Caterpillar C7 / C9 Fuel Injector 268-1835 Product Detail Page Description Product Overview The Caterpillar 268-1835 fuel injector, also searched as 2681835, CA2681835, CAT 268-1835 Injector GP, and Caterpillar C7 fuel injector, is a heavy-duty diesel injector assembly used in selected Caterpillar equipment powered by CAT C7 and some listed CAT C9 applications. Caterpillar’s official parts listing identifies 268-1835 as an Injector GP and lists compatible model families including excavators, wheel loaders, wheel skidders, motor graders, asphalt pavers, integrated tool carriers, mobile hydraulic power units, and the C7 industrial engine. Caterpillar also notes that fitment should be confirmed by equipment configuration and serial number before purchase. This injector is designed for diesel fuel delivery control inside the engine combustion system. A correct injector helps maintain stable atomization, balanced cylinder performance, fuel economy, cold-start reliability, low smoke output, and engine response under load. Cat’s fuel-system category describes fuel injectors as components that deliver the correct amount of fuel at the right time for engine performance, and Cat notes that fuel injectors and remanufactured injectors can help improve efficiency, emissions, and fuel consumption. Important fitment note: This product page is written for SEO and product publishing. Before shipment or installation, verify the injector by part number, engine model, machine model, engine serial number, injector code, connector type, and original injector removed from the machine.