Only part number is the unique ID. Turbine wheel - K18 high temperature alloy steel. All cartridges are balanced well and include a balancing report in package.
6510900880, 6510904780, 6510902280, 6510904880, 6510905280, 6510900980. Turbo cartridge for Mercedes Sprinter II 2.2 CDI 129-163HP 95-125Kw OM651DE22LA 2009. Turbo cartridge for Mercedes 220 2.2 CDI 95Kw 129HP OM651DE22LA 2009.
Turbo cartridge for Mercedes 250 2.2 CDI 163HP 125Kw OM651DE22LA 2009. Turbo cartridge for Mercedes CLK GLK 2.2 CDI 170HP 125Kw OM651DE22LA 2009.