CAT C13 Injector 10R-2977 EX632977Reman Delphi Injector For CAT C13 Engines With Electronic Unit Injectors. Note: A $150. 00 refundable core charge is due. We will email you a paypal invoice for the core charge that will be refunded upon receiving the old rebuildable core. Testing Service Available For This Injector $55. 00 Each External Seal Kit Part # HTK112 Cross References: 10R2977 10R 2977 10R2977R 2490708 249 0708 632977 EX632977