Jet Piston Cooler for Isuzu NPR, NPR, NPR-HD, NQR, NRR, 4HK1, 5.2L, & 6HK1, 7.8L, 2007–2010 OEM

Protect your diesel engine from overheating with this OEM Jet Piston Cooler for Isuzu NPR, NPR-HD, NQR, and NRR trucks from 2007–2010. Compatible with 4HK1 5.2L and 6HK1 7.8L diesel engines, this cooler directs pressurized oil onto the pistons to dissipate heat efficiently, preventing piston damage and improving engine longevity.

Manufactured to OEM standards, it is designed for high durability, precise fit, and optimal performance under heavy-duty conditions. Replacing worn or faulty piston coolers prevents piston seizure, reduces engine wear, and maintains power output.

Key Features:

• OEM-spec jet piston cooler for Isuzu trucks

• Compatible with 4HK1 5.2L and 6HK1 7.8L diesel engines

• Directs oil to pistons to dissipate heat efficiently

• Prevents piston overheating, seizure, and wear

• Durable, precision-engineered for exact fitment

• Essential for engine longevity and reliability

Vehicle Compatibility:

• 2007–2010 Isuzu NPR / NPR-HD / NQR / NRR

• Engines: 4HK1 5.2L / 6HK1 7.8L Diesel