LQ4 Rebuild Kit
LQ4 & LQ9 6.0 Rebuild Kits — Gen III 6.0L Iron Block
LQ4 and LQ9 rebuild and refresh kits. These engines came with two different ring packs depending on the pistons installed, so we offer both and tell you exactly what to measure (1.5mm vs 1.2mm top ring) — no guessing.
Build my refresh kitPlan a full rebuildPick your RPO code
| RPO | Engine | |
|---|---|---|
| LQ4 | 6.0L iron, Gen III, 1999–2007 trucks/vans | Build LQ4 refresh kit → Full LQ4 rebuild → |
| LQ9 | 6.0L iron HO, Gen III, flat-top pistons, 2002–2007 | Build LQ9 refresh kit → Full LQ9 rebuild → |
What we match for you
- Piston rings: Mahle 41858CP (4.000", 1.5/1.5/3.0mm, $80.99) or 42084CP (4.000", 1.2/1.5/2.5mm, $136.99)
- Gaskets: Fel-Pro HS26192PT6 head set ($275.99) + CS9284 conversion set ($163.99)
- Bearings: King and Dura-Bond main, rod and cam bearing sets
- Valvetrain: Texas Speed cams, spring kits, pushrods, timing sets and BTR / COMP trunnion kits
- Oiling: Melling oil pumps, rear covers, Fast Fish seals
Questions
Main, rod and cam bearings, a standard-bore piston ring set matched to your engine's ring grooves, head and lower gasket sets, crank seals, plus optional cam, lifters, pushrods, valve springs, timing set, oil pump and a rocker trunnion upgrade. Anything you want to keep — covers, oil pan, balancer — you mark "re-use mine" at no charge.
No. Order the parts kit and every part drop-ships from our suppliers to you, with a machine-shop spec sheet you can hand to your local shop. Or bring the engine to our Glendale, AZ shop and we rebuild it.
It's on the Service Parts Identification sticker in the glove box, console lid or spare-tire cover. You can also match the 8th digit of the VIN.