ITEM NAME:Oil Pump Worm Gear Spur Wheel fit for Stihl 038 MS380 MS381 Chainsaw 11196407100 Oil Pump Worm Gear & Spur Wheel Set Fit For Stihl 038 MS380 MS381 Chainsaw 1119 640 7100 1119 642 1501 SPECIFICATIONS.Oil Pump Worm Gear & Spur Wheel Set Fit For Stihl 038 MS380 MS381 Chainsaw 1119 640 7100 1119 642 1501. Compatible With: fit for Stihl 028, 038, MS380, MS381 Chainsaw. Manufacturer Part Number: 1119 642 1501 (Spur Gear).