Recmar MerCruiser V8 140°F Thermostat Kit 807252Q3 18-3646
REC807252Q3
- Dispatched in 2-3 days
- 30 Day Return Policy
- Low stock - 3 items left
- Backordered, shipping soon
No reviews
Our stock levels are dynamic and can change frequently. If a product appears to be in stock, it may have already sold out. Please contact us if you have any questions about availability. Thank you for your understanding.
Regular price£41.48
/
Tax included.
MerCruiser 140°F Thermostat Kit
Early Ford/GM V8 standard cooling | 807252Q3
Aftermarket Recmar 140°F thermostat kit corresponding to MerCruiser 807252Q3 for specified early V8 and high-performance closed-cooling applications.
VERIFY BEFORE ORDERING: This kit is not for every MerCruiser engine. Confirm cooling type, engine manufacturer and production year; 807252Q4/Q5 kits have different contents/applications.
Key Features
- 140°F / approximately 60°C thermostat kit
- 1982-and-earlier Ford and GM V8 standard-cooling applications
- Selected pre-1997 high-performance closed-cooling engines
- Aftermarket Recmar replacement
- Cross-reference Sierra 18-3646
Technical Specs
| Part type | Thermostat and gasket service kit |
| Opening rating | 140°F / approx. 60°C |
| Engine family | Specified MerCruiser V8 |
| 4Boats SKU | REC807252Q3 |
Compatibility / Fitment Guide
| Engine group | Verified models | Checks / quantity |
|---|---|---|
| Ford / GM V8 MerCruiser | 1982 and earlier engines with standard/raw-water cooling | Verify housing and exact gasket set. |
| High-performance MerCruiser | 1996 and earlier models with closed cooling where 807252Q3 is specified | Do not generalise to all closed-cooled engines. |
| Ford V8 kit layout | 807252Q3 kit contents include Ford-specific gasket selection in catalogues | Chevrolet V6/V8 layouts may require 807252Q4 instead. |
Final fitment check: Match 807252Q3 or Sierra 18-3646 and confirm manufacturer, year and cooling system.
Part Number Cross Reference
| MerCruiser | 807252Q3; 807252T6 |
| Sierra | 18-3646 |
| GLM / Mallory | GLM 13380; Mallory 9-43151 |
| Recmar / 4Boats | REC807252Q3 |
Frequently Asked Questions
Is this the 160°F kit?
No. This listing is the 140°F kit.
Does it fit all V6/V8 MerCruisers?
No. The verified application is specific to early V8 and selected high-performance layouts.
Is it genuine Quicksilver?
No. It is aftermarket Recmar.
Never change thermostat temperature or cooling-layout gasket selection without manufacturer confirmation.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
