Supplier: XCM-Parts Name of product: Final Drive Motor model: GM21 Motor number: YY15V00015F1 Y15V00015F1 Condition: OEM new Warranty: 1-3 months Payment: T/T , Western Union , PayPal , Credit Card Delivery: estimated 7 days Kobelco SK120 Final Drive GM21VA Final Drive is common used for excavator models as Volvo SY155 SY130, Kobelco SK100 SK120 series machine.