fits: This product fits most motorcycles
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    MSRP $41.91
    Part Number: 1408396882
    Fits: This product fits most motorcycles
    Women's 3/4 Summer Pants
    Part Number: 76248553527
    Options: XS
    Description: Recreate the refreshing cool breeze of the oncoming wind — without the actual wind — with this highly breathable functional underwear...
    Not For Sale
    Unisex GS Longsleeve
    Part Number: 76237109627
    Description: Click Here For Sizing Chart Stylish, functional long sleeve T-shirt with inscription on the sleeves and on the back. • Cool,...
    Not For Sale
    Womens Flat Twin Leather Jacket
    MSRP $399.00
    Part Number: 76899445965
    Description: Click Here For Sizing Chart The FlatTwin leather jacket for women and men is reminiscent of the typical motorcycle jackets of the...
    Unisex Adventure Hoodie
    MSRP $95.00
    Part Number: 76617912896
    Options: S
    Description: Click Here For Sizing Chart Comfortable hoodie pullover with a large imprint on the chest. • Large “Adventure starts outside”...
    Unisex Gotthard GTX Boots
    MSRP $369.00
    Part Number: 76227913917
    Options: 44
    Description: Click Here For Sizing Chart The Gotthard GORE-TEX boots made of strong leather are the perfect companion for touring riders....
    Fits: This product fits most motorcycles
    Unisex Rallye Longsleeve Shirt
    MSRP $75.00
    Part Number: 76237109708
    Options: M
    Description: Click Here For Sizing Chart Cool jersey with a large print on the chest. • In a cool retro look • Large “Spirit of GS” imprint...
    Men's XRide Outsert Jacket
    MSRP $199.00
    Part Number: 76111540248
    Options: Jacket - 25
    Description: • Outsert rain jacket will provide protection against rainfall • Windproof and waterproof • Front zipper covered with a waterproof cover...
    Unisex TourWindbreaker Storm Hood
    Part Number: 76239445937
    Options: L
    Description: The TourWindbreaker balaclava keeps wonderfully warm and is therefore especially well-suited for winter or during transitional seasons....
    Not For Sale
    Women's GS Fleece Sweater, Red
    Part Number: 76238504298
    Options: XS
    Description: Polar-fleece sweater with zipper • Windproof front section and front collar • High collar with short zipper • Large lockable kangaroo...
    Fits: This product fits most motorcycles
    Not For Sale
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    MSRP $47.64
    Part Number: 1477706097
    Fits: This product fits most motorcycles
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    MSRP $15.17
    Part Number: 1519798771
    Fits: This product fits most motorcycles
    Womens GS Function T-shirt
    MSRP $59.00
    Part Number: 76238504241
    Options: 2XL
    Description: Click Here For Sizing Chart Functional merino t-shirt with large print on the back. Product highlights • Loose fit • Pleasant to...
    Mens Mitte Jacket
    MSRP $399.00
    Description: Click Here For Sizing Chart The Mitte jacket combines a classic shirt look with functionality and safety. It looks great even in...
    Fits: This product fits most motorcycles
    Unisex ProRace Boots
    MSRP $379.00
    Part Number: 76229898488
    Options: Boots - 39
    Description: The waterproof, breathable ProRace boots for men have both an inspiring Race look and many practical details. Amongst other things, they...
    Men's PureXcursion Jacket
    MSRP $459.00
    Part Number: 76121539756
    Options: Jacket - 54
    Description: The PureXcursion men's jacket is just as rugged and durable as its adventure style promises. It has two waterproof pockets on the front...
    Womens Bavella Jacket
    MSRP $599.00
    Description: Click Here For Sizing Chart The Bavella jacket is equipped to handle a wide variety of temperatures. The insert with BMW Climate...
    Fits: This product fits most motorcycles
    Mens PureRider Pants
    MSRP $249.00
    Part Number: 76127922565
    Description: Click Here For Sizing Chart The PureRider pants don’t only look on the bike, but also look good in everyday life. They are...
    Men's Essential Jacket
    MSRP $349.00
    Part Number: UW00000501010020
    Description: This waterproof jacket, thanks to it removable insert, is perfect for those warm weather climate areas but still comfortable to be used...
    Unisex Ride Sneaker
    MSRP $199.00
    Part Number: 76228395307
    Options: Boots - 41
    Description: Sometimes even motorcycle riders want to wander through the urban landscape on foot – preferably in lightweight sneakers made of...
    Unisex BMW Motorrad Cap
    MSRP $35.00
    Part Number: 76617109792
    Description: Cap with large logo print on front. • 5.5-panel cap • Large BMW logo on the front • BMW Motorrad inscription on the back • Wrap-around...
    Fits: This product fits most motorcycles
    Mens GS Namib GTX Pants
    MSRP $699.00
    Part Number: 76117913097
    Options: 98
    Description: The GS Namib GORE-TEX trousers with NP3 joint and hip protectors make the hearts of Enduro fans beat faster. Adjustable trouser waistband...
    Womens Reschen GTX Pants
    MSRP $599.00
    Part Number: 76137913430
    Options: 40
    Description: The wearing comfort of the Reschen GORE-TEX pants pays off especially on long tours. The watertight and breathable Enduro pants convinces...
    Unisex Cool Down Vest
    MSRP $119.00
    Part Number: U-CoolDownVest-072227
    Description: Click Here For Sizing Chart The Cool Down vest stands out with its innovative cooling technology. When the vest is wet or damp,...
    Mens "MAKE LIFE A RIDE" T-shirt
    MSRP $35.00
    Part Number: 76618536439
    Options: 3XL, Green
    Description: Click Here For Sizing Chart Tight-fitting classic T-shirt with large print on the back. • Large Make Life a Ride print on the...
    Mens Brussels GTX Jacket
    MSRP $699.00
    Part Number: 76127913557
    Description: Click Here For Sizing Chart The water-repellent GORE-TEX Brussels jacket can be adjusted to suit a wide variety of outside...
    Men's FivePocket Jeans
    Part Number: 76128568482
    Options: Denim, Trousers - W40/L34
    Description: Combining the classic look of jeans with the performance of motorcycling trousers, the FivePocket jeans look as stylish off the bike as...
    Not For Sale
    Men's XRide Outsert Trousers
    MSRP $189.00
    Part Number: 76111540293
    Options: Trousers - 98
    Description: • Light weight, compact packaging • Heat resistant material in the inner area of the legs • Anti-slip material in the buttocks • Velcro...
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    Long NP Flex Pro Back Protector
    MSRP $65.00
    Part Number: 76417925251
    Options: 1
    Fits: This product fits most motorcycles
    Motorsport Polo Shirt, Men, White
    MSRP $49.00
    Part Number: 76618536577
    Description: Classic polo shirt with three-color graphic print. • Regular fit • Three-color Motorsport graphic print on the left shoulder • BMW...
    Fits: This product fits most motorcycles
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    MSRP $71.46
    Part Number: 1408358087
    Fits: This product fits most motorcycles
    Mens GS Adrar Jacket
    MSRP $559.00
    Part Number: 76117913444
    Options: 64
    Description: The GS Adrar jacket with its many ventilation options is perfectly tailored for use when the weather is hot. The lightweight jacket...
    Men's PureShifter Boots
    MSRP $349.00
    Part Number: W50HE01605010120
    Description: Click Here For Sizing Chart The robust PureShifter laced boots inspire with their classical look and enhancing details. The black...
    Womens GS Rallye GTX Jacket
    MSRP $999.00
    Description: • Enduro jacket in a modern look • Watertight GORE-TEX-Outsert (water column: 27,000 mm) for all weathers • Extremely abrasion-resistant...
    Fits: This product fits most motorcycles
    Unisex Seoul GTX Sneakers
    MSRP $249.00
    Part Number: 76227913884
    Options: 47, White
    Description: Click Here For Sizing Chart The Seoul GORE-TEX sneakers impress with more than just a stylish look. The GORE-TEX membrane...
    Fits: This product fits most motorcycles
    Mens 100 Years T-shirt
    Part Number: 76617109858
    Options: XL
    Description: Click Here For Sizing Chart Comfortable T-shirt with raglan sleeves and large print on the front. • Large motif print on the...
    Not For Sale
    Womens BMW Motorrad T-shirt, White
    MSRP $45.00
    Part Number: 76617109773
    Description: Click Here For Sizing Chart Classic T-shirt with a round neck and imprint on the front. • BMW Motorrad inscription on the chest...
