S197Seller listing
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View listing at Fordpartsgiant; opens in a new tabS197 Mustang · Buyer's guide
2011-2014 Mustang GT 5.0L Water Pump, Thermostat and Cooling Leak Paths
2011-2014 Mustang GT 5.0L Coyote only; Boss 302, V6 and GT500 excluded unless VIN catalog confirms the exact component
Current seller options
WHERE TO BUY
Open an exact listing, then confirm fitment, stock, price, and shipping with the seller before ordering.
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S197Seller listing
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View listing at Ford OEM Parts Online; opens in a new tabS197Seller listing
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View listing at AmericanMuscle; opens in a new tabS197Seller listing
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What you need to know
2011-2014 Mustang GT 5.0L only. Separate pump, thermostat, hose, reservoir, radiator, fan, oil-cooler and pressure-test diagnosis before ordering. V6, GT500 and unverified Boss-specific plumbing are excluded.
OEM numbers
Water pump BR3Z-8501-HMotorcraft PW-535checked catalog replacement from BR3Z-8501-C. Thermostat BR3Z-8575-GMotorcraft RT-1258.Supersession
Ford catalog shows BR3Z-8501-C replaced by BR3Z-8501-H. No V6 water-pump interchange is implied.
Fitment
2011-2014 Mustang GT 5.0L only. Separate pump, thermostat, hose, reservoir, radiator, fan, oil-cooler and pressure-test diagnosis before ordering. V6, GT500 and unverified Boss-specific plumbing are excluded.
Aftermarket options
Checked OEM/Motorcraft pump and thermostat listings plus specialist replacement paths. A catalog or cart does not prove shelf stock.
Before you buy
GT 5.0L only. BR3Z-8501-H is not evidence for the 3.7L V6 pump. Pressure-test the system and identify the actual leak before replacing a pump or thermostat. Ship-time and cart language are not guaranteed inventory.
Research and fitment sources
Supersede reviewed 7 unique research sources for this guide. 5 also appear above as a seller or official action and are not repeated here; 2 additional citations follow.
Research last verified .