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BMW E46 323Ci M52 2.5L

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BMW E46 323Ci M52 2.5L Engine Parts & Accessories

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BMW S54 Swap High-Performance Radiator - E36/E46

ES#4668276 - 7211 - BMW S54 Swap High-Performance Radiator - E36/E46 - Cooling for your S54 Swap! - CSF - BMW

Cooling for your S54 Swap! 2X Entries Into Our F80 M3 Sweepstakes
For Vehicles with an S54 Engine Swap CARB certified for sale in all 50 states

Brand:
CSF - Corporate Logo
ES#:
4668276
Mfg#:
7211
EO#:
D-802-19
In Stock
$599.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Idle Control Valve Grommet

ES#2603031 - 11611437453 - Idle Control Valve Grommet - Rubber grommet that helps hold the idle control valve - Elring - BMW

Rubber grommet that helps hold the idle control valve 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
2603031
Mfg#:
11611437453
In Stock
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake Manifold Gasket Set

ES#25460 - 11611436631 - Intake Manifold Gasket Set - Contains both gaskets needed - Genuine BMW - BMW

Contains both gaskets needed

Brand:
Genuine BMW - Corporate Logo
ES#:
25460
Mfg#:
11611436631
In Stock
$65.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

New Water Pump - With O-Ring

ES#259608 - 11517527910 - New Water Pump - With O-Ring - Featuring a metal impeller - Hepu - BMW

Featuring a metal impeller

Brand:
Hepu - Corporate Logo
ES#:
259608
Mfg#:
11517527910
In Stock
$68.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Housing Gasket

ES#23900 - 11421719855 - Oil Filter Housing Gasket - Seals housing to the engine block - Genuine BMW - BMW

Seals housing to the engine block

Brand:
Genuine BMW - Corporate Logo
ES#:
23900
Mfg#:
11421719855
In Stock
$10.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat With Housing

ES#259571 - 11537509227 - Thermostat With Housing - A common item to crack causing leaks - Mahle-Behr - BMW

A common item to crack causing leaks

Brand:
Mahle-Behr - Corporate Logo
ES#:
259571
Mfg#:
11537509227
Ships in 1 Business Day
$104.39

This product was last offered at the strikethrough price on
08-14-2026

$104.28 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover replacement Kit

ES#3136973 - 11121432928KT - 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

Brand:
Assembled By ECS - Corporate Logo
ES#:
3136973
Mfg#:
11121432928KT
In Stock
ON SALE! SAVE 23%
$285.99

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

$219.63 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit - Level 2

ES#2795143 - 17117573781KT6 - Expansion Tank Replacement Kit - Level 2 - More advanced expansion tank replacement kit - Assembled By ECS - BMW

More advanced expansion tank replacement kit 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2795143
Mfg#:
17117573781KT6
In Stock
ON SALE! SAVE 25%
$164.99

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

$124.15 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Fuel Filter - H108WK

ES#2075173 - 13321740985 - Fuel Filter - H108WK - Recommended to replace every 60k miles - Hengst - BMW
ECS Tuning recommends this product.

Recommended to replace every 60k miles 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#:
2075173
Mfg#:
13321740985
In Stock
$16.99

This product was last offered at the strikethrough price on
06-18-2026

$16.49 USD
Free Shipping
on orders $49 and up

Complete oil filter housing gasket Replacement kit

ES#4305458 - 11421719855KT1 - Complete oil filter housing gasket Replacement kit - Includes everything for a oil filter housing gasket change and oil service - Assembled By ECS - BMW

Includes everything for a oil filter housing gasket change and oil service 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4305458
Mfg#:
11421719855KT1
Ships on Sep 16, 2026
Auto Notify
ON SALE!
$287.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Replacement Filter for Cold Air Intake - Priced Each

ES#3149054 - D403-0350 - Replacement Filter for Cold Air Intake - Priced Each - Replace your dirty, damaged, or lost filter - Dinan - BMW

Replace your dirty, damaged, or lost filter Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Dinan - Corporate Logo
ES#:
3149054
Mfg#:
D403-0350
In Stock
11% off MSRP

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

$71.95

This product was last offered at the strikethrough price on
07-29-2026

$63.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Hose

ES#4773000 - 64218376153 - Expansion Tank Hose - Expansion tank to heater core - Bremmen Parts - BMW

Expansion tank to heater core 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4773000
Mfg#:
64218376153
In Stock
ON SALE! SAVE 20%
$47.99

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

$38.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Bearing Bridge - Intake

ES#18370 - 11121740428 - Camshaft Bearing Bridge - Intake - Used to encase the camshaft in the cylinder head - Genuine BMW - BMW

Used to encase the camshaft in the cylinder head

Brand:
Genuine BMW - Corporate Logo
ES#:
18370
Mfg#:
11121740428
Ships in 10 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.

$456.99

This product was last offered at the strikethrough price on
08-27-2026

$430.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Brass Coolant Bleeder Screw - Priced Each

ES#4017796 - 17111712788PRM - Brass Coolant Bleeder Screw - Priced Each - Comes with O-Ring - URO Premium - BMW MINI

Comes with O-Ring 2X Entries Into Our F80 M3 Sweepstakes

Brand:
URO Premium - Corporate Logo
ES#:
4017796
Mfg#:
17111712788PRM
In Stock
$5.35 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump - With O-Ring

ES#2714593 - 11517509985 - Water Pump - With O-Ring - Featuring advanced composite impeller - Genuine BMW - BMW

Featuring advanced composite impeller

Brand:
Genuine BMW - Corporate Logo
ES#:
2714593
Mfg#:
11517509985
In Stock
11% off MSRP

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

$192.54

This product was last offered at the strikethrough price on
08-27-2026

$172.26 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

6mm Single Groove Valve Keeper - Priced Each

ES#2598482 - KPR-6S-7 - 6mm Single Groove Valve Keeper - Priced Each - Two required per valve, necessary for use with certain supertech valves - Supertech - BMW

Two required per valve, necessary for use with certain supertech valves

Brand:
Supertech - Corporate Logo
ES#:
2598482
Mfg#:
KPR-6S-7
In Stock
$5.99

This product was last offered at the strikethrough price on
03-04-2026

$2.99 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.

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