Ford F-350 Coolant Leak — Where It Usually Comes From, and What It Costs

Based on real repair records · last updated October 20, 2026
30.9%
of Ford F-350 visits for a coolant leak involve Water Pump — typically $399 – $745 on this vehicle when it's the only fix
Computed from real Ford F-350 repair visits where the customer reported a coolant leak.

Water Pump leads on the Ford F-350 as it does across all vehicles, but the mix is different: Gasket / Seal shows up in 24.6% of Ford F-350 visits against 15.7% for all vehicles. The table below shows each fix for this vehicle next to the all-vehicle share, with what it costs on the Ford F-350.

What it actually turns out to be on the Ford F-350

The fix involvedFord F-350*All vehicles*Typical cost†
Water Pump30.9%29.5%$399 – $745
Radiator24.6%28.1%$298 – $1,105
Gasket / Seal24.6%15.7%$164 – $674
Thermostat23%19.7%$207 – $471
Hose16.7%18.2%$154 – $547
Radiator Hose14.1%10%$236 – $588
Pipe / Tube2.3%2.6%$101 – $608
Other, rarer causessmaller shares—varies

*Share of visits whose repair involved this part, among visits for this complaint that ended in a parts repair. Combined repairs count toward each part involved, so shares overlap and don't add up to 100%.
†Middle half of real Ford F-350 invoices (25th–75th percentile) when this was the only fix, parts + labor; rows marked "all vehicles" use all vehicle types.

Real repair reports

Recent, paid Ford F-350 visits for this complaint — the words as the owner said them, and what it turned out to be.

Ford F-350 owners said

“customer states vehicle is leaking coolant”
2004 Ford F-350 · 174,691 mi · $589 · Feb 2026
turned out: Hose
“check for a coolant leak”
2013 Ford F-350 · 144,334 mi · $1,328 · Feb 2026
turned out: Radiator
“Customer states that there is a coolant leak. check and advise”
2016 Ford F-350 · 43,287 mi · $2,302 · Jan 2026
turned out: Pump + more
“Coolant leak tow in”
2018 Ford F-350 · 48,489 mi · $1,870 · Apr 2025
turned out: Gasket / Seal + more
“Ck water pump for leak”
2002 Ford F-350 · 185,479 mi · $1,400 · Mar 2024
turned out: Gasket / Seal + more

More on this problem and this vehicle

Take this to the shop

The FixDozer Diagnosis Brief for this complaint puts the all-vehicle odds on one printable sheet. Bring it with this page: the table above shows how the Ford F-350 differs.

Download the Diagnosis Brief (PDF, all vehicles)

View it online · Narrow it down step by step

Where these numbers come from. FixDozer computes statistics from a large, continuously updated body of real-world US automotive repair records.
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