Caterpillar original 359-5469 Diesel Fuel Injector for Construction Machinery, 3512B/3516B Engines, Replacement for OEM 250-1312, Compatible with 375-4106, 250-1311 original new injector

As a purpose-built heavy-duty component for Caterpillar power systems, the CAT-branded 359-5469 diesel fuel injector is engineered exclusively for compatibility with CAT 3512B engines. Manufactured to meet or exceed OEM quality standards, it functions as a direct, factory-spec replacement for cross-referenced part numbers 10R-7148, 126-4567, and 359-5469A, with a direct engine-mount design that eliminates on-site modification requirements during installation.

The injector utilizes a multi-hole precision nozzle and precision-machined plunger to deliver pressurized fuel at exact timing and optimized spray patterns, supporting an operating pressure range of 2000–2500 bar. Constructed from high-grade alloy steel with anti-corrosion surface treatment and multi-layer leak-proof sealing, it resists wear, high pressure, and extreme operating temperatures, while optimized fuel atomization improves combustion efficiency, reduces exhaust emissions, and stabilizes performance under variable load conditions.

Validated for harsh industrial and marine operating environments, it supports a broad range of use cases including industrial power generation, marine propulsion, oil and gas pumping, and earth-moving construction machinery. It is backed by a 12-month / 1000 operating hour warranty, and routine service follows official CAT 3512B guidelines, with recommended 500-hour spray pattern inspections and seal replacement during every servicing to maximize long-term operational reliability.