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BMW E34 525i M50 2.5L

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BMW E34 525i M50 2.5L Engine Parts & Accessories

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Remanufactured Alternator - 140amp

ES#2574920 - 12311744567KT - Remanufactured Alternator - 140amp - Includes a $50 refundable core charge - Genuine BMW - BMW

Includes a $50 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 04/1995

Brand:
Genuine BMW - Corporate Logo
ES#:
2574920
Mfg#:
12311744567KT
Ships in 6 Business Days
$1571.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Alternator - 80 Amp

ES#2731915 - 12311744565KT - Remanufactured Alternator - 80 Amp - Includes a $200.00 refundable core charge - Genuine BMW - BMW

Includes a $200.00 refundable core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2731915
Mfg#:
12311744565KT
Ships in 6 Business Days
$1357.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor

ES#2977052 - 11781735680 - Oxygen Sensor - Fuel control and emissions control sensor - Genuine BMW - BMW

Fuel control and emissions control sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2977052
Mfg#:
11781735680
Ships in 6 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.

$445.99

This product was last offered at the strikethrough price on
07-07-2026

$418.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator

Standard replacement radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with a production date up to 09/1992

Brand:
Genuine BMW - Corporate Logo
ES#:
2767679
Mfg#:
17111723527
Ships in 6 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.

$1286.99

This product was last offered at the strikethrough price on
07-07-2026

$1212.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Remanufactured Mass Air Flow Sensor

Includes $300 core charge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 09/1992

Brand:
Genuine BMW - Corporate Logo
ES#:
2966349
Mfg#:
13627527518KT
Ships in 6 Business Days
$2277.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cover

ES#31346 - 12521714254 - Cover - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
31346
Mfg#:
12521714254
Ships in 7 Business Days
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Bearing Shell - Yellow

ES#19970 - 11211706850 - Upper Bearing Shell - Yellow - Yellow designation crankshaft bearing shell. 59.75mm(+0.25) - Genuine BMW - BMW

Yellow designation crankshaft bearing shell. 59.75mm(+0.25) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
19970
Mfg#:
11211706850
Ships in 9 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.

$38.99

This product was last offered at the strikethrough price on
07-07-2026

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

PISTON

ES#21304 - 11251722500 - PISTON - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
21304
Mfg#:
11251722500
Ships in 7 Business Days
2% off MSRP

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

$373.99

This product was last offered at the strikethrough price on
07-07-2026

$365.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Thrust Bearing - Green

ES#19949 - 11211705816 - Crankshaft Thrust Bearing - Green - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
19949
Mfg#:
11211705816
Ships in 9 Business Days
2% off MSRP

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

$170.99

This product was last offered at the strikethrough price on
07-07-2026

$167.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bearing Shell Green

ES#19991 - 11211717780 - Bearing Shell Green - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
19991
Mfg#:
11211717780
Ships in 9 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.

$38.99

This product was last offered at the strikethrough price on
07-07-2026

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Premium Oil change kit

ES#4069270 - E36POCIKT - Premium Oil change kit - Includes BMW 5w-30 synthetic oil, K&P reusable oil filter and Turner Motorsport titanium magnetic oil drain plug. - Assembled By ECS - BMW

Includes BMW 5w-30 synthetic oil, K&P reusable oil filter and Turner Motorsport titanium magnetic oil drain plug. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4069270
Mfg#:
E36POCIKT
Ships on Jul 23, 2026
ON SALE!
$270.07 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Fuel Tank Base

ES#35755 - 16111177873 - Fuel Tank Base - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
35755
Mfg#:
16111177873
Special Order: No Guaranteed ETA
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Oil Filter Housing

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

Brand:
VAC Motorsports - Corporate Logo
ES#:
4766230
Mfg#:
VAC-BOFH-M50-WS
Ships on Jul 23, 2026
$649.99 USD
Free Shipping
on orders $49 and up

E34 Throttle Body Return Hose

ES#3235173 - 11531738054 - E34 Throttle Body Return Hose - Replace your leaking hose - Gates - BMW

Replace your leaking hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with a production date from 03/1991

Brand:
Gates - Corporate Logo
ES#:
3235173
Mfg#:
11531738054
Ships on Jul 27, 2026
$64.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Engine Conversion Gasket Set

The Elring Engine Conversion Gasket Set provides an all-in-one sealing solution engineered to restore the factory-tight integrity of your crankcase. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5480535
Mfg#:
816.982
Ships in 8 Business Days
Auto Notify
$73.99 USD
Free Shipping
on orders $49 and up

Oil Filter - Cartridge with Gasket Kit

Ensures that your engine oil remains free of contaminants, carbon deposits, and metallic debris. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
3676558
Mfg#:
11422244332
Ships on Jul 29, 2026
$21.99 USD
Free Shipping
on orders $49 and up

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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