WP‑547 Water Pump – Ford 302 / 351W V8 (Reverse‑Rotation, 1977–1980)
Description:
WP‑547 —
WP‑547 is a mechanical water pump used on 1975–1980 Ford, Mercury, and Lincoln 302 / 351W small‑block V8 engines, specifically the reverse‑rotation variant used with certain serpentine and smog‑pump configurations. It’s closely related to WP‑541 but differs in hub height, inlet orientation, and rotation direction.
This is a desirable pump for Windsor‑platform restorations, especially on late‑70s emissions‑era vehicles.
🔧 Specifications & Dimensions
| Attribute | Value |
|---|---|
| Part Number | WP‑547 / AW547 / PW547 |
| Type | Mechanical water pump |
| Rotation Direction | Reverse (counter‑clockwise) |
| Housing Material | Cast iron |
| Impeller Material | Stamped steel |
| Hub Height | ~5.50–5.60 inches |
| Inlet Size | 1.75" |
| Pulley | Not included |
| Gasket | Usually included |
| Country of Origin | USA / Mexico / China (varies by brand) |
| Shipping Weight | ~7–8 lbs |
| Box Dimensions | Approx. 10" × 8" × 6" |
🚗 Verified Fitment Chart
(Ford Windsor small‑block V8 — reverse‑rotation applications)
| Make | Model | Engine | Years |
|---|---|---|---|
| Ford | F‑100 / F‑150 | 302 / 351W | 1977–1980 |
| Ford | Bronco | 302 / 351W | 1977–1979 |
| Ford | LTD | 302 / 351W | 1977–1979 |
| Ford | Thunderbird | 302 / 351W | 1977–1979 |
| Mercury | Cougar | 302 / 351W | 1977–1979 |
| Lincoln | Versailles | 302 V8 | 1977–1980 |
Notes:
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WP‑547 is the reverse‑rotation counterpart to WP‑541.
-
Used on vehicles equipped with smog‑pump / air‑pump belt routing requiring reverse rotation.
-
Not interchangeable with standard‑rotation pumps.
🔁 Cross‑References
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Motorcraft PW547
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Airtex AW547
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Gates 43041
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GMB 125‑1420
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ASC WP‑547
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ACDelco 252‑547