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BMW E46 325Ci M54 2.5L

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BMW E46 325Ci M54 2.5L Engine Parts & Accessories

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M52TU/M54 Heavy-Duty Expansion Tank With Mechanical Thermostat Conversion Kit & Silicone Radiator Hoses

ES#4876697 - 008363LA02EB1KT - M52TU/M54 Heavy-Duty Expansion Tank With Mechanical Thermostat Conversion Kit & Silicone Radiator Hoses - The ULTIMATE cooling upgrade for your BMW! Experience increased cooling system capability and durability. - Enthusiast Bundles - BMW

The ULTIMATE cooling upgrade for your BMW! Experience increased cooling system capability and durability. Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876697
Mfg#:
008363LA02EB1KT
Ships on Jul 21, 2026
Auto Notify
ON SALE! SAVE 24%
$1055.95

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

$799.04 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Valve Cover gasket Kit

ES#2792769 - 11120030496KT - Ultimate Valve Cover gasket Kit - Includes valve cover gasket and sealing washers - Elring - BMW

Includes valve cover gasket and sealing washers 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 09/2002

Brand:
Elring - Corporate Logo
ES#:
2792769
Mfg#:
11120030496KT
In Stock
$61.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intensity Carbon Lithium-ION Battery - i48CX - 10.5lbs

ES#3617648 - i48CX - Intensity Carbon Lithium-ION Battery - i48CX - 10.5lbs - Replace your stock, heavy battery with a direct replacement, lightweight performance Lithium battery that weighs in at only 10.5lbs! - Braille - BMW

Replace your stock, heavy battery with a direct replacement, lightweight performance Lithium battery that weighs in at only 10.5lbs! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi

Brand:
Braille - Corporate Logo
ES#:
3617648
Mfg#:
I48CX
Ships in 4 Business Days
$1164.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#3691255 - 13621432356 - Mass Air Flow Sensor (MAF) - Complete with housing. - Hella - BMW

Complete with housing. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with a production date from 09/1998 up to 03/2003

Brand:
Hella - Corporate Logo
ES#:
3691255
Mfg#:
13621432356
In Stock
$104.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake Manifold Gasket Set

ES#2608158 - 11611436631 - Intake Manifold Gasket Set - Contains both gaskets needed - Elring - BMW
ECS Tuning recommends this product.

Contains both gaskets needed 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:
Elring - Corporate Logo
ES#:
2608158
Mfg#:
11611436631
In Stock
$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Oil Filter Cap

ES#2738405 - 002605ECS01A - Billet Aluminum Oil Filter Cap - Aluminum upgrade for OE plastic housing. No more damaged threads or rounded heads! - ECS - BMW

Aluminum upgrade for OE plastic housing. No more damaged threads or rounded heads! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Features an OE 36mm hex head as well as a 17mm hex - making an oil service a one-tool job!

Brand:
ECS - Corporate Logo
ES#:
2738405
Mfg#:
002605ECS01A
In Stock
ON SALE!
$154.99

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

$150.34 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pan Gasket - Elring

ES#3673144 - 424.51 - Oil Pan Gasket - Elring - A common cause of lower engine oil leaks. - Elring - BMW

A common cause of lower engine oil leaks. 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:
Elring - Corporate Logo
ES#:
3673144
Mfg#:
424.51
In Stock
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Power Steering Pulley

ES#2795558 - 003042ECS01 - Aluminum Power Steering Pulley - Finally, a durable power steering pulley that won't break! - ECS - BMW

Finally, a durable power steering pulley that won't break! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2795558
Mfg#:
003042ECS01
In Stock
ON SALE! SAVE 15%
$86.99

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

$73.94 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Fan Clutch

ES#2534570 - 11527505302 - Radiator Fan Clutch - Common source of engine overheating - URO - BMW

Common source of engine overheating 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#:
2534570
Mfg#:
11527505302
In Stock
$72.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Radiator

ES#3545366 - 3708 - Radiator - Standard replacement radiator - CSF - BMW

Standard replacement radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with Manual transmission only

Brand:
CSF - Corporate Logo
ES#:
3545366
Mfg#:
3708
In Stock
$110.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Puller Fan Assembly

ES#4818569 - 17117561757 - Auxiliary Puller Fan Assembly - Cooling fan mounted behind the radiator - Bremmen Parts - BMW

Cooling fan mounted behind the radiator affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4818569
Mfg#:
17117561757
In Stock
ON SALE! SAVE 15%
$194.99

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

$165.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

WPC Treated Rod Bearing Set

ES#3221125 - 11241284849WPC - WPC Treated Rod Bearing Set - Stronger & smoother, with less friction for your BMW! - ECS - BMW

Stronger & smoother, with less friction for your BMW! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3221125
Mfg#:
11241284849WPC
In Stock
ON SALE! SAVE 25%
$188.99

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

$141.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Liqui Moly Special Tec Oil Change Kit / Inspection I

ES#3424127 - m50OCIlm2KT - Liqui Moly Special Tec Oil Change Kit / Inspection I - Everything you need for a comprehensive oil service, including Liqui Moly oil and Hengst filter - Assembled By ECS - BMW

Everything you need for a comprehensive oil service, including Liqui Moly oil and Hengst filter 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#:
3424127
Mfg#:
M50OCILM2KT
In Stock
ON SALE!
$99.65 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

264� / 248� High Performance M54 Camshaft Set

ES#4940319 - EVCVSB02 - 264 / 248 High Performance M54 Camshaft Set - Help your engine breathe easier with a set of performance cams from SPA Performance - SPA Performance - BMW

Help your engine breathe easier with a set of performance cams from SPA Performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SPA Performance - Corporate Logo
ES#:
4940319
Mfg#:
EVCVSB02
Back Ordered
Auto Notify
$1049.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Aluminum Vacuum Hose F-Connector

ES#3046177 - 012178ECS01 - Aluminum Vacuum Hose F-Connector - No more brittle plastic vacuum connectors - end vacuum leaks once and for all! - ECS - BMW

No more brittle plastic vacuum connectors - end vacuum leaks once and for all! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3046177
Mfg#:
012178ECS01
In Stock
ON SALE! SAVE 25%
$54.99

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

$41.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Lifter - Priced Each

ES#205062 - 11321748884 - Hydraulic Lifter - Priced Each - Also commonly called cam follower - Ina - BMW
ECS Tuning recommends this product.

Also commonly called cam follower affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
205062
Mfg#:
11321748884
In Stock
$19.99 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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