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BMW 135i Most Popular Parts

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N54 Ultimate Performance Ignition Service Kit - Brisk 1 Step Colder Plugs

ES#4690416 - N54IGNTKT - N54 Ultimate Performance Ignition Service Kit - Brisk 1 Step Colder Plugs - Full upgraded performance ignition service including Brisk 1 step colder spark plugs, dielectric grease and Turner ignition coils! - Turner Motorsport - BMW

Full upgraded performance ignition service including Brisk 1 step colder spark plugs, dielectric grease and Turner ignition coils! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4690416
Mfg#:
N54IGNTKT
In Stock
ON SALE!
$302.99

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

$299.66 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turner Motorsport Front Control Arm Monoball Upgrade Kit

ES#3132731 - e9x0031313tKT - Turner Motorsport Front Control Arm Monoball Upgrade Kit - Comes with both OE curved and straight M arms as a complete assembled kit with bushings and hardware. - Turner Motorsport - BMW

Comes with both OE curved and straight M arms as a complete assembled kit with bushings and hardware. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3132731
Mfg#:
E9X0031313TKT
Ships in 5 Business Days
ON SALE! SAVE 20%
$1143.99

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

$915.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3.46 Pumpkin With Helical LSD - 188 Diff (Small Case)

ES#2877643 - mf-trs-05e9234KT - 3.46 Pumpkin With Helical LSD - 188 Diff (Small Case) - Allows for traction at all times by providing the most power to the wheel with more grip. Unlike plate differentials (1,1.5,2-way) helical LSDs can supply different spin rates to each axle, like when cornering. - Team MFactory - BMW

Allows for traction at all times by providing the most power to the wheel with more grip. Unlike plate differentials (1,1.5,2-way) helical LSDs can supply different spin rates to each axle, like when cornering. Includes new pumpkin for a complete bolt-in replacement! Includes $650 refundable core charge.
For vehicles with automatic transmission

Brand:
Team MFactory - Corporate Logo
ES#:
2877643
Mfg#:
MF-TRS-05E9234KT
Ships in 10 Business Days
$2276.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Clutch Kit - 6 Speed Transmission

ES#4000776 - 21208631999 - Clutch Kit - 6 Speed Transmission - Includes clutch disc, pressure plate, and clutch release bearing - LUK - BMW
ECS Tuning recommends this product.

Includes clutch disc, pressure plate, and clutch release bearing We Price Match - Give Us A Call or Chat!
For vehicles with manual transmission only

Brand:
LUK - Corporate Logo
ES#:
4000776
Mfg#:
21208631999
In Stock
$454.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

MAP Sensor

ES#4057188 - 13627599042 - MAP Sensor - Hamburg Tech Map Sensor for maximum flow readings - Hamburg Tech - BMW

Hamburg Tech Map Sensor for maximum flow readings We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4057188
Mfg#:
13627599042
In Stock
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stainless Brake Rotor Set Screw - M8x1.25x14mm - Priced Each

ES#2162802 - 6-ECS-001 - Stainless Brake Rotor Set Screw - M8x1.25x14mm - Priced Each - Made from stainless steel so it will not seize into the hub - ECS - BMW MINI

Made from stainless steel so it will not seize into the hub 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2162802
Mfg#:
6-ECS-001
In Stock
ON SALE! SAVE 25%
$6.99

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

$5.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N54 Aluminum Coolant Expansion Tank Relocation Kit - 135i

ES#3647096 - 021942TMS14 - N54 Aluminum Coolant Expansion Tank Relocation Kit - 135i - Ditch the weak, factory plastic coolant expansion tank and free up space on the hot side of your engine bay! - Turner Motorsport - BMW

Ditch the weak, factory plastic coolant expansion tank and free up space on the hot side of your engine bay! 10X Entries For Our 25th Anniversary Sweepstakes!
Compatible with factory/aftermarket cold side intakes as well as hot side intakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3647096
Mfg#:
021942TMS14
In Stock
ON SALE! SAVE 15%
$815.99

