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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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E46 Radiator Hose - Lower

ES#2803379 - 11531436408 - E46 Radiator Hose - Lower - A common source of cooling system failure - Rein - BMW

A common source of cooling system failure 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803379
Mfg#:
11531436408
In Stock
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Top Tec 4110 Engine Oil (5w-40) - 1 Liter

ES#4152100 - 22120 - Top Tec 4110 Engine Oil (5w-40) - 1 Liter - Great for both gasoline and diesel engines! - Liqui-Moly - BMW Porsche

Great for both gasoline and diesel engines! 10X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
4152100
Mfg#:
22120
Ships in 2 Business Days
17% off MSRP

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

$23.99

This product was last offered at the strikethrough price on
10-14-2026

$19.99 USD
Free Shipping
on orders $49 and up

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 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Rein - Corporate Logo
ES#:
2803457
Mfg#:
17127510952
In Stock
$26.99

This product was last offered at the strikethrough price on
09-13-2026

$23.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat With Housing

ES#4759911 - 11537509227 - Thermostat With Housing - A common item to crack causing leaks - Bremmen Parts - BMW

A common item to crack causing leaks 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4759911
Mfg#:
11537509227
In Stock
ON SALE! SAVE 10%
$50.99

This product was last offered at the strikethrough price on
09-03-2026

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

Radiator Hose - Upper

ES#38318 - 17127510952 - Radiator Hose - Upper - A common source of cooling system failure - Genuine BMW - BMW

A common source of cooling system failure

Brand:
Genuine BMW - Corporate Logo
ES#:
38318
Mfg#:
17127510952
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.

$104.65

This product was last offered at the strikethrough price on
11-02-2026

$97.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Coolant/Antifreeze - 1 Liter

ES#2178666 - 82142209769 - Coolant/Antifreeze - 1 Liter - Smaller bottle than a usual jug - great to throw in the trunk! - Genuine BMW - BMW

Smaller bottle than a usual jug - great to throw in the trunk! For Vehicles Made Pre-2018

Brand:
Genuine BMW - Corporate Logo
ES#:
2178666
Mfg#:
82142209769
In Stock
$10.60

This product was last offered at the strikethrough price on
08-23-2026

$10.57 USD
Free Shipping
on orders $49 and up

Complete Cylinder Head basic Replacement Kit

ES#2918754 - 11127514540-2KT - Complete Cylinder Head basic Replacement Kit - Everything you will need to do a head service on your BMW - Assembled By ECS - BMW

Everything you will need to do a head service on your BMW 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2918754
Mfg#:
11127514540-2KT
Ships on Jan 19, 2027
$2428.99

This product was last offered at the strikethrough price on
06-11-2026

$2394.99 USD
This product is lifetime replacement eligible Partial Replacement

Hex Bolt

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

M8x22-8.8-ZNS3

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

Idle Control Valve

ES#4689774 - 13411744713 - Idle Control Valve - An integral part of the air intake system - Bavarian Autosport - BMW

An integral part of the air intake system 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4689774
Mfg#:
13411744713
Back Ordered
ON SALE!
$131.74 USD
Free Shipping
on orders $49 and up

Oxygen Sensor - Priced Each

ES#252546 - 11781433940 - Oxygen Sensor - Priced Each - 2 Required in each application - Bosch - BMW
ECS Tuning recommends this product.

2 Required in each application We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
252546
Mfg#:
11781433940
In Stock
$147.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain Tensioner Assembly

ES#4505345 - 11311703746A - Timing Chain Tensioner Assembly - Includes a brand new piston, cylinder, spring, and washer! - Bremmen Parts - BMW

Includes a brand new piston, cylinder, spring, and washer! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4505345
Mfg#:
11311703746A
In Stock
ON SALE!
$22.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#4870454 - 11781742050 - Oxygen Sensor - Priced Each - 2 required in each application - URO - BMW

2 required in each application 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4870454
Mfg#:
11781742050
In Stock
$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump Assembly

ES#37448 - 16146766942 - Fuel Pump Assembly - Located in the fuel tank-includes fuel level sending unit - Genuine BMW - BMW

Located in the fuel tank-includes fuel level sending unit

Brand:
Genuine BMW - Corporate Logo
ES#:
37448
Mfg#:
16146766942
Ships in 1-2 days
6% off MSRP

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

$495.99

This product was last offered at the strikethrough price on
11-02-2026

$467.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 3

ES#2497298 - 17119071518KT - ECS Cooling System Refresh Kit - Level 3 - The ultimate kit to cover all the necessary components - featuring OEM contents - Genuine BMW - BMW

The <font color='red'> ultimate</font> kit to cover all the necessary components - featuring OEM contents For vehicles with manual transmission only and production date from 10/1998

Brand:
Genuine BMW - Corporate Logo
ES#:
2497298
Mfg#:
17119071518KT
Ships in 3 Business Days
$2327.99 USD
This product is lifetime replacement eligible Partial Replacement

Crankshaft Position Sensor

ES#4316513 - 12141709616 - Crankshaft Position Sensor - Does not include O-ring - Bremmen Parts - BMW

Does not include O-ring 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4316513
Mfg#:
12141709616
Ships on Jan 11, 2027
ON SALE!
$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Mount - Priced Each

ES#2748915 - 11812283798 - Engine Mount - Priced Each - Keep your engine securely mounted - Lemforder - BMW
ECS Tuning recommends this product.

Keep your engine securely mounted We Price Match - Give Us A Call or Chat!
Harder durometer mount from the M3 for improved performance.

Brand:
Lemforder - Corporate Logo
ES#:
2748915
Mfg#:
11812283798
In Stock
$99.99 USD
Free Shipping
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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Manufacturer names and/or part numbers are used only for identification purposes.

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