    Unisex Pro Race GTX Boots
    MSRP $259.00
    Part Number: 76228523086
    Description: Click Here For Sizing Chart The wind- and waterproof Pro Race GORE-TEX boots have a modern look and several protection features....
    Men's Ride Quilted Jacket
    Part Number: 76238567421
    Options: XL
    Description: The breathable Ride quilting jacket is especially thin, meaning it can be worn under all BMW Motorrad jackets. Thanks to the stylish,...
    Not For Sale
    Men's GS Rallye AIR Jacket
    MSRP $549.00
    Part Number: 76118504404
    Options: 98
    Description: The extremely abrasion-resistant and breathable poly-amide material provides optimum ventilation and, in combination with multiple NP3...
    Fits: This product fits most motorcycles
    Womens BMW Motorrad Polo Shirt
    MSRP $65.00
    Part Number: 76617109737
    Description: Click Here For Sizing Chart Classic polo shirt with a print on the front and back. • Small, straight BMW Motorrad inscription on...
    Unisex HighViz Vest
    MSRP $39.00
    Part Number: 76429899297
    Options: XS
    Description: The sleeveless HighViz vest is designed for particularly safety-conscious riders. Its neon yellow color and reflective applications on...
    GS Cap, Blue
    Part Number: 76618546740
    Description: 6-panel baseball cap with snapback straps and logo applications. • Black bias strips with blue BMW Motorrad lettering • GS logo as flat...
    Fits: This product fits most motorcycles
    Not For Sale
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    MSRP $25.57
    Part Number: 1408403437
    Fits: This product fits most motorcycles
    Womens GS Namib GTX Pants
    MSRP $699.00
    Part Number: 76137913114
    Description: The GS Namib GORE-TEX trousers with NP3 joint and hip protectors make the hearts of Enduro fans beat faster. Adjustable trouser waistband...
    Mens GS Rallye AIR Jacket
    MSRP $599.00
    Part Number: 76117913286
    Description: The GS Rallye AIR jacket is particularly well suited for rides in hot weather. The extremely abrasion-resistant and breathable polyamide...
    Womens Bavella Jacket
    MSRP $599.00
    Part Number: 76147913678
    Options: 38
    Description: Click Here For Sizing Chart The Bavella jacket is equipped to handle a wide variety of temperatures. The insert with BMW Climate...
    F 850 GS T-Shirt
    MSRP $29.00
    Part Number: 76618403799
    Options: 2XL
    Description: Crew neck t-shirt Large-area motif print with F 800 GS lettering on the front Material: 100% cotton single jersey Color: White...
    Mens Reschen GTX Jacket
    MSRP $799.00
    Part Number: 76117913400
    Options: 52
    Description: The wearing comfort of the Reschen GORE-TEX jacket pays off especially on long tours. The watertight and breathable Enduro jacket...
    Women's XRide Jacket
    MSRP $529.39
    Part Number: 76131539735
    Options: Jacket - 34
    Description: The XRide jacket for women and men is made from an elastic polyamide outer material and combines the highest wear comfort with...
    Mens GS Function T-shirt
    MSRP $59.00
    Description: Click Here For Sizing Chart Functional merino t-shirt with large print on the back. Product highlights • Loose fit • Pleasant to...
    Women's XRide Pants
    MSRP $649.00
    Part Number: W3HXR02402010220
    Description: The XRide pants for women and men are made from elastic polyamide outer material and combine the highest wear comfort with comprehensive...
    Mens BMW Motorrad Vintage T-shirt
    MSRP $35.00
    Part Number: 72602473201
    Description: Click Here For Sizing Chart Retro look with a vintage Roundel and BMW Motorrad text featured in a classic serif font. • BMW...
    Men's PureXcursion Jacket, Olive
    MSRP $459.00
    Part Number: 76128504926
    Options: 58
    Description: • Robust jacket for off-road use • Outer material made of a cotton-polyamide blended fabric • Ventilation on the chest and back for a...
    Fits: This product fits most motorcycles
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    MSRP $12.52
    Part Number: 1417686141
    Fits: This product fits most motorcycles
    Men's PaceDry Tour Jacket
    MSRP $589.00
    Part Number: 76117922932
    Options: Jacket - 54
    Description: The PaceDry Tour jacket features a high degree of wear comfort. The outer material is made of CORDURA 500D. The Z-Liner design makes it...
    Unisex Cruisecomfort Boots
    MSRP $249.00
    Part Number: 76221541342
    Options: Boots - 48
    Description: Click Here For Sizing Chart The waterproof and breathable CruiseComfort boots impress the touring rider with many practical...
    Logo T-shirt, Women
    MSRP $35.00
    Part Number: 76617914690
    Options: L
    Description: Classic women's T-shirt from BMW Motorrad. · Large front print of "BMW" logo · Material: 100% cotton · Color: White · Sizes: XS–3XL
    Fits: This product fits most motorcycles
    Men's Pankow Boots
    MSRP $379.00
    Part Number: M-PankowBoot-072299
    Description: • Boots in classic, high-end design • Copper-colored details such as buckles and zippers • Long zipper along calves and heels for...
    Fits: This product fits most motorcycles
    Womens BMW Motorrad T-shirt, White
    MSRP $45.00
    Part Number: 76617109777
    Description: Click Here For Sizing Chart Classic T-shirt with a round neck and imprint on the front. • BMW Motorrad inscription on the chest...
    Mens GS Rallye AIR Jacket
    MSRP $599.00
    Part Number: 76117913292
    Description: The GS Rallye AIR jacket is particularly well suited for rides in hot weather. The extremely abrasion-resistant and breathable polyamide...
    Mens Motorsport Long Sleeve Shirt
    Part Number: 76618536689
    Options: XL
    Description: Click Here For Sizing Chart Sporty long sleeve shirt with tricolor Motorsport graphic design. • Tricolor graphic print on...
    Not For Sale
    Men's Rallye Insert Trousers
    MSRP $119.00
    Part Number: 76118392063
    Options: Trousers - 114
    Description: None
    Womens Aircooled T-shirt
    MSRP $45.00
    Part Number: 76617109882
    Description: Click Here For Sizing Chart Slim fit T-shirt with a round neckline and large print motif on the front. • Large motif print with...
    Unisex Tour Windbreaker Balaclava
    MSRP $35.00
    Part Number: 76237105778
    Description: Click Here For Sizing Chart High-quality balaclava for winter and changing weather Product highlights • Windbreaker membrane,...
    Unisex Flow Boots
    MSRP $299.00
    Part Number: 76229898432
    Options: Boots - 40
    Description: The lined, printed Flow boots for men and women are super lightweight short-shaft boots for the summer. The selection of textiles ensures...
    Women's PaceDry Adventure Jacket
    MSRP $589.00
    Part Number: 76137922948
    Options: Jacket - 40
    Description: The PaceDry Adventure jacket features a high degree of wear comfort. The outer material is made of CORDURA 500D. The Z-Liner design makes...
    R 90 Daytona T-Shirt
    MSRP $29.00
    Part Number: 76618403824
    Options: 3XL
    Description: Crew neck t-shirt Large-area motif print with DAYTONA ORANGE lettering on the rear Small print on the front with DAYTONA ORANGE...
    R 1250 GS Adventure T-Shirt
    MSRP $29.00
    Part Number: W9CT00-1802060020
    Description: T-shirt with round neck Large-area motif print with 'RALLYE GS' lettering and motorcycle print on the front Material: 100% cotton...
    Mens "Make Life a Ride" Zip hoodie
    MSRP $99.00
    Part Number: 76617109812
    Options: 2XL
    Description: Click Here For Sizing Chart Comfortable hoodie pullover with zip fastener and large print on the back. • Vertical “Make Life a...
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    MSRP $36.09
    Part Number: 1418526797
    Fits: This product fits most motorcycles
    Men's GS Rallye GTX Jacket
    MSRP $899.00
    Part Number: 76118504461
    Options: 46
    Description: • Enduro jacket in an up-to-date look • AirVent system with mesh lining and separate zipper • Waterproof GORE-TEX® outsert for any...
    Fits: This product fits most motorcycles
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    Unisex Pro Race GTX Boots, Black
    MSRP $259.00
    Part Number: 76228523082
    Description: Click Here For Sizing Chart The wind- and waterproof Pro Race GORE-TEX boots have a modern look and several protection features....
