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BMW M3 Engine Parts & Accessories

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Wiring Harness Engine Transmission Module - BMW E46 M3

ES#31077 - 12517831649 - Wiring Harness Engine Transmission Module - BMW E46 M3 - Replacement wiring harness for engine transmission modules. - Genuine BMW - BMW

Replacement wiring harness for engine transmission modules. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
31077
Mfg#:
12517831649
Special Order: No Guaranteed ETA
3% off MSRP

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

$608.99

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

$587.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Group A Pulley Kit

ES#3426698 - 12311311449KT - Group A Pulley Kit - Race-bred performance and reliability for your E30 M3! - For racing use only - Genuine BMW Motorsport - BMW

Race-bred performance and reliability for your E30 M3! - For racing use only affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW Motorsport - Corporate Logo
ES#:
3426698
Mfg#:
12311311449KT
Ships on Jul 16, 2026
$1696.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Filter

ES#2926343 - e2994 - Air Filter - Protect your engine, improve performance - K&N - BMW

Protect your engine, improve performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 09/2009

Brand:
K&N - Corporate Logo
ES#:
2926343
Mfg#:
E2994
Special Order: No Guaranteed ETA
$157.99 USD
Free Shipping

Stage 3 Low Pressure Fuel Pump

ES#4784869 - SP-S58-S3LPFP - Stage 3 Low Pressure Fuel Pump - Spool Performance - BMW

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

Brand:
Spool Performance - Corporate Logo
ES#:
4784869
Mfg#:
SP-S58-S3LPFP
Special Order: No Guaranteed ETA
$1399.00 USD
Free Shipping
on orders $49 and up

S52 Power Pack

ES#4013686 - e36ms52ppkKT - S52 Power Pack - Improve your cars performance with a power pack that includes effective, easy to do upgrades! - Assembled By ECS - BMW

Improve your cars performance with a power pack that includes effective, easy to do upgrades! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with Bosch alternator only

Brand:
Assembled By ECS - Corporate Logo
ES#:
4013686
Mfg#:
E36MS52PPKKT
Ships on Jul 17, 2026
Auto Notify
ON SALE! SAVE 19%
$797.99

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

$644.04 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

S52 Power Pack

ES#4013693 - e36ms52ppkKT2 - S52 Power Pack - Improve your cars performance with a power pack that includes effective, easy to do upgrades! - Assembled By ECS - BMW

Improve your cars performance with a power pack that includes effective, easy to do upgrades! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with Valeo alternator only

Brand:
Assembled By ECS - Corporate Logo
ES#:
4013693
Mfg#:
E36MS52PPKKT2
Ships on Jul 17, 2026
Auto Notify
ON SALE! SAVE 19%
$796.99

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

$643.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

WPC Treated Main Bearing Set

Stronger & smoother, with less friction for your BMW! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4643079
Mfg#:
11217849234KT2
Ships on Jul 21, 2026
ON SALE!
$888.86

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

$844.42 USD
This product is lifetime replacement eligible Lifetime Replacement

S14 High Performance Rod Bearing Set - +0.25 Oversized

ES#5396379 - 4B1568H-.25 - S14 High Performance Rod Bearing Set - +0.25 Oversized - Includes upper and lower bearing shells for a complete rod bearing replacement. - ACL - BMW

Includes upper and lower bearing shells for a complete rod bearing replacement. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ACL - Corporate Logo
ES#:
5396379
Mfg#:
4B1568H-.25
Special Order: No Guaranteed ETA
$118.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ACL Rod Bearing Set - 0.50 Oversized

Includes upper and lower bearing shells for a complete rod bearing replacement. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ACL - Corporate Logo
ES#:
4839674
Mfg#:
8B1580H-.50
Special Order: No Guaranteed ETA
$169.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ACL Engine Main Bearings - 0.25 Oversized

Designed with performance and longevity in mind affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ACL - Corporate Logo
ES#:
4839654
Mfg#:
5M1581H-.25
Special Order: No Guaranteed ETA
$209.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ACL Engine Main Bearings - 0.50 Oversized

Designed with performance and longevity in mind affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ACL - Corporate Logo
ES#:
4839655
Mfg#:
5M1581H-.50
Special Order: No Guaranteed ETA
$209.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AutoTecknic Dry Carbon Fiber Cooling Shroud - G80 M3 | G82/ G83 M4

ES#4660354 - BM-0701 - AutoTecknic Dry Carbon Fiber Cooling Shroud - G80 M3 | G82/ G83 M4 - This cooling shroud is not only functional, but the aesthetics of carbon fiber will also improve the overall appearance of your vehicles engine bay. - AUTOTECKNIC - BMW

This cooling shroud is not only functional, but the aesthetics of carbon fiber will also improve the overall appearance of your vehicles engine bay. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AUTOTECKNIC - Corporate Logo
ES#:
4660354
Mfg#:
BM-0701
Special Order: No Guaranteed ETA
$550.00 USD
This product is lifetime replacement eligible Lifetime Replacement

S54 Power Pack - stage 1

ES#3618647 - s54ppKT3 - S54 Power Pack - stage 1 - Improve your cars performance in a afternoon with this effective and simple upgrade kit! - Assembled By ECS - BMW

Improve your cars performance in a afternoon with this effective and simple upgrade kit! 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#:
3618647
Mfg#:
S54PPKT3
Ships on Aug 11, 2026
ON SALE! SAVE 24%
$661.99

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

$500.97 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

S55 4-Pin Crank Hub & Comprehensive Installation Kit

ES#5341089 - s55cchiKT - S55 4-Pin Crank Hub & Comprehensive Installation Kit - Features the Insane Performance S55 4-Pin One-Piece Crank Hub kit plus all of the installation components needed such as gaskets, hardware, and timing parts that should be replaced during installation. - Assembled By ECS - BMW

Features the Insane Performance S55 4-Pin One-Piece Crank Hub kit plus all of the installation components needed such as gaskets, hardware, and timing parts that should be replaced during installation. 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#:
5341089
Mfg#:
S55CCHIKT
Ships on Aug 14, 2026
Auto Notify
$2181.99

This product was last offered at the strikethrough price on
04-06-2026

$2177.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

S58 Performance Engine Intake Air Filters - Blue

Drop-in high flow replacement filters for your BMW affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FTP Motorsport - Corporate Logo
ES#:
4876295
Mfg#:
SG71467
Special Order: No Guaranteed ETA
13% off MSRP

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

$150.00

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

$130.00 USD
Free Shipping
on orders $49 and up

S55 Full Color Charge Pipe + Boost Pipe ( Yellow )

This kit is your ticket to reliable performance and head-turning aesthetics. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
FTP Motorsport - Corporate Logo
ES#:
4872182
Mfg#:
SG71350-Y
Special Order: No Guaranteed ETA
$570.00 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.

Let us help you find the parts that fit your BMW

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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