Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply
affirm financing terms & conditions

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

BMW E46 323i M52 2.5L

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
affirm financing terms & conditions
garage-red
Your Vehicle BMW E46 323i M52 2.5L
Your Vehicle BMW E46 323i M52 2.5L
Change Clear

BMW E46 323i M52 2.5L Engine Parts & Accessories

Sort By
Filter By
Return to Top

Performance Aluminum Fan Shroud Kit - with NPT

ES#4140143 - MMFS-E46-99K - Performance Aluminum Fan Shroud Kit - with NPT - Aluminum fan shroud with 16" slim electric fan. Includes NPT controller! - Mishimoto - BMW

Aluminum fan shroud with 16" slim electric fan. Includes NPT controller! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
4140143
Mfg#:
MMFS-E46-99K
Ships in 3 Business Days
$420.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Pressure Switch - M12x1.5

ES#2534481 - 12611710509 - Oil Pressure Switch - M12x1.5 - Leaking or malfunctioning oil pressure switches can be disastrous - URO - BMW

Leaking or malfunctioning oil pressure switches can be disastrous 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#:
2534481
Mfg#:
12611710509
In Stock
$8.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Body Gasket

ES#3478306 - 11611716174 - Throttle Body Gasket - Gasket used to seal the throttle body onto the intake manifold - Elring - BMW

Gasket used to seal the throttle body onto the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Elring - Corporate Logo
ES#:
3478306
Mfg#:
11611716174
In Stock
$8.79

This product was last offered at the strikethrough price on
03-05-2026

$7.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Temperature Sensor

ES#2896230 - 13621433076 - Temperature Sensor - Monitors coolant / oil temperature - Vemo - BMW

Monitors coolant / oil temperature affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
2896230
Mfg#:
13621433076
In Stock at Vendor
$22.99

This product was last offered at the strikethrough price on
05-07-2026

$21.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Hose

ES#2622996 - 13541703865 - Cooling Hose - Runs from throttle body to the cylinder head - Rein - BMW

Runs from throttle body to the cylinder head affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2622996
Mfg#:
13541703865
In Stock at Vendor
$19.83

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

$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Mounting Screw

ES#166096 - 61217577620 - Mounting Screw - 190MM - Genuine BMW - BMW MINI

190MM affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
166096
Mfg#:
61217577620
In Stock
10% off MSRP

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

$9.69

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

$8.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Flat Washer - Pack Of 10

ES#2538117 - 11127550856kt - Flat Washer - Pack Of 10 - For use in conjunction with cylinder head bolts - Genuine BMW - BMW

For use in conjunction with cylinder head bolts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2538117
Mfg#:
11127550856KT
In Stock
$35.99

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

$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Housing Lid

ES#23934 - 11421744000 - Oil Filter Housing Lid - Includes sealing o-ring - Genuine BMW - BMW

Includes sealing o-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
23934
Mfg#:
11421744000
Ships in 3 Business Days
10% off MSRP

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

$50.99

This product was last offered at the strikethrough price on
06-12-2026

$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pump Shaft Upgrade Kit

ES#4772455 - 11amuopsk-m54KT - Oil Pump Shaft Upgrade Kit - Everything you need to bulletproof your oil pump shaft in one simple kit. - Assembled By ECS - BMW

Everything you need to bulletproof your oil pump shaft in one simple kit. 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#:
4772455
Mfg#:
11AMUOPSK-M54KT
Ships on Aug 14, 2026
Auto Notify
$427.99

This product was last offered at the strikethrough price on
05-15-2026

$409.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Upper Engine Timing Chain Tensioner

ES#4932396 - 11311738700 - Upper Engine Timing Chain Tensioner - Guide used to tension the timing chain - URO - BMW

Guide used to tension the timing chain affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
URO - Corporate Logo
ES#:
4932396
Mfg#:
11311738700
In Stock
$40.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Motor And Transmission Mount Kit

ES#2588216 - 11812228298PKT - Performance Motor And Transmission Mount Kit - Upgrade your mounts without compromising comfort. Includes hardware - Assembled By ECS - BMW

Upgrade your mounts without compromising comfort. Includes hardware affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Features upgraded engine mounts and E46 M3 transmission mounts, these are an excellent upgrade for your vehicle

Brand:
Assembled By ECS - Corporate Logo
ES#:
2588216
Mfg#:
11812228298PKT
Back Ordered
ON SALE!
$420.99

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

$407.87 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Piston Ring Set - Priced Each

ES#21185 - 11251437077 - Piston Ring Set - Priced Each - Standard bore replacement piston rings - Genuine BMW - BMW

Standard bore replacement piston rings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
21185
Mfg#:
11251437077
Ships in 10 Business Days
ON SALE! SAVE 25%
$89.99

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

$67.70 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Motor And Transmission Mount Kit

ES#2588209 - 22316799331KT - Motor And Transmission Mount Kit - Includes mounting hardware - Genuine BMW - BMW

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

Brand:
Genuine BMW - Corporate Logo
ES#:
2588209
Mfg#:
22316799331KT
Ships in 3 Business Days
$405.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Performance water pump kit

ES#2842165 - 888010330KT - High Performance water pump kit - Featuring Stewart High Performance water pump, GatesRacing belt, and heavy duty ECS water pump pulley - Assembled By ECS - BMW

Featuring Stewart High Performance water pump, GatesRacing belt, and heavy duty ECS water pump pulley 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#:
2842165
Mfg#:
888010330KT
Ships in 10 Business Days
Auto Notify
$404.53 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Water Pump Pulley

ES#2561562 - 11511436590 - Water Pump Pulley - A common failing piece due to the plastic design. - Febi - BMW

A common failing piece due to the plastic design. 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#:
2561562
Mfg#:
11511436590
In Stock
$37.99

This product was last offered at the strikethrough price on
04-17-2026

$30.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Expansion Tank

ES#253026 - 17117573781 - Coolant Expansion Tank - Does not include cap or coolant level sensor - Meyle - BMW
ECS Tuning recommends this product.

Does not include cap or coolant level sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
253026
Mfg#:
17117573781
In Stock
$66.99 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.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings