SKU: 51581813098

Head and Cover Gasket Set – Fits Johnson/Evinrude 18-35 HP Outboards (Replaces 765012, 327674)

Sale price$26.10 Regular price$29.00
Save 10%

Pay in installments of $7.25 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Head and Cover Gasket Set – Fits Johnson/Evinrude 18-35 HP Outboards (Replaces 765012, 327674)Head and Cover Gasket Set Fits Johnson Evinrude 18 35 HP Outboards This head and cover gasket set is designed for Johnson Evinrude 2 stroke outboard engines in the 18 35 HP range manufactured between 1979 and 2001. It is manufactured from OEM spec materials to ensure a reliable, direct replacement fit. This kit provides direct replacements for Johnson Evinrude part numbers 327674, 324324, 329419, and 765012, along with other aftermarket equivalents.

Head and Cover Gasket Set – Fits Johnson/Evinrude 18-35 HP Outboards

This head and cover gasket set is designed for Johnson/Evinrude 2-stroke outboard engines in the 18-35 HP range manufactured between 1979 and 2001. It is manufactured from OEM-spec materials to ensure a reliable, direct replacement fit.

This kit provides direct replacements for Johnson/Evinrude part numbers 327674, 324324, 329419, and 765012, along with other aftermarket equivalents.

  • Engine Compatibility: Fits Johnson/Evinrude 18, 20, 25, 28, 30, and 35 HP 2-stroke models.
  • Installation Type: Direct OEM replacement.
  • Package Includes: 1x Head Gasket and 1x Water Cover Gasket.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number
Johnson/Evinrude 765012
Johnson/Evinrude 327674
Johnson/Evinrude 324324
Johnson/Evinrude 329419
Sierra 18-3899
Sierra 18-3803
GLM 34570
GLM 33700
Mallory 9-63830

Compatible Engine Models

Confirm your engine model/year in the table below. For Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson/Evinrude Serial Number Guide.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Johnson/Evinrude Various 18 2-Stroke 1995-2001 765012, 327674
Johnson/Evinrude Various 20 2-Stroke 1985-1997 765012, 327674
Johnson/Evinrude Various 25 2-Stroke 1979-2005 765012, 327674
Johnson/Evinrude Various 25C 2-Stroke 1997-2005 765012, 327674 Commercial models
Johnson/Evinrude Various 28 2-Stroke 1987-1996 765012, 327674
Johnson/Evinrude Various 30 2-Stroke 1984-2005 765012, 327674
Johnson/Evinrude Various 35 2-Stroke 1979-1996 765012, 327674

Technical Specifications

Specification Value
Product Type Gasket Set
Installation Direct OEM replacement
Housing Material OEM-spec materials
Other Technical Attributes Manufactured to OEM specifications

Package Contents

  • 1 x Head Gasket (Replaces: 324324, 329419, 18-3803)
  • 1 x Water Cover Gasket (Replaces: 327674, 18-3899, 33700)

Installation Guide

  1. Disconnect the battery and spark plug wires for safety.
  2. Drain the engine's cooling system completely.
  3. Remove the engine cover and any other components obstructing access to the cylinder head and cover.
  4. Carefully unbolt and remove the cylinder head and water cover. Note the sequence and location of bolts.
  5. Thoroughly clean all old gasket residue from the engine block and cylinder head mating surfaces.
  6. Position the new head gasket and water cover gasket onto the clean surfaces.
  7. Reinstall the cylinder head and water cover. Tighten the bolts to the torque and sequence specified by the manufacturer.
  8. Reconnect all components, including hoses and spark plug wires.
  9. Reconnect the battery.
  10. Refill the cooling system and start the engine, carefully checking for any leaks.

Troubleshooting & FAQ

How do I confirm this gasket set fits my engine?
Check the "Compatible Engine Models" table on this page. Your engine's model, HP, and year should match a line in the table. Cross-referencing your old part number with our "Part Number Cross-Reference" table is also a reliable way to verify fitment.

What are the signs my head gasket is failing?
Common signs include engine overheating, loss of power and compression, milky-white oil, or water/coolant leaking from the engine block and head joint.

How often should head gaskets be replaced?
Head gaskets do not have a fixed replacement interval. They should be replaced whenever the cylinder head is removed for service or if any signs of failure appear.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51581813098

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 13 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
AQ
Lake Worth, US
★★★★★ 4
Dearly departed
Color: Green, Color: Green
This toy lasted two sessions. Two. Sessions. I don't really fault the toy. I fault the dipstick in the donut suit. Our dog did love this toy. He did look extremely cute carrying a caterpillar around. We did worry about property damage when he would joyfully toss the toy. I find the claim of "indestructible" to be exaggerated. We had some very tense minutes when we couldn't find the caterpillar's head. We kept looking at dog ingress points and dog eggress points with more and more worry. He did NOT swallow the head, it had rolled under a piece of furniture. He is blissfully unaware of how lucky he is. If he was half his size, this would have been a marvelous toy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
J
Verified Purchase
JusticeJones
Los Angeles, US
★★★★★ 5
Chew toy that holds up to aggressive chewers
Color: Green
Bought this for my 85 lb aggressive chewer. She loves this toy and gnaws on it constantly. My only complaint is that she likes to bring it to bed with her and I have to listen to "chomp, chomp, chomp" while falling asleep!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
It lasts!!!!
Color: Green
My dog LOVES this toy! He's a very aggressive chewer and so far this is the only toy that has lasted him. My guess is that he will eventually destroy it, but not for a very long time. He chews it so much that it gets "spikey" from all the chewing, but so far it's the only toy I gave found that lasts him. I've replaced it once because it gets yucky looking after all the chewing but that's my choice. I definitely recommend thus one for an aggressive chewer!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
J
Verified Purchase
JET
Whiting, US
★★★★★ 3
Very well made, heavy, wasn’t a hit with my big puppy.
Super cute, but painted features came off right away. It shouldn’t have, as it is rarely touched. Sadly my dog showed little to no interest in it. She carried it a few times. I think it may the very heavy weight for a toy of this size. Idk, but as cute as this is, it just wasn’t a hit. It looks very durable overall and is a nice toy. I love the design. I only wish my large breed puppy liked it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2026
S
Verified Purchase
Susan swenson
Lexington, US
★★★★★ 5
Takes a chewing and keeps on lasting
Color: Green
My puppy is a terrible chewer I bought this It is still lasting and sh chews it alot
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026

recommand products