Aftermarket Epiroc® L8, D50, D60, D65 Rig Parts SEARCH PART NUMBER Replaces OEM P/N: 3222 3251 79 Expanding Shaft / EXP. Axel 425 P/N 3793 Replaces OEM P/N: 3222 3117 19 Shaft 425 P/N 3035 Replaces OEM P/N: 3222 3266 21 Adjustable Boom Support Replaces OEM P/N: 3222 3494 19 Adjustable Boom Support « ‹ of 2 › »