Caterpillar original Replacement Excavator Diesel Engine Fuel Injector 376-0509 for C3500 Engine, Cross Reference 150-4453, 373-4087, 20R-1264 for Caterpillar Construction original new injector

Purpose-built for Caterpillar 3512B series diesel engines, the CAT-branded 376-0509 fuel injector is an original-type replacement fuel delivery component developed for aftermarket engine service and repair applications. It carries the official OE part number 376-0509 (alternatively formatted as 3760509), and is categorized as a diesel fuel injector assembly aligned with Caterpillar’s original part specifications for the 3512B engine platform.

This unit supports direct replacement for a wide range of interchangeable Caterpillar injector part numbers, with 20 listed cross references covering both hyphenated and non-hyphenated number formats. Key interchangeable numbers include 20R-0849, 392-0211, 250-1311, 229-0190, 150-4453, 132-0203, 124-9530, 10R-1279, 0R-8619 and 0R-8890, along with their format variants. This broad interchangeability reduces SKU complexity for parts distributors and simplifies part matching for maintenance teams working with different production batches of 3512B engines.

Tailored for B2B industrial supply chains, the 376-0509 injector supports bulk procurement for engine rebuilders, equipment service providers and MRO suppliers. Buyers are advised to verify the existing injector part number and engine model against listed OE and interchange codes before purchase to ensure correct fitment. Its standardized Caterpillar part numbering also allows easy integration into existing industrial parts inventory and catalog management systems.