Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply
affirm financing terms & conditions

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
affirm financing terms & conditions
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

BMW M3 Engine Parts & Accessories

Sort By
Filter By
Return to Top

Performance Oil Separator Kit

ES#5443594 - 059015LA02KT - Performance Oil Separator Kit - Includes a new separator, Turner Motorsport silicone breather hose, return hose, and hardware. - Assembled By ECS - BMW

Includes a new separator, Turner Motorsport silicone breather hose, return hose, and hardware. 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#:
5443594
Mfg#:
059015LA02KT
Ships on Sep 30, 2026
Auto Notify
ON SALE! SAVE 19%
$104.96

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

$84.77 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

1000cc Fuel Injector - Set of 8

8 Flow matched E85 compatible injectors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Fuel Injector Clinic - Corporate Logo
ES#:
4492987
Mfg#:
IS804-1000H
Ships in 2 Business Days
$762.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#2586765 - 11281437929KT2 - Accessory Belt Kit - Utilizes all genuine BMW components - Genuine BMW - BMW

Utilizes all genuine BMW components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2586765
Mfg#:
11281437929KT2
Back Ordered
$759.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank

ES#2775458 - 17132284601 - Expansion Tank - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
2775458
Mfg#:
17132284601
Ships in 3 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.

$202.99

This product was last offered at the strikethrough price on
06-25-2026

$189.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EGT Sensor

ES#27307 - 11787831624 - EGT Sensor - Exhaust gas temperature sensor for the S54 engine - Genuine BMW - BMW

Exhaust gas temperature sensor for the S54 engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
27307
Mfg#:
11787831624
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.

$162.99

This product was last offered at the strikethrough price on
06-25-2026

$151.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - Level 2

ES#2777069 - 11517839062KT3 - Cooling System Refresh Kit - Level 2 - Service your drive belt while servicing your cooling system - Assembled By ECS - BMW

Service your drive belt while servicing your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date up to 04/2008

Brand:
Assembled By ECS - Corporate Logo
ES#:
2777069
Mfg#:
11517839062KT3
Back Ordered
Auto Notify
$795.99

This product was last offered at the strikethrough price on
02-27-2026

$757.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

WPC Performance Rod Bearing Replacement Kit

ES#2992679 - 11247835439KT2 - WPC Performance Rod Bearing Replacement Kit - Includes everything needed for a rod bearing service, featuring WPC treated rod bearings. - Assembled By ECS - BMW

Includes everything needed for a rod bearing service, featuring WPC treated rod bearings. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Stronger & smoother, with less friction!
For vehicles with production date from 02/2003

Brand:
Assembled By ECS - Corporate Logo
ES#:
2992679
Mfg#:
11247835439KT2
In Stock
ON SALE!
$823.99

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

$756.53 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

E46 M3 Engine Wiring Harness

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 6 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
06-25-2026

$755.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VAC S65 Oil Diverter Valve

ES#4348577 - VAC-OTDV-S65 - VAC S65 Oil Diverter Valve - Put An End To Those High Track Day Oil Temperatures. - VAC Motorsports - BMW

Put An End To Those High Track Day Oil Temperatures. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
VAC Motorsports - Corporate Logo
ES#:
4348577
Mfg#:
VAC-OTDV-S65
In Stock
$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E30 M3 Thermostat

ES#24760 - 11531315537 - E30 M3 Thermostat - 80CEL - Genuine BMW - BMW

80CEL affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24760
Mfg#:
11531315537
Back Ordered
69% off MSRP

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

$619.15

This product was last offered at the strikethrough price on
06-25-2026

$188.91 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Torx Bolt - Priced Each

ES#16077 - 07129904819 - Torx Bolt - Priced Each - Used to secure the fuel rails - Genuine BMW - BMW MINI

Used to secure the fuel rails affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
16077
Mfg#:
07129904819
In Stock
$2.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Performance Main Bearing Set - .25 Oversize

ES#4736408 - 7M1532H-.25 - High Performance Main Bearing Set - .25 Oversize - .25 Oversize Bearings - ACL - BMW

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

Brand:
ACL - Corporate Logo
ES#:
4736408
Mfg#:
7M1532H-.25
In Stock at Vendor
$376.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Timing Chain Guide Rail

ES#2083355 - 11311722651 - Upper Timing Chain Guide Rail - Replacement guide rail for required maintenance - Febi - BMW

Replacement guide rail for required maintenance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 03/1995

Brand:
Febi - Corporate Logo
ES#:
2083355
Mfg#:
11311722651
In Stock at Vendor
$29.99

This product was last offered at the strikethrough price on
05-07-2026

$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Feed Line

ES#2611412 - 16127318355 - Fuel Feed Line - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
2611412
Mfg#:
16127318355
Ships in 3 Business 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.

$100.99

This product was last offered at the strikethrough price on
06-25-2026

$93.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Genuine BMW Oil Change Kit - with ECS Magnetic Oil Drain Plug

ES#3046075 - 83212365945KT4 - Genuine BMW Oil Change Kit - with ECS Magnetic Oil Drain Plug - Everything for an oil service with BMW Twin Power Turbo oil and ECS Magnetic Oil Drain Plug! - Assembled By ECS - BMW

Everything for an oil service with BMW Twin Power Turbo oil and ECS Magnetic Oil Drain Plug! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with a production date up to 09/2014

Brand:
Assembled By ECS - Corporate Logo
ES#:
3046075
Mfg#:
83212365945KT4
In Stock
ON SALE!
$150.27 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

DO88 Racing Oil Cooler - E46 M3

ES#4656912 - OC150 - DO88 Racing Oil Cooler - E46 M3 - The perfect oil cooler for the track and on the street! - DO88 - BMW

The perfect oil cooler for the track and on the street! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
DO88 - Corporate Logo
ES#:
4656912
Mfg#:
OC150
In Stock at Vendor
$749.99 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.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings