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BMW 135i Most Popular Parts

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Cylinder Head Install Kit

ES#4743055 - n55cylhdKT - Cylinder Head Install Kit - Everything you need to install a new cylinder head. - Assembled By ECS - BMW

Everything you need to install a new cylinder head. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with a production date from 01/2011

Brand:
Assembled By ECS - Corporate Logo
ES#:
4743055
Mfg#:
N55CYLHDKT
In Stock
$383.99

This product was last offered at the strikethrough price on
06-19-2026

$382.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heater Return Line

ES#38447 - 17127548230 - Heater Return Line - From the heater core to the expansion tank - Genuine BMW - BMW

From the heater core to the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with automatic transmission

Brand:
Genuine BMW - Corporate Logo
ES#:
38447
Mfg#:
17127548230
In Stock
$173.23

This product was last offered at the strikethrough price on
01-07-2026

$173.21 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Polyurethane Transmission Mount Set - 95A (Track - Green)

ES#3970752 - PTM-BT - Polyurethane Transmission Mount Set - 95A (Track - Green) - Significantly stiffer and stronger than OEM rubber. Noticeable increase in NVH. Excellent for enthusiastically driven street and track cars. - Revshift - BMW

Significantly stiffer and stronger than OEM rubber. Noticeable increase in NVH. Excellent for enthusiastically driven street and track cars. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Revshift - Corporate Logo
ES#:
3970752
Mfg#:
PTM-BT
In Stock
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N55 Turbocharger w/ Exhaust Manifold

ES#3987658 - 11657636424 - N55 Turbocharger w/ Exhaust Manifold - Brand new turbocharger from OEM BorgWarner - Pneumatic Wastegate - BorgWarner - BMW
ECS Tuning recommends this product.

Brand new turbocharger from OEM BorgWarner - Pneumatic Wastegate affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with a pneumatic wastegate only

Brand:
BorgWarner - Corporate Logo
ES#:
3987658
Mfg#:
11657636424
In Stock
Limited Qty Sale
$1937.95

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

$1813.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VANOS Solenoid Valve

ES#4782795 - 11367585425 - VANOS Solenoid Valve - Commonly addresses 2A87 & 2A82 check engine codes. Includes sealing o-ring set. - Febi - BMW

Commonly addresses 2A87 & 2A82 check engine codes. Includes sealing o-ring set. 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:
Febi - Corporate Logo
ES#:
4782795
Mfg#:
11367585425
In Stock at Vendor
$108.83

This product was last offered at the strikethrough price on
04-15-2026

$97.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turbo Coolant Line Kit

ES#4765882 - 11537558900KT3 - Turbo Coolant Line Kit - Includes all four coolant lines and 1 Gallon of Genuine BMW coolant. - Assembled By ECS - BMW

Includes all four coolant lines and 1 Gallon of Genuine BMW coolant. 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#:
4765882
Mfg#:
11537558900KT3
In Stock
ON SALE! SAVE 23%
$253.99

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

$194.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

DCT Transmission Service Kit

ES#2677651 - 83220440214KT1 - DCT Transmission Service Kit - Includes fluid, filters, and drain plugs to service your Double Clutch Transmission - Assembled By ECS - BMW

Includes fluid, filters, and drain plugs to service your Double Clutch Transmission affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Includes an ECS Tuning Magnetic Drain Plug to capture metallic particles and extend component life

Brand:
Assembled By ECS - Corporate Logo
ES#:
2677651
Mfg#:
83220440214KT1
In Stock
ON SALE!
$396.08 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Spark Plugs - Set Of Six (#ZGR6STE2)

ES#257800 - 12120034087 - Spark Plugs - Set Of Six (#ZGR6STE2) - From an original equipment supplier. - Bosch - BMW

From an original equipment supplier. 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#:
257800
Mfg#:
12120034087
In Stock
$95.94 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#2580613 - 11287563927 - Accessory Belt Tensioner Assembly - This is the main belt tensioner for A/C, Alternator, and power steering. - Ina - BMW
ECS Tuning recommends this product.

This is the main belt tensioner for A/C, Alternator, and power steering. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
2580613
Mfg#:
11287563927
In Stock
$107.99

This product was last offered at the strikethrough price on
04-15-2026

$71.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E9X N54/N55 6MT High-Performance Dual Core Aluminum Radiator

ES#4839753 - 004443LA01 - E9X N54/N55 6MT High-Performance Dual Core Aluminum Radiator - Track-tested and street-readythe ULTIMATE cooling system upgrade for your N54 or N55! - Turner Motorsport - BMW

Track-tested and street-ready—the ULTIMATE cooling system upgrade for your N54 or N55! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
10X Entries For Our Spin To Win Sweepstakes!
For vehicles with manual transmission only

Brand:
Turner Motorsport - Corporate Logo
ES#:
4839753
Mfg#:
004443LA01
Ships on Sep 14, 2026
Auto Notify
ON SALE!
$604.99

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

$586.84 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Downpipe Exhaust Gasket - Priced Each

ES#2626518 - 18307553603 - Downpipe Exhaust Gasket - Priced Each - Located between downpipe and mid-pipes, 2 required - Elring - BMW
ECS Tuning recommends this product.

Located between downpipe and mid-pipes, 2 required 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#:
2626518
Mfg#:
18307553603
In Stock
$19.60 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intensity Carbon Lithium-ION Battery - i48CX - 10.5lbs

ES#3617648 - i48CX - Intensity Carbon Lithium-ION Battery - i48CX - 10.5lbs - Replace your stock, heavy battery with a direct replacement, lightweight performance Lithium battery that weighs in at only 10.5lbs! - Braille - BMW

Replace your stock, heavy battery with a direct replacement, lightweight performance Lithium battery that weighs in at only 10.5lbs! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship this item out of the US or with priority shippi

Brand:
Braille - Corporate Logo
ES#:
3617648
Mfg#:
I48CX
Ships in 4 Business Days
$1164.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Indicator

ES#4583600 - 12617607910 - Oil Level Indicator - Reads oil level in oil pan - Hamburg Tech - BMW

Reads oil level in oil pan affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4583600
Mfg#:
12617607910
In Stock
$136.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exact-Fit Stainless Steel Brake Lines - Rear

ES#3525717 - 025321ECS01 - Exact-Fit Stainless Steel Brake Lines - Rear - DOT-compliant kit to improve pedal feel in your vehicle. - ECS - BMW

DOT-compliant kit to improve pedal feel in your vehicle. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3525717
Mfg#:
025321ECS01
In Stock
ON SALE! SAVE 10%
$86.99

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

$78.29 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Level Indicator

ES#2100546 - 12617607910 - Oil Level Indicator - Reads oil level in oil pan - Genuine BMW - BMW

Reads oil level in oil pan affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2100546
Mfg#:
12617607910
In Stock
14% off MSRP

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

$298.81

This product was last offered at the strikethrough price on
07-06-2026

$257.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Clutch Slave Cylinder

ES#249122 - 21526785964 - Clutch Slave Cylinder - Located on the transmission - Genuine BMW - BMW

Located on the transmission affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
249122
Mfg#:
21526785964
In Stock
3% off MSRP

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

$113.92

This product was last offered at the strikethrough price on
07-06-2026

$109.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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