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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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Belt Tensioner Conversion Kit

ES#4164847 - 11287838797K - Belt Tensioner Conversion Kit - Update from a mechanical tensioner to a hydraulic style tensioner - URO - BMW

Update from a mechanical tensioner to a hydraulic style tensioner 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#:
4164847
Mfg#:
11287838797K
In Stock
$82.99 USD
Free Shipping
on orders $49 and up

Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul System

ES#3521792 - uppke46tuvaleoKT - Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul System - Includes Accessory Belt System! - Assembled By ECS - BMW

Includes Accessory Belt System! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with Valeo alternator only

Brand:
Assembled By ECS - Corporate Logo
ES#:
3521792
Mfg#:
UPPKE46TUVALEOKT
Ships on Jul 17, 2026
Auto Notify
ON SALE!
$633.19

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

$580.26 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Housing Cap

ES#4629749 - 11421744000 - Oil Filter Housing Cap - Includes sealing o-ring - URO - BMW

Includes sealing o-ring 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#:
4629749
Mfg#:
11421744000
In Stock
$28.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Timing Chain Tensioner

ES#2576041 - 11311738700 - Upper Timing Chain Tensioner - Guide used to tension the timing chain - Febi - BMW
ECS Tuning recommends this product.

Guide used to tension the timing chain 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#:
2576041
Mfg#:
11311738700
In Stock at Vendor
$63.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Seal (90 X 110 X 12)

ES#4004435 - 11142249533 - Crankshaft Seal (90 X 110 X 12) - Prevents oil from leaking out of your crankcase at the front crankshaft flange - Victor Reinz - BMW

Prevents oil from leaking out of your crankcase at the front crankshaft flange affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
New style PTFE seal (without tension spring). | Rear

Brand:
Victor Reinz - Corporate Logo
ES#:
4004435
Mfg#:
11142249533
In Stock at Vendor
$46.99

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

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

Engine Oil Dipstick

ES#24167 - 11431436293 - Engine Oil Dipstick - Used to measure oil level - Genuine BMW - BMW

Used to measure oil level affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
24167
Mfg#:
11431436293
In Stock
7% off MSRP

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

$43.99

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

$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fan Mounting Kit

ES#4001106 - 30130011KT - Fan Mounting Kit - Includes 4 mounting straps/brackets to securely mount your SPAL fan. - Spal - BMW

Includes 4 mounting straps/brackets to securely mount your SPAL fan. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Spal - Corporate Logo
ES#:
4001106
Mfg#:
30130011KT
In Stock
$51.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Alternator Belt Tensioner

ES#2696132 - 11281717188 - Hydraulic Alternator Belt Tensioner - Hydraulic tensioner for alternator belt, ideal for servicing high mileage tensioner - Ina - BMW

Hydraulic tensioner for alternator belt, ideal for servicing high mileage tensioner 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#:
2696132
Mfg#:
11281717188
In Stock
$78.29

This product was last offered at the strikethrough price on
03-21-2026

$56.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector O-Ring - Priced Each

ES#34555 - 13641437487 - Fuel Injector O-Ring - Priced Each - Fuel rail to injector O-ring - Genuine BMW - BMW MINI

Fuel rail to injector O-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
34555
Mfg#:
13641437487
Ships in 3 Business Days
$9.99

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

$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E46 323/328 Mid Section With Integrated X-Pipe

ES#4883987 - 055935la01KT - E46 323/328 Mid Section With Integrated X-Pipe - Drop over 10 pounds and unleash a smoother, freer-flowing exhaust with the Turner X-Pipe. - Turner Motorsport - BMW

Drop over 10 pounds and unleash a smoother, freer-flowing exhaust with the Turner X-Pipe. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE TMS20 IN CART FOR BEST PRICE

Brand:
Turner Motorsport - Corporate Logo
ES#:
4883987
Mfg#:
055935LA01KT
In Stock
$565.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit

ES#4348516 - 12131703228IGKT2 - Ignition Service Kit - Assembled By ECS - BMW

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#:
4348516
Mfg#:
12131703228IGKT2
In Stock
$387.99

This product was last offered at the strikethrough price on
12-17-2025

$281.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Upper Oil Separator Vent Tube

ES#4338782 - 11617504535 - Upper Oil Separator Vent Tube - Runs from the top of the oil separator up to intake manifold. - Bavarian Autosport - BMW

Runs from the top of the oil separator up to intake manifold. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date from 01/2000

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4338782
Mfg#:
11617504535
In Stock
ON SALE! SAVE 20%
$24.99

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

$19.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Cover Securing Nut - Priced Each

ES#16062 - 07129904553 - Engine Cover Securing Nut - Priced Each - Commonly used in many different models - Genuine BMW - BMW MINI

Commonly used in many different models affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used to secure the engine covers down, 2 used per cover

Brand:
Genuine BMW - Corporate Logo
ES#:
16062
Mfg#:
07129904553
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Powerflex - Offset Lower Radiator Mounts - Street

ES#4716247 - PFF5-4652 - Powerflex - Offset Lower Radiator Mounts - Street - Enhance cooling efficiency, precise radiator alignment, improved durability, & reduced vibrations - Powerflex - BMW

Enhance cooling efficiency, precise radiator alignment, improved durability, & reduced vibrations affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Powerflex - Corporate Logo
ES#:
4716247
Mfg#:
PFF5-4652
In Stock
$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Main Seal

ES#3478264 - 11141432240 - Rear Main Seal - This is the paper gasket located under the crank seal - Elring - BMW

This is the paper gasket located under the crank seal 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#:
3478264
Mfg#:
11141432240
In Stock
$4.29 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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