Bosch original 109962-0042 109962-0061 109962-0020 Common Rail Fuel Injector, High Performance Excavator Engine Fuel Injector Nozzle Assy, Replacement OEM Parts original new injector

Engineered to Bosch OE specifications, the GE13 Series Common Rail Diesel Fuel Injector 109962-0042 (OEM 0445120042) is an original new injection component for GM Duramax 6.6L V8 diesel engines in LBZ, LLY, and LMM configurations. It is supported by an extensive cross-reference network, including Bosch 0 445 120 042, 0986435521, and 0986435521RX, GM 97361355, 97780358, and 97780474, Hummer 5745888, Isuzu 8-97361-355-6 and 8-97631-355-6, plus aftermarket references AP55521, FJ962, DE668, and 732-503.

Manufactured with micron-level machining tolerance and precision-matched internal components, this solenoid-controlled injector supports modern high-pressure common rail systems operating at up to 1600, 1800, 2000, or 2200 bar, depending on engine calibration. Multiple injection events—pilot, main, and post injection—ensure exceptional fuel atomization, optimized combustion efficiency, reduced particulate emissions, improved fuel economy, and enhanced engine power output. A hardened alloy steel body, wear-resistant needle assembly, and corrosion-resistant coatings deliver long-term durability and extended service life in demanding heavy-duty and fleet operating conditions.

The 109962-0042 fits Chevrolet Silverado 2500HD/3500HD, Express, Kodiak C4500/C5500, GMC Sierra, Savana, TopKick, and Hummer H1 models, and also serves industrial generator systems, mining and construction machinery, agricultural power units, and diesel remanufacturing programs. For dependable installation, always fit a new copper washer, O-rings, and sealing components, clean the injector seat, verify the injector code, and perform injector calibration. Contact our sales team for bulk pricing and fleet supply.