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2016 Mercedes Benz CLS550 4Matic Sedan 218.391 V8 4.6L

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Your Vehicle 2016 Mercedes Benz CLS550 4Matic Sedan 218.391 V8 4.6L
Your Vehicle 2016 Mercedes Benz CLS550 4Matic Sedan 218.391 V8 4.6L
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2016 Mercedes Benz CLS550 4Matic Sedan 218.391 V8 4.6L Water Pumps & Parts

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M278 / M157 Turbocharger Cooling Lines - Set

ES#5388746 - 2782001300KT - M278 / M157 Turbocharger Cooling Lines - Set - For M157 and M278 engines, the coolant lines can become brittle and fail over time. Replacing them during water pump service is a smart preventative measure to avoid future leaks or damage. - Genuine Mercedes Benz - Mercedes Benz

For M157 and M278 engines, the coolant lines can become brittle and fail over time. Replacing them during water pump service is a smart preventative measure to avoid future leaks or damage.

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
5388746
Mfg#:
2782001300KT
Ships in 3 Business Days
$422.99

This product was last offered at the strikethrough price on
01-20-2026

$390.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Plug - Priced Each

ES#2585896 - 2782010103 - Water Pump Plug - Priced Each - For your M278 / M157 Water Pump - Two (2) Required Per Vehicle - Genuine Mercedes Benz - Mercedes Benz

For your M278 / M157 Water Pump - Two (2) Required Per Vehicle

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
2585896
Mfg#:
2782010103
In Stock
ON SALE! SAVE 10%
$12.99

This product was last offered at the strikethrough price on
06-25-2026

$11.63 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing O-Ring

ES#3445171 - 022997644564 - Thermostat Housing O-Ring - Thermostat to Radiator Hose - Lower - Genuine Mercedes Benz - Mercedes Benz

Thermostat to Radiator Hose - Lower

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
3445171
Mfg#:
022997644564
Ships in 2 Business Days
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing O-Ring

ES#2090589 - 2782010280 - Thermostat Housing O-Ring - Thermostat to Water Pump Seal Ring - Genuine Mercedes Benz - Mercedes Benz

Thermostat to Water Pump Seal Ring

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
2090589
Mfg#:
2782010280
Ships in 3 Business Days
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Screw - Priced Each

ES#1599808 - 000000001433 - Screw - Priced Each - M8x80 - Genuine Mercedes Benz - Mercedes Benz

M8x80

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1599808
Mfg#:
000000001433
Ships in 2 Business Days
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Hose Detent Spring

ES#1610775 - 0009931202 - Radiator Hose Detent Spring - Secures Radiator Hose Inside Radiator - Genuine Mercedes Benz - Mercedes Benz

Secures Radiator Hose Inside Radiator

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
1610775
Mfg#:
0009931202
In Stock
ON SALE! SAVE 20%
$4.99

This product was last offered at the strikethrough price on
06-25-2026

$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water Pump Plug - Priced Each

For your M278 / M157 Water Pump - Two (2) Required Per Vehicle

Brand:
Bapmic - Corporate Logo
ES#:
5388741
Mfg#:
2782010103
In Stock at Vendor
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing O-Ring

Thermostat to Water Pump Seal Ring 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5388742
Mfg#:
2782010280
In Stock at Vendor
$3.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Housing O-Ring

Thermostat to Radiator Hose - Outer

Brand:
Victor Reinz - Corporate Logo
ES#:
5388743
Mfg#:
0229976445
In Stock at Vendor
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

M278 / M157 Turbocharger Cooling Lines - Set

ES#5388747 - 2782001300KT1 - M278 / M157 Turbocharger Cooling Lines - Set - For M157 and M278 engines, the coolant lines can become brittle and fail over time. Replacing them during water pump service is a smart preventative measure to avoid future leaks or damage. - Assembled By ECS - Mercedes Benz

For M157 and M278 engines, the coolant lines can become brittle and fail over time. Replacing them during water pump service is a smart preventative measure to avoid future leaks or damage. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
5388747
Mfg#:
2782001300KT1
Ships in 3 Business Days
$279.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Remanufactured Engine Water Pump

Price includes a refundable $51.73 core charge

Brand:
Genuine Mercedes Benz - Corporate Logo
ES#:
4687900
Mfg#:
278200050180KT
Ships in 4 Business Days
$424.99

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

$423.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Water Pumps & Parts

If your engine is getting hot at idle or even driving around, your water pump could be on its way out. A sure sign of failure is coolant seepage around the water pump housing. Replace your faulty water pump with a genuine water pump or quality aftermarket water pump from these trusted suppliers.

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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