Oregon 78-055 Idler Pulley for Murray 690387MA





Outer Diameter 4-3/4"

Flat Outer Diameter 4"

Flat Width 3/4"

Bore .669"

Type Steel

Product Description

Pulleys work hard to transfer power from a mower's engine to its cutting blades, but an Oregon® pulley works harder faster.

Product Details

  • For deck belt on many 38-46" decks
  • Outer Diameter: 4-3/4", Flat Outer Diameter: 4"
  • Oregon® Part 78-055
  • Replaces: Murray 690387MA

Replaces the Following OEM Part Numbers:



Fits the Following Models:


2690892, 2690997, 2690998, 2690999, 2691197-00, 2691198-00, 2691199-00, 2691226, 2691227, 312000x68A, 312000x68B, 312000x98A, 312000x98B, 312001x11A, 312001x50A, 312001x50B, 312001x50C, 312002x98A, 312002x98B, 312003x50A, 312003x50B, 312004x68A, 312006x190A, 312006x190B, 312006x50A, 312006x50B-SW, 312006x78B, 31200x11A, 31200x11B, 31200x50A, 31200x50B, 31200x50C, 31201x51A, 31201x51B, 31201x51C, 31201x98A, 31201x98B, 31201x98C, 385000x68A, 385000x68B, 385001x51A, 385002x108A, 385002x50A, 385002x78A, 385002x98A, 385003x52A, 385004x52A, 385008x51A, 385008x51B, 385008x52A, 385008x52B, 385009x98A, 385009x98B, 385011x50A, 385011x50B, 385011x50C, 385012x68A, 385012x68B, 385013x51A, 385014x98A, 385014x98B, 385015x50A, 385015x50B, 385015x50C, 385016x78A, 38501x50D, 38501x50E, 385021x53A, 38502x70A, 38510x50B, 38516x53B, 38516x53C, 38516x53D, 385300x30A, 38560x181A, 38560x181B, 38560x81A, 387000x00A, 387000x92A, 387001x00A, 387002x83A, 387002x92A, 387002x92C, 387002x92D, 387002x92NA, 387003x8A, 387004x48A, 38710B, 38710x52A, 38710x99A, 38711x20B, 38711x20C, 38711x29B, 38711x42A, 38711x44A, 38711x66C, 38711x67B, 38711x67C, 38711x73B, 498 Models

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