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Home Your Search K75-39337

LiftMaster Trolley Nut Kit LA500

Item #: K75-39337

Manufacturer: Chamberlain, LiftMaster

List price: $276.90


Manuals & Brochures:
Replacement instructions, Instructions de remplacement,
DETAILS
  • The travel nut on LA500DC and LA500DCS gate operators may break when excessive force is applied to the gate such as being struck from a vehicle.
  • The travel nut can be identified as the white plastic nut that attaches to the internal lead screw of the arm.
  • The symptom of this problem is that the trolley assembly slides back and forth along the guide slots without mechanical restraint.
  • LiftMaster has created Trolley Service Kit K75-39337 with all the necessary parts and provides instructions on how to replace a damaged travel nut within an LA500 arm

Other Search Results Containing "Garage Door"
841LM-NOBOX

LiftMaster Automatic Garage Door Lock No Box Connector with 3 pins

  • Automatic operation performs in tandem with the opener so it always locks and unlocks.
  • Anywhere assurance smartphone monitoring with the MyQ® App means homeowners always know that the garage is secure
  • Absolute protection the automatic deadbolt lock makes the garage door virtually impenetrable
  • Comes included with 8500W
  • Works on models 8550WLB 8360W 8587W & WLED
  • same as Part # 001D8875
  • No warranty offered on this product. Product does not come in a box.
  • Quantities limited.
PB-001

Skylink Garage Door Wall Button

  • Install the Skylink Wall Button inside your garage.
  • Allows manual operation of your garage door opener.
  • Illuminated LED indication.
  • Easy to Install.
  • 30-foot Wire Included.
  • Mounting Hardware Included.
HTUS-DOUBLE

Stainless Steel Garage Door Top Roller Bracket 12-Gauge 2- Slot

  • Manufactured with 12ga. Rust-Resistant 304 Stainless Steel
  • Universal Design
  • Adjustable from 2"-3-1/2"
  • 2- Slot
  • Fits Most Overhead Sectional Doors
  • Priced Per Each
WD-8300

Wayne Dalton Classic Steel Garage Door ** By Quote Only

  • Heavy-gauge steel and a thick layer of insulation provides a smooth dependable operation that excels in appearance and strength.
  • R-VALUE: 12.12 / 16.12
  • WD's best-insulated residential garage doors feature two layers of steel surrounding a thick layer of foamed-in-place polyurethane insulation.
NINJA-001-BLACK

Rodent Ninja Garage Door Corner Guard Set

  • Blocks pests from entry
  • Fills in holes and gaps along garage door frame
  • Keeps insects mice and unwanted guests outdoors
  • Kit includes: (1) Right and (1) Left handed Garage Door Corner Guard (6) Self-tapping Screws
  • Made in the USA
40655R

Genie Garage Door Opener LED Bulb LEDB2-R 1/Pkg

  • LED: Long life low energy
  • Universal - works with all major brand garage door openers.
  • Eliminates or reduces remote interference.
  • Vibration and shatter-resistant up to 5Gs of shaking force.
  • Light appearance: 4000 K (neutral)
  • Brightness: 800 Lumens
  • Estimated yearly cost $1.07 per year and life expectancy of 22.8 years (based on 3 hrs/day).
  • Use only with 120VAC 60Hz Non-Dimmable circuits. Not for use with emergency exit fixtures or emergency lights.
  • Same as Model GLEDB2
98022

LiftMaster Res. Jackshaft BBU Garage Door Opener Wi-Fi for doors up to 850lbs

  • Built-in Wi-Fi for the easiest way to connect the garage.
  • MyQ mobile app lets users receive alerts and control the opener from anywhere.
  • MyQ Remote LED light can be placed anywhere to provide bright maintenance-free illumination.
  • Wall-mount design and quiet DC motor eliminate noise and vibrations through the ceiling and provides smooth operation.
  • Integrated battery backup ensures access even when the power’s out and will open and close the door twice a day for 5 days
  • Included accessories: MyQ remote LED light (827LM) Battery Backup (485LM) Automatic door lock (841LM) 3-btn remote (893MAX) Smart control panel (880LMW)
  • Garage Door Opener Capacity of up to 40 Remote Controls 4 Wireless Keyless Entry Systems and 16 MyQ Devices
  • Opener head: 21.5" H x 7.5" W x 7.9" L
  • LiftMast recommends max. Door Height: 14ft
  • LiftMast recommends max. Door Width: 18ft
  • LiftMaster recommends max. Door Weight: 850lbs
  • Headroom clearance req. :3in from center of torsion bar
Installation manualManuel d'installationProduct guideGuide de produitReceiver Logic Board Conversion ListComparison Chart
LDC801

