Description
Product Overview
The XTPTFABS 2M4860 piston rings are crafted from durable metal to meet the exacting standards of GM 6.0L LQ4 and LQ9 truck engines produced between 1999 and 2006. Each set includes eight rings designed for a standard 4.000 inch (101.6 mm) bore diameter, with a 1.5 mm thickness for the top and second rings and a 3 mm oil ring. The rings are engineered to restore compression, reduce oil consumption, and improve overall engine performance without requiring any modifications to the engine block.
Usage
These piston rings are ideal for rebuilding or overhauling the engine of mid‑size GM trucks, especially in applications where reliable power delivery and fuel efficiency are critical. Whether you are a professional mechanic performing a full engine rebuild or an experienced DIYer restoring a classic truck, the 2M4860 rings provide a direct‑replace solution that fits the original specifications. 
Why Choose Us
XTPTFABS combines rigorous manufacturing processes with premium material selection to ensure each ring meets OEM tolerances. Our rings undergo heat treatment and precision machining to guarantee consistent hardness and dimensional stability. Backed by a 4.4‑star rating from 16 verified customers, the product demonstrates reliability and satisfaction in real‑world engine repairs.
Key Features
- Exact 4.000 inch bore fit for GM LQ4/LQ9 engines ensures seamless installation.
- High‑strength metal construction provides superior wear resistance and longevity.
- Standard thickness design restores original compression ratios and reduces oil blow‑by.
- Direct‑replace package eliminates the need for additional machining or modifications.
- Validated performance with a 4.4‑star rating from verified user reviews.
FAQ
Will these rings fit engines other than the GM 6.0L LQ4/LQ9?
The 2M4860 rings are specifically sized for a 4.000 inch bore, which matches the GM 6.0L LQ4 and LQ9 specifications. Using them on engines with different bore sizes may result in improper sealing and reduced performance.
Do I need to machine the cylinder walls before installing these rings?
No additional machining is required if the cylinder walls are within OEM wear limits. The rings are designed for a direct replacement on a properly prepared surface.
How many rings are included in the package?
The package contains eight piston rings, sufficient for a complete set on a four‑cylinder engine.
Can I install these rings myself?
Yes, the rings are designed for straightforward installation with standard tools. However, proper cleaning of the cylinder and careful handling of the rings are essential for optimal results.
What warranty does XTPTFABS provide?
XTPTFABS offers a limited warranty covering manufacturing defects. Please refer to the seller’s warranty policy for specific terms.
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