SKU: 51581813098

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

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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

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4.5 ★★★★★
Based on 11 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Louisville, US
★★★★★ 5
Comfy and cooling pillow cases for sleeping
Color: 01 - Light Grey, Color: 01 - Light Grey
Cooling cover for my pillow, great quality and super soft. Helps with my sleep. Have eye mask as a gift too. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
P
Verified Purchase
Precise Disarray
Draper, US
★★★★★ 5
super smooth, silky, stays comfortable feeling. DO NOT DRY or wash with heat
Color: Blue, Size: Queen (U.S. Standard), Set name: Stretchy and Soft, Color: Blue, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
I'm impressed. I have used cooling pillow cases before, and found them effective, but the cooling material have always been on just one side. These are 100% cooling material. The material is super smooth and silky feeling. It is great feeling against hair and skin (even better than my old polyester satin I was using before cooling pillowcases). The material is cool, and does not seem to get hot hot. The pillow cases are super stretchy with a small hidden zipper. They grab onto the pillow and dont loosen up. Makes my pillow look neat and clean, not sloppy from loose material. I can even have two pillows stacked and somehow despite being a smooth material, the pillows dont just slide off each other. The cooling aspect works by not trapping heat, not allowing heat to get to the pillow and hold it there. So yeh, the pillow case will feel warm eventually but if you have a fan, or AC, or flip the pillow, then it is is truly cool. Otherwise in my experience when I use a pillow without this, the pillow just gets hot, stays hot, and even with flipping it feels hot.. because the pillow itself has trapped the heat for remainder of night. Yuck. One thing to know and this is very important-- as I learned the hard way-- DO NOT DRY IN DRYER. DO NOT WASH IN HOT WATER. Heat will destroy the material ability to feel and stay cool. Do you want a regular heat trapping pillow case? Then go ahead and dry these in the dryer a few times and you will have a regular pillow case. HOw do I know? I bought these to replace another set (different brand, same idea, same instructions that I failed to remember). I always dried them in the dryer, and one night after having gloriously cool pillows, I noticed that my pillow was HOT night after night. It was then when looking for another set of pillow cases that I learned that they cant be exposed to heat like that. SO PLEASE, just AIR DRY. And so, after I got these and put them on my pillows, I had a much better nights rest. I remember thinking that I wasnt waking to rearrange my pillows. They were just comfortable all night long. Sure, I'd love an even colder pillow, but our room is on the warm side. But at least I wasnt noting the hot hot pillows anymore.
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Reviewed in the United States on June 6, 2021
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Verified Purchase
Grace
Bozeman, US
★★★★★ 5
A must try for hot sleepers!
Color: Blue, Size: Queen (U.S. Standard), Set name: Silky, Color: Blue, Size: Queen (U.S. Standard), Set name: Silky
If you are a hot sleeper these pillowcases are for you! Not only are they silky and beautiful, but they are cool to the touch!The Arc-Chill fabric absorbs heat and instantly cools your skin! If you are prone to insomnia, night sweats, give these a try! They come in a 2 pack and have a few different colors to try out. Highly recommend.
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Reviewed in the United States on May 27, 2026
A
Verified Purchase
Allen Plemmons
Whiting, US
★★★★★ 5
Freezing !
Color: Gray, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
### Product Review: Avolare 2 Pack Cooling Pillow Cases #### Overview The Avolare 2 Pack Cooling Pillow Cases are designed to provide a cooler and more comfortable sleeping experience, especially for hot sleepers. Made with Arc-Chill fabric, these pillowcases promise to offer a cooling effect, protect hair and skin, and add a touch of luxury with their soft and silky texture. The pillowcases come in a standard gray color, suitable for standard and queen-size pillows. #### Material and Design **Rating: ★★★★★** The Avolare Cooling Pillow Cases are crafted from Arc-Chill fabric, known for its high Q-max value (>0.5), indicating excellent cooling properties. The material feels incredibly soft and silky to the touch, providing a luxurious feel that enhances sleep quality. The gray color is neutral and versatile, fitting seamlessly with various bedding styles. The design includes a hidden zipper, ensuring that the pillowcase stays securely on the pillow while maintaining a smooth and sleek appearance. The zipper is discreet and doesn’t interfere with comfort, which is a thoughtful addition to the overall design. #### Cooling Effect **Rating: ★★★★★** One of the standout features of these pillowcases is their cooling effect. The Arc-Chill fabric effectively wicks away heat and moisture, making them ideal for hot sleepers or those living in warmer climates. Users have reported a noticeable difference in temperature, which contributes to a more restful and comfortable night’s sleep. This cooling property is particularly beneficial during the summer months or for individuals who tend to overheat while sleeping. #### Hair and Skin Benefits **Rating: ★★★★☆** In addition to their cooling properties, the Avolare pillowcases are also beneficial for hair and skin. The smooth and silky texture reduces friction, helping to prevent hair breakage and skin irritation. This can be particularly advantageous for individuals with sensitive skin or those prone to hair damage. While the pillowcases are not a cure-all for skin and hair issues, they do contribute positively by creating a gentler surface. #### Durability and Care **Rating: ★★★★☆** The Avolare Cooling Pillow Cases are easy to care for, maintaining their cooling properties and softness even after multiple washes. They are machine washable, which adds to their convenience. However, it is recommended to follow the care instructions carefully to ensure the longevity of the cooling effect and fabric quality. #### Versatility **Rating: ★★★★☆** These pillowcases are designed to fit both standard and queen-size pillows, adding to their versatility. They are perfect for use in any bedroom setting, from master bedrooms to guest rooms, and can be paired with various pillow types and fillings. #### Pros and Cons **Pros:** - Excellent cooling properties ideal for hot sleepers. - Soft and silky texture is gentle on hair and skin. - Hidden zipper design for a secure fit. - Machine washable and easy to care for. - Versatile fit for standard and queen-size pillows. **Cons:** - Cooling effect may diminish slightly with frequent washing. - Limited color options (only available in gray). #### Final Verdict **Overall Rating: ★★★★☆** The Avolare 2 Pack Cooling Pillow Cases are an excellent choice for anyone looking to enhance their sleeping experience, particularly hot sleepers. The cooling properties of the Arc-Chill fabric, combined with the soft and silky texture, provide a comfortable and luxurious feel. The hidden zipper design adds practicality without sacrificing aesthetics. While there are minor drawbacks, such as potential diminishing of the cooling effect with frequent washing and limited color options, the overall benefits make these pillowcases a worthwhile investment. If you’re seeking to improve your sleep quality and enjoy a cooler, more comfortable night’s rest, the Avolare Cooling Pillow Cases are definitely worth considering.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2024
B
Verified Purchase
Brian Olson
West Palm Beach, US
★★★★★ 4
Cool as the other side of the pillow
Color: Gray, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
Good quality and keeps cool on side of pillow. Have to flip pillow for constant cooling is the ok only down side. Love the material as it is very soft and silky feel to it. Doesn't wrinkle over pillow and had some good color options. Easy to clean. Fair price for a good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026

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