Barr OMC 3.0L 4.1L Upper Thermostat Housing 29-908216
Barr OMC 3.0L 4.1L Upper Thermostat Housing 29-908216

Barr OMC 3.0L 4.1L Upper Thermostat Housing 29-908216

BAOMC29-908216

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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£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.

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