Liftmaster K03-8024-K Reversing Contactor

Reversing Contactor for Commercial Operators

The LiftMaster K03-8024K Reversing Contactor is a factory-original replacement component designed to control motor direction in commercial gate and barrier operator systems. Engineered for high-cycle environments, this dual contactor module manages both forward and reverse motor functions, ensuring reliable and consistent gate performance. Compatible with multiple LiftMaster operator models - including SL575GL, SL585GL, BG790, and MGJ—the K03-8024K is essential for maintaining safety, motion control, and long-term operator reliability.

Also referenced under part numbers: 03-11112, 038024K, 03-8024-K, G038024K, 03-8024K, and 38024K.

Key Features

• Dual contactor design – Controls forward and reverse motor operation in AC-powered systems
• OEM replacement – Matches factory specifications for LiftMaster commercial gate operators
• Reliable switching performance – Built for high-use commercial and industrial environments
• Essential safety component – Supports direction control and overload protection logic
• Works with multiple models – Fits SL575GL, SL585GL, BG790, MGJ, and more

Technical Specifications

• Part Number: K03-8024K
• Also Known As: 03-11112, 038024K, 03-8024-K, G038024K, 03-8024K, 38024K
• Component Type: Reversing contactor
• Function: Motor direction switching (forward/reverse)
• Voltage: 24V coil, 50/60Hz
• Compatible Operators: LiftMaster SL575GL, SL585GL, BG790, MGJ
• Included: Contactor assembly only

Conclusion

The LiftMaster K03-8024K Reversing Contactor is a critical component in maintaining safe, efficient gate movement in commercial operator systems. Designed to OEM standards and compatible with LiftMaster’s most trusted commercial models, this contactor ensures directional control and operational stability in every cycle.