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BMW E31 850i Engine Parts & Accessories

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Heavy Duty Ground Cable Upgrade (12421737755)

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 1-2 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

Gas Cap - Non Locking

ES#35962 - 16111184718 - Gas Cap - Non Locking - Includes sealing gasket - Genuine BMW - BMW

Includes sealing gasket affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
35962
Mfg#:
16111184718
In Stock
15% off MSRP

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

$69.99

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

$59.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW Ignition Knock (Detonation) Sensor

ES#28451 - 12141741131 - BMW Ignition Knock (Detonation) Sensor - Detects irregular vibrations from your engine. - Genuine BMW - BMW

Detects irregular vibrations from your engine. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
28451
Mfg#:
12141741131
Ships in 2 Business Days
6% off MSRP

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

$196.99

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

$184.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ground Cable

ES#30243 - 12421737755 - Ground Cable - Length: 380mm - Genuine BMW - BMW

Length: 380mm affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
30243
Mfg#:
12421737755
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.

$42.99

This product was last offered at the strikethrough price on
03-29-2026

$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Clutch

ES#2534569 - 11527502804 - Radiator Fan Clutch - Keep your engine cool - URO - BMW

Keep your engine cool affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2534569
Mfg#:
11527502804
In Stock
$91.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#37753 - 17111702762 - Radiator - Inspect regularly for fin and end tank damage - Genuine BMW - BMW

Inspect regularly for fin and end tank damage affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37753
Mfg#:
17111702762
Ships in 4 Business Days
6% off MSRP

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

$756.99

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

$708.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Relay - White Green

ES#4940142 - 61368373700 - Relay - White Green - Replaces relays of the same color - Bremmen Parts - BMW MINI

Replaces relays of the same color affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4940142
Mfg#:
61368373700
In Stock
ON SALE! SAVE 23%
$18.99

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

$14.68 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dipstick O-Ring

ES#2588674 - 11431707164 - Dipstick O-Ring - Rubber O-ring - Victor Reinz - BMW

Rubber O-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
2588674
Mfg#:
11431707164
In Stock
$7.19 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Block Coolant Drain Plug - M14x1.5

ES#14588 - 07119904539 - Engine Block Coolant Drain Plug - M14x1.5 - Used to drain the coolant out of the engine block - Genuine BMW - BMW

Used to drain the coolant out of the engine block affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
14588
Mfg#:
07119904539
In Stock
$8.63 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Vent Hose

ES#32891 - 13311722565 - Fuel Vent Hose - Replacement vent hose for the fuel purge system - Genuine BMW - BMW

Replacement vent hose for the fuel purge system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
32891
Mfg#:
13311722565
In Stock
3% off MSRP

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

$68.99

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

$66.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector Clip - Priced Each

ES#33392 - 13531274729 - Fuel Injector Clip - Priced Each - Secures your fuel injectors in place - Genuine BMW - BMW

Secures your fuel injectors in place affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
33392
Mfg#:
13531274729
In Stock
$1.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump Gasket - Priced Each

ES#35805 - 16111179637 - Fuel Pump Gasket - Priced Each - The rubber gasket found between the fuel pump and the lock ring - Genuine BMW - BMW

The rubber gasket found between the fuel pump and the lock ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
35805
Mfg#:
16111179637
In Stock
$20.99

This product was last offered at the strikethrough price on
04-01-2026

$11.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Fan Shroud

ES#3023854 - 17101440252 - Cooling Fan Shroud - Create your best air flow - Mahle-Behr - BMW

Create your best air flow affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
3023854
Mfg#:
17101440252
Ships in 1 Business Day
$122.62 USD
This product is lifetime replacement eligible Lifetime Replacement

Fuel Hose

ES#213374 - 16121176440 - Fuel Hose - 12x18mm and 1 meter in length - Genuine BMW - BMW

12x18mm and 1 meter in length affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
213374
Mfg#:
16121176440
Ships in 2 Business Days
4% off MSRP

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

$55.99

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

$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#37936 - 17111741167 - Coolant Expansion Tank - Does not include level sensor and cap - Genuine BMW - BMW

Does not include level sensor and cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37936
Mfg#:
17111741167
Ships in 2 Business Days
4% off MSRP

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

$164.99

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

$158.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2 Pin Connector

ES#4772590 - 12521427615 - 2 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the engine oil pressure switch. - ECS - BMW MINI

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

Brand:
ECS - Corporate Logo
ES#:
4772590
Mfg#:
12521427615
Ships on Jul 27, 2026
Auto Notify
ON SALE! SAVE 37%
$7.99

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

$5.01 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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