One (1) turbocharger compressor wheel for Chevrolet and GMC 6.5 liter turbodiesels. Will also fit Hummers with the Chevy 6.5 turbodiesel. The turbo used in the 6.5 was an IHI RHC6. GM had slight variations of the 6.5 diesel turbocharger and they were named GM-1, GM-2, GM-3, GM-4, GM-5, GM-6 GM-8. Part number is 170238 or NH265520. This compressor wheel will fit all of these turbos. The dimensions of the wheel are: Exducer 70.00mm; Inducer 51.3mm and shaft bore size 7.0mm. This is a brand new wheel and is precision balanced. Buyer pays $4.00 shipping within the USA. Worldwide shipping cost is $8.00. Paypal accepted.