Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply
affirm financing terms & conditions

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

2018 Mercedes Benz CLS550 Base Sedan 218.373 V8 4.6L

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
affirm financing terms & conditions
garage-red
Your Vehicle 2018 Mercedes Benz CLS550 Base Sedan 218.373 V8 4.6L
Your Vehicle 2018 Mercedes Benz CLS550 Base Sedan 218.373 V8 4.6L
Change Clear

2018 Mercedes Benz CLS550 Base Sedan 218.373 V8 4.6L Engine Parts & Accessories

Sort By
Filter By
Return to Top

Negative Battery Terminal Cable

Includes Sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
2845899
Mfg#:
0009056702
Ships in 4 Business Days
7% off MSRP

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

$160.00

This product was last offered at the strikethrough price on
01-06-2026

$148.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

M157 / M278 Valve Cover Reseal Kit

ES#5456803 - M157M278RSKT3 - M157 / M278 Valve Cover Reseal Kit - Reseal your leaking M157 or M278 valve covers the right way with genuine liquid sealant, new aluminum hardware, and high pressure fuel pump seals. - Genuine Mercedes Benz - Mercedes Benz

Reseal your leaking M157 or M278 valve covers the right way with genuine liquid sealant, new aluminum hardware, and high pressure fuel pump seals. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
5456803
Mfg#:
M157M278RSKT3
Ships in 7 Business Days
$463.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete M157 / M278 Engine Cylinder Head Valve Cover & Front Upper Timing Covers Reseal Kit

ES#5456410 - m157m278rsKT - Complete M157 / M278 Engine Cylinder Head Valve Cover & Front Upper Timing Covers Reseal Kit - Includes Genuine Mercedes-Benz Sealant, all new hardware, camshaft adjuster seals for a perfect reseal. - Genuine Mercedes Benz - Mercedes Benz

Includes Genuine Mercedes-Benz Sealant, all new hardware, camshaft adjuster seals for a perfect reseal. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
5456410
Mfg#:
M157M278RSKT
Ships in 7 Business Days
$800.99

This product was last offered at the strikethrough price on
04-14-2026

$764.00 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

UPD High Flow Cold Air Induction Kit - M278

ES#5470454 - MBCABK278 - UPD High Flow Cold Air Induction Kit - M278 - Unlock hidden M157 power with the UPD Cold Air Induction Kit - OEM style fitment with dyno-proven gains of up to 25WHP! - Ultimate Performance And Design - Mercedes Benz

Unlock hidden M157 power with the UPD Cold Air Induction Kit - OEM style fitment with dyno-proven gains of up to 25WHP! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Ultimate Performance And Design - Corporate Logo
ES#:
5470454
Mfg#:
MBCABK278
Ships in 7 Business Days
$450.00 USD
This product is lifetime replacement eligible Lifetime Replacement

M157 / M278 Oil Filter Housing Assembly

Includes cap, filter and gasket affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5388749
Mfg#:
2781800710
Ships in 7 Business Days
Auto Notify
ON SALE! SAVE 55%
$199.99

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

$89.75 USD
Free Shipping
on orders $49 and up

M157/M278 Cylinder Head Bolt - Set Of 20

M157 / M278 Head Bolt - One Time Use. A full set to secure your cylinder head. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5388726
Mfg#:
278016016964KT1
Ships on Jul 28, 2026
$291.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Bolt - Set Of 10 (11x173mm)

M157 / M278 Head Bolt - One Time Use - Twenty (20) Required Per Engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5388723
Mfg#:
278016016964
Special Order: No Guaranteed ETA
$145.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Pump Assembly

Position - Right affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5375044
Mfg#:
2184700094
Ships on Aug 10, 2026
Auto Notify
ON SALE! SAVE 20%
$352.99

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

$282.33 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valve Stem Seal - Priced Each

ES#2864921 - 0000534658 - Valve Stem Seal - Priced Each - For repair or changing valve in the cylinder head - Febi - Mercedes Benz

For repair or changing valve in the cylinder head 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#:
2864921
Mfg#:
0000534658
Special Order: No Guaranteed ETA
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idler Pulley - Priced Each

ES#4344481 - 2782020519 - Idler Pulley - Priced Each - Upper Grooved Pulley - Febi - Mercedes Benz

Upper Grooved Pulley 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#:
4344481
Mfg#:
2782020519
Special Order: No Guaranteed ETA
$25.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Engine Oil Filter Kit - Priced Each

ES#2883902 - 2781800009 - Engine Oil Filter Kit - Priced Each - Includes all o-rings needed for installation. For M133, M152, M157, M176, M177, M178 & M278 Engine applications. - Vaico - Mercedes Benz

Includes all o-rings needed for installation. For M133, M152, M157, M176, M177, M178 & M278 Engine applications. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Please check filter before ordering, vehicle may be equipped with 2761800009 or 2781800009

Brand:
Vaico - Corporate Logo
ES#:
2883902
Mfg#:
2781800009
Special Order: No Guaranteed ETA
$13.99 USD

Coolant Expansion Tank

ES#4684127 - 2045000949 - Coolant Expansion Tank - does not include level sensor or lid - Vaico - Mercedes Benz

does not include level sensor or lid affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4684127
Mfg#:
2045000949
Special Order: No Guaranteed ETA
$122.99 USD

Camshaft Adjuster - Priced Each

ES#4684399 - 2780504900 - Camshaft Adjuster - Priced Each - Intake Side - Right - Vaico - Mercedes Benz

Intake Side - Right affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4684399
Mfg#:
2780504900
Special Order: No Guaranteed ETA
$1002.99

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

$928.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exhaust Camshaft Adjuster - Priced Each

ES#4684400 - 2780505200 - Exhaust Camshaft Adjuster - Priced Each - Exhaust Side - Left - Vaico - Mercedes Benz

Exhaust Side - Left affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4684400
Mfg#:
2780505200
Special Order: No Guaranteed ETA
$926.99 USD

Rear Main Seal Retainer - With Seal

ES#4684378 - 2730100814 - Rear Main Seal Retainer - With Seal - Transmission End - Vaico - Mercedes Benz

Transmission End affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4684378
Mfg#:
2730100814
Special Order: No Guaranteed ETA
$62.99 USD
Free Shipping
on orders $49 and up

Turbocharger Coolant Line

ES#4900177 - 2782000900 - Turbocharger Coolant Line - To Turbocharger (Feed) - Left - Vaico - Mercedes Benz

To Turbocharger (Feed) - Left affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4900177
Mfg#:
2782000900
Special Order: No Guaranteed ETA
$34.99 USD
Free Shipping
on orders $49 and up

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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings