DENSO T20PR-U15 Spark Plug Set 5037 GMC Buick Chevrolet Oldsmobile Pontiac

This six-pack contains DENSO T20PR-U15 spark plugs, part number 5037, designed for GMC, Buick, Chevrolet, Oldsmobile, and Pontiac vehicles that specify the T20PR-U15 plug. The set includes six individual plugs intended for ignition maintenance, replacing worn or misfiring units to restore proper combustion in compatible GM engines. The T20PR-U15 designation indicates the exact specification used by these models, helping ensure consistent heat range, reach, and fit across all six cylinders when installed as a matched kit. Each plug in this kit is intended for direct installation in engines that require the T20PR-U15 part, simplifying service by providing a complete replacement in one package. This listing is strictly the 6-plug kit with part number 5037; confirm your vehicle’s service manual or parts diagram to verify fitment to your GMC, Buick, Chevrolet, Oldsmobile, or Pontiac model that calls for T20PR-U15.