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BMW E46 Engine Parts & Accessories

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E46 M3 Coolant Expansion Tank

ES#38023 - 17112283344 - E46 M3 Coolant Expansion Tank - Plastic expansion tank, including sealing cap - Genuine BMW - BMW

Plastic expansion tank, including sealing cap

Brand:
Genuine BMW - Corporate Logo
ES#:
38023
Mfg#:
17112283344
Ships Today
7% off MSRP

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

$215.23

This product was last offered at the strikethrough price on
09-28-2026

$199.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover Sealing Washer - priced each

ES#2710098 - 11121437395 - Valve Cover Sealing Washer - priced each - Rubber sealing washer underneath valve cover securing nut - URO - BMW

Rubber sealing washer underneath valve cover securing nut 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
15 per valve cover

Brand:
URO - Corporate Logo
ES#:
2710098
Mfg#:
11121437395
In Stock
$1.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Kit

ES#10313 - 11427512300 - Oil Filter Kit - Includes filter, O-ring, and copper washer - Hengst - BMW
ECS Tuning recommends this product.

Includes filter, O-ring, and copper washer 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
10313
Mfg#:
11427512300
In Stock
$10.99 USD
Free Shipping
on orders $49 and up

Valve Cover Replacement Kit

ES#3136976 - 11127512839KT - Valve Cover Replacement Kit - Includes valve cover, valve cover gaskets, and nut gaskets - Assembled By ECS - BMW

Includes valve cover, valve cover gaskets, and nut gaskets 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with production date from 09/2002

Brand:
Assembled By ECS - Corporate Logo
ES#:
3136976
Mfg#:
11127512839KT
In Stock
ON SALE! SAVE 20%
$278.99

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

$223.87 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

WPC-Treated Race Series Rod Bearing Set - M20/M50/M52/M54/S50/S52

ES#4845637 - M5X-WPC-RB - WPC-Treated Race Series Rod Bearing Set - M20/M50/M52/M54/S50/S52 - The strongest and smoothest bearings for your BMW, featuring heavy-duty ACL "Duraglide" bearing shells treated by WPC for reduced friction and enhanced durability. - Turner Motorsport - BMW

The strongest and smoothest bearings for your BMW, featuring heavy-duty ACL "Duraglide" bearing shells treated by WPC for reduced friction and enhanced durability. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
4845637
Mfg#:
M5X-WPC-RB
In Stock
ON SALE! SAVE 25%
$475.99

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

$356.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat With Housing

ES#25078 - 11537509227 - Thermostat With Housing - A common item to crack causing leaks - Genuine BMW - BMW

A common item to crack causing leaks

Brand:
Genuine BMW - Corporate Logo
ES#:
25078
Mfg#:
11537509227
Ships in 1-3 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.

$174.45

This product was last offered at the strikethrough price on
09-28-2026

$169.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Schrick

ES#3085567 - TMS201497 - Schrick - Schrick - BMW

Brand:
Schrick - Corporate Logo
ES#:
3085567
Mfg#:
TMS201497
Ships on Dec 18, 2026
Starting at $3551.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Cooling System Refresh Kit - Level 3

ES#4908058 - 008682LA02-RF3KT - Performance Cooling System Refresh Kit - Level 3 - An all-inclusive service and upgrade kit, featuring high-performance components for increased cooling capacity! - Assembled By ECS - BMW

An all-inclusive service and upgrade kit, featuring high-performance components for increased cooling capacity! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4908058
Mfg#:
008682LA02-RF3KT
Ships on Dec 18, 2026
ON SALE!
$1824.08

This product was last offered at the strikethrough price on
07-16-2026

$1774.58 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

CSL Intake snorkel

ES#25903 - 11617833497 - CSL Intake snorkel - Front section of the CSL intake - Genuine European BMW - BMW

Front section of the CSL intake

Brand:
Genuine European BMW - Corporate Logo
ES#:
25903
Mfg#:
11617833497
Special Order: No Guaranteed ETA
$3529.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector - Priced Each

ES#33699 - 13537546244 - Fuel Injector - Priced Each - Factory replacement - Genuine BMW - BMW

Factory replacement

Brand:
Genuine BMW - Corporate Logo
ES#:
33699
Mfg#:
13537546244
Ships in 1 day
6% off MSRP

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

$264.99

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

$249.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Engine Mount - Priced Each

ES#2748915 - 11812283798 - Engine Mount - Priced Each - Keep your engine securely mounted - Lemforder - BMW
ECS Tuning recommends this product.

Keep your engine securely mounted We Price Match - Give Us A Call or Chat!

Brand:
Lemforder - Corporate Logo
ES#:
2748915
Mfg#:
11812283798
In Stock
$99.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 323/328 Valved Cat-Back Exhaust

ES#5395764 - 039116LA01 - E46 323/328 Valved Cat-Back Exhaust - Turn up the sound or keep it stealth. This lightweight E46 performance exhaust lets you control the tone instantly with its valved muffler and one-click controller. - Turner Motorsport - BMW

Turn up the sound or keep it stealth. This lightweight E46 performance exhaust lets you control the tone instantly with its valved muffler and one-click controller. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
5395764
Mfg#:
039116LA01
Ships in 5 Business Days
ON SALE!
Starting at $874.32 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 3

ES#2228846 - 17119071519KT2 - ECS Cooling System Refresh Kit - Level 3 - The ultimate cooling refresh kit - with aftermarket components, featuring an ECS Aluminum Pulley and a GEBA water pump - Assembled By ECS - BMW

The <font color='red'> ultimate</font> cooling refresh kit - with aftermarket components, featuring an ECS Aluminum Pulley and a GEBA water pump 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with a production date from 09/2002

Brand:
Assembled By ECS - Corporate Logo
ES#:
2228846
Mfg#:
17119071519KT2
Ships in 4 Business Days
ON SALE! SAVE 11%
$951.99

This product was last offered at the strikethrough price on
08-15-2026

$851.22 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Water Pipe

ES#4069274 - 11537502525 - Water Pipe - Connects return hose to engine block - Rein - BMW

Connects return hose to engine block 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
4069274
Mfg#:
11537502525
In Stock
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Inlet Pipe

ES#4304643 - 11531705210 - Heater Inlet Pipe - Runs from the front left side of the engine to the heater inlet - Bavarian Autosport - BMW
ECS Tuning recommends this product.

Runs from the front left side of the engine to the heater inlet 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304643
Mfg#:
11531705210
In Stock
ON SALE! SAVE 20%
$40.99

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

$32.79 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

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

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