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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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Cometic "MLS" Multi Layer Steel Head Gasket - .070 Inch

ES#3177687 - C4328-070 - Cometic "MLS" Multi Layer Steel Head Gasket - .070 Inch - Improve your head gasket strength and reliability for performance NA and forced induction applications! - Cometic - BMW

Improve your head gasket strength and reliability for performance NA and forced induction applications! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Cometic - Corporate Logo
ES#:
3177687
Mfg#:
C4328-070
Ships in 9 Business Days
Auto Notify
$245.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Timing Chain Tensioner

ES#4039816 - 11311738700 - Upper Timing Chain Tensioner - Guide used to tension the timing chain - Bavarian Autosport - BMW

Guide used to tension the timing chain affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4039816
Mfg#:
11311738700
In Stock
ON SALE! SAVE 20%
$49.99

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

$39.99 USD
Free Shipping
on orders $49 and up

Radiator Hose - Lower

ES#4304690 - 11531436408 - Radiator Hose - Lower - A common source of cooling system failure - Bremmen Parts - BMW
ECS Tuning recommends this product.

A common source of cooling system failure affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4304690
Mfg#:
11531436408
In Stock
ON SALE! SAVE 16%
$36.99

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

$31.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rotrex Traction Fluid - One Liter

ES#3438857 - 12-032 - Rotrex Traction Fluid - One Liter - Replacement traction fluid for your supercharger - Active Autowerke - BMW

Replacement traction fluid for your supercharger affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Active Autowerke - Corporate Logo
ES#:
3438857
Mfg#:
12-032
Ships in 3 Business Days
$240.00 USD
Free Shipping
on orders $49 and up

E46 Methanol Injection System

ES#3438868 - 14-003 - E46 Methanol Injection System - Reduce heat soak - Active Autowerke - BMW

Reduce heat soak affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Active Autowerke - Corporate Logo
ES#:
3438868
Mfg#:
14-003
Ships in 3 Business Days
$2137.00 USD
Free Shipping

Hex Bolt

ES#41854 - 22326760945 - Hex Bolt - M8x22-8.8-ZNS3 - Genuine BMW - BMW MINI

M8x22-8.8-ZNS3 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
41854
Mfg#:
22326760945
In Stock
$7.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Connecting Rod Bolt

ES#2641302 - 11241739729 - Connecting Rod Bolt - The stretch bolt design means these need replaced once removed - Genuine BMW - BMW

The stretch bolt design means these need replaced once removed affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2641302
Mfg#:
11241739729
In Stock
$7.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount - Priced Each

ES#41849 - 22322282340 - Transmission Mount - Priced Each - Secure the rear of the transmission to the crossmember - Genuine BMW - BMW

Secure the rear of the transmission to the crossmember affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
41849
Mfg#:
22322282340
Ships in 3 Business Days
8% off MSRP

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

$92.25

This product was last offered at the strikethrough price on
07-01-2026

$84.87 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Sensor O-Ring

ES#3478331 - 12611744292 - Oil Level Sensor O-Ring - Used to seal sensor to the oil pan - Elring - BMW

Used to seal sensor to the oil pan 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#:
3478331
Mfg#:
12611744292
In Stock at Vendor
$11.71 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VANOS Oil Feed Line

ES#23138 - 11361705532 - VANOS Oil Feed Line - Supplies oil to the VANOS cam unit - Genuine BMW - BMW

Supplies oil to the VANOS cam unit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
23138
Mfg#:
11361705532
Ships in 3 Business Days
$81.12 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CP-Carrillo Connecting Rod Set M5X Pro-Xtreme

ES#4759044 - CAR-CRS-S52-XT - CP-Carrillo Connecting Rod Set M5X Pro-Xtreme - Upgrade Your M5x Engine With CP-Carrillo Rods Today! 135mm Rods - 5150 Autosport - BMW

Upgrade Your M5x Engine With CP-Carrillo Rods Today! 135mm Rods affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
5150 Autosport - Corporate Logo
ES#:
4759044
Mfg#:
CAR-CRS-S52-XT
Ships in 3 Business Days
$2099.99 USD
Free Shipping
on orders $49 and up

Idle Control Valve

ES#33119 - 13411744713 - Idle Control Valve - An integral part of the air intake system - Genuine BMW - BMW

An integral part of the air intake system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
33119
Mfg#:
13411744713
Ships in 1-2 days
7% off MSRP

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

$558.99

This product was last offered at the strikethrough price on
07-01-2026

$521.99 USD
Free Shipping
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

Intake Air Adjustment Unit/DISA Valve

ES#25488 - 11611440049 - Intake Air Adjustment Unit/DISA Valve - Located on the side of the intake manifold - Genuine BMW - BMW

Located on the side of the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
25488
Mfg#:
11611440049
Ships in 1-2 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.

$422.26

This product was last offered at the strikethrough price on
07-01-2026

$409.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 Radiator Hose - Upper

ES#2803457 - 17127510952 - E46 Radiator Hose - Upper - A common source of cooling system failure - Rein - BMW
ECS Tuning recommends this product.

A common source of cooling system failure 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:
Rein - Corporate Logo
ES#:
2803457
Mfg#:
17127510952
In Stock
ON SALE!
$25.99

This product was last offered at the strikethrough price on
02-09-2026

$23.70 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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