07-12 1500 SIERRA SILVERADO INSTRUMENT CLUSTER SPEEDOMETER 28103111 25861666 OEM Featured Products Some of those tests/repairs are

Some of those tests/repairs are listed below: Relays which typically fail in these units have been replaced

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you need to make sure the vehicle's coils have been replaced with Motorcraft DG514 and the spark plugs have been replaced with Motorcraft SP433 before the ECM is installed

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07-12 1500 SIERRA SILVERADO INSTRUMENT CLUSTER SPEEDOMETER 28103111 25861666 OEM Featured Products Some of those tests/repairs arePart Number 28103111 and 25861666 Mileage FREE MILEAGE PROGRAMMING 109,999 ***WE OFFER FREE ODOMETER PROGRAMMING*** Simply notate the mileage you need programmed into the cluster at the time of checkout using the "message to seller" box and our techs will take it from there. Due to eBay's strict shipping policies if we do not hear from you the cluster will ship the next business day with the pictured mileage. Fitment Will fit the following vehicles