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BMW E34 525i M50 2.5L

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BMW E34 525i M50 2.5L Performance Engine & Drivetrain Parts

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Spal Electric Fan Harness with Relay

ES#4147343 - FRH - Spal Electric Fan Harness with Relay - Electric Fan Relay - 40 amp, 12V, single pole wiring harness kit - Spal - Audi BMW MINI

Electric Fan Relay - 40 amp, 12V, single pole wiring harness kit

Brand:
Spal - Corporate Logo
ES#:
4147343
Mfg#:
FRH
Ships in 3 Business Days
12% off MSRP

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

$112.99

This product was last offered at the strikethrough price on
09-12-2026

$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

USB To Serial Adapter

ES#4390908 - USB-2920 - USB To Serial Adapter - Used with your MegaSquirt ECU! - MegaSquirt - BMW

Used with your MegaSquirt ECU!

Brand:
MegaSquirt - Corporate Logo
ES#:
4390908
Mfg#:
USB-2920
Ships in 1 Business Day
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount Bushing - Heritage Series

ES#5471032 - PFF5-4655H - Transmission Mount Bushing - Heritage Series - Slate-grey polyurethane mounts stop transmission twist for crisp, precise shifting. - Powerflex - BMW

Slate-grey polyurethane mounts stop transmission twist for crisp, precise shifting.

Brand:
Powerflex - Corporate Logo
ES#:
5471032
Mfg#:
PFF5-4655H
Back Ordered
$118.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump

ES#2162544 - 16147161387 - Fuel Pump - Replace dead fuel pumps. - Bosch - BMW

Replace dead fuel pumps. We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2162544
Mfg#:
16147161387
Ships in 1 Business Day
$352.84 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Teflon Shifter Bushing Kit

ES#4688630 - 2511-002BKT - Teflon Shifter Bushing Kit - Remove the slop from the shifter arm for improved shifter feel - even on brand-new cars! - ECS - BMW

Remove the slop from the shifter arm for improved shifter feel - even on brand-new cars! 10X Entries Into Our F80 M3 Sweepstakes

For vehicles with production date from 10/1994

Brand:
ECS - Corporate Logo
ES#:
4688630
Mfg#:
2511-002BKT
In Stock
ON SALE! SAVE 25%
$73.98

This product was last offered at the strikethrough price on
06-13-2026

$55.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AGA Tools Performance Clutch Pin - Grooved

ES#4464332 - AGA-CPP-223-328 - AGA Tools Performance Clutch Pin - Grooved - An essential upgrade for every manual transmission equipped BMW! - AGA Tools - BMW

An essential upgrade for every manual transmission equipped BMW!

Brand:
AGA Tools - Corporate Logo
ES#:
4464332
Mfg#:
AGA-CPP-223-328
In Stock
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Electronic Boost Control (EBC) Solenoid Kit

ES#4390910 - EBC_Sol_kit - Electronic Boost Control (EBC) Solenoid Kit - This electronic boost control solenoid can be used with the MS3-Pro/MSPNP - MegaSquirt - BMW

This electronic boost control solenoid can be used with the MS3-Pro/MSPNP

Brand:
MegaSquirt - Corporate Logo
ES#:
4390910
Mfg#:
EBC_SOL_KIT
Ships in 4 Business Days
$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Main Bearing Set - M5X

ES#4758994 - 5150-HPMBS-M50 - Performance Main Bearing Set - M5X - Performance Coated Main Bearing Set for the M5X Engine Platform - Std. Size - 5150 Autosport - BMW

Performance Coated Main Bearing Set for the M5X Engine Platform - Std. Size

Brand:
5150 Autosport - Corporate Logo
ES#:
4758994
Mfg#:
5150-HPMBS-M50
Ships in 3 Business Days
$299.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supertech BMW S52 Steel Spring Retainer - Set Of 24

ES#4675741 - RET-HBK-ST-24 - Supertech BMW S52 Steel Spring Retainer - Set Of 24 - Rev higher and drive faster with confidence. - Supertech - BMW

Rev higher and drive faster with confidence.

Brand:
Supertech - Corporate Logo
ES#:
4675741
Mfg#:
RET-HBK-ST-24
In Stock at Vendor
20% off MSRP

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

$352.99

This product was last offered at the strikethrough price on
09-12-2026

$281.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MSPNP And DIYPNP IAT Sensor Kit – Aluminum Bung

ES#4390909 - PNP_IAT-A - MSPNP And DIYPNP IAT Sensor Kit Aluminum Bung - This is a simple kit to make it easier for you when removing your AFM/MAF when using a MegaSquirt ECU - MegaSquirt - BMW

This is a simple kit to make it easier for you when removing your AFM/MAF when using a MegaSquirt ECU

Brand:
MegaSquirt - Corporate Logo
ES#:
4390909
Mfg#:
PNP_IAT-A
Ships in 5 Business Days
$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Catch Can O-ring

ES#3097721 - N1.50X051 - ECS Catch Can O-ring - Replacement ECS catch can O-ring - ECS - Audi BMW Volkswagen MINI

Replacement ECS catch can O-ring 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3097721
Mfg#:
N1.50X051
In Stock
ON SALE! SAVE 25%
$5.99

This product was last offered at the strikethrough price on
06-13-2026

$4.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Ignition Service Kit

ES#4781604 - 01399791390PKT2 - Performance Ignition Service Kit - Everything you need to service your ignition system including Bosch Platinum+4 spark plugs and Bav Auto ignition coils - Assembled By ECS - BMW

Everything you need to service your ignition system including Bosch Platinum+4 spark plugs and Bav Auto ignition coils 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4781604
Mfg#:
01399791390PKT2
Ships on Feb 5, 2027
ON SALE! SAVE 19%
$284.99

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

$231.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pump Upgrade Kit - M50/M52/S50/S52

ES#4759061 - 5150-OPUK-M50 - Oil Pump Upgrade Kit - M50/M52/S50/S52 - Fix That Notorious Oil Pump Failure Before it Even Happens! - 5150 Autosport - BMW

Fix That Notorious Oil Pump Failure Before it Even Happens!

Brand:
5150 Autosport - Corporate Logo
ES#:
4759061
Mfg#:
5150-OPUK-M50
Back Ordered
$229.99 USD
Free Shipping
on orders $49 and up

Universal 14" Electric Fan - Black

ES#4147278 - 30100385 - Universal 14" Electric Fan - Black - 1038 CFM. High performance puller fan with curved blades. - Spal - Audi BMW MINI

1038 CFM. High performance puller fan with curved blades.

Brand:
Spal - Corporate Logo
ES#:
4147278
Mfg#:
30100385
In Stock at Vendor
15% off MSRP

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

$130.99

This product was last offered at the strikethrough price on
09-12-2026

$111.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Rod Bearing Set - M5X

ES#4758993 - 5150-HPRBS-M50 - Performance Rod Bearing Set - M5X - Performance Coated Rod Bearing Set for the M5X Engine Platform - Std. Size - 5150 Autosport - BMW

Performance Coated Rod Bearing Set for the M5X Engine Platform - Std. Size

Brand:
5150 Autosport - Corporate Logo
ES#:
4758993
Mfg#:
5150-HPRBS-M50
Ships in 3 Business Days
$219.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine & Drivetrain Parts

Worn mounts, bushings, and other drivetrain components rob performance. Replace or upgrade your drivetrain with our extensive catalog of mounts, bushings, clutch kits, and more.

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

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