Caterpillar original Diesel Fuel Injector Assembly for C9 Engine 20R-8061, Cross Reference 387-9439, Replacement for OEM 20R-8067, 20R-8427, Suitable for Excavator and Truck original new injector

Precision-machined to meet strict Caterpillar OEM specifications, the CAT 20R-8061 original new diesel fuel injector is purpose-built for C9-series heavy-duty engine platforms. It delivers direct fitment for C9, C9 ACERT, C9.3, C9.3B, and specialized C9 variants designed for industrial, marine, power generation, mining, petroleum, and pump drive applications. Verified cross-reference numbers include 287-8061, 10R-8020, 147-2412, and 268-8061, supporting seamless parts lookup for maintenance teams. The assembly is compatible with excavators, wheel loaders, heavy-duty trucks, generator sets, and material handling equipment across core industrial sectors.

Manufactured with hardened alloy steel bodies, precision-ground internal components, and advanced nozzle technology, the 20R-8061 ensures consistent, accurate fuel delivery across its entire service life. Its electronically controlled high-pressure common rail design optimizes spray atomization and combustion efficiency, reducing fuel consumption, exhaust emissions, engine knock, and black smoke while improving power output, cold-start performance, and idle stability. The industrial-duty build resists extreme temperatures, high-cycle fatigue, and sustained heavy loads to support reliable operation in harsh work environments.

For B2B fleet operators and equipment maintenance teams, this injector resolves common failure symptoms such as excessive smoke, poor cold starts, fuel rail pressure errors, and engine derate when installed per OEM guidelines. Proper installation requires cleaning injector bores, replacing sealing washers and O-rings, and verifying injection timing, while routine maintenance with clean diesel, OEM-quality filters, and regular water separator drainage maximizes service life and reduces unplanned downtime.