Three-Bolt Pulley Required
This A-Premium water pump fits only models with:
- Three pulley mounting bolts
- Three-hole pump hub
- Approximately 2.17-inch hub pilot diameter
- Approximately 4.93-inch hub height
It is not compatible with a four-bolt water-pump pulley.
Do not count the bolts attaching the pump housing to the engine. Count the bolts holding the pulley to the water-pump hub. Counting the wrong bolts is an exciting way to discover that your Saturday repair is now a weekend-long parts-return exercise.
Replacement Part Numbers
This pump is marketed as a replacement or interchange for:
- Ford BR3E-8501-LA
- Ford BR3E-8501-PA
- Ford BR3Z-8501-J
- Ford BR3Z-8501-P
- Ford BR3Z-8501-R
- Ford BR3Z-8501-S
- Motorcraft PW-547
- Motorcraft PW-618
- Motorcraft PW-639
- Gates 43016
- 1253440
- SK6035203
Ford’s current BR3Z-8501-S water-pump listing identifies a three-bolt pulley flange and lists applications involving the 5.0L engine and 5.2L GT350/GT350R.
Interchange numbers should be used alongside the VIN and physical pump design. They are not a substitute for verifying the pulley flange.
Product Specifications
| Specification | Details |
|---|---|
| Brand | A-Premium |
| Product type | Mechanical engine water pump |
| Housing material | Cast aluminum |
| Impeller material | Plastic/composite |
| Impeller vanes | 8 |
| Impeller rotation | Standard |
| Pulley-hub holes | 3 |
| Drive system | Serpentine belt |
| Hub height | Approximately 4.93 inches |
| Hub pilot diameter | Approximately 2.17 inches |
| O-ring included | Yes |
| Warranty | One year, unlimited mileage |
Cast-Aluminum Housing
The cast-aluminum housing provides a rigid mounting structure while resisting corrosion from compatible engine coolant. Precision around the mounting flange, bearing bore, and coolant passages is necessary for proper alignment and sealing.
The new pump should sit flush against the engine without forcing or modifying the housing. If it does not, stop and compare it with the original component. A hammer is not a fitment verification tool, despite generations of driveway folklore.
Eight-Vane Composite Impeller
This pump uses an eight-vane plastic or composite impeller. Composite impellers are commonly used in modern cooling systems because they can offer:
- Reduced rotating mass
- Resistance to certain forms of corrosion
- Consistent molded vane geometry
- Lower load on the pump bearing
- Efficient coolant movement
A composite impeller is not automatically inferior to a metal one. Material quality, shaft attachment, vane design, balance, and manufacturing tolerances all affect pump performance.
How the Ford Coyote Water Pump Works
The serpentine belt turns the water-pump pulley, shaft, and impeller. The impeller moves coolant through the engine block, cylinder heads, heater circuit, and radiator.
Proper circulation helps:
- Remove heat from the aluminum cylinder heads
- Control cylinder and combustion-chamber temperature
- Stabilize oil and coolant temperatures
- Supply hot coolant to the cabin heater
- Protect the engine during towing or performance driving
- Prevent localized hot spots
The pump moves coolant; it does not create the cooling system’s operating pressure by itself. System pressure primarily develops as coolant temperature rises and is controlled by the pressure cap.
Symptoms of a Failing Ford 5.0L Water Pump
Common symptoms include:
- Coolant leaking from the pump
- Dried coolant residue around the housing
- Grinding or rumbling bearing noise
- Pulley wobble
- Serpentine-belt misalignment
- Rising engine temperature
- Temperature fluctuations
- Weak cabin heat
- Coolant odor after driving
- Repeatedly low coolant level
These symptoms can overlap with a thermostat fault, hose leak, radiator restriction, cooling-fan problem, or failed expansion-tank cap. Review our comparison of a bad thermostat versus a bad water pump before replacing components.
Our guide explaining how to find a coolant leak can also help confirm whether the pump is actually leaking.
Installation Recommendations
Water-pump replacement should begin only after the engine has cooled completely. Hot coolant can remain pressurized and cause serious burns.
General installation steps include:
- Verify the vehicle uses a three-bolt pulley.
