Description
Genuine Thermostat Housing for the 2021–2025 Ford F-150 with the 5.0L Coyote V8
This is a new, genuine Ford thermostat housing with OEM part number ML3Z-8A586-B, engineered for the 5.0L Coyote V8 engine in the 2021–2025 Ford F-150. A thermostat stuck open causes slow warm-up and poor heat; stuck closed, it overheats the engine. The genuine part opens at the factory temperature this engine’s management expects. Mason’s Auto Store sells it 32% below the manufacturer’s suggested retail price and ships it across the USA from our Battle Creek, Michigan warehouse.
Catalog fitment notes: Includes gaskets, housing and thermostat. 5.0L with dual alternator / power converter. F-150.
Specifications
| Part type | Thermostat Housing |
|---|---|
| OEM part number | ML3Z-8A586-B |
| Brand | Ford Genuine (Motorcraft) |
| Engine | 5.0L Coyote V8 |
| Fits | 2021–2025 Ford F-150 |
| Condition | New OEM (genuine factory part) |
| Warranty | 12 months (manufacturer parts warranty) |
Will it fit my Ford F-150?
Engine, trim, drivetrain and production date all affect the correct part number. Confirm your engine on the emissions label under the hood or from the 8th character of your VIN, compare the OEM number ML3Z-8A586-B with your old part, or add your 17-digit VIN at checkout — we verify fitment for free before shipping. Shops and fleets can send a bulk inquiry for one combined quote.
Why buy from Mason’s
- Family parts business serving drivers since 1936
- Genuine OEM part number and engine shown on every listing
- Pay by card, Afterpay, Zelle, Cash App or bank transfer — ships once payment is confirmed
- Optional shipping insurance and 30-day returns on unused parts
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