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 Most Popular Parts

Sort By
Filter By
Return to Top

Stage 2 Sprung Ceramic Clutch And Flywheel Kit

ES#4749607 - XKBM24508-1B - Stage 2 Sprung Ceramic Clutch And Flywheel Kit - The XClutch Stage 2 Single Disc Clutch offers a lightweight design for improved throttle response combined with an increased torque capacity, making it ideal for racing applications. Rated for 520 ft-lbs! - XClutch - BMW

The XClutch Stage 2 Single Disc Clutch offers a lightweight design for improved throttle response combined with an increased torque capacity, making it ideal for racing applications. Rated for 520 ft-lbs! For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft
For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft

Brand:
XClutch - Corporate Logo
ES#:
4749607
Mfg#:
XKBM24508-1B
Back Ordered
Auto Notify
$1573.99 USD
Free Shipping

Transmission Mounting Bolt - Priced Each

ES#205536 - 23001222887 - Transmission Mounting Bolt - Priced Each - M8x50. Secures the transmission bellhousing to the engine block. - Genuine BMW - BMW

M8x50. Secures the transmission bellhousing to the engine block.

Brand:
Genuine BMW - Corporate Logo
ES#:
205536
Mfg#:
23001222887
In Stock
$3.99

This product was last offered at the strikethrough price on
03-04-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Single Disc Clutch And Flywheel Kit - Sprung Ceramic

ES#4766124 - XKBM23552-1B - Stage 2 Single Disc Clutch And Flywheel Kit - Sprung Ceramic - The XClutch Stage 2 Single Disc Clutch offers a lightweight design for improved throttle response combined with a high torque capacity, making it ideal for racing applications. Rated for 380 ft-lbs! - XClutch - BMW

The XClutch Stage 2 Single Disc Clutch offers a lightweight design for improved throttle response combined with a high torque capacity, making it ideal for racing applications. Rated for 380 ft-lbs!

Brand:
XClutch - Corporate Logo
ES#:
4766124
Mfg#:
XKBM23552-1B
In Stock
$1564.99 USD
Free Shipping

Cylinder Head - complete

ES#2918698 - 11127514540-3 - Cylinder Head - complete - Complete cylinder head with guides, seats, valves, springs, and all neccesary hardware for installation - AMC - BMW

Complete cylinder head with guides, seats, valves, springs, and all neccesary hardware for installation Includes all neccesary hardware for installation

Brand:
AMC - Corporate Logo
ES#:
2918698
Mfg#:
11127514540-3
Ships on Sep 17, 2026
$1562.99 USD

Rear Differential Service Kit

ES#4876240 - 835225790dKT - Rear Differential Service Kit - Perfect service kit for your BMW, Includes the diff fluid and drain plug to get the job done. - Assembled By ECS - BMW

Perfect service kit for your BMW, Includes the diff fluid and drain plug to get the job done. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4876240
Mfg#:
835225790DKT
In Stock
ON SALE!
$60.11 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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 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
$295.99

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

$259.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 1

ES#1596865 - ECSE391153 - ECS Cooling System Refresh Kit - Level 1 - Stop your cooling problems before they start - featuring a GEBA water pump with a metal impeller - Assembled By ECS - BMW

Stop your cooling problems before they start - featuring a GEBA water pump with a metal impeller 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
1596865
Mfg#:
ECSE391153
In Stock
ON SALE! SAVE 12%
$352.99

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

$311.86 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

M18 Transmission Fill Plug

ES#2643178 - 24117552349 - M18 Transmission Fill Plug - Includes rubber o-ring - ZF - BMW
ECS Tuning recommends this product.

Includes rubber o-ring We Price Match - Give Us A Call or Chat!
For vehicles with production date from 03/2001

Brand:
ZF - Corporate Logo
ES#:
2643178
Mfg#:
24117552349
In Stock
$6.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Intake Boot

ES#34019 - 13541435627 - Air Intake Boot - Connects directly to the throttle body - Genuine BMW - BMW

Connects directly to the throttle body

Brand:
Genuine BMW - Corporate Logo
ES#:
34019
Mfg#:
13541435627
In Stock
$64.99

This product was last offered at the strikethrough price on
05-27-2026

$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount Bushing - Street

ES#4617285 - PFF5-4655 - Transmission Mount Bushing - Street - Polyurethane mounts secure your transmission for crisp, mis-shift-free gear changes. - Powerflex - BMW

Polyurethane mounts secure your transmission for crisp, mis-shift-free gear changes.

Brand:
Powerflex - Corporate Logo
ES#:
4617285
Mfg#:
PFF5-4655
Ships on Sep 22, 2026
Auto Notify
$118.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Wheel Bearing - Priced Each

ES#261608 - 33411095652 - Rear Wheel Bearing - Priced Each - Hardware not included - FAG - BMW

Hardware not included

Brand:
FAG - Corporate Logo
ES#:
261608
Mfg#:
33411095652
In Stock
$69.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Conical Seat Locking Wheel Bolt Kit

ES#2960663 - 003901ecs28BM - Conical Seat Locking Wheel Bolt Kit - Black zinc coated wheel lock bolts for extra security on your wheels. M12x1.5x28mm - ECS - BMW MINI

Black zinc coated wheel lock bolts for extra security on your wheels. M12x1.5x28mm 10X Entries Into Our F80 M3 Sweepstakes
For use without spacers

Brand:
ECS - Corporate Logo
ES#:
2960663
Mfg#:
003901ECS28BM
In Stock
ON SALE! SAVE 25%
$81.99

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

$61.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Stud Conversion Kit - Half set

ES#2836724 - 001467ecs05kt - Wheel Stud Conversion Kit - Half set - Make wheel changes faster and easier, enough to convert one axle - ECS - BMW

Make wheel changes faster and easier, enough to convert one axle 10X Entries Into Our F80 M3 Sweepstakes
Ideal for vehicles with up to 20mm wheel spacers. May also be used with smaller spacers or without spacer

Brand:
ECS - Corporate Logo
ES#:
2836724
Mfg#:
001467ECS05KT
In Stock
ON SALE!
$100.99

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

$95.94 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Gearbox Sealing Lid - Priced Each

ES#43668 - 23311224825 - Gearbox Sealing Lid - Priced Each - Found in the transmission housing - Genuine BMW - BMW

Found in the transmission housing

Brand:
Genuine BMW - Corporate Logo
ES#:
43668
Mfg#:
23311224825
In Stock
4% off MSRP

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

$27.08

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

$25.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Complete Fuel Injector Set

ES#3647689 - 13537546244sKT - Complete Fuel Injector Set - Includes new injector, fuel rail o-ring and injector holder - Genuine BMW - BMW

Includes new injector, fuel rail o-ring and injector holder

Brand:
Genuine BMW - Corporate Logo
ES#:
3647689
Mfg#:
13537546244SKT
Ships in 3 Business Days
$1530.99

This product was last offered at the strikethrough price on
04-06-2026

$1529.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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