Caterpillar original Common Rail Fuel Injector 370-7281 3707281 for C7.1 C4.2 C4.4 Excavator E330D E336D 336 CHEVROLET S10 Pickup Replacement for OEM original new injector

The Caterpillar C4.4 Fuel Injector, identified by primary OE number 370-7281 with cross references 209-4394, 320-7281, and 0R-7281, is engineered as an OEM equivalent replacement component for CAT C4.4 diesel engines. Designed for inline 4-cylinder, turbocharged, high-pressure common rail, direct injection, and electronically controlled engine platforms, this injector delivers consistent fuel metering under demanding industrial operating conditions across C4.4, C4.4 ACERT, C4.4 Generator, C4.4 Industrial, and C4.4 Agricultural variants.

Manufactured to OEM equivalent tolerances using hardened alloy steel with an anti-corrosion coating, the injector is precision CNC machined to ensure exact dimensional conformity and reliable threaded standard CAT mount installation. The integrated multi-hole spray nozzle promotes enhanced fuel atomization, while the high-pressure resistance rated up to 2200 bar supports stable injection performance throughout the engine's operational range. Each unit is validated to meet OEM standard compliance, providing wear and corrosion resistance and contributing to an extended service life.

This fuel injector carries a 12-month or 1000-hour warranty and is suitable for a wide range of Caterpillar equipment, including Wheel Loaders 906H, 908M, and 914M; Excavators 308E2, 309E2, and 311F; Backhoe Loaders 416F2 and 420F2; Telehandlers TH414 and TH336; Skid Steer Loaders 236D3 and 242D3; Road Rollers CB24B and CB22B; C4.4 Power Units; and C4.4 Tractor Series. It serves construction, mining, agricultural, and power generation applications, offering a dependable replacement solution for fleet operators and service professionals.