Which other parts do owners name in the same complaint?

Among the 763 owner complaints naming this part, water pump is named in 17% of them, more than any other part.

Other parts named in the same complaints. Water pump: 17%; Radiator: 13%; Head gasket: 6%.

Owners name the water pump most often in the same complaint, which is not proof that one caused the other. Ask the shop whether it checked the water pump too, so you are not quoted twice for one visit.

Source: NHTSA owner complaint files · file downloaded 2026-10-05

Data and chart by CalcScrape: Thermostat Replacement Cost Calculator