Name: Barr MerCruiser 330 340 Inboard Upper Thermostat Housing 29-97428
Brand: RECAMBIOS
SKU: BAMC29-97428
Price: 77.4 GBP
Availability: InStock

Barr MerCruiser 330 340 Inboard Upper Thermostat Housing 29-97428

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£77.40

Tax included.

Barr MerCruiser 330 / 340 Upper Housing

GM Big-Block Inboard | MC-29-97428

Barr Marine aftermarket upper thermostat housing for legacy MerCruiser 330 and 340 inboard big-block applications using the MC-29-97428 casting.

FITMENT CHECK: This is the upper housing for the 330/340 inboard arrangement. It differs from 29-97429 (230/260) and from upper cover 29-47442 used on other big-block layouts.

Key Features

Upper thermostat housing
For MerCruiser 330 and 340 inboard models
GM big-block application
Barr Marine aftermarket casting
Housing only

Technical Specs

Part type	Upper thermostat housing
Verified models	330 / 340 Inboard
Engine family	GM big-block V8
Thermostat included	No
SKU	BAMC29-97428

Compatibility / Fitment Guide

Engine / model	Verified application	Fitment checks
MerCruiser 330 Inboard	Legacy centre-riser application using 29-97428	Confirm lower housing MC-29-90736 arrangement.
MerCruiser 340 Inboard	Legacy centre-riser application using the same upper casting	Use specified 27-90556 gasket family.
Exclusion	230 / 260 Inboard	These use upper housing 29-97429.
Exclusion	Other 330/454 Magnum housings using MC-29-47442	Compare casting and ports.

Compare casting, hose-port arrangement, upper/lower interface and engine serial-number parts diagram.

Part Number Cross Reference

Barr Marine	MC-29-97428
Upper gasket application	MC47-27-90556
Typical lower housing	MC-29-90736
4Boats SKU	BAMC29-97428

Aftermarket replacement; manufacturer references are used for identification only.

Frequently Asked Questions

Does it fit a 260?
No. The 230/260 family uses 29-97429.

Is this the complete thermostat assembly?
No. It is the upper housing only.

Can I select it by horsepower?
No. Confirm the exact 330/340 inboard housing diagram.

Installation note: Clean mating faces, replace gaskets/O-rings and confirm unobstructed coolant flow before running the engine.

For the products under £150 the shipping is £6.99.

Free delivery for most items over £150.

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Barr MerCruiser 330 340 Inboard Upper Thermostat Housing 29-97428