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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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New Water Pump - With O-Ring

ES#10753 - 11517527910 - New Water Pump - With O-Ring - High quality German-made pump featuring a metal impeller - Geba - BMW
ECS Tuning recommends this product.

High quality German-made pump featuring a metal impeller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Geba - Corporate Logo
ES#:
10753
Mfg#:
11517527910
In Stock
$105.99

This product was last offered at the strikethrough price on
02-27-2026

$62.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Performance Ignition Coil - Priced Each

ES#3673194 - 5002 - High Performance Ignition Coil - Priced Each - Modified core windings offer increased spark for a faster and more efficient burn. - Bavarian Autosport - BMW
ECS Tuning recommends this product.

Modified core windings offer increased spark for a faster and more efficient burn. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
3673194
Mfg#:
5002
In Stock
ON SALE! SAVE 15%
$29.99

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

$25.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plugs - Set Of Six

ES#10331 - BKR6EQUP 6 - Spark Plugs - Set Of Six - The preferred spark plug of many BMW enthusiasts. - NGK - BMW

The preferred spark plug of many BMW enthusiasts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
NGK - Corporate Logo
ES#:
10331
Mfg#:
BKR6EQUP 6
In Stock
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

M52 M54 Silicone Radiator Hose Kit (Connectors included)

ES#4315269 - 006205LA09 - M52 M54 Silicone Radiator Hose Kit (Connectors included) - Retains OEM fitment with superior looks and durability. Connectors included! - ECS - BMW

Retains OEM fitment with superior looks and durability. Connectors included! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4315269
Mfg#:
006205LA09
In Stock
ON SALE! SAVE 25%
$194.99

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

$146.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

New Alternator - 120amp

ES#4751406 - 12317501690 - New Alternator - 120amp - Brand new, not remanufactured. No core charge! - Bavarian Autosport - BMW

Brand new, not remanufactured. No core charge! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4751406
Mfg#:
12317501690
Ships on Aug 4, 2026
Auto Notify
ON SALE! SAVE 20%
$211.99

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

$169.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Cooling System Hose Kit

ES#2597228 - 11531436408KT1 - Complete Cooling System Hose Kit - A complete hose kit including coolant - Assembled By ECS - BMW

A complete hose kit including coolant 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#:
2597228
Mfg#:
11531436408KT1
In Stock
ON SALE!
$287.99

This product was last offered at the strikethrough price on
01-03-2026

$285.38 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cylinder Head Stud Kit

ES#2575219 - 201-4302 - Cylinder Head Stud Kit - High strength stud conversion for factory replacement or a full race motor - ARP - BMW

High strength stud conversion for factory replacement or a full race motor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ARP - Corporate Logo
ES#:
2575219
Mfg#:
201-4302
In Stock
19% off MSRP

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

$295.92

This product was last offered at the strikethrough price on
06-10-2026

$240.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Aluminum Water Pump Pulley - Black

ES#2855687 - 001977ECS03A - ECS Aluminum Water Pump Pulley - Black - Finally, a durable, attractive water pump pulley that won't break! - ECS - BMW

Finally, a durable, attractive water pump pulley that won't break! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2855687
Mfg#:
001977ECS03A
In Stock
ON SALE!
$101.99

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

$96.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

K+DCAN Cable - FTDI FT232RL Style OBD2 Cable

ES#4508968 - 01KDCABLE - K+DCAN Cable - FTDI FT232RL Style OBD2 Cable - Connect to 1998-2018 BMW OBD2 systems with a laptop. - Bremmen Parts - BMW

Connect to 1998-2018 BMW OBD2 systems with a laptop. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4508968
Mfg#:
01KDCABLE
In Stock
$33.99

This product was last offered at the strikethrough price on
02-20-2026

$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engine Mount - 75A Durometer (Pair)

ES#4375397 - 1181228379812KT - Engine Mount - 75A Durometer (Pair) - Keep your engine securely mounted with our solid, non-fluid filled mounts. Can be sold individually (ES4335401) - ECS - BMW

Keep your engine securely mounted with our solid, non-fluid filled mounts. Can be sold individually (ES4335401) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4375397
Mfg#:
1181228379812KT
In Stock
ON SALE! SAVE 22%
$193.99

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

$151.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Endurance Series AGM Battery- B49-H8-L5

ES#3617596 - B10049 - Endurance Series AGM Battery- B49-H8-L5 - Designed for a wide range of demanding, high performance applications, this battery is reliable, long-lasting, and engineered for high shock and vibration applications. - Braille - Audi BMW

Designed for a wide range of demanding, high performance applications, this battery is reliable, long-lasting, and engineered for high shock and vibration applications. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shipping

Brand:
Braille - Corporate Logo
ES#:
3617596
Mfg#:
B10049
Ships in 8 Business Days
$446.99 USD
This product is lifetime replacement eligible Lifetime Replacement

M-Series Performance Ignition Coil - Blue

ES#4456862 - D650-0007 - M-Series Performance Ignition Coil - Blue - A direct plug-and-play upgrade with up to 10% more energy output than stock! - Dinan - BMW

A direct plug-and-play upgrade with up to 10% more energy output than stock! Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Dinan - Corporate Logo
ES#:
4456862
Mfg#:
D650-0007
In Stock
11% off MSRP

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

$37.99

This product was last offered at the strikethrough price on
06-10-2026

$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Magnetic Oil Drain Plug - Priced Each (M12x1.5)

ES#251839 - 002201ECS01A - Magnetic Oil Drain Plug - Priced Each (M12x1.5) - Attracts metal particulates that would otherwise be circulating your engine! Includes one copper washer - ECS - BMW MINI

Attracts metal particulates that would otherwise be circulating your engine! Includes one copper washer affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
251839
Mfg#:
002201ECS01A
In Stock
ON SALE! SAVE 25%
$37.99

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

$28.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

M-Series Performance Ignition Coil - Red

ES#4456861 - D650-0006 - M-Series Performance Ignition Coil - Red - A direct plug-and-play upgrade with up to 10% more energy output than stock! - Dinan - BMW

A direct plug-and-play upgrade with up to 10% more energy output than stock! Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Dinan - Corporate Logo
ES#:
4456861
Mfg#:
D650-0006
In Stock
11% off MSRP

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

$37.99

This product was last offered at the strikethrough price on
06-10-2026

$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Valve Cover Gasket Kit

ES#2792771 - 11129070990KT - Ultimate Valve Cover Gasket Kit - Includes valve cover gasket and sealing washers - Elring - BMW
ECS Tuning recommends this product.

Includes valve cover gasket and sealing washers 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#:
2792771
Mfg#:
11129070990KT
In Stock
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 1

ES#263518 - ECSE461711-1 - ECS Cooling System Refresh Kit - Level 1 - Contains the components that commonly fail in your cooling system - featuring aftermarket contents - Assembled By ECS - BMW

Contains the components that commonly fail in your cooling system - featuring aftermarket contents 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#:
263518
Mfg#:
ECSE461711-1
In Stock
ON SALE!
$337.99

This product was last offered at the strikethrough price on
02-27-2026

$322.77 USD
Free Shipping
This product is lifetime replacement eligible Partial 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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