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BMW E46 Engine Parts & Accessories

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Thermostat Assembly With Aluminum Housing

ES#4877251 - 11537509227PRM - Thermostat Assembly With Aluminum Housing - Aluminum Housing vs OEM Plastic - includes Thermostat & Gasket - URO Premium - BMW

Aluminum Housing vs OEM Plastic - includes Thermostat & Gasket 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO Premium - Corporate Logo
ES#:
4877251
Mfg#:
11537509227PRM
In Stock
$89.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Triple-Pass Aluminum Radiator

ES#4830823 - 004268LA01 - E46 M3 Triple-Pass Aluminum Radiator - Track-tested and street-readythe ULTIMATE cooling system upgrade for your E46 M3! - Turner Motorsport - BMW

Track-tested and street-ready—the ULTIMATE cooling system upgrade for your E46 M3! 10X Entries Into Our F80 M3 Sweepstakes
10X Entries For Our Spin To Win Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4830823
Mfg#:
004268LA01
In Stock
$604.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heavy Duty Aluminum Coolant Bleeder Screw

ES#2739096 - 003530ECS01A - Heavy Duty Aluminum Coolant Bleeder Screw - Offering superior fatigue resistance over conventional plastic screws. Say goodbye to snapped and mangled bleeder screw heads! - ECS - BMW MINI

Offering superior fatigue resistance over conventional plastic screws. Say goodbye to snapped and mangled bleeder screw heads! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2739096
Mfg#:
003530ECS01A
In Stock
ON SALE! SAVE 25%
$35.99

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

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Relay - Salmon Red

ES#31912 - 12631742690 - Relay - Salmon Red - Used in many places on late model BMWs - Genuine BMW - BMW MINI

Used in many places on late model BMWs

Brand:
Genuine BMW - Corporate Logo
ES#:
31912
Mfg#:
12631742690
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.

$24.65

This product was last offered at the strikethrough price on
09-27-2026

$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Tensioner

ES#3522205 - 11317838675 - Timing Chain Tensioner - Located on the lower rear timing chain guide rail - Ina - BMW

Located on the lower rear timing chain guide rail We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3522205
Mfg#:
11317838675
In Stock
$139.99

This product was last offered at the strikethrough price on
05-06-2026

$92.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Platinum Spark Plugs - Set Of Six

ES#240578 - FGR7DQP-6 - Platinum Spark Plugs - Set Of Six - Keep your motor running smoothly with a set of new spark plugs - Bosch - BMW

Keep your motor running smoothly with a set of new spark plugs We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
240578
Mfg#:
FGR7DQP-6
In Stock
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Crankshaft Cover - With Seal

ES#19237 - 11141438274 - Rear Crankshaft Cover - With Seal - Includes seal and mounting hardware - Genuine BMW - BMW

Includes seal and mounting hardware

Brand:
Genuine BMW - Corporate Logo
ES#:
19237
Mfg#:
11141438274
In Stock
4% off MSRP

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

$167.00

This product was last offered at the strikethrough price on
09-27-2026

$160.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Kit - Level 2

ES#2603042 - E46M54OSW3KT - Oil Separator Kit - Level 2 - A truly complete kit for oil separator system maintenance - Assembled By ECS - BMW

A truly complete kit for oil separator system maintenance 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2603042
Mfg#:
E46M54OSW3KT
In Stock
ON SALE! SAVE 23%
$173.99

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

$133.16 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

S54 Silicone Throttle Body Boot Set - With Clamps

ES#4135389 - 003313tms03KT - S54 Silicone Throttle Body Boot Set - With Clamps - Highly durable under street and race conditions, including forced induction applications. Includes euro-style screw clamps. - Turner Motorsport - BMW

Highly durable under street and race conditions, including forced induction applications. Includes euro-style screw clamps. 10X Entries Into Our F80 M3 Sweepstakes
10X Entries For Our Spin To Win Sweepstakes!
For vehicles equipped with a CSL airbox or vehicles with production date up to 10/2004 only

Brand:
Turner Motorsport - Corporate Logo
ES#:
4135389
Mfg#:
003313TMS03KT
In Stock
ON SALE! SAVE 25%
$170.99

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

$128.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CP-Carrillo Connecting Rod Set - S54 Pro-Xtreme

ES#4759052 - CAR-CRS-S54-XT - CP-Carrillo Connecting Rod Set - S54 Pro-Xtreme - Upgrade to CP-Carrillo Connecting Rods in Your S54-Powered BMW - 5150 Autosport - BMW

Upgrade to CP-Carrillo Connecting Rods in Your S54-Powered BMW

Brand:
5150 Autosport - Corporate Logo
ES#:
4759052
Mfg#:
CAR-CRS-S54-XT
Back Ordered
$2299.99 USD
Free Shipping
on orders $49 and up

Idler Pulley

ES#259465 - 11287841228 - Idler Pulley - Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems - Ina - BMW
ECS Tuning recommends this product.

Runs on water pump and alternator belt, used on both mechanical and hydraulic tensioner systems We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
259465
Mfg#:
11287841228
In Stock
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#4818558 - 13627567451 - Mass Air Flow Sensor (MAF) - Controls the air / fuel mixture of the engine. - Bremmen Parts - BMW

Controls the air / fuel mixture of the engine. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818558
Mfg#:
13627567451
In Stock
ON SALE! SAVE 20%
$85.99

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

$68.54 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pan Gasket

ES#11818 - 11131437237 - Oil Pan Gasket - Metal / Rubber gasket used to stop oil leaks - Victor Reinz - BMW
ECS Tuning recommends this product.

Metal / Rubber gasket used to stop oil leaks

Brand:
Victor Reinz - Corporate Logo
ES#:
11818
Mfg#:
11131437237
In Stock
$27.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner E46 Silicone Intake Boot - E46 M54 2.5 - Blue

ES#3618458 - 001687TMS01-01 - Turner E46 Silicone Intake Boot - E46 M54 2.5 - Blue - Improved durability and air flow! - Turner Motorsport - BMW

Improved durability and air flow! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
3618458
Mfg#:
001687TMS01-01
In Stock
ON SALE! SAVE 25%
$171.99

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

$128.99 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

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