Linear 800 Newton DC Powered Garage Door Opener Accept Both Belt or Chain Rail (LDCO801)

  • The energy-efficient DC-powered operator that runs at an AC-equivalent speed.
  • DC drive motor with soft-start and soft-stop for smooth quiet long-term reliable performance.
  • Optional Battery Backup available for added peace of mind. Sold separately
  • Low-power standby mode dramatically reduces energy consumption
  • Supplies 800 Newtons of lifting force for heavy doors
  • Compatible with belt-drive or chain-drive T or I beam rails up to 10'
  • Intelligent self-learning self-adjusting torque settings
  • 100-watt courtesy light (bulb not included)
  • Built-in MegaCode format receiver
  • Operator includes three-button MCT-3 visor transmitter and deluxe illuminated wall station
Remote compatibility chart
821LMB-2SENSOR

LiftMaster MyQ Smart Garage Door Add-On Sensor Backwards Compatible

  • This add-on door sensor works with the myQ Smart Garage Hub to monitor and control a second garage door opener.
  • This version of the myQ door sensor is only compatible with the new myQ Smart Garage Hub by LiftMaster Model 821LMB
  • Replaces both 821LM-SENSOR and 821LMB-SENSOR and can be used as a replacement for either one
  • Also known as: 821LM-SENSOR 041D7924-1
LDCO863B

Linear DC Powered Garage Door Opener Accepts Both Belt or Chain Rail

  • Ultra-Smooth and Quiet Industry leading performance with variable speed operation soft start/stop and ultra quiet motor
  • Integrated Battery Backup Energy-Efficient LED Lighting Long life dimmable LED light panels included. Secure.
  • Responsive Remote Control Linear MegaCode remote controls operate over long range and employ high-security technology
  • Release the operator’s quick-disconnect trolley to open or close the garage door manually
  • Self-Diagnostic System: Confirms proper operation and alerts users both audibly and flashing the lights. In the event of a problem it pinpoints the trouble and alerts users by flashing the courtesy lights
  • Linear ® Smart App Advanced real-time monitoring and control of garage doors from any mobile device. * Assign custom access and permissions for up to 10 authorized users and schedule door and light operation.*Wi-Fi and internet connection required
  • Comes with: (1) MTS3 3-B remote Wi-Fi Multi-Function Wall Control Station Safety Eyes
Remote compatibility chart
GD-WAX

Devanco Canada Garage Door Wax 467g Aerosol

  • Ozone Friendly Door Wax with anti-wear and extreme pressure additives.
  • Silicone Free
  • Aerosol Wax that sprays on and buffs effortlessly to create hard shell finish. •Excellent wax for anything that needs reviving shines all painted surfaces.
  • 16.5 oz Cans
  • Available for private label
Safety data sheetFiche de données de sécurité
LDCO850

Linear 800 Newton Smart DC Powered Garage Door Opener spott Wi-Fi Accept Both Belt or Chain Rail

  • The energy-efficient DC-powered operator that runs at an AC-equivalent speed.
  • DC drive motor with soft-start and soft-stop for smooth quiet long-term reliable performance.
  • Optional Battery Backup available for added peace of mind. Sold separately
  • Low-power standby mode dramatically reduces energy consumption
  • Supplies 800 Newtons of lifting force for heavy doors
  • Compatible with belt-drive or chain-drive T or I beam rails up to 10'
  • Intelligent self-learning self-adjusting torque settings
  • 100-watt courtesy light (bulb not included)
  • Built-in MegaCode format receiver Wi-Fi Connectivity with spott and Linear PRO Access mobile app
  • Operator includes three-button MTR3 visor transmitter and WWS850 multi-function Wi-Fi wall station
Remote compatibility chart
821LMB

