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Michigan Motorsports Gen V LT Valley Cover Gasket | Fits 2014+ 5.3L 6.2L LT1 LT4 L83 L86 Engines | OE-Style Replacement Seal Like GM 12623104 in Saudi Arabia Michigan Motorsports Gen V LT Valley Cover Gasket | Fits 2014+ 5.3L 6.2L LT1 LT4 L83 L86 Engines | OE-Style Replacement Seal Like GM 12623104 in Saudi Arabia Michigan Motorsports Gen V LT Valley Cover Gasket | Fits 2014+ 5.3L 6.2L LT1 LT4 L83 L86 Engines | OE-Style Replacement Seal Like GM 12623104 in Saudi Arabia

Michigan Motorsports Gen V LT Valley Cover Gasket | Fits 2014+ 5.3L 6.2L LT1 LT4 L83 L86 Engines | OE-Style Replacement Seal Like GM 12623104

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Special Features

  • OE-Style Replacement Gasket – Designed to replace GM part number 12623104, providing factory fit, sealing performance, and long-term reliability.
  • Prevents Oil & Vacuum Leaks – Ensures a tight, leak-free seal at the valley cover, protecting your LT engine's efficiency, performance, and longevity.
  • Durable Construction – Manufactured from high-quality materials that withstand heat, oil exposure, and extended service life.
  • Wide LT Engine Compatibility – Fits 2014+ GM Gen V LT engines including LT1, LT4, L83, and L86 in 5.3L and 6.2L configurations. For 2019-newer truck engines, you MUST verify that you have an L83 or L86 engine, as this gasket will not fit L82, L84, or L87 engines. Fits Vehicles with 8th Digit of VIN = C, J, R, 7 or 6
  • Trusted Michigan Motorsports Quality – Backed by years of LS and LT expertise, ensuring you get dependable sealing at an affordable price.

Description

The Michigan Motorsports Gen V LT Valley Cover Gasket is a direct-fit OE-style replacement designed to maintain a leak-free seal on 2014+ LT1, LT4, L83, and L86 engines. Built to match GM part number 12623104, this gasket provides reliable sealing and long-term durability under demanding conditions. Whether you're refreshing your factory valley cover during a rebuild or addressing oil leaks, this gasket ensures proper fitment and performance. Made from high-quality materials, it delivers OEM-level reliability with the added confidence of Michigan Motorsports quality. For 2019-newer truck engines, you MUST verify that you have an L83 or L86 engine, as this gasket will not fit L82, L84, or L87 engines.

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