original Common Rail Diesel Fuel Injector for Excavator 330D 336D E336D E340D Construction Machinery Engine Parts Replacement OEM 20R8064  original new injector

The C7 HEUI fuel injector 20R-8064 is engineered as a direct-fit replacement for the C7, C7 ACERT, and C7.1 diesel engine platforms, covering the full range of authorized cross references including 10R-7222, 10R-7221, 20R-8968, 20R-1917, 229-1775, 235-3907, 254-4339, 267-3360, 293-4072, 328-2574, 387-9433, 557-7633, 553-2592, and 572-0119. Built to match the original injector dimensional standards, this unit integrates seamlessly with the HEUI fuel injection system used across industrial, generator, and marine engine configurations.

Manufactured using hardened alloy steel and precision grinding technologies, the injector delivers accurately metered fuel quantities under all engine load conditions. Internal wear-resistant components, combined with corrosion-resistant materials suitable for ultra-low sulfur diesel and various global fuel standards, ensure stable operation under demanding thermal conditions. The HEUI design provides improved atomization, reduced fuel consumption, better cold-start performance, lower emissions, higher power density, and precise injection timing, supporting an expected operational lifespan that may exceed 10,000 hours under proper maintenance.

This injector is suited for construction machinery, mining equipment, power generation systems, marine vessels, and industrial power packages driven by the C7 engine family. During installation, technicians should clean the injector bore, fit new copper washers and O-rings, lubricate seals, tighten the injector vertically to specification, connect the electrical connector, prime the fuel system, verify no leakage, and perform electronic calibration. Professional ECM verification is strongly recommended to ensure optimal engine performance.