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BMW 135i Engine Parts & Accessories

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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

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

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
07-05-2026

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

N54T/"is" Engine & Transmission Mount Kit

ES#4753048 - 22116793240KT - N54T/"is" Engine & Transmission Mount Kit - Featuring upgraded engine mounts from the 335is/1M! - Assembled By ECS - BMW

Featuring upgraded engine mounts from the 335is/1M! 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#:
4753048
Mfg#:
22116793240KT
Back Ordered
$387.99

This product was last offered at the strikethrough price on
05-06-2026

$379.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Pan Gasket replacement kit

ES#3173509 - 11137548031KT - Oil Pan Gasket replacement kit - Includes new pan gasket, hardware and a oil service kit - Assembled By ECS - BMW

Includes new pan gasket, hardware and a oil service kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with automatic transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
3173509
Mfg#:
11137548031KT
In Stock
ON SALE!
$194.70 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Oil Cooler Housing Gasket Kit

ES#3575854 - 11428637820KT - Oil Cooler Housing Gasket Kit - Includes both oil filter housing gaskets and a Liqui Moly oil change kit - Assembled By ECS - BMW

Includes both oil filter housing gaskets and a Liqui Moly oil change kit 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#:
3575854
Mfg#:
11428637820KT
In Stock
ON SALE!
$162.99

This product was last offered at the strikethrough price on
03-10-2026

$158.27 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Thermostat

ES#2681810 - 11537601158 - Thermostat - Restore proper function to your cooling system - Wahler - BMW
ECS Tuning recommends this product.

Restore proper function to your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wahler - Corporate Logo
ES#:
2681810
Mfg#:
11537601158
Ships in 1 day
$121.98

This product was last offered at the strikethrough price on
06-08-2026

$100.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit - N55

ES#4447424 - 12138657273KT6 - Ignition Service Kit - N55 - Everything you need to service your ignition system - Assembled By ECS - BMW

Everything you need to service your ignition 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#:
4447424
Mfg#:
12138657273KT6
In Stock
$271.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Cooling System Refresh Kit - Level 1

ES#3170920 - 11517588885KT3 - ECS Cooling System Refresh Kit - Level 1 - An entry level cooling refresh kit - with high quality aftermarket components - Assembled By ECS - BMW

An entry level cooling refresh kit - with high quality aftermarket components affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with automatic transmission only

Brand:
Assembled By ECS - Corporate Logo
ES#:
3170920
Mfg#:
11517588885KT3
Ships on Aug 11, 2026
Auto Notify
ON SALE! SAVE 24%
$745.99

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

$566.49 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Turner N52/N54/N55 Polyurethane Engine Mount Set - 60A

ES#3221505 - 002445TMS01 - Turner N52/N54/N55 Polyurethane Engine Mount Set - 60A - Performance engine mounts to increase drivetrain rigidity; industry leading design without the noise and vibration of typical polyurethane mounts. - Turner Motorsport - BMW

Performance engine mounts to increase drivetrain rigidity; industry leading design without the noise and vibration of typical polyurethane mounts. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3221505
Mfg#:
002445TMS01
In Stock
ON SALE!
$595.99

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

$566.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Spool Performance Helix HPFP Overdrive Unit - Early N55

ES#4616167 - SP-54HX-1-n55 - Spool Performance Helix HPFP Overdrive Unit - Early N55 - Safely get more from your HPFP without causing it to fail prematurely! - Spool Performance - BMW

Safely get more from your HPFP without causing it to fail prematurely! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Spool Performance - Corporate Logo
ES#:
4616167
Mfg#:
SP-54HX-1-N55
Ships in 6 Business Days
$849.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#2142870 - 11537549476 - Thermostat - Restore proper function to your cooling system - Wahler - BMW

Restore proper function to your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Wahler - Corporate Logo
ES#:
2142870
Mfg#:
11537549476
In Stock
$97.91

This product was last offered at the strikethrough price on
03-25-2026

$96.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ARM 5" Intercooler - Sport Silver

ES#4370559 - 335FMIC - ARM 5" Intercooler - Sport Silver - Increase horsepower and cooling efficiency - ARM Motorsports - BMW

Increase horsepower and cooling efficiency affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ARM Motorsports - Corporate Logo
ES#:
4370559
Mfg#:
335FMIC
In Stock
$397.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cam Bearing Ledge - Intake

ES#18573 - 11127550913 - Cam Bearing Ledge - Intake - Should be replaced in conjunction with the exhaust bearing ledge - Genuine BMW - BMW

Should be replaced in conjunction with the exhaust bearing ledge affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
18573
Mfg#:
11127550913
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.

$706.99

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

$670.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Aluminum Skid Plate - Mill Finish - E8X 1 Series

ES#4220291 - 006137la01KT - Turner Motorsport Aluminum Skid Plate - Mill Finish - E8X 1 Series - The ultimate upgrade for belly pan replacement is here! - Turner Motorsport - BMW

The ultimate upgrade for belly pan replacement is here! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles equipped with an M-Sport front bumper cover

Brand:
Turner Motorsport - Corporate Logo
ES#:
4220291
Mfg#:
006137LA01KT
In Stock
ON SALE!
$633.99

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

$602.29 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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