★★★★★ 5
Very satisfied
Product was as described.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 24, 2025
Cometic GM LS1 SB 3.910 inch Bore .036 inch MLS Head Gasket
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Cometic GM LS1 SB 3.910 inch Bore .036 inch MLS Head GasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 036". Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two
Quick Dispatch:
Your Cometic GM LS1 SB 3.910 inch Bore .036 inch MLS Head Gasket orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Cometic GM LS1 SB 3.910 inch Bore .036 inch MLS Head Gasket ships.
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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
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4.8 ★★★★★
Based on 630 reviews
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Product Reviews
★★★★★ 1
impeller
The equipment was okay. However, there's no way of verifying what outdrive.It was four, so obviously ordered the wrong one
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
★★★★★ 5
Quality parts and as described
Color: Black
Product worked great, had all pieces and parts required for the job. Could have used instructions, but I was able to search and find it on YouTube.
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Great replacement kit
Color: Black
Water pump kit fits perfectly on my 200hp mercury outboard 2000 model. Excellent quality matching the OEM part I replaced from wear & tear. There where however extra gaskets & O-rings that go nowhere on my outboard
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 1, 2024
★★★★★ 5
Johnson 90 sea pro VLSIF
Color: Black
All parts required for proper water pump change were in kit. All parts were grouped and packaged. All made of solid materials sturdy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
