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BMW 335i Engine Parts & Accessories

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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

Thermostat

ES#4017637 - 11537549476 - Thermostat - Restore proper function to your cooling system - URO - BMW

Restore proper function to your cooling system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
4017637
Mfg#:
11537549476
In Stock
$74.99 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
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

Spark Plug - Priced Each (ZR5TPP33)

ES#2538491 - 12120037582 - Spark Plug - Priced Each (ZR5TPP33) - Keep your motor running smoothly, and avoid misfires with new spark plugs - Bosch - BMW
ECS Tuning recommends this product.

Keep your motor running smoothly, and avoid misfires with new spark plugs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2538491
Mfg#:
12120037582
In Stock
$9.44 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime 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
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

Chain Tensioner - With Gasket Ring

ES#3478068 - 11317584723 - Chain Tensioner - With Gasket Ring - Addresses chain slap or other noise caused by a failed or failing tensioner - Bremmen Parts - BMW
ECS Tuning recommends this product.

Addresses chain slap or other noise caused by a failed or failing tensioner affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
3478068
Mfg#:
11317584723
In Stock
ON SALE! SAVE 15%
$93.99

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

$79.89 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 Jul 7, 2026
Auto Notify
ON SALE! SAVE 20%
$747.99

This product was last offered at the strikethrough price on
01-03-2026

$598.49 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Accessory Belt Tensioner Assembly

ES#3134113 - 11288604266 - Accessory Belt Tensioner Assembly - This is the main belt tensioner for A/C, power steering and alternator - Ina - BMW
ECS Tuning recommends this product.

This is the main belt tensioner for A/C, power steering and alternator 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#:
3134113
Mfg#:
11288604266
In Stock at Vendor
$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Camshaft Position Sensor - Priced Each

ES#34388 - 13627525014 - Camshaft Position Sensor - Priced Each - Monitors camshaft location - Genuine BMW - BMW MINI

Monitors camshaft location affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Two required per engine, may be replaced separately as needed.

Brand:
Genuine BMW - Corporate Logo
ES#:
34388
Mfg#:
13627525014
In Stock
9% off MSRP

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

$166.83

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

$151.53 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heater Return Line

ES#4772997 - 17127548230 - Heater Return Line - From the heater core to the expansion tank - Bremmen Parts - BMW

From the heater core to the expansion tank affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4772997
Mfg#:
17127548230
In Stock
ON SALE! SAVE 15%
$101.99

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

$86.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Tensioner Assembly

ES#4810167 - 11287563927 - Accessory Belt Tensioner Assembly - This is the main belt tensioner for A/C, Alternator, and power steering. - Bremmen Parts - BMW

This is the main belt tensioner for A/C, Alternator, and power steering. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4810167
Mfg#:
11287563927
In Stock
ON SALE! SAVE 17%
$69.99

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

$57.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 1 Post-Cat

ES#2580858 - 11787545074 - Rear Oxygen Sensor - Bank 1 Post-Cat - Fuel control and emissions control sensor - Bosch - BMW

Fuel control and emissions control sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2580858
Mfg#:
11787545074
In Stock
$228.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Inlet Pipe Upgrade - Stock Turbo

ES#4147114 - BW-MK3352V1 - Turbo Inlet Pipe Upgrade - Stock Turbo - Replace your plastic OEM inlet pipe on your N55 with a durable silicon inlet pipe! - MST Performance - BMW

Replace your plastic OEM inlet pipe on your N55 with a durable silicon inlet pipe! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
MST Performance - Corporate Logo
ES#:
4147114
Mfg#:
BW-MK3352V1
Ships in 8 Business Days
$360.99

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

$308.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit

ES#4660657 - D650-0002KT2 - Ignition Service Kit - Everything you need for your ignition service upgrade - featuring black Dinan ignition coils - Dinan - BMW

Everything you need for your ignition service upgrade - featuring black Dinan ignition coils Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Dinan - Corporate Logo
ES#:
4660657
Mfg#:
D650-0002KT2
In Stock
$310.99

This product was last offered at the strikethrough price on
03-23-2026

$306.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

F3X N55 Turner Motorsport Rear Muffler Delete Kit

ES#4338113 - 008727LA01 - F3X N55 Turner Motorsport Rear Muffler Delete Kit - Add an aggressive exhaust note to your F30 N55's stock exhaust system - Turner Motorsport - BMW
ECS Tuning recommends this product.

Add an aggressive exhaust note to your F30 N55's stock exhaust system affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4338113
Mfg#:
008727LA01
In Stock
ON SALE! SAVE 20%
$399.99

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

$319.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Filtered Air Intake Pipe

ES#2611393 - 13717602651 - Filtered Air Intake Pipe - Feeds air from the airbox to the turbocharger - Genuine BMW - BMW

Feeds air from the airbox to the turbocharger affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
2611393
Mfg#:
13717602651
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.

$174.97

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

$167.39 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

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Manufacturer names and/or part numbers are used only for identification purposes.

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