Jet Piston Cooler
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4HK1, 6HK1
Jet Piston Cooler for Isuzu NPR, NPR, NPR-HD, NQR, NRR, 4HK1, 5.2L, & 6HK1, 7.8L, 2007–2010 OEM
4HK1, 6HK1Jet Piston Cooler for Isuzu NPR, NPR, NPR-HD, NQR, NRR, 4HK1, 5.2L, & 6HK1, 7.8L, 2007–2010 OEM
New OEM jet piston cooler for Isuzu NPR, NPR-HD, NQR, and NRR (2007–2010) with 4HK1 5.2L or 6HK1 7.8L diesel engines. Cools pistons to prevent overheating and maintain engine performance.
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