LiftMaster MyQ Garage Universal Smartphone Garage Door Controller Second Generation *** To extent of Inventory. Repl 821LMC-S

  • Enables smartphone control of most major brands of garage door opener with photoeyes.
  • Includes Wi-Fi hub and door sensor
Sell sheetBrochure
RB709U-NB

Linear GTO Garage Door Receiver Adapter Mighty Mule

  • The RB709 Garage Door Opener Adapter enables the Mighty Mule transmitters to open and close almost any garage door opener
  • Made to be used with the FM134 (two button) and the RB743 (three button) remote control transmitters or F310 Keypad
  • Easy to install with almost any garage door opener
  • One RB709 is needed for each garage door opener that will be controlled by the Mighty Mule transmitters
8010-8FT

LiftMaster DC Chain / Cable Drive Garage Door Opener with 8ft SSR Rail (1608LM) ***No Longer Available

  • Customized DC Motor with soft start/stop action.
  • Chain/cable square steel rail (SSR) system for efficient operation and standard performance.
  • Security+2.0 increases remote control range and reduces interference for consistent operation.
  • PosiLock® electronically protects against forced openings.
  • The Protector System® invisible light beam auto-reverses the door if there is an obstruction.
  • Comes with: Door Control Button (883LM) 1-Button Remote Control (891LM)
  • Not MyQ
8010-7FT

LiftMaster DC Chain / Cable Drive Garage Door Opener with 7ft SSR Rail (1607LM) ***No Longer Available

  • Customized DC Motor with soft start/stop action.
  • Chain/cable square steel rail (SSR) system for efficient operation and standard performance.
  • Security+2.0 increases remote control range and reduces interference for consistent operation.
  • PosiLock® electronically protects against forced openings.
  • The Protector System® invisible light beam auto-reverses the door if there is an obstruction.
  • Comes with: Door Control Button (883LM) 1-Button Remote Control (891LM)
  • Not MyQ
8010

LiftMaster DC Chain / Cable Drive Garage Door Opener ***Discontinued***

  • Customized DC Motor with soft start/stop action.
  • Chain/cable square steel rail (SSR) system for efficient operation and standard performance.
  • Security+2.0 increases remote control range and reduces interference for consistent operation.
  • PosiLock® electronically protects against forced openings.
  • The Protector System® invisible light beam auto-reverses the door if there is an obstruction.
  • Comes with: Door Control Button (883LM) 1-Button Remote Control (891LM)
  • Not MyQ
8065

LiftMaster Contractor Series 1/2 HP AC Chain Drive Garage Door Opener **DISCONTINUED

  • MyQ® Technology enables you to securely monitor and control your garage door opener and houselights with your smartphone tablet or computer.
  • 1/2 HP AC motor with industrial-strength chain drive provides steady performance and lifting power.
  • Security+ 2.0™ safeguards your household – with every click a new code is sent to the garage door opener so that the door opens only for you.
  • The Protector System® has safety sensors that project a light beam across the garage door opening automatically reversing the door if anything interrupts the beam.
  • Comes with: 1-Button Remote Control (891LM) Door Control Button (883LM)
8500W

LiftMaster Res. Jackshaft BBU Garage Door Opener Wi-Fi ***No Longer Available

  • Built-in Wi-Fi for the easiest way to connect the garage.
  • MyQ mobile app lets users receive alerts and control the opener from anywhere.
  • MyQ Remote LED light can be placed anywhere to provide bright maintenance-free illumination.
  • Wall-mount design and quiet DC motor eliminate noise and vibrations through the ceiling and provides smooth operation.
  • Heavy-lifting power operates doors up to 850 lbs.
  • Integrated battery backup ensures access even when the power’s out and will open and close the door twice a day for 5 days
  • Included accessories: MyQ remote LED light (827LM) Battery Backup (485LM) Automatic door lock (841LM) 3-btn remote (893MAX) Smart control panel (880LMW)
  • Garage Door Opener Capacity of up to 40 Remote Controls 4 Wireless Keyless Entry Systems and 16 MyQ Devices
  • Can be installed on either RH or LH side of the door
Installation manualManuel d'installationSell sheetBrochureProduct guide
HTLS

