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 3 Business Days
$422.99
This product was last offered at the strikethrough price on 01-20-2026
Thermostat to Water Pump Seal Ring
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
Includes Pulley, Gaskets, and Plugs - Price includes a $61.10 refundable core charge.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
5388740
Mfg#:
157200010764KT
Ships in 2 Business Days
$786.99
This product was last offered at the strikethrough price on 01-06-2026
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!
Keep your AMG's turbochargers and heater core perfectly cooled. This Genuine Mercedes-Benz auxiliary water pump ensures optimal coolant circulation under high-load and low-speed conditions, protecting your M157 V8 from dangerous localized overheating.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
2559179
Mfg#:
0005002486
Ships in 3 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.
$400.00
This product was last offered at the strikethrough price on 07-02-2026
Includes Pulley, Gaskets, and Plugs
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:
ES#:
4344479
Mfg#:
1572000107
Special Order: No Guaranteed ETA
$296.99 USD
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
