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Replacement Swing Gate Motor – Suitable for Chamberlain Liftmaster SUB300 Underground Operator

This high-quality replacement swing gate motor is designed as a suitable spare for systems using the Chamberlain Liftmaster SUB300 underground operator. Built for strength, smooth performance and long service life, it’s a smart way to restore reliability without changing your entire gate system.

  • Suitable replacement for SUB300 underground operators (non-OEM)
  • Powerful, smooth and quiet operation
  • Weather-resistant build for outdoor use
  • Cost-effective repair vs full system replacement
Trusted Supplier for Over 20 Years
Key Benefits
  • Suitable spare for systems using the Chamberlain Liftmaster SUB300 underground operator
  • Durable construction for long service life

  • Product Introduction

    This replacement swing gate motor is designed as a suitable spare for systems using the Chamberlain Liftmaster SUB300 underground operator. Built for strength, reliability, and smooth performance, it’s an excellent option when your existing motor is worn or faulty.

    Key Benefits

    • Strong, durable motor designed for long service life

    • Smooth and quiet operation for residential or commercial gates

    • Reliable performance even in demanding weather conditions

    • Suitable for heavy-duty swing gates

    • Cost-effective way to restore your gate system

    Technical Features

    • Electromechanical underground swing gate motor

    • High protection rating – built to resist dust and water

    • Optimised torque output for reliable gate movement

    • Low-maintenance design, reducing servicing needs

    • Straightforward installation for qualified gate engineers

This listing is for one 230v underground gate motor only - not for a kit. This motor can also be used as a direct replacement for first generation Proteco Shark® motor or Terra

3 Year motor warranty

FREE DELIVERY IS TO THE BRITISH MAINLAND AND MAY EXCLUDE HIGHLANDS AND ISLANDS - any additional carriage charges will show at checkout.

Please see our Business seller information on the listing if you need these sent to you or require any other pre sales tech support
Full telephone support if needed 3 years warranty on all parts

FREE DELIVERY IS TO THE BRITISH MAINLAND ONLY. Collection by arrangement is fine if you wish. Shipping to IOM, Irish Republic, Northern Ireland & Highlands and Islands will be at a cost of £35 please enquire for other destinations.

We also sell Sliding & above ground motors, Intercoms and a full range of accessories for gate automation Our underground motors come complete with hot dipped galvanised foundation cases to protect from corrosion. for further details see our other listings.