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BMW E46 Engine Parts & Accessories

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S54 Silicone Throttle Body Intake Boot Set

ES#4030616 - 003313TMS03 - S54 Silicone Throttle Body Intake Boot Set - Highly durable under street and race conditions, including forced induction applications. Add your preferred clamps to install. - Turner Motorsport - BMW

Highly durable under street and race conditions, including forced induction applications. Add your preferred clamps to install. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date up to 10/2004 only

Brand:
Turner Motorsport - Corporate Logo
ES#:
4030616
Mfg#:
003313TMS03
In Stock
ON SALE! SAVE 25%
$147.99

This product was last offered at the strikethrough price on
06-13-2026

$110.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat With Housing

ES#259571 - 11537509227 - Thermostat With Housing - A common item to crack causing leaks - Mahle-Behr - BMW

A common item to crack causing leaks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mahle-Behr - Corporate Logo
ES#:
259571
Mfg#:
11537509227
Ships in 1 Business Day
$103.81 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Timing Chain - Lower

ES#2575494 - 11311432176 - Timing Chain - Lower - Keep your engine running properly - Iwis - BMW

Keep your engine running properly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Iwis - Corporate Logo
ES#:
2575494
Mfg#:
11311432176
In Stock
$83.99

This product was last offered at the strikethrough price on
06-08-2026

$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Coil - Priced Each

ES#3612445 - 12131748018bKT - Ignition Coil - Priced Each - Includes boot - Bosch - BMW

Includes boot 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:
Bosch - Corporate Logo
ES#:
3612445
Mfg#:
12131748018BKT
In Stock at Vendor
$86.99

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

$82.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Sprint Booster Power Converter V3

ES#3184663 - SBBM0003S - Sprint Booster Power Converter V3 - Reduces the delay of your "Drive by Wire" throttle response - All new V3 model provides additional features such as 'valet' and 'pedal lock' modes - Sprint Booster - BMW

Reduces the delay of your "Drive by Wire" throttle response - All new V3 model provides additional features such as 'valet' and 'pedal lock' modes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Sprint Booster - Corporate Logo
ES#:
3184663
Mfg#:
SBBM0003S
Ships on Jul 23, 2026
$289.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Expansion Tank Replacement Kit - Level 2

ES#2795143 - 17117573781KT6 - Expansion Tank Replacement Kit - Level 2 - More advanced expansion tank replacement kit - Assembled By ECS - BMW

More advanced expansion tank replacement 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#:
2795143
Mfg#:
17117573781KT6
In Stock
ON SALE! SAVE 25%
$164.99

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

$124.09 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Schrick Exhaust Camshaft

ES#3060277 - 0261A1561-DV0 - Schrick Exhaust Camshaft - Schrick exhaust camshaft - Schrick - BMW

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

Brand:
Schrick - Corporate Logo
ES#:
3060277
Mfg#:
0261A1561-DV0
Special Order: No Guaranteed ETA
$1721.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount - Priced Each

ES#2100620 - 22316799331 - Transmission Mount - Priced Each - Mounted at the rear of transmission on crossmember - Genuine BMW - BMW

Mounted at the rear of transmission on crossmember affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2100620
Mfg#:
22316799331
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.

$35.35

This product was last offered at the strikethrough price on
06-27-2026

$32.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Auxiliary Fan Switch

ES#4316517 - 13621433077 - Auxiliary Fan Switch - Comes with related o-ring - Bremmen Parts - BMW

Comes with related o-ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Mounted in lower radiator hose, controls operation of auxiliary fan

Brand:
Bremmen Parts - Corporate Logo
ES#:
4316517
Mfg#:
13621433077
In Stock
ON SALE! SAVE 22%
$20.99

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

$16.31 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Valve Cover Gasket Kit

ES#2792772 - 11129070990KT2 - Ultimate Valve Cover Gasket Kit - Includes valve cover gasket and sealing washers - Genuine BMW - BMW

Includes valve cover gasket and sealing washers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date up to 09/2002

Brand:
Genuine BMW - Corporate Logo
ES#:
2792772
Mfg#:
11129070990KT2
In Stock
$106.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Secondary Air Pump

ES#2574864 - 11727571589 - Secondary Air Pump - Common source of emissons related issues - Pierburg - BMW
ECS Tuning recommends this product.

Common source of emissons related issues affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 03/2003

Brand:
Pierburg - Corporate Logo
ES#:
2574864
Mfg#:
11727571589
In Stock
ON SALE! SAVE 13%
$393.85

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

$341.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Turner Intake & Valved Catback Exhaust

ES#4751384 - 023410LA09EBKT - E46 M3 Turner Intake & Valved Catback Exhaust - As close to perfection as you can get. Lightweight, free-flowing valved exhaust with valve controller for a versatile sound experience. The Turner Motorsport intake boasts a 200% improvement in flow! - Enthusiast Bundles - BMW

As close to perfection as you can get. Lightweight, free-flowing valved exhaust with valve controller for a versatile sound experience. The Turner Motorsport intake boasts a 200% improvement in flow! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751384
Mfg#:
023410LA09EBKT
Ships on Aug 7, 2026
Auto Notify
ON SALE! SAVE 35%
$2630.94

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

$1699.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Main Stud Kit - M50/M52/S50/S52

ES#4758996 - ARP-MSK-M50 - Main Stud Kit - M50/M52/S50/S52 - Prevent Main Cap Walk With ARP's Main Stud Kit for The M5X Engine Platform! - ARP - BMW

Prevent Main Cap Walk With ARP's Main Stud Kit for The M5X Engine Platform! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ARP - Corporate Logo
ES#:
4758996
Mfg#:
ARP-MSK-M50
Back Ordered
Auto Notify
$169.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber OEM-Style Intake Manifold - E46 M3

Upgrade your engine bay's styling with this carbon fiber airbox! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Karbonius Composites - Corporate Logo
ES#:
4876802
Mfg#:
E46AD09-CF-2
Ships in 3 Business Days
$1699.00 USD
Free Shipping

Front Main Crankshaft Seal

ES#2598716 - 11142249532 - Front Main Crankshaft Seal - Replace your leaking crankshaft seal - Elring - BMW

Replace your leaking crankshaft seal 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#:
2598716
Mfg#:
11142249532
In Stock
$12.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crankshaft Bolt

ES#20005 - 11211720633 - Crankshaft Bolt - Single bolt located in the end of the crankshaft - Genuine BMW - BMW

Single bolt located in the end of the crankshaft affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
20005
Mfg#:
11211720633
In Stock
1% off MSRP

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

$38.81

This product was last offered at the strikethrough price on
06-27-2026

$38.32 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.

Let us help you find the parts that fit your BMW

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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