t a  e 
REF NO. Part categories Parameter
ENGINETECH : 129000 Crankshaft
GM GENUINE : 55574335 Crankshaft
  • Engine Stroke (in): 3.251
  • Engine Stroke (mm): 82.575
  • Length (MM): 419.5
  • Main Bearing Cap Bolt Quantity: 2
  • Type: One Piece Rear Seal
ENGINETECH : 129050 Crankshaft
GM GENUINE : 12661873 Crankshaft
  • Engine Stroke (in): 3.37
  • Engine Stroke (mm): 85.598
  • Length (IN): 18.987
  • Length (MM): 482.26
  • Main Bearing Cap Bolt Quantity: 6
  • Material: Steel
  • Type: One Piece Rear Seal
ENGINETECH : 104000 Crankshaft
ENGINETECH : 104450 Crankshaft
GM GENUINE : 12623074 Crankshaft
  • Length (IN): 18.9
  • Length (MM): 480
  • Main Bearing Cap Bolt Quantity: 8
  • Main Journal Bushing Width (in): 0.54
  • Main Journal Bushing Width (mm): 13.71
  • Main Journal Diameter (in): 2.91
  • Main Journal Diameter (mm): 74
  • Material: Steel
  • Rod Diameter (in): 2.48
  • Rod Diameter (mm): 63
  • Type: Internal Balance
GM GENUINE : 12699162 Crankshaft
  • Length (IN): 18.78
  • Main Bearing Cap Bolt Quantity: 2
  • Main Journal Bushing Width (in): 0.76
  • Main Journal Diameter (in): 2.8
  • Material: Forged
  • Rod Diameter (in): 2.53
GM GENUINE : 55504614 Crankshaft
  • Length (IN): 17.83
  • Length (MM): 452.89
  • Main Bearing Cap Bolt Quantity: 10
  • Main Journal Bushing Width (in): 0.56
  • Main Journal Bushing Width (mm): 14.14
  • Main Journal Diameter (in): 2.15
  • Main Journal Diameter (mm): 54.6
  • Material: Steel
  • Rod Diameter (in): 2.03
  • Rod Diameter (mm): 51.6
  • Type: Internal Balance
GM GENUINE : 12627163 Crankshaft
GM GENUINE : 12626959 Crankshaft
GM GENUINE : 12661875 Crankshaft
  • Engine Stroke (in): 3.37
  • Engine Stroke (mm): 85.598
  • Length (IN): 18.987
  • Length (MM): 482.26
  • Main Bearing Cap Bolt Quantity: 4
  • Material: Steel Forged 1538MV
  • Type: One Piece Rear Seal
ENGINETECH : 128050 Crankshaft
ENGINETECH : 112950 Crankshaft
ENGINETECH : 112960 Crankshaft
GM GENUINE : 12619107 Crankshaft
  • Engine Stroke (in): 3.38
  • Engine Stroke (mm): 85.852
  • Length (IN): 19.737
  • Length (MM): 501.33
  • Main Bearing Cap Bolt Quantity: 4
  • Material: Forged Steel
  • Type: One Piece Rear Seal
GM GENUINE : 12661864 Crankshaft
  • Engine Stroke (in): 3.16
  • Engine Stroke (mm): 80.264
  • Length (IN): 18.894
  • Length (MM): 479.9
  • Main Bearing Cap Bolt Quantity: 4
  • Material: Steel
  • Type: One Piece Rear Seal
ENGINETECH : 128000 Crankshaft
ENGINETECH : 105110 Crankshaft
GM GENUINE : 12706018 Crankshaft
  • Height (IN): 6
  • Length (IN): 12.76
  • Main Journal Bushing Width (in): 0.76
  • Main Journal Diameter (in): 1.73
  • Material: Forged
  • Rod Diameter (in): 1.73
  • Width (IN): 8
GM GENUINE : 12588614 Crankshaft
  • Engine Stroke (in): 3.622
  • Engine Stroke (mm): 91.999
  • Length (IN): 23.835
  • Length (MM): 605.4
  • Main Bearing Cap Bolt Quantity: 6
  • Main Journal Diameter (in): 2.559
  • Main Journal Diameter (mm): 64.999
  • Material: Nodular Cast Iron
  • Rod Diameter (in): 2.1
  • Rod Diameter (mm): 53.34
  • Rod Length (IN): 6.098
  • Rod Length (mm): 154.889
  • Type: One Piece Rear Seal
ENGINETECH : 105100 Crankshaft
GM GENUINE : 12578164 Crankshaft
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    Size/Parameters

    Annotated Parameter name Size range Unit