Fuel Injector Pencil Nozzle 4W7018 0R3422

Part Number: 4W-7018
Related References: 0R-3422
Component Type: Fuel Injector Pencil Nozzle
Fuel: Diesel
Fuel System: Mechanical diesel fuel injection
Main Engine Applications: Caterpillar 3406B, 3406C, 3408, 3408B, 3408C, 3412 and related engines
Equipment Applications: Construction, mining, agricultural, industrial, marine, and power-generation equipment
Condition: Brand new aftermarket replacement
Use: Injector replacement, fuel-system repair, and injector servicing

The Caterpillar parts catalog lists 4W-7018 for a broad range of equipment and engines, including 3406B/3406C, 3408/3408B/3408C and 3412 engine applications. Compatible equipment includes 988B/988F/990/992C/992D wheel loaders, D8L track-type tractors, 769C/773B/775B trucks, 631D/631E/633D/637D/637E/639D wheel tractor-scrapers, 834B wheel dozers, 836 landfill compactors, and PR-series cold planers.

Compatibility Note: Always verify the original part number, injector configuration, engine model and serial number, and equipment model before ordering. 4W7018 and 0R-3422 are widely cross-referenced in aftermarket listings, but exact compatibility can depend on the original engine configuration.