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BMW 135i Most Popular Parts

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Wheel Spacer & Bolt Kit - 15mm

ES#205206 - ECS#255KTWB - Wheel Spacer & Bolt Kit - 15mm - Aircraft grade 6061-T6 aluminum spacers designed for precise fitment on your BMW - ECS - BMW

Aircraft grade 6061-T6 aluminum spacers designed for precise fitment on your BMW 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
205206
Mfg#:
ECS#255KTWB
In Stock
ON SALE! SAVE 15%
$201.93

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

$171.64 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMW N54 Accessory Belt Kit

ES#2581868 - N54ACBELTKT - BMW N54 Accessory Belt Kit - Everything you need to service your belt drive system including all high-quality, German-made components - Assembled By ECS - BMW

Everything you need to service your belt drive system including all high-quality, German-made components 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2581868
Mfg#:
N54ACBELTKT
In Stock
ON SALE!
$195.99

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

$195.06 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E9X N55 Heavy Duty Aluminum Expansion Tank Kit

ES#4817875 - 050610LA02 - E9X N55 Heavy Duty Aluminum Expansion Tank Kit - The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind. - Turner Motorsport - BMW
ECS Tuning recommends this product.

The last expansion tank you'll ever need! Upgrade to durable aluminum construction and leave failure-prone plastic behind. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
4817875
Mfg#:
050610LA02
In Stock
ON SALE! SAVE 25%
$457.99

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

$343.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Stud Conversion Kit - Full Set

ES#2836721 - 001467ecs03KT - Wheel Stud Conversion Kit - Full Set - Make wheel changes faster and easier, enough to convert both axles - ECS - BMW

Make wheel changes faster and easier, enough to convert both axles 10X Entries Into Our F80 M3 Sweepstakes
Ideal for vehicles with up to 10mm wheel spacers or those without spacers

Brand:
ECS - Corporate Logo
ES#:
2836721
Mfg#:
001467ECS03KT
In Stock
ON SALE! SAVE 10%
$194.99

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

$175.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3.08 Ring/Pinion With Helical Limited-Slip Differential

ES#2834888 - mf-trs-05e9230KT - 3.08 Ring/Pinion With Helical Limited-Slip Differential - Put all your power to the ground, and eliminate one wheel drive. Includes $600 refundable core charge. No machining required! - Team MFactory - BMW

Put all your power to the ground, and eliminate one wheel drive. Includes $600 refundable core charge. No machining required! *Any defects or warranty clams will have to go directly to Team M Factory*
For vehicles with a manual Transmission. Includes new Ring & Pinion for bolt-on Performance!

Brand:
Team MFactory - Corporate Logo
ES#:
2834888
Mfg#:
MF-TRS-05E9230KT
Ships in 10 Business Days
$2800.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N55 Valve Cover Kit

ES#4758219 - 11127570292EKT - N55 Valve Cover Kit - Includes the necessary items to replace your valve cover! - Genuine BMW - BMW

Includes the necessary items to replace your valve cover!

Brand:
Genuine BMW - Corporate Logo
ES#:
4758219
Mfg#:
11127570292EKT
In Stock
$735.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator - For Manual Transmission

ES#3545369 - 3716 - Radiator - For Manual Transmission - Standard replacement radiator - CSF - BMW

Standard replacement radiator 2X Entries Into Our F80 M3 Sweepstakes

Brand:
CSF - Corporate Logo
ES#:
3545369
Mfg#:
3716
In Stock
$109.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

"///M" License Plate Frame - Black

ES#196057 - 82120010404 - "///M" License Plate Frame - Black - Black stainless finish with the ///M logo - Genuine BMW - BMW

Black stainless finish with the ///M logo

Brand:
Genuine BMW - Corporate Logo
ES#:
196057
Mfg#:
82120010404
In Stock
6% off MSRP

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

$42.00

This product was last offered at the strikethrough price on
10-20-2026

$39.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMW Roundel Emblem

ES#79384 - 51148132375 - BMW Roundel Emblem - Tired of looking at your faded BMW Badge? Replace it with the Genuine OEM Roundel - Genuine BMW - BMW

Tired of looking at your faded BMW Badge? Replace it with the Genuine OEM Roundel

Brand:
Genuine BMW - Corporate Logo
ES#:
79384
Mfg#:
51148132375
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.

$63.32

This product was last offered at the strikethrough price on
10-20-2026

$62.62 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Top Tec 4100 (5w-40) - 5 Liter

ES#2785335 - 2330 - Top Tec 4100 (5w-40) - 5 Liter - Designed for engines with multi-valve technology and turbochargers - Liqui-Moly - BMW Volkswagen Porsche

Designed for engines with multi-valve technology and turbochargers 10X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
2785335
Mfg#:
2330
In Stock
46% off MSRP

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

$124.99

This product was last offered at the strikethrough price on
10-20-2026

$67.95 USD
Free Shipping
on orders $49 and up

Decoupling Element - Priced Each

ES#2079707 - 13537577649 - Decoupling Element - Priced Each - The metal ring found on the end of the injector - Genuine BMW - BMW

The metal ring found on the end of the injector

Brand:
Genuine BMW - Corporate Logo
ES#:
2079707
Mfg#:
13537577649
In Stock
$16.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Automatic Transmission Service Kit - Lifeguard 6 Fluid

ES#4642925 - 24152333907KT - Automatic Transmission Service Kit - Lifeguard 6 Fluid - GA6HP19Z Automatic Transmission Service Kit Includes all the necessary components for a complete transmission fluid service - ZF - BMW

GA6HP19Z Automatic Transmission Service Kit Includes all the necessary components for a complete transmission fluid service We Price Match - Give Us A Call or Chat!
GA6HP19Z Service Kit

Brand:
ZF - Corporate Logo
ES#:
4642925
Mfg#:
24152333907KT
In Stock
$264.99 USD
Free Shipping
on orders $49 and up

Boost Solenoid/Pressure Converter - Priced Each

ES#3035389 - 11747626350 - Boost Solenoid/Pressure Converter - Priced Each - Turbo system not holding boost? This could be the cause. - Pierburg - BMW
ECS Tuning recommends this product.

Turbo system not holding boost? This could be the cause.

Brand:
Pierburg - Corporate Logo
ES#:
3035389
Mfg#:
11747626350
In Stock
$178.99

This product was last offered at the strikethrough price on
07-12-2026

$95.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Accessory Belt Kit - Kevlar Reinforced

ES#4636405 - 11287582946KBKT - Performance Accessory Belt Kit - Kevlar Reinforced - Utilizes high quality components and our performance Kevlar reinforced belt. Includes idlers and tensioner assembly. - Assembled By ECS - BMW

Utilizes high quality components and our performance Kevlar reinforced belt. Includes idlers and tensioner assembly. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4636405
Mfg#:
11287582946KBKT
Ships on Nov 12, 2026
ON SALE!
$213.99

This product was last offered at the strikethrough price on
09-16-2026

$194.71 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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