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 E46 Engine Parts & Accessories

Sort By
Filter By
Return to Top

Water Pump Gasket

ES#24449 - 11517831099 - Water Pump Gasket - Steel water pump gasket for your Z3 / M3 - Genuine BMW - BMW

Steel water pump gasket for your Z3 / M3 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24449
Mfg#:
11517831099
In Stock
14% off MSRP

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

$41.99

This product was last offered at the strikethrough price on
07-10-2026

$36.13 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VANOS Pressure Regulator

ES#23260 - 11367838080 - VANOS Pressure Regulator - Pressure limiting valve for the VANOS system. Includes filter. - Genuine BMW - BMW

Pressure limiting valve for the VANOS system. Includes filter. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
23260
Mfg#:
11367838080
Ships in 5 Business Days
$129.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mechanical A/C Belt Tensioner Assembly

ES#2534490 - 11281433571 - Mechanical A/C Belt Tensioner Assembly - Complete tensioner assembly with roller - URO - BMW

Complete tensioner assembly with roller 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 up to 09/2002

Brand:
URO - Corporate Logo
ES#:
2534490
Mfg#:
11281433571
Ships in 1 Business Day
$53.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DO88 Racing Auxiliary Oil Cooler - E46 M3

ES#4656909 - OC120E46 - DO88 Racing Auxiliary Oil Cooler - E46 M3 - Oil cooler for power steering or gearbox oil cooling. - DO88 - BMW

Oil cooler for power steering or gearbox oil cooling. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
DO88 - Corporate Logo
ES#:
4656909
Mfg#:
OC120E46
In Stock
$646.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

S54 VANOS Rebuild Kit & Exhaust Hub Upgrade

ES#5470165 - 11367832031KT4 - S54 VANOS Rebuild Kit & Exhaust Hub Upgrade - Upgrade your failure-prone VANOS system with durable Viton/Teflon seals & a high-strength exhaust hub! - Assembled By ECS - BMW

Upgrade your failure-prone VANOS system with durable Viton/Teflon seals & a high-strength exhaust hub! 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#:
5470165
Mfg#:
11367832031KT4
Ships on Nov 18, 2026
Auto Notify
$703.99

This product was last offered at the strikethrough price on
05-29-2026

$645.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Accessory Belt - Air Conditioner

ES#11063 - 11287830946 - E46 M3 Accessory Belt - Air Conditioner - 5pk-829 - Continental - BMW

5pk-829 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Continental - Corporate Logo
ES#:
11063
Mfg#:
11287830946
Ships in 1-2 days
$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Mass Sensor (MAF)

ES#34425 - 13627566984 - Air Mass Sensor (MAF) - Brand new unit - Genuine BMW - BMW

Brand new unit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
34425
Mfg#:
13627566984
In Stock
Limited Qty Sale
$696.99

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

$640.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#34424 - 13627566983 - Mass Air Flow Sensor (MAF) - Controls the air / fuel mixture of the engine - Genuine BMW - BMW

Controls the air / fuel mixture of the engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 09/2002

Brand:
Genuine BMW - Corporate Logo
ES#:
34424
Mfg#:
13627566983
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.

$670.99

This product was last offered at the strikethrough price on
07-10-2026

$640.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Intake Boot

ES#2534825 - 13541740073 - Intake Boot - Used between air mass sensor & throttle valve - URO - BMW

Used between air mass sensor & throttle valve 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!

Brand:
URO - Corporate Logo
ES#:
2534825
Mfg#:
13541740073
In Stock
$22.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Elbow

ES#25809 - 11617547582 - Hose Elbow - Prevent vacuum leaks in the emission system - Genuine BMW - BMW

Prevent vacuum leaks in the emission system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
25809
Mfg#:
11617547582
In Stock
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance 1000cc Fuel Injector Set - Set of 6

ES#2574525 - 17U0110006 - Performance 1000cc Fuel Injector Set - Set of 6 - Built using high-quality Bosch EV14 cores, known for their fast response times and exceptional atomization. - DeatschWerks - BMW Porsche

Built using high-quality Bosch EV14 cores, known for their fast response times and exceptional atomization. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Custom Applications - Will require additional tuning or modifications.

Brand:
DeatschWerks - Corporate Logo
ES#:
2574525
Mfg#:
17U0110006
Ships in 2 Business Days
$639.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

750cc Performance Fuel Injector Set - Set of 6

ES#2574524 - 17U0107506 - 750cc Performance Fuel Injector Set - Set of 6 - Provide a significant increase in fuel flow over stock units, making them an essential upgrade for forced induction setups or high-compression builds. - DeatschWerks - BMW Porsche

Provide a significant increase in fuel flow over stock units, making them an essential upgrade for forced induction setups or high-compression builds. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Custom Applications - Will require additional tuning or modifications.

Brand:
DeatschWerks - Corporate Logo
ES#:
2574524
Mfg#:
17U0107506
Ships in 2 Business Days
$639.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit - With Service Tools

ES#4352354 - 12131712219KT5 - Ignition Service Kit - With Service Tools - Restore your ignition system using high quality Bosch ignition coils and NGK spark plugs - Assembled By ECS - BMW

Restore your ignition system using high quality Bosch ignition coils and NGK spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Kit includes all necessary service tools

Brand:
Assembled By ECS - Corporate Logo
ES#:
4352354
Mfg#:
12131712219KT5
In Stock
ON SALE!
$319.47 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Water Pipe

ES#2828391 - 11537502000 - Aluminum Water Pipe - From water pump to expansion tank hose - featuring a lifetime warranty. No more cracked plastic pipe! - URO Premium - BMW
ECS Tuning recommends this product.

From water pump to expansion tank hose - featuring a lifetime warranty. No more cracked plastic pipe! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
URO Premium - Corporate Logo
ES#:
2828391
Mfg#:
11537502000
In Stock
$82.99

This product was last offered at the strikethrough price on
04-28-2026

$70.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

ES#2813640 - 12147539171 - Camshaft Position Sensor - Located on rear of the cylinder head, sensing the intake cam - Hamburg Tech - BMW

Located on rear of the cylinder head, sensing the intake cam affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Sensor for the intake camshaft

Brand:
Hamburg Tech - Corporate Logo
ES#:
2813640
Mfg#:
12147539171
In Stock
$90.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Intake Valve - Priced Each

ES#2611349 - 11341739822 - Intake Valve - Priced Each - Replacement intake valve - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
2611349
Mfg#:
11341739822
Ships on Aug 11, 2026
4% off MSRP

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

$54.99

This product was last offered at the strikethrough price on
02-03-2026

$52.99 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