    Fits: This product fits most motorcycles
    Womens Reschen GTX Jacket
    MSRP $799.00
    Part Number: 76137913424
    Options: 44
    Description: • Watertight (water column: 27,000 mm) Enduro jacket perfect for touring • Breathable but windproof thanks to Z-Liner design with...
    Fits: This product fits most motorcycles
    Men's Rallye Insert Trousers
    MSRP $119.00
    Part Number: 76118392059
    Options: Trousers - 98
    Description: None
    Unisex RainLock Pants
    MSRP $89.00
    Part Number: 76817921667
    Options: 3XL
    Description: Click Here For Sizing Chart Thanks to their waterproof PU coating, RainLock pants provide reliable protection against wind and...
    Womens GS Namib GTX Pants
    MSRP $699.00
    Part Number: 76137913127
    Options: 84
    Description: The GS Namib GORE-TEX trousers with NP3 joint and hip protectors make the hearts of Enduro fans beat faster. Adjustable trouser waistband...
    Flat Twin T-shirt, Men, Green
    MSRP $35.00
    Part Number: 76618536545
    Options: XL
    Description: Classic crew neck T-shirt with graphic print on the chest. • Regular fit • Motorcycle graphic as print on the front • Embroidered BMW...
    Fits: This product fits most motorcycles
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    MSRP $59.51
    Part Number: 1418542547
    Fits: This product fits most motorcycles
    Barcelona GTX Pants
    MSRP $449.00
    Part Number: 76128504867
    Options: 2XL
    Description: • Waterproof and breathable pants (27,000 mm height of water head) • Stretch inserts for enhanced comfort • 3 layers of GORE-TEX® Pro •...
    Fits: This product fits most motorcycles
    Unisex Flow Boots
    Part Number: 76229898430
    Options: Boots - 38
    Description: The lined, printed Flow boots for men and women are super lightweight short-shaft boots for the summer. The selection of textiles ensures...
    Not For Sale
    Mens Motorsport T-shirt
    MSRP $35.00
    Part Number: 76618536549
    Options: M
    Description: Click Here For Sizing Chart Sporty T-shirt with tricolour graphic print. • Tricolour Motorsport graphic print on left shoulder •...
    Womens GS Rallye GTX Jacket
    MSRP $999.00
    Description: • Enduro jacket in a modern look • Watertight GORE-TEX-Outsert (water column: 27,000 mm) for all weathers • Extremely abrasion-resistant...
    Fits: This product fits most motorcycles
    Mens PureRider Pants
    MSRP $329.00
    Part Number: 76127913761
    Description: Click Here For Sizing Chart The PureRider trousers don’t only look on the bike, but also look good in everyday life. They are...
    Womens Roadcrafted 100 Years Denim Jacket
    MSRP $559.00
    Description: Click Here For Sizing Chart The RoadCrafted 100 Years denim jacket combines a classic look and commemorates BMW Motorrad’s 100th...
    Fits: This product fits most motorcycles
    Men's GS Rallye AIR Jacket
    MSRP $549.00
    Part Number: 76118504406
    Options: 106
    Description: The extremely abrasion-resistant and breathable poly-amide material provides optimum ventilation and, in combination with multiple NP3...
    Fits: This product fits most motorcycles
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    MSRP $51.94
    Part Number: 1408525770
    Fits: This product fits most motorcycles
    Women's Motorsport T-Shirt
    Part Number: 76629446460
    Options: S
    Description: The Motorsport t-shirt is a must-have for every racing fan. The BMW logo, BMW M logo and printed letterings such as 'BMW Motorrad...
    Not For Sale
    R51 T-Shirt
    MSRP $29.00
    Part Number: 76618403802
    Options: XS
    Description: Crew neck t-shirt Large-area motif print with THE LEGEND lettering and small BMW logo on the rear Small print on the front with THE...
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    MSRP $27.71
    Part Number: -1477661346
    Fits: This product fits most motorcycles
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    MSRP $84.56
    Part Number: 1409830627
    Fits: This product fits most motorcycles
    Make Life a Ride T-shirt, Men, White
    MSRP $42.85
    Part Number: 76618536458
    Options: S
    Description: Classic T-shirt with large print on the front. • Regular fit • Crew neck • Large Make Life a Ride print on the front • Small BMW Motorrad...
    Fits: This product fits most motorcycles
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    MSRP $51.94
    Part Number: 1477706747
    Fits: This product fits most motorcycles

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