The Worcester Bosch 87161066630 MT10 mechanical timer is a genuine OEM control accessory designed to provide simple time-based heating scheduling for compatible Worcester Bosch Greenstar boilers. As a plug-in mechanical programmer, it allows users to set daily on/off heating periods using easy-to-adjust dials and segments, giving basic time-control capability without the need for digital displays or advanced programming menus. Built to original equipment standards, the MT10 offers reliable, intuitive operation that supports energy-efficient heating routines in domestic installations.

This mechanical timer is compatible with selected Worcester Bosch Greenstar boilers and control systems that support the MT10 interface and list part number 87161066630 in their documentation. Compatibility can vary by boiler series, control panel configuration and installation type, so it’s recommended to confirm fit using your boiler’s exact model number and GC number before purchase.

Key features of the Worcester Bosch 87161066630 MT10 mechanical timer include genuine Worcester Bosch manufacture for assured quality and compatibility, straightforward mechanical dial scheduling for basic daily heating on/off control, robust construction suited to everyday use, seamless integration with supported Greenstar control systems, and dependable performance when installed by a qualified heating engineer during system setup or retrofit.