Anyone out there know who originally made piston rings and bearings for the B23E in 1981? I've checked prices with my dealer for rings, bearings, gaskets (full set), water pump, and clutch and received major sticker shock. I can buy Cat diesel parts cheaper! I got some prices from OEM Volvo parts on the west coast and they seem quite reasonable. Has anyone used parts from these folks and are they of original equipment quality? Thanks in advance, Larry.