Used in various applications on several Mercedes-Benz models
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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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5388746
Mfg#:
2782001300KT
Ships in 4 Business Days
$422.99
This product was last offered at the strikethrough price on 01-20-2026
Ensure a proper seal when installing a new water pump
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
Thermostat to Water Pump Seal Ring
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
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.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Price includes a refundable $51.73 core charge
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4687900
Mfg#:
278200050180KT
Ships in 4 Business Days
$472.99
This product was last offered at the strikethrough price on 01-06-2026
$423.99 USD
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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.
Lifetime Replacement
