Exhaust Manifold Gasket – Fits Johnson/Evinrude 65-140 HP Engines (Replaces 317955)

$18.99 $30.00

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Product Details

This aftermarket Exhaust Manifold Gasket is designed for a precise fit on Johnson/Evinrude 65–140 HP V4 2-Stroke outboard engines, covering models from the 1970s through 1998. It ensures a proper seal between the exhaust manifold and the powerhead, preventing leaks and maintaining engine performance.

It serves as a direct replacement for Johnson/Evinrude part number 317955 / 0317955, OMC 317955, and interchange part number 323469 / 0323469.

Engineered for direct OEM-level replacement and fit.
Designed for use in gasoline marine outboard engines.
Comes complete with four gaskets for a full service.

Part Number Matrix

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

Brand	Part Number
Johnson/Evinrude	317955
Johnson/Evinrude	0317955
OMC	317955
Johnson/Evinrude	323469
Johnson/Evinrude	0323469

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This gasket set is designed for various Johnson and Evinrude V4 outboards. Please verify your specific model and part number before ordering.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.
Johnson/Evinrude	Various V4 Models	65–140	2-Stroke	1970s–1998	317955

Technical Specs

Product Type: Exhaust Manifold Gasket
Installation: Direct OEM replacement
Fuel Type: Gasoline
Connection: Exhaust manifold to powerhead
Dimensions: 28.0 x 19.0 x 0.5 cm
Weight: 0.45 kg (1 lb) total package
Fitting Type: Gasket
Warranty: 90-Day Warranty (from Max Marine Outlet)
Other Attributes: Sold as a pack of 4 gaskets

What’s in the Box

4 x Exhaust Manifold Gasket (Replaces 317955/0317955)

Installation Notes

Ensure the engine is completely cool and the battery is disconnected.
Carefully remove the exhaust manifold cover and the old gasket material.
Thoroughly clean the mating surfaces on both the powerhead and the exhaust manifold. Ensure they are free of debris, corrosion, and old gasket residue.
Position the new gasket, aligning it with the bolt holes. Do not use sealant unless specified by the engine manufacturer.
Reinstall the exhaust manifold and tighten the bolts in the sequence and to the torque specifications recommended by the manufacturer.
Start the engine and carefully inspect for any signs of exhaust leaks around the manifold.

Troubleshooting & FAQ

How do I confirm this fits my specific engine model?

This gasket fits a wide range of Johnson/Evinrude V4 engines from 65-140 HP (1970s-1998). The best method for confirmation is to cross-reference your engine's original part number with the numbers listed in our Part Number Matrix: 317955, 0317955, 323469, and 0323469.

What are the signs of a failing exhaust manifold gasket?

Common symptoms include a noticeable exhaust leak (hissing or ticking sound from the engine), reduced engine performance, water or soot streaks around the manifold connection, and overheating of the engine compartment.

Is this a single gasket or a pack?

This product is sold as a value pack containing four gaskets, as indicated in the "What's in the Box" section.

Do I need to use gasket sealant during installation?

In most cases, these gaskets are designed to be installed dry. You should not use sealant unless your engine's official service manual explicitly recommends it for this specific application.

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 90-day 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.

About Sea Sierra

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Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

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