Product Introduction C4960214 Oil Cooler Gasket is a flat composite sealing spacer installed between oil cooler core and engine block on ISZ13 diesel engine. It seals the mating interface to separate engine oil passages and coolant channels, preventing cross-contamination between lubricant and antifreeze fluid. This aftermarket replacement gasket resolves hidden fluid mixing, oil pressure anomalies and coolant foaming caused by gasket cracking, compression failure and thermal degradation of aged seals. Reliable isolation protects bearing components and keeps oil temperature within normal range for heavy trucks running continuous long-haul highway missions.

Product Advantages Constructed from multi-layer heat-resistant composite material that withstands alternating high oil temperature and coolant temperature. The layered structure offers moderate elasticity to compensate for minor flange deformation from heat expansion. The material resists chemical attack from engine oil and glycol coolant additives. Each gasket is inspected for outline precision and surface integrity before shipment, OEM shape for direct fitment during oil cooler maintenance.

Applicable Models Compatible with heavy-duty commercial trucks equipped with ISZ13 diesel engine, widely used for intercity bulk cargo transportation.

FAQ

Q1: What serious failure occurs once oil and coolant mix through a failed cooler gasket?
A1: Lubricating oil loses friction-reducing ability, which can quickly lead to crankshaft bearing seizure.
Q2: What cleaning requirement must be met on the cooler and block sealing surfaces?
A2: All old gasket remnants, rust and scale must be fully removed to achieve even clamping pressure.
Q3: Is it necessary to test the oil cooler itself while replacing this gasket?
A3: Yes, perform a pressure test to rule out internal core leakage that creates similar symptoms.