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BMW E46 Engine Parts & Accessories

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OEM Genuine BMW Oil Change Kit / Inspection I

ES#2550022 - e46m3oci - OEM Genuine BMW Oil Change Kit / Inspection I - Everything you'll need to do a complete oil change including Genuine BMW M Twin Power Turbo oil - Genuine BMW - BMW

Everything you'll need to do a complete oil change including Genuine BMW M Twin Power Turbo oil affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2550022
Mfg#:
E46M3OCI
In Stock
$148.99

This product was last offered at the strikethrough price on
06-09-2026

$146.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Rear Manifold Oxygen Sensor - Rear Position/Post-Cat

ES#11026 - 13951 - Rear Manifold Oxygen Sensor - Rear Position/Post-Cat - Also BMW # 11781406622. Located in the rear position of the exhaust manifold for cylinders 4-6 on the S54 engine - Bosch - BMW

Also BMW # 11781406622. Located in the rear position of the exhaust manifold for cylinders 4-6 on the S54 engine 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#:
11026
Mfg#:
13951
In Stock at Vendor
$208.90

This product was last offered at the strikethrough price on
05-19-2026

$186.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

New Water Pump - With O-Ring

ES#259608 - 11517527910 - New Water Pump - With O-Ring - Featuring a metal impeller - Hepu - BMW

Featuring a metal impeller affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Hepu - Corporate Logo
ES#:
259608
Mfg#:
11517527910
In Stock
$68.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Build-Your-Own E46 325/330 M54 Oil Change Kit

ES#3195822 - M50OCIPDK - Build-Your-Own E46 325/330 M54 Oil Change Kit - Select the oil and filter you want from many of the top brands! - Assembled By ECS - BMW

Select the oil and filter you want from many of the top brands! 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#:
3195822
Mfg#:
M50OCIPDK
In Stock
ON SALE!
Starting at $93.36 USD
Customize
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Intake Air Adjustment Unit/DISA Valve

ES#25488 - 11611440049 - Intake Air Adjustment Unit/DISA Valve - Located on the side of the intake manifold - Genuine BMW - BMW

Located on the side of the intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
25488
Mfg#:
11611440049
Ships in 2 Business Days
3% off MSRP

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

$422.26

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

$409.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Line Fitting Adapter

ES#2817090 - MM0CF-BMW - Oil Line Fitting Adapter - Allows you to use larger after market oil coolers that utilize AN fittings - Mishimoto - BMW

Allows you to use larger after market oil coolers that utilize AN fittings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Mishimoto - Corporate Logo
ES#:
2817090
Mfg#:
MM0CF-BMW
In Stock
$88.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit

ES#2597316 - 12131712219KT1 - Ignition Service Kit - Everything you need to service your ignition system including Bosch ignition coils and Bosch Platinum+4 spark plugs - Assembled By ECS - BMW

Everything you need to service your ignition system including Bosch ignition coils and Bosch Platinum+4 spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date from 09/2002

Brand:
Assembled By ECS - Corporate Logo
ES#:
2597316
Mfg#:
12131712219KT1
In Stock
$253.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Gasket - Set

ES#1831992 - 11121436822 - Cylinder Head Gasket - Set - Complete head gasket set, includes all of the required gasket and seals - Victor Reinz - BMW

Complete head gasket set, includes all of the required gasket and seals affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Victor Reinz - Corporate Logo
ES#:
1831992
Mfg#:
11121436822
In Stock
ON SALE!
$193.99

This product was last offered at the strikethrough price on
06-25-2026

$184.29 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Cover

ES#4304693 - 11127512839 - Valve Cover - A complete valve cover assembly - Bavarian Autosport - BMW

A complete valve cover assembly affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with production date from 09/2002

Brand:
Bavarian Autosport - Corporate Logo
ES#:
4304693
Mfg#:
11127512839
In Stock
ON SALE! SAVE 20%
$252.99

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

$202.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 1

ES#2063865 - ECSE461711-1 - ECS Cooling System Refresh Kit - Level 1 - Contains the components that commonly fail in your cooling system - featuring aftermarket contents and ECS aluminum pulley - Assembled By ECS - BMW

Contains the components that commonly fail in your cooling system - featuring aftermarket contents and ECS aluminum 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#:
2063865
Mfg#:
ECSE461711-1
In Stock
ON SALE!
$438.99

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

$403.26 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Performance Aluminum Radiator

ES#2999054 - MMRAD-E46-323 - Performance Aluminum Radiator - Fully brazed two-row aluminum core with TIG-welded end tanks - Mishimoto - BMW

Fully brazed two-row aluminum core with TIG-welded end tanks affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with manual transmission

Brand:
Mishimoto - Corporate Logo
ES#:
2999054
Mfg#:
MMRAD-E46-323
Ships in 3 Business Days
$503.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Air Intake Boot

ES#34025 - 13541438761 - Air Intake Boot - Connects mass airflow sensor to air intake tube - Genuine BMW - BMW

Connects mass airflow sensor to air intake tube affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
34025
Mfg#:
13541438761
In Stock
$40.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Cooler Line Fitting Adapter

ES#3006344 - TEN9910200 - Oil Cooler Line Fitting Adapter - Provides excellent flexibility with installing a new oil cooler - Turner Motorsport - BMW

Provides excellent flexibility with installing a new oil cooler affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3006344
Mfg#:
TEN9910200
In Stock
ON SALE!
$95.99

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

$91.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Manifold Oxygen Sensor - Front Position/Pre-Cat

ES#11024 - 13952 - Rear Manifold Oxygen Sensor - Front Position/Pre-Cat - Also BMW # 11781405324. Located in the front position of the exhaust manifold for cylinders 4-6 on the S54 engine - Bosch - BMW

Also BMW # 11781405324. Located in the front position of the exhaust manifold for cylinders 4-6 on the S54 engine 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#:
11024
Mfg#:
13952
In Stock
$117.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 M3 Water Pipe Connecting Line

ES#37983 - 17112229053 - E46 M3 Water Pipe Connecting Line - Connects the expansion tank to the upper radiator hose - Genuine BMW - BMW

Connects the expansion tank to the upper radiator hose affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
37983
Mfg#:
17112229053
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.

$96.35

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

$95.28 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

S54 Turner Motorsport Ultimate Power Pulley And Drive Belt Overhaul System

ES#3509738 - uppk-s54KT - S54 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!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3509738
Mfg#:
UPPK-S54KT
Ships on Aug 3, 2026
Auto Notify
ON SALE! SAVE 18%
$814.99

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

$666.33 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.

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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