Caterpillar original Caterpillar 386-1752 C9 C-9 diesel fuel common rail injector assembly new injector original new injector

The Caterpillar CAT 386-1752 Fuel Injector Assembly is an OEM-specification unit designed to deliver precise fuel delivery for the CAT 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, and 3516C engine platforms. Manufactured to original dimensional tolerances, this injector integrates precision-machined internal components with advanced nozzle technology to produce a consistent spray pattern, supporting stable combustion and reliable power output across heavy-duty industrial, marine, and power generation applications.

Engineered for superior durability under extreme operating conditions, the 386-1752 injector helps reduce maintenance cost while improving overall fuel economy. Its stable fuel delivery characteristics make it well-suited for generator sets, marine propulsion systems, offshore platforms, mining trucks, oil and gas power systems, and other heavy industrial machinery. Operators benefit from dependable cold-start behavior, balanced cylinder performance, and long service intervals when paired with proper fuel system maintenance.

Multiple cross-reference numbers are available to support global sourcing and remanufactured replacement programs, including 20R-1264, 392-0200, 10R-1284, 11R-0278, 0R-9944, 144-5665, 162-8813, 229-0197, and 250-1300. To maintain optimal injector performance, operators should use high-quality diesel fuel, replace fuel filters on schedule, prevent water contamination, and perform periodic fuel system cleaning in accordance with OEM maintenance guidelines.