★★★★★ 5
Very good quality
Size: 2-pack
Good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
Mercury 200-300 Hp 3.0L XS DFI Optimax Rebuild Kit 100-51-12, 842986T0.020 3.645
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Mercury 200-300 Hp 3.0L XS DFI Optimax Rebuild Kit 100-51-12, 842986T0.020 3.645WSM Mercury 200 300 Hp 3. 0L XS DFI Optimax Rebuild Kit . 020 size pistons starboard and port 3. 645" Fully Machined Hypereutectic Cast Alloy Hard Coat Anodized Piston Tops Resisting Temperatures up to 1560`F T6 Heat Treated Hardness HV280 400 Plasma Moly Coated Rings Full Floating Wrist Pin This kit meets or exceeds OEM specifications. Includes: Six Brand New High Quality WSM Pistons, rings, pins and clips, complete gasket kit, upper, center and
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Based on 2365 reviews
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Product Reviews
★★★★★ 5
As advertised
Size: 2-pack
Worked great on a replacement headliner for my 99 Jeep Grand Cherokee
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2025
★★★★★ 3
Ight
Size: 2-pack
Just get the Permatex for a better "spray on", both cans I bought required way too much effort in shaking between spraying. I did shake the can well before use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 6, 2025
★★★★★ 5
Best choice! Absolutely necessary for anything above basic stock bass.
Bonded to services well, completely removed panel reverberation in my tacoma. Also really made the doors so much quieter even when closing. Very happy with the result.
Used only one set on my 01 tacoma 4 door. Installed inside doors on exterior skin panel, over interior door panel access holes (sealing the door to provide backpressure to door speakers (left drains open)), roof panel, and back wall of cab. Achieved about 70% coverage and am very happy.
2 8in SKAR SVR8 at 1oh on walmart power acustic 2500 (only rated to ~800rms at 2oh, forum showed testing at 1oh worked about 1kw) in 6th order with blow through into cab. With cab gain, im over 130db between ~30 and ~50hz. This was a necessary addition!
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Reviewed in the United States on April 13, 2026
★★★★★ 5
Nice and sticky
Works as it should. No complaints.
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Reviewed in the United States on May 8, 2026
