Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

BMW E39 525i M54 2.5L

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle BMW E39 525i M54 2.5L
Your Vehicle BMW E39 525i M54 2.5L
Change Clear

BMW E39 525i M54 2.5L Engine Service & Maintenance Parts

Sort By
Filter By
Return to Top

IP High Performance Ignition Coil Set - M52/M54/S52

ES#4370064 - IP-A122602 - IP High Performance Ignition Coil Set - M52/M54/S52 - 4X more spark energy than stock coils! - Ignition Projects - BMW

4X more spark energy than stock coils! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Ignition Projects - Corporate Logo
ES#:
4370064
Mfg#:
IP-A122602
Ships in 5 Business Days
$895.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plugs - Set Of Six

ES#2535359 - 12120037607KT - Spark Plugs - Set Of Six - OEM replacement spark plugs - Genuine BMW - BMW

OEM replacement spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2535359
Mfg#:
12120037607KT
In Stock
$221.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#2680999 - Adk0046p - Accessory Belt Kit - Includes Contitech belts and high quality after market parts - Continental - BMW

Includes Contitech belts and high quality after market parts affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
For vehicles with production date from 09/2002

Brand:
Continental - Corporate Logo
ES#:
2680999
Mfg#:
ADK0046P
In Stock at Vendor
$295.99

This product was last offered at the strikethrough price on
04-17-2026

$289.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Kit - Level 2

ES#3108048 - E46M54OSW3KT2 - Oil Separator Kit - Level 2 - A truly complete kit for oil separator system maintenance, Includes ECS F-Connector - Assembled By ECS - BMW

A truly complete kit for oil separator system maintenance, Includes ECS F-Connector 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#:
3108048
Mfg#:
E46M54OSW3KT2
Ships on Jul 6, 2026
Auto Notify
ON SALE! SAVE 24%
$226.99

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

$172.53 USD
Free Shipping
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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
4152100
Mfg#:
22120
In Stock
ON SALE! SAVE 35%
$15.99

This product was last offered at the strikethrough price on
05-14-2026

$10.44 USD
Free Shipping
on orders $49 and up

Air Filter

ES#1884305 - 13721730946 - Air Filter - Quality air filter for your BMW - Hengst - BMW
ECS Tuning recommends this product.

Quality air filter for your BMW affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
1884305
Mfg#:
13721730946
In Stock
ON SALE!
$12.44

This product was last offered at the strikethrough price on
04-01-2026

$11.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Inline Fuel Filter AN8 Single In/Out - 6 Micron Filter

ES#4883024 - 501-0115 - Inline Fuel Filter AN8 Single In/Out - 6 Micron Filter - This fuel filter features a precision machined aluminum body and fittings - Precision Raceworks - Audi BMW Volkswagen Mercedes Benz MINI Porsche

This fuel filter features a precision machined aluminum body and fittings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Precision Raceworks - Corporate Logo
ES#:
4883024
Mfg#:
501-0115
Ships in 4 Business Days
$178.99

This product was last offered at the strikethrough price on
01-22-2026

$169.99 USD
Free Shipping
on orders $49 and up

Oil Separator Kit - Level 1

ES#260025 - e46m5411_61 - Oil Separator Kit - Level 1 - The most commonly replaced components in your breather system - Assembled By ECS - BMW

The most commonly replaced components in your breather 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#:
260025
Mfg#:
E46M5411_61
Ships on Jul 6, 2026
Auto Notify
ON SALE! SAVE 24%
$123.99

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

$93.71 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

990mm - cure your poor gas mileage by replacing your worn oxygen sensors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pierburg - Corporate Logo
ES#:
5376161
Mfg#:
11781427884
In Stock
$289.99

This product was last offered at the strikethrough price on
12-31-2025

$210.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit Service Kit

ES#2593600 - 11281437450KT - Accessory Belt Kit Service Kit - Utilizes all genuine BMW components - includes updated hydraulic alternator tensioner - Genuine BMW - BMW

Utilizes all genuine BMW components - includes updated hydraulic alternator tensioner 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#:
2593600
Mfg#:
11281437450KT
Ships in 3 Business Days
$817.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit Service Kit

ES#2598805 - 11287512762KT - Accessory Belt Kit Service Kit - Utilizes all genuine BMW components - includes updated hydraulic alternator tensioner - Genuine BMW - BMW

Utilizes all genuine BMW components - includes updated hydraulic alternator tensioner affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 09/2002

Brand:
Genuine BMW - Corporate Logo
ES#:
2598805
Mfg#:
11287512762KT
Ships in 3 Business Days
$809.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Air Filter

ES#2633581 - 13721730449 - Air Filter - Protect your engine - improve performance - Genuine BMW - BMW

Protect your engine - improve performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2633581
Mfg#:
13721730449
In Stock
5% off MSRP

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

$55.99

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

$52.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CATACLEAN - The Original Science

ES#4147385 - 120007 - CATACLEAN - The Original Science - Patented & EPA approved Complete Engine, Fuel and Exhaust System Cleaner Reduces Emissions and Improves Overall Engine Performance! - CATACLEAN - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Patented & EPA approved Complete Engine, Fuel and Exhaust System Cleaner Reduces Emissions and Improves Overall Engine Performance! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CATACLEAN - Corporate Logo
ES#:
4147385
Mfg#:
120007
In Stock
13% off MSRP

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

$31.99

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

$27.99 USD
Free Shipping

"Cold Climate" Crankcase Pressure Regulator Valve Kit

ES#4783145 - 11617533400S1 - "Cold Climate" Crankcase Pressure Regulator Valve Kit - Replace your cracked breather hoses and crankcase pressure valve with all new components! - Hamburg Tech - BMW

Replace your cracked breather hoses and crankcase pressure valve with all new components! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat! Superior performance for both warm and cold climates

Brand:
Hamburg Tech - Corporate Logo
ES#:
4783145
Mfg#:
11617533400S1
Ships in 1 Business Day
$110.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

OBDeleven Carry Pouch

ES#3978987 - CARRY-POUCH - OBDeleven Carry Pouch - Safely holds your OBDeleven device when not in use. - OBDeleven - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Safely holds your OBDeleven device when not in use. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
OBDeleven - Corporate Logo
ES#:
3978987
Mfg#:
CARRY-POUCH
In Stock
$12.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Spark Plug Gapper

ES#4336973 - CTA3235 - Spark Plug Gapper - Always check gap on your new spark plugs - CTA Tools - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Always check gap on your new spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTA Tools - Corporate Logo
ES#:
4336973
Mfg#:
CTA3235
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Service & Maintenance Parts

An ounce of prevention improves engine reliability and heads off big-ticket repairs. On average, the modest cost or periodic maintenance pays handsome rewards. Plan now to put your car on a regular schedule that includes fluid and filter changes, inspections, and recommended service.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings