928 104 328 51 - Valve Guide - 1st Oversize
Valve Guide - 1st Oversize - OD = 13.14mm
1978 to 1982 - 4.5L 16v Both USA/CAN/ROW - M28.01, M28.02, M28.03, M28.04, M28.09, M28.10, M28.13, M28.14, M28.15, M28.16, M28.18
#8 on the PET Drawing
Valve stem seal is 911 104 193 03