Thermostat Cover Gasket – Fits Johnson/Evinrude 6-8 HP (Replaces 329076/0329076)

$2.99 $4.00

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Product Details

This aftermarket Thermostat Cover Gasket – Fits Johnson/Evinrude 6-8 HP (Replaces 329076/0329076) provides a reliable seal for Johnson/Evinrude 6–8 HP 2-Stroke outboard engines from 1985–1988. It is engineered to prevent coolant leaks by fitting precisely between the thermostat housing and the cover.

It serves as a direct replacement for Johnson/Evinrude part numbers 329076 and 0329076 and is an aftermarket equivalent for Morse Controls 1668.

Installs between the thermostat housing and cover to ensure a tight seal.
This is a special order item, sourced upon request from our supplier network.
Also available in multi-packs for professional mechanics and service centers.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand	Part Number
Johnson/Evinrude	329076
Johnson/Evinrude	0329076
Morse Controls	1668

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.
Johnson/Evinrude	Outboards	6	2-Stroke	1985–1988	329076/0329076
Johnson/Evinrude	Outboards	8	2-Stroke	1985–1988	329076/0329076

Technical Specs

Product Type: Thermostat Cover Gasket
Installation: Between thermostat housing and cover
Housing Material: Paper/Composite
Housing Color: Brown/Tan
Dimensions: 5.13 in x 4.0 in x 1.13 in
Other Technical Attributes: Special Order Item

What’s in the Box

1 x Thermostat Cover Gasket (329076/0329076)

Installation Notes

Ensure the engine is off and cool. Disconnect the battery for safety.
Drain the engine coolant to a level below the thermostat housing.
Carefully remove the bolts securing the thermostat cover.
Remove the old cover and gasket. Note the orientation of the parts.
Thoroughly clean both the housing and cover mating surfaces to remove any old gasket material or corrosion.
Position the new gasket correctly on the housing.
Reinstall the thermostat cover and tighten the bolts in a crisscross pattern to the manufacturer's recommended torque specification.
Refill the cooling system, reconnect the battery, and start the engine, checking for any leaks around the housing.

Troubleshooting & FAQ

How do I know if the thermostat gasket is leaking?

Common signs of a failing thermostat gasket include visible coolant drips or residue around the thermostat housing, an unexplained drop in coolant levels, and potential engine overheating if the leak is significant.

Is this gasket compatible with my specific engine?

This gasket is designed for Johnson/Evinrude 6 HP and 8 HP 2-stroke outboard models made between 1985 and 1988. Always cross-reference the OEM part number (329076/0329076) and check the compatibility table to ensure a perfect fit.

Can I reuse my old gasket after an inspection?

No. Gaskets are single-use components designed to crush and create a seal. Once compressed, they will not provide a reliable seal if reused. Always install a new gasket when servicing the thermostat or housing.

What tools do I need for installation?

You will typically need a socket or wrench set to remove the housing bolts, a gasket scraper or plastic blade to clean the surfaces, and a torque wrench to ensure the bolts are tightened to the correct specification.

What does "Special Order Item" mean?

This indicates the part is not kept in our primary inventory and is ordered from a supplier once you place your order. This may add a few extra days to the total processing and shipping time.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost?

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Warranty & returns?

Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.

Safety & Important Info

Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
This is an aftermarket replacement, not an OEM component.
Professional installation is recommended for safety and performance.

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