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GEN 3 III LS Gasket Set Kit & LS Head Gaskets Compatible with 1999-2010 GM Chevy Silverado GMC Sierra 1500 2500 Engine LS1 LS6 LQ4 LQ9 4.8L 5.3L 5.7L 6.0L Replace# 12558178 12551933 12611384

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$70.99

$ 27 .99 $27.99

In Stock
  • Fitment: Compatible with 1999-2010 Chevrolet Silverado 1500 2500 3500 Suburban 2500 Express 3500 | 2001-2007 GMC Sierra 1500 2500, 4.8L 5.3L 5.7L 6.0L. For details, please check the picture or the description below
  • Good sealing: Effectively seal the oil, coolant and gas in the cylinder, conduct heat and dissipate heat
  • Durability: Can withstand the high pressure, high temperature and corrosive media of the car. Ensure durability and optimal operation at higher or lower temperatures
  • Replace Part: 12558178, BTR73450, 12617944, 12612350, 12630223, 12633904, 12637683, 12585673, 12639249, 89060436, 12551933, 12611384, 12558177, 12622033
  • PERFECT FIT: Engineered to OEM specifications, our gasket set ensures a perfect fit, minimizing the risk of leaks and optimizing engine performance. Any questions please feel free to reach out to us, and we will reply to you in time



Product Description

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shane luckett
Reviewed in the United States on March 1, 2025
If you’re doing a top end or lifter replacement, this kit is all in one stop for Gaskets haven’t had one leak on me yet.
Nathan logsdon
Reviewed in the United States on January 28, 2025
Three months after insulation of every gasket and seal in this kit on my gen 3 5.3l lm7 And everything is working fantastic. The rear my seal is dripping slightly because of my own error, I lubed the rear main seal with oil not knowing that is Teflon and it’s supposed to burn to the crank to seal properly. But overall great for the price I will compare them to felpro Which I have wasted money on in the past many times. I will be going with the kit every rebuild I do for now on.
Customer
Reviewed in the United States on January 2, 2025
This listing is misleading. All gaskets do not fit.. most do but some are different.
T-bome works good
Reviewed in the United States on December 30, 2024
Looked like good quality,Everything seems to fit well
Kristian Hinojosa
Reviewed in the United States on December 14, 2024
This kit comes with eveyting you need to rebuild your ls! The quality is great! I have a 5.3 pushing a little over 500hp and not a single leak!
Mac
Reviewed in the United States on April 6, 2024
Don't say there ls9 gaskets when the standard gaskets 3 layer ls9 are 7 layer refund my money takes longer to refund then is dose to ship what a joke
Travis
Reviewed in the United States on December 30, 2023
The head gaskets are for a 5.3 not a 6.0