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BMW M3 Engine Electrical Harnesses

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ES#4731941 - 101-0212 - Motiv ReFlex Plug-n-Play Ethanol Sensor Harness - For Vehicles With Motiv ReFlex Unit Currently Installed - Motiv Motorsports - BMW

For Vehicles With Motiv ReFlex Unit Currently Installed affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Vehicles With Motiv ReFlex Unit Currently Installed Only

Brand:
Motiv Motorsports - Corporate Logo
ES#:
4731941
Mfg#:
101-0212
In Stock
$49.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4810312 - 900.1008 - ReFlex+ Main Injector Harness - Inline-6 - Main Injector Harness For Installation of ReFlex+ For Inline-6 BMW Engines - Motiv Motorsports - BMW

Main Injector Harness For Installation of ReFlex+ For Inline-6 BMW Engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Motiv Motorsports - Corporate Logo
ES#:
4810312
Mfg#:
900.1008
In Stock
$200.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4810316 - 900.1016 - ReFlex+ Install Harness - Flying Lead - Universal - Flying Lead Installation Harness - Motiv Motorsports - BMW

Universal - Flying Lead Installation Harness affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Motiv Motorsports - Corporate Logo
ES#:
4810316
Mfg#:
900.1016
In Stock
$95.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#30842 - 12517501135 - Engine wiring harness  - New DME wire harness - Genuine BMW - BMW

New DME wire harness affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with Manual transmission

Brand:
Genuine BMW - Corporate Logo
ES#:
30842
Mfg#:
12517501135
Ships in 3 Business Days
5% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$1683.99

This product was last offered at the strikethrough price on
06-03-2026

$1600.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2954271 - 12517849627 - Genuine BMW Wiring Harness - Critical part of the valvetronic servermotor system - Genuine BMW - BMW

Critical part of the valvetronic servermotor system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2954271
Mfg#:
12517849627
Ships in 1-2 days
7% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$219.99

This product was last offered at the strikethrough price on
06-03-2026

$204.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4826864 - 3774SCH01A - Schwaben Self-Adjusting Wire Crimper & Stripper Pliers - Make wiring harness repairs with ease! Featuring adjustable, ratcheting wire stripper jaws for efficient insulation removal. - Schwaben - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

Make wiring harness repairs with ease! Featuring adjustable, ratcheting wire stripper jaws for efficient insulation removal. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Schwaben - Corporate Logo
ES#:
4826864
Mfg#:
3774SCH01A
In Stock
ON SALE! SAVE 15%
$22.99

This product was last offered at the strikethrough price on
05-02-2026

$19.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4939982 - 059235LA01 - Heavy Duty Ground Cable Upgrade (12421737755) - Restore lasting electrical reliability to your E30, E36, or E46 with a high-quality, corrosion-proof ground strap engineered for long-term performance. - ECS - BMW

Restore lasting electrical reliability to your E30, E36, or E46 with a high-quality, corrosion-proof ground strap engineered for long-term performance. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4939982
Mfg#:
059235LA01
Ships in 4 Business Days
ON SALE! SAVE 42%
$39.99

This product was last offered at the strikethrough price on
01-03-2026

$23.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4772596 - 12527519996 - 3 Pin Connector  - Includes connector housing with terminals and seals. Commonly used for the pencil-style ignition coil connector. - ECS - BMW MINI

Includes connector housing with terminals and seals. Commonly used for the pencil-style ignition coil connector. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4772596
Mfg#:
12527519996
In Stock
ON SALE! SAVE 39%
$10.99

This product was last offered at the strikethrough price on
05-02-2026

$6.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#31076 - 12517831646 - E46 M3 Engine Wiring Harness - Wiring harness for the engine control module - Genuine BMW - BMW

Wiring harness for the engine control module affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
31076
Mfg#:
12517831646
Ships in 4 Business Days
3% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$782.99

This product was last offered at the strikethrough price on
06-03-2026

$755.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2954727 - 61132359997 - Repair Kit for Socket Housing - 3pin  - Electrical Socket - Genuine BMW - BMW MINI

Electrical Socket affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2954727
Mfg#:
61132359997
In Stock
7% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$26.99

This product was last offered at the strikethrough price on
06-03-2026

$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#31647 - 12527516864 - Socket Housing - Priced Each  - Electrical socket housing - Genuine BMW - BMW

Electrical socket housing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
31647
Mfg#:
12527516864
In Stock
14% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$6.99

This product was last offered at the strikethrough price on
06-03-2026

$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#31304 - 12521707283 - Electrical Connector Housing  - The housing for a 20 pin connector - Genuine BMW - BMW

The housing for a 20 pin connector affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
31304
Mfg#:
12521707283
In Stock
5% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$20.99

This product was last offered at the strikethrough price on
06-03-2026

$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3046199 - 61132359992 - Repair Kit For Socket  - Repair those damaged wire/connectors - Genuine BMW - BMW

Repair those damaged wire/connectors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
3046199
Mfg#:
61132359992
In Stock
7% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$14.99

This product was last offered at the strikethrough price on
06-03-2026

$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#165762 - 61138373332 - Socket Housing - Priced Each  - Used in several models of BMW's / MINIs - Genuine BMW - BMW MINI

Used in several models of BMW's / MINIs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
165762
Mfg#:
61138373332
In Stock
$6.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#31306 - 12521707302 - Wiring harness cap - Protective cap for your wiring harness - Genuine BMW - BMW

Protective cap for your wiring harness affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
31306
Mfg#:
12521707302
Ships in 1-2 days
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#27735 - 12111710553 - Beauty Cap - Ignition wire protection cap - Genuine BMW - BMW

Ignition wire protection cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
27735
Mfg#:
12111710553
Ships in 1-2 days
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Electrical Harnesses

Wiring gremlins are no fun. Many times, it's easier to just replace the harness than track down the short, sometimes that's all you can do. We offer full wiring harness replacements for your repair or to set your build up for success and keep everything communicating as it should.

Let us help you find the parts that fit your BMW

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Manufacturer names and/or part numbers are used only for identification purposes.

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