Gasket – Evinrude/Johnson 150-175hp V-6 60-Degree (Replaces 0344347)

$99.99

Shipping calculated at checkout.

Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This starboard intake manifold Gasket – Evinrude/Johnson 150-175hp V-6 60-Degree (Replaces 0344347) is specifically engineered for Evinrude/Johnson V-6 60-degree Eagle series outboard engines manufactured from 1991 and onward.

This component serves as a direct replacement for OEM part numbers 0344347 and 0336227, and is also cross-referenced with aftermarket numbers 334347 and 36580.

Installs on the starboard (right-hand) side of the engine block.
Forms a crucial seal between the intake manifold and the cylinder block.
Designed to meet or exceed original equipment specifications for fit and function.

Part Number Matrix

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

Part Number	Notes
0336227	Primary OEM Replacement
0344347	Superseded by 0336227
334347	Interchange Number
36580	Interchange Number

Engine & Model Compatibility

Confirm your engine model and year in the table below to ensure correct fitment.

Brand	Model	Rated HP	Stroke	Years	OEM Part No.	Notes
Johnson/Evinrude	V-6 60 degree Eagle	150	2-Stroke	1991–Up	0336227	Replaces 0344347
Johnson/Evinrude	V-6 60 degree Eagle	175	2-Stroke	1991–Up	0336227	Replaces 0344347

Technical Specs

Product Type: Gasket
Installation Location: Manifold to Block - Starboard Side
Product Dimensions: 37.0 x 12.5 x 0.2 (L x W x H)
Technical Note: Sits between the intake manifold and cylinder block to prevent air and fuel leaks.

What’s in the Box

1 x Gasket, Manifold To Block - Stbd (Replaces 0336227/0344347)

Installation Notes

Ensure the engine is off and cool, and disconnect the battery as a safety precaution.
Remove any components that obstruct access to the starboard intake manifold.
Carefully unbolt and remove the intake manifold from the cylinder block.
Remove the old gasket completely. Thoroughly clean and dry both mating surfaces, ensuring they are free of old gasket material, oil, and debris.
Position the new gasket correctly onto the engine block. No sealant is typically required, but consult your service manual for specifics.
Re-install the intake manifold. Tighten the mounting bolts in the sequence and to the torque values specified by the engine manufacturer to ensure an even seal.

Troubleshooting & FAQ

How do I know if this is the correct gasket for my engine?

First, verify your engine's brand, model, HP, and year fall within the ranges listed in the compatibility table. Second, cross-reference your existing part number with those in the Part Number Matrix. Finally, visually compare our product images with your original part before installation.

What are the common signs of a failed intake manifold gasket?

Symptoms of a faulty gasket include a rough or unstable idle, engine misfires, reduced power, overheating, or visible coolant/fuel leaks around the intake manifold area.

Do I need to use sealant with this gasket?

Generally, this type of gasket is designed for a dry fit. However, we strongly recommend consulting your specific engine's official service manual, as it may require a small amount of sealant in certain areas.

What is the difference between the starboard and port side gaskets?

Starboard (right) and Port (left) gaskets are mirror images of each other and are not interchangeable. This listing is for the starboard side only. Ensure you are ordering the correct side for your repair needs.

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.

About Sea Sierra

Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.