1 0 Caterpillar 420D Differential Contact for price DIFFERENTIAL FRONT, GOOD USED CONDITION , FROM 420D CAT BACKHOE . FITS TO MANY MODELS, Quantity2ConditionUsed MLS Number10222555CategoryDifferentials Last Updated7/24/2025 LocationUnion Gap, WA, US Sold ByDukes Equipment & Parts (844) 334-___ SHOWNUMBERCall Seller Email Seller Save More Info