8-97332226-0 CYLINDER; WHEEL,RR BRK ISUZU for NPS/4HE1

Returns Excess Fuel to Maintain Injection Pressure

The leak off connector assembly is a critical component in the low-pressure fuel return circuit. It collects excess fuel from the injectors and safely channels it back to the tank, preventing over-pressurization and maintaining stable injection pressure across all cylinders. Aftermarket connectors often lack the dimensional accuracy for proper sealing, leading to flow restriction and air ingress.

 Engineered for Fuel Exposure and Vibration

Isuzu Genuine Connector Assemblies are manufactured from high-grade, corrosion-resistant steel to withstand continuous diesel exposure, thermal cycling, and engine vibration. They incorporate precision-formed fittings and sealing washers that maintain a leak-proof seal, resisting cracking and fatigue at the joint interface. Used extensively across Isuzu engine families including 4JJ1, 4HK1, and 6HK1, with part numbers such as 8973152312, 8973152311, and 8981610610.