Stainless Steel Garage Door Low Headroom Top Bracket 12-Gauge Sold per Piece

  • Manufactured with Heavy Duty 12ga. Rust-Resistant 304 Stainless Steel
  • Universal Design.
  • Fits Most Overhead Sectional Doors
  • Use for Low-Headroom Doors Only
  • 5-3/4” tall x 2-1/2” wide
  • Priced Per Each
841LM

LiftMaster Automatic Garage Door Lock Connector with 3 pins

  • Automatic operation performs in tandem with the opener so it always locks and unlocks.
  • Anywhere assurance smartphone monitoring with the MyQ® App means homeowners always know that the garage is secure
  • Absolute protection the automatic deadbolt lock makes the garage door virtually impenetrable
  • Comes included with 8500W
  • Works on models 8550WLB 8360W 8587W & WLED
  • same as Part # 001D8875
39438R

Genie Garage Door Opener LED Bulb LEDB1-R 1/Pkg

  • Unlike other LED and CFL bulbs this bulb will reduce or eliminate radio frequency interference
  • Uses 10 watts but equivalent to a 60-watt bulb
  • Works with almost all garage door openers
  • Lasts up to 25000 hours
  • Shatter-resistant vibration-resistant
  • Cold weather rated up to -30C
  • Damp location rated
LDCO800

Linear 800 Newton DC Powered Garage Door Opener Accept Both Belt or Chain Rail *Replaced by LDCO863B*

  • The energy-efficient DC-powered operator that runs at an AC-equivalent speed.
  • DC drive motor with soft-start and soft-stop for smooth quiet long-term reliable performance.
  • Optional Battery Backup available for added peace of mind. Sold separately
  • Low-power standby mode dramatically reduces energy consumption
  • Supplies 800 Newtons of lifting force for heavy doors
  • Compatible with belt-drive or chain-drive T or I beam rails up to 10'
  • Intelligent self-learning self-adjusting torque settings
  • 100-watt courtesy light (bulb not included)
  • Built-in MegaCode format receiver
  • Operator includes three-button MCT-3 visor transmitter and deluxe illuminated wall station
Installation manualSell sheetRemote compatibility chart
EQ2712

SkyLink 3/4 HP Garage Door Opener with 1 Remote ** Discontinued

  • The DC motor offers additional benefits with very quiet operation and much less vibration.
  • It is ideal for garage doors that are below a living room or bedroom.
  • The DC motor also offers the soft start soft stop features which reduces the vibration and wear and tear of all the mechanical parts
  • Features: Rolling Code Technology Soft Start Soft Stop Optimal Force Learnings and Safety Beam Sensors.
  • Available in either Belt or Chain drive
Installation manualSell sheet
85870WL

LiftMaster Elite Series 3/4HP AC Chain Drive Wi-Fi Lock Garage Door Opener **discontinued** replaced by 4690L

  • MyQ® Technology now with Wi-Fi enables secure monitoring and control of your garage door opener with a smartphone tablet or laptop.
  • P3™ Motors provide proven reliability and durability.
  • ¾ HP AC Motor Chain Drive System is built to provide maximum power to lift the heaviest doors including carriage house and solid wood.
  • I-Beam Rail System and reinforced chassis with chain drive provides maximum support.
  • Security+ 2.0® safeguards garage access – with every click a new code is sent to the garage door opener ensuring the door does not inadvertently open.
  • Timer-to-Close automatically closes the door after a pre-programmed number of minutes.
  • Motion Detector is integrated into the Smart Control Panel® providing rapid detection and illumination of garage.
  • Includes: 3-Button Remote Control (893MAX) and Smart Control Panel®
  • Will accept 40 remotes & 4 keypads
Receiver Logic Board Conversion ListComparison Chart
HTUS

Stainless Steel Garage Door Top Roller Bracket 12-Gauge Single Slot

  • Manufactured with 12ga. Rust-Resistant 304 Stainless Steel
  • Universal Design
  • Adjustable from 2"-3-1/2"
  • Fits Most Overhead Sectional Doors
  • Priced Per Each
EQ2722

