Product Introduction C3035027 Oil Pump O-Ring is a compact yet critical sealing gasket fitted between the engine oil pump and crankcase mating surface on ISZ14 power unit. It fills the micro gap of the joint face to stop pressurized engine lubricant from escaping and prevent unfiltered air from being sucked into the oil circuit. This aftermarket replacement ring resolves hidden oil seepage, fluctuating oil pressure and air cavitation issues triggered by compression set, thermal hardening and chemical erosion of aged seals. Stable sealing keeps lubrication pressure consistent and protects bearings and crankshaft journals from inadequate oil supply during heavy-duty long-haul operation.

Product Advantages Manufactured from premium fluoro rubber blend with strong tolerance to high oil temperature and diesel additives. The uniform cross-section maintains resilient clamping force through repeated heating and cooling cycles. The material does not easily swell or soften under continuous exposure to engine lubricants. Every batch is sampled for compression recovery and thermal aging tests before packing, simple installation during oil pump removal and overhaul work.

Applicable Models Compatible with heavy-duty commercial trucks equipped with ISZ14 diesel engine, mostly used for highway long-distance freight transport.

FAQ

Q1: What symptom on the dashboard may relate to a leaking oil pump O-ring?
A1: Fluctuating oil pressure readings, especially noticeable during engine idle condition.
Q2: What surface preparation should be finished before placing the new O-ring?
A2: Thoroughly scrape away old gasket residue and clean the mating faces to avoid uneven compression.
Q3: Can excessive tightening torque of oil pump bolts crush the O-ring permanently?
A3: Over-torque squeezes the rubber beyond its elastic limit and causes permanent deformation.