• Smooth-barrel cylinder and cog serve as fastening pivot for operator arm
  • Usually Ships 4 to 7 Business Days
  • MSRP: $180.73
    $164.30
    (You Save $16.43)
LiftMaster

LiftMaster K77-36539 Output Shaft and Sprocket Kit

SKU:
K77-36539
MSRP: $180.73
$164.30
(You Save $16.43)
  • Smooth-barrel cylinder and cog serve as fastening pivot for operator arm
  • Usually Ships 4 to 7 Business Days
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LiftMaster
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The LiftMaster K77-36539 Output Shaft and Sprocket Kit is a genuine OEM replacement kit designed for residential and commercial gate operators. Built with weather-resistant materials, this kit restores reliable drive performance to your gate system.

Kit Contents

  • Smooth-barrel cylinder shaft with sprocket

  • #35 limit chain

  • APS sprocket roll pin

Compatibility

  • LiftMaster RSW12UL residential swing gate operators

  • LiftMaster CSW24U commercial swing gate controllers

Product Specifications

Limit Sprocket:

  • Width: 1-5/8"

  • Height: 1/2"

  • Inside Diameter: 1/2"

  • Teeth: 12

Limit Cup:

  • Width: 4-1/2"

  • Height: 1-1/4"

  • Inside Diameter: 1-1/8"

  • Teeth: 36

Output Shaft:

  • Height: 3-3/16"

  • Diameter: 2-7/16"

  • Inside Diameter: 1-1/8"

Chain:

  • Length: 68 pitches

The LiftMaster K77-36539 kit provides everything needed for a complete output shaft and sprocket replacement, ensuring long-term durability and smooth operation for RSW12UL and CSW24U gate operators.


K77-36539-MANUAL.pdf


K77-36539-MANUAL.pdf

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