SkyLink 3/4 HP Garage Door Opener with 2 2-Btn Keychain Remotes ** Discontinued

  • The DC motor offers additional benefits with very quiet operation and much less vibration.
  • It is ideal for garage doors that are below a living room or bedroom.
  • The DC motor also offers the soft start soft stop features which reduces the vibration and wear and tear of all the mechanical parts
  • Features: Rolling Code Technology Soft Start Soft Stop Optimal Force Learnings and Safety Beam Sensors.
  • Available in either Belt or Chain drive
  • Includes two 2-btn keychain remotes # MK318-2
Installation ManualSell Sheet
SSNT-1

Super Sneaky Low Headroom Garage Door Hinge No Tabs Sold as a Pair

  • SSNT version designed to accommodate top panel struts. Eliminates troublesome & costly double track kits.
  • No tab design for doors with built-in or requiring a top panel strut
  • 100% effective in 6" headroom
  • Provides maximum headroom clearance & smooth operation
  • Self positioning easy install & works on all residential doors
  • Works with all draw bar type automatic operators
  • Effective on manual opening up to 7′ door heights
  • When doubled up effective on HD commercial applications
LD050

Linear 1/2 HP Deluxe Single Lamp Residential Garage Door Opener - Rails extra ***No Longer Available

  • Compatible with belt-drive or chain-drive T or I beam rails up to 10'
  • Rock solid performance
  • Diagnostic system indicates six possible trouble conditions
  • 100-watt courtesy light (bulb not included)
  • Built-in MegaCode format receiver
  • All operator controls and indicators on one side
  • Operator includes three-button MTR-3 visor transmitter and deluxe wall station
Installation ManualUser ManualSell SheetRemote compatibility chart
821LM

LiftMaster MyQ Garage Universal Smartphone Garage Door Controller

  • Enables smartphone control of most major brands of garage door opener with photoeyes.
  • Includes Wi-Fi hub and door sensor
Installation ManualManuel d'InstallationSell SheetBrochure
8500C

LiftMaster Residential Jackshaft Garage Door Opener ***No Longer Available

  • MyQ technology enables you to securely monitor and control your garage door opener and houselights with your smartphone tablet or computer
  • Alerts can be received as email or pop-up (push) notifications on your mobile device so that you always know the status of your garage door and houselights
  • MyQ mobile app is a free download requiring no annual activation fee requires 828lm
  • Wall mount design with an ultra-quiet 3/4 HP soft start-soft stop DC electric motor
  • Frees the garage ceiling of hanging operators and rails and opens up the space for additional storage – ideal for cathedral or obstructed ceilings
  • Remote light (380LM) delivers 200 watts of light with adjustable light time delay
  • Electric dead bolt ensures the door is securely locked
  • Timer-to-Close (889LM) can easily be activated to ensure the door doesn't accidentally remain open
  • Includes a 3-btn Elite remote control (893MAX)
  • Lifetime motor and 5-year parts warranty
  • Will accept 12 remotes & 4 keypads
GAREX

Garex Premium Garage Door 1-3/4

  • specify size color details when ordering
  • Please call for pricing
GP23A

ALK12V 12V battery for Garage Door Remotes

LINEAR-661

NICE Smart Residential DC Garage Door Opener Linear 661 BBU

  • Quiet DC Motor: Robust DC motor with soft/stop providing quiet and smooth operation
  • Smartphone Control: Use the Nice G.O. App from you Apple or Android smartphone to open/close your door operate the light confirm door status and more
  • Integrated Rechargeable Battery: Worry free operation during a power outage the Nice Linear 661 will continue to operate for up to three days without power. CA SB-969 compliant. Length of operation varies based on door weight and frequency of operation
  • Energy Efficient LED Lighting: Illuminate your garage with integrated LED lighting
  • Backlit Wall Controller: Blue lighting illuminates the wall controller for easy operation in the dark
  • Wi-Fi Connectivity Status Bar: Status bar on the Nice Wallstation confirms the device is connected to your home network
  • Belt or Chain Drive
  • For residential sectional doors up to 8ft
  • Quick Limit Setting – Limits preset for a 7′ door reduce installation time
Installation Manual Manuel d-Installation