- Disconnect the battery when directed by Ford service information.
- Drain the coolant into a suitable container.
- Remove any intake ducting or covers blocking access.
- Record the serpentine-belt routing.
- Loosen the pulley bolts before removing belt tension when appropriate.
- Remove the belt and water-pump pulley.
- Disconnect the necessary coolant hoses.
- Remove the original pump.
- Clean the engine’s sealing surface carefully.
- Compare the replacement pump with the original.
- Install the included O-ring in the correct position.
- Tighten all fasteners to Ford specifications.
- Reinstall the pulley and serpentine belt.
- Refill the cooling system with the specified coolant.
- Bleed trapped air using the correct service procedure.
- Pressure-test and inspect the system for leakage.
Procedures and torque specifications can vary by model year. Use service information for the exact F-150 or Mustang rather than relying on a generic online torque value.
Inspect These Parts During Replacement
Check the following components while the cooling system is open:
- Serpentine belt
- Automatic belt tensioner
- Idler pulleys
- Water-pump pulley
- Thermostat and housing
- Radiator hoses
- Expansion tank and pressure cap
- Radiator
- Electric cooling fans
- Coolant condition
If the removed pump failed internally or the coolant is contaminated, consult our guide on flushing a cooling system without damaging it.
Use the Correct Ford Coolant
Ford coolant specifications changed during the lengthy 2011–2023 application range. Do not assume that every Coyote-powered vehicle uses the same coolant simply because the engines share a displacement.
Follow the specification listed for the exact VIN and model year. Coolant color is not a reliable compatibility standard. Our guide to IAT, OAT and HOAT coolant chemistry explains the differences.
One-Year Unlimited-Mileage Guarantee
A-Premium advertises this pump with a one-year unlimited-mileage guarantee. Buyers should retain the purchase receipt and review the seller’s current warranty terms.
Confirm whether coverage includes:
- Replacement of the pump
- Return shipping
- Commercial vehicle use
- Installation labor
- Related cooling-system damage
- Failures caused by incorrect coolant or installation
Most parts warranties cover the component rather than labor or consequential engine damage.
Frequently Asked Questions
Does this water pump fit every 2011–2023 Ford F-150?
No. It fits selected F-150 models equipped with the 5.0L V8 and compatible three-bolt water-pump pulley. It does not fit unrelated EcoBoost, V6, or diesel engines.
Does it fit a 2011 Mustang GT?
Do not assume that it does. Many 2011 Mustang GT applications use a four-bolt pulley configuration. This pump requires a three-bolt flange and is more consistently cataloged for 2012-and-newer Mustangs.
Does this pump fit the Mustang Shelby GT500?
Not automatically. GT500 engines and cooling systems differ from GT, GT350, and GT350R applications. Verify the original part number before ordering.
Does it fit the 5.2L GT350 engine?
Ford catalog information associates the corresponding PW-639/BR3Z-8501-S three-bolt pump with the 5.2L GT350 and GT350R applications. Confirm the VIN and original pump configuration.
Is the pulley included?
The specifications describe the pump’s three-hole pulley hub but do not clearly state that a pulley is included. Unless the retail package explicitly says otherwise, plan to transfer the original compatible pulley.
Is the O-ring included?
Yes. The product specifications state that the required pump O-ring is included.
Is the impeller metal?
No. This version uses an eight-vane plastic or composite impeller.
Can a bad water pump cause overheating at highway speed?
Yes. Insufficient coolant flow, coolant loss, bearing failure, or impeller damage can cause overheating under load. A restricted radiator, thermostat problem, low coolant, or combustion leakage can cause similar symptoms. See our guide to diagnosing a vehicle that overheats while driving.
Final Verdict
The A-Premium three-bolt water pump is an affordable replacement option for properly verified Ford F-150, Mustang GT, Shelby GT350, Shelby GT350R, and Mach 1 applications using compatible 5.0L or 5.2L DOHC V8 engines.
Its cast-aluminum housing, eight-vane composite impeller, included O-ring, and one-year unlimited-mileage guarantee make it suitable for an OE-style cooling-system repair. The deciding factor is the pulley: inspect the original pump and confirm that it has a three-bolt flange before ordering.
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