3281286|Power Steering Pump for 1999 GMC Sierra 1500 4.3L - PSP1222XP757. Whether you're replacing worn-out components or tackling a complete engine overhaul, this Power Steering Pump for your 1999 GMC Sierra 1500 4.3L offers dependable fitment and meets OEM-level performance standards.. 1999 GMC Sierra 1500 4.3L Engine Power Steering Pump - PSP1222XP757 Also fits the following vehicles: 2001 GMC Sierra 1500 HD 6.0L Engine Power Steering Pump, 2002 GMC Sierra 1500 HD 6.0L Engine Power Steering Pump, 2003 GMC Sierra 1500 HD 6.0L Engine Power Steering Pump, 2005 GMC Sierra 1500 HD 6.0L Engine Power Steering Pump, 2006 GMC Sierra 1500 HD 6.0L Engine Power Steering Pump, 1999 GMC Sierra 1500 4.3L Engine Power Steering Pump, 2000 GMC Sierra 1500 4.3L Engine Power Steering Pump, 2001 GMC Sierra 1500 4.3L Engine Power Steering Pump, 2002 GMC Sierra 1500 4.3L Engine Power Steering Pump, 2003 GMC Sierra 1500 4.3L Engine Power Steering Pump, 2004 GMC Sierra 1500 4.3L Engine Power Steering Pump, 2005 GMC Sierra 1500 4.3L Engine Power Steering Pump, 2006 GMC Sierra 1500 4.3L Engine Power Steering Pump, 2001 GMC Sierra 1500 6.0L Engine Power Steering Pump, 2002 GMC Sierra 1500 6.0L Engine Power Steering Pump