Barr OMC 3.0L 4.1L Upper Thermostat Housing 29-908216
BAOMC29-908216
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Regular price£139.69
/
Tax included.
OMC Upper Thermostat Housing
29-908216 | GM 3.0L and selected 4.1L
Aftermarket Barr-style upper thermostat housing for specified OMC four- and six-cylinder sterndrive cooling systems.
VERIFY BEFORE ORDERING: Applications and port layouts vary. Match the removed housing, OMC/Barr reference and engine configuration; this is not a Bombardier PWC housing.
Key Features
- Upper thermostat housing
- OMC GM 3.0L four-cylinder coverage
- Selected OMC 4.1L / 250 six-cylinder coverage
- Aftermarket replacement
- Thermostat kit normally ordered separately
Technical Specs
| Part type | Upper thermostat housing |
| Engine families | OMC 3.0L I4; selected 4.1L I6 |
| Supply | Housing only unless pictured otherwise |
| 4Boats SKU | BAOMC29-908216 |
Compatibility / Fitment Guide
| Application | Verified fitment | Checks / exclusions |
|---|---|---|
| OMC GM 3.0L | Four-cylinder Chevy/GM sterndrive engines using 29-908216 | If required, Sierra thermostat kit 18-3653 is commonly paired. |
| OMC 4.1L / 250 | Selected 6-cylinder 165hp applications catalogued for the same upper housing | Verify casting and ports; not every 4.1L layout is identical. |
| Physical match | Same bolt pattern, neck angle, hose ports and threaded fittings | Engine displacement alone is insufficient. |
Final fitment check: Compare OMC/Barr 29-908216 and the original casting before purchase.
Part Number Cross Reference
| Barr / OMC aftermarket | OMC-29-908216; 29-908216 |
| Related Sierra thermostat kit | 18-3653 (verify engine) |
| 4Boats SKU | BAOMC29-908216 |
Frequently Asked Questions
Is this OEM OMC?
No. It is an aftermarket housing.
Does it include the thermostat?
Do not assume so; verify the product photo.
Will it fit every OMC 3.0L?
Confirm the original housing and ports.
Transfer only serviceable fittings and install with the correct new gasket.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.