Welcome to Zachrome: Marine Guides and Seats...

Supplying the Marine 4-stroke industry for over 50 years

Marine Guides & Seats have over 50 years experience in supplying to the marine market. Manufacturing in the UK to exacting tolerances and material standards. Providing OEM specification parts that are metallurgically, geometrically and dimensionally precise.

MGS offers a wide range of products and Engine Types for the most demanding engine applications and have helped develop the industry standard, supplying the marine market, both 2 & 4 stroke for many years. If you have purchased guides or seats in the past, it is possible you are already using our products.

If you cannot find the Engine Type for the Guide or Seat you require, please contact us for a quotation as we can manufacture any product, and the list provided is not exhaustive.

Our manufacturing experience, metallurgical knowledge and process control are your peace of mind.

MGS Guides and Seats
  • 50 years experience in supplying to market
  • OEM Specification
  • Metalurgically
  • Geometrically
  • Dimensionally

Inlet / Exhaust Valve Seats

Inlet / Exhaust Valve Guides

MGS Exhaust Valve Seats are engineered to exacting tolerances and OEM specification.


Inlet / Exhaust Valve Guides

Inlet / Exhaust Valve Seatss

MGS Exhaust Valve Guides are engineered to exacting tolerances & OEM specification.


ISO Accreditation Backed with the quality assurances of ISO 9001 and ISO 14001.