Liner Kit for Isuzu NPR, NPR-HD & NQR 4HE1 4.8L (1998–2004) – OEM Replacement Unit

This OEM Liner Kit is designed for Isuzu NPR, Isuzu NPR-HD, and Isuzu NQR trucks equipped with the 4HE1 4.8L diesel engine (1998–2004).

The liner kit includes precision-machined cylinder liners that provide a durable, wear-resistant surface for the piston to travel. Over time, cylinder walls can wear or become damaged, leading to:

• Reduced compression and power

• Increased oil consumption

• Engine knocking or vibration

• Excessive smoke or poor fuel efficiency

Installing a new OEM liner kit restores proper cylinder dimensions, improves compression, and ensures long-term engine performance. Manufactured to OEM specifications for exact fit and durability.

Key Features

• OEM-style liner kit for 4HE1 4.8L diesel engines

• Fits Isuzu NPR, NPR-HD, and NQR trucks (1998–2004)

• Precision-machined cylinder liners for optimal piston travel

• Restores compression and engine efficiency

• Durable construction for long-lasting service

• Direct-fit replacement for hassle-free installation

Vehicle Compatibility (1998–2004)

Fits Isuzu Medium-Duty Trucks with 4HE1 4.8L Engine:

• Isuzu NPR

• Isuzu NPR-HD

• Isuzu NQR

Condition: New OEM replacement
Position: Engine cylinder liner kit (unit)

Common Signs You Need a New Liner Kit

• Loss of engine compression or power

• Excessive smoke from exhaust

• High oil consumption

• Engine knocking or vibration

• Poor fuel efficiency