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

$693.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

M Valve stem caps

ES#3251083 - 36122456427 - M Valve stem caps - A set of black caps featuring the ///M logo - Genuine BMW - BMW

A set of black caps featuring the ///M logo

Brand:
Genuine BMW - Corporate Logo
ES#:
3251083
Mfg#:
36122456427
In Stock
$23.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

N55/S55 37cc Platinum Series Dish Piston Set

ES#4685603 - 647000C-6 - N55/S55 37cc Platinum Series Dish Piston Set - Upgrade to Manley's Platinum Series Pistons for increased performance! Stock 10.2:1 Compression Ratio - MANLEY - BMW

Upgrade to Manley's Platinum Series Pistons for increased performance! Stock 10.2:1 Compression Ratio Std. Size

Brand:
MANLEY - Corporate Logo
ES#:
4685603
Mfg#:
647000C-6
In Stock at Vendor
8% off MSRP

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

$1208.99

This product was last offered at the strikethrough price on
08-21-2026

$1111.99 USD
Free Shipping
on orders $49 and up

Oil Pan Gasket - With Bolts

ES#4158448 - 11132210959KT2 - Oil Pan Gasket - With Bolts - Gasket between oil pan and engine block - Genuine BMW - BMW

Gasket between oil pan and engine block For vehicles with an Automatic Transmission
For automatic transmissions Only!

Brand:
Genuine BMW - Corporate Logo
ES#:
4158448
Mfg#:
11132210959KT2
In Stock
$126.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#3131376 - 11287582946 - Accessory Belt Tensioner Assembly - Mechanical belt tensioner for the A/C and power steering system - Ina - BMW
ECS Tuning recommends this product.

Mechanical belt tensioner for the A/C and power steering system We Price Match - Give Us A Call or Chat!

Brand:
Ina - Corporate Logo
ES#:
3131376
Mfg#:
11287582946
Ships in 2 Business Days
$115.27 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

N54 Crank Seal Guard & Performance Kevlar-Reinforced Accessory Belt

ES#4876652 - 049453LA01-02KT8 - N54 Crank Seal Guard & Performance Kevlar-Reinforced Accessory Belt - Protect your engine from catastrophic damage and upgrade your accessory belt with this Enthusiast Bundle! - Enthusiast Bundles - BMW

Protect your engine from catastrophic damage and upgrade your accessory belt with this Enthusiast Bundle! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876652
Mfg#:
049453LA01-02KT8
Ships on Nov 12, 2026
Auto Notify
ON SALE! SAVE 47%
$170.99

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

$91.08 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Front Sway Bar End Links - 255-315mm

ES#4932372 - 059091LA01 - Adjustable Front Sway Bar End Links - 255-315mm - An essential performance upgrade for lowered suspensions or a heavy-duty OE replacement. - ECS - BMW

An essential performance upgrade for lowered suspensions or a heavy-duty OE replacement. 10X Entries For Our 25th Anniversary Sweepstakes!
Measure before purchasing! This is for custom/lowered applications only and may not fit with stock springs/dampers. Range of adjustment: 255-315mm.

Brand:
ECS - Corporate Logo
ES#:
4932372
Mfg#:
059091LA01
In Stock
$199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor

ES#3236239 - 11787596924 - Oxygen Sensor - 740mm. Front O2 sensor/Lambda probe - Bosch - BMW
ECS Tuning recommends this product.

740mm. Front O2 sensor/Lambda probe 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
3236239
Mfg#:
11787596924
In Stock
$163.84

This product was last offered at the strikethrough price on
05-19-2026

$162.15 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Limited Slip Differential - 188 (Small Diff Housing)

ES#2917892 - 30309175WKWVT - Limited Slip Differential - 188 (Small Diff Housing) - Put all your power to the ground! *fits ratios of 3.15 and up* - Wavetrac - BMW

Put all your power to the ground! *​fits ratios of 3.15 and up* For Automatic Transmission for years 2008+

Brand:
Wavetrac - Corporate Logo
ES#:
2917892
Mfg#:
30309175WKWVT
Ships in 10 Business Days
$1245.99 USD
Free Shipping
on orders $49 and up

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