YEHERIT LS7 Hydraulic Lifter Kit set of 16 with Guide Trays – Direct-Fit OE Replacement for LS/LT 4.8–6.2L

This lifter kit provides a direct-fit replacement for a wide range of GM small-block V8s including LS1, LS2, LS3, LS6, LS7 and their later derivatives (LM7, LQ4, LQ9, L83, L86, LT1), covering displacements from 4.8L to 6.2L. Each set includes guide trays to keep the lifters aligned and simplify installation, and the components are manufactured to match OE dimensions and many original part numbers (for example 12499225 and 17122490). The design emphasizes durability and consistent operation for performance and street engines where precise valve actuation is required.

Will these lifters fit my engine model?

YEHERIT lifters are built to be compatible with most Gen 3 and Gen 4 LS platforms and the Gen 5 LT family, but fitment depends on your specific engine casting and part history. Check the engine type and cross-reference the listed OE numbers to confirm compatibility before purchase.

• Compatible engines: LS1, LS2, LS3, LS6, LS7, LM7, LQ4, LQ9, L83, L86, LT1
• Supported displacements: 4.8L, 5.3L, 5.7L, 6.0L, 6.2L
• Reference OE numbers: 12499225, 17122490, 12576400, 12648846, and related codes
• Include guide trays for correct lifter spacing and retention

How do these lifters affect engine performance and reliability?

Properly functioning lifters maintain accurate valve timing and reduce valve train noise; upgraded replacement lifters can restore lost performance and improve engine smoothness. YEHERIT units are manufactured from durable materials and precision-machined to OEM tolerances to support high-RPM and performance-oriented applications.

• Designed for consistent hydraulic action across operating temperatures
• Precision dimensions help maintain valve lash and timing integrity
• Durable construction reduces wear in demanding engines
• Ideal for restoring factory specification operation after wear or failure

What comes in the kit and what should I prepare for installation?

The kit ships as a set of 16 lifters plus guide trays to position and secure the lifters in the block. Preparing the engine and having the correct tools makes installation smoother—clean lifter bores, check pushrods and rocker geometry, and follow torque specs for reassembly.

• Contents: 16 hydraulic lifters and guide trays for alignment
• Recommended prep: inspect and clean lifter bores before fitting
• Check pushrods and rocker arms for wear and correct length
• Follow engine-specific torque and break-in procedures after install

Are these lifters an OEM-equivalent replacement?

Yes — the YEHERIT lifter set is manufactured to match OE form, fit, and function and is cross-referenced to multiple original part numbers. They’re intended to act as a direct replacement for worn or damaged lifters in compatible GM V8 engines.

• Engineered to OEM dimensions for straightforward replacement
• Cross-referenced part numbers included for verification
• Guide trays reproduce factory retention and alignment methods
• Suitable for both stock and many performance rebuilds

Who is this for: The YEHERIT LS7 lifter kit is aimed at mechanics, home engine builders, and performance enthusiasts restoring or upgrading Gen 3/4 LS and Gen 5 LT V8s that need reliable, OE-dimension hydraulic lifters. If you’re replacing noisy or failing lifters, rebuilding a cylinder head or engine, or refreshing a high-RPM powerplant, this set offers a practical OEM-style solution. Always confirm compatibility with your engine casting and parts list before ordering to ensure a correct fit.