Product Description Diamond Gard Heavy Duty Starter, Fits Volvo Cummins ISX 2007-current. Starter Relay #12-8484 Starter Solenoid #12-10581. See Attached Document for Additional Information.Diamond Gard Heavy Duty Starter, Fits Volvo w/ Volvo D11 20047-current. Starter Relay #12-8484 Starter Solenoid #12-10581. See Attached Document for Additional Information.