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BMW E46 323i M52 2.5L

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BMW E46 323i M52 2.5L Engine Parts & Accessories

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Performance Kevlar Reinforced Accessory Belt - A/C - M52TU M54

ES#4661018 - 5PK863 - Performance Kevlar Reinforced Accessory Belt - A/C - M52TU M54 - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - BMW
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4661018
Mfg#:
5PK863
In Stock
$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

"Cold Climate" Crankcase Pressure Regulator Valve

ES#25780 - 11617533400 - "Cold Climate" Crankcase Pressure Regulator Valve - Commonly referred to as the "oil separator" or PCV - Genuine BMW - BMW

Commonly referred to as the "oil separator" or PCV affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Superior performance for both warm and cold climates

Brand:
Genuine BMW - Corporate Logo
ES#:
25780
Mfg#:
11617533400
In Stock at Vendor
$157.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Engine Mount Bracket - Right

ES#41581 - 22111094694 - Engine Mount Bracket - Right - Replace your cracked motor mount bracket today! - Genuine BMW - BMW

Replace your cracked motor mount bracket today! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
41581
Mfg#:
22111094694
In Stock
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Kit

ES#2592864 - 11311432176KT3 - Timing Chain Kit - Everything you need to get the job done, including coolant, oil and filter - Assembled By ECS - BMW

Everything you need to get the job done, including coolant, oil and 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#:
2592864
Mfg#:
11311432176KT3
Ships in 1 Business Day
ON SALE! SAVE 12%
$416.99

This product was last offered at the strikethrough price on
05-28-2026

$367.02 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Adapter Lead

ES#30840 - 12514592703 - Adapter Lead - Used to repair crankshaft position sensors - Genuine BMW - BMW

Used to repair crankshaft position sensors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
30840
Mfg#:
12514592703
Ships in 4 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.

$113.99

This product was last offered at the strikethrough price on
06-14-2026

$109.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Main Crankshaft Seal

ES#19418 - 11142249532 - Front Main Crankshaft Seal - Replace your leaking crankshaft seal - Genuine BMW - BMW

Replace your leaking crankshaft seal affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
19418
Mfg#:
11142249532
Ships in 3 Business Days
$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Cap

ES#3023872 - 17111742231 - Expansion Tank Cap - Replace when performing cooling service. - Mahle-Behr - BMW

Replace when performing cooling service. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
3023872
Mfg#:
17111742231
In Stock
$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Hose - 1 Meter

ES#26414 - 11657803732 - Vacuum Hose - 1 Meter - Seal up your vacuum leak - Genuine BMW - BMW

Seal up your vacuum leak affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
26414
Mfg#:
11657803732
In Stock
$72.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 2

ES#263517 - ECSE461711-2 - ECS Cooling System Refresh Kit - Level 2 - A more advanced kit that includes belt service components - featuring OEM contents - Genuine BMW - BMW

A more advanced kit that includes belt service components - featuring OEM contents affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 09/2002

Brand:
Genuine BMW - Corporate Logo
ES#:
263517
Mfg#:
ECSE461711-2
Ships in 4 Business Days
$1091.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 3

ES#3478430 - 17119071519gKT - ECS Cooling System Refresh Kit - Level 3 - The ultimate cooling refresh kit - with aftermarket components, featuring an ECS Aluminum Pulley and a Stewart 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 Stewart water pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Manual transmission vehicles produced up 10/1998 -

Brand:
Assembled By ECS - Corporate Logo
ES#:
3478430
Mfg#:
17119071519GKT
Back Ordered
Auto Notify
ON SALE!
$1086.64 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

ECS Cooling System Refresh Kit - Level 2

ES#263522 - ECSE461711-2 - ECS Cooling System Refresh Kit - Level 2 - A more advanced cooling refresh kit - with OEM components - Genuine BMW - BMW

A more advanced cooling refresh kit - with OEM components 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#:
263522
Mfg#:
ECSE461711-2
Ships in 4 Business Days
$1081.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Oil Drain Plug

ES#251918 - 11137535106 - Oil Drain Plug - Includes crush washer - Assembled By ECS - BMW

Includes crush washer 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#:
251918
Mfg#:
11137535106
In Stock
ON SALE! SAVE 29%
$8.99

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

$6.35 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Leak Detection Pump

ES#4668844 - 16136756440 - Leak Detection Pump - Located under the vehicle, near the transmission bellhousing or in the rear. - URO - BMW

Located under the vehicle, near the transmission bellhousing or in the rear. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4668844
Mfg#:
16136756440
In Stock
$153.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor

ES#240369 - 12147518628 - Camshaft Position Sensor - Exhaust side - Febi - BMW

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

Brand:
Febi - Corporate Logo
ES#:
240369
Mfg#:
12147518628
Ships on Sep 10, 2026
$48.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Pulley With Vibration Damper

ES#2873649 - 11231438995 - Crankshaft Pulley With Vibration Damper - Reduces vibrations and connects accessories - Febi - BMW

Reduces vibrations and connects accessories affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2873649
Mfg#:
11231438995
In Stock at Vendor
$178.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pedal 2 Metal Throttle Enhancer - BMW & MINI

ES#4940052 - 77-20007 - Pedal 2 Metal Throttle Enhancer - BMW & MINI - Remove the throttle lag and get more instant response. - AFE - BMW MINI

Remove the throttle lag and get more instant response. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AFE - Corporate Logo
ES#:
4940052
Mfg#:
77-20007
In Stock at Vendor
20% off MSRP

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

$335.00

This product was last offered at the strikethrough price on
12-29-2025

$268.00 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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