NMT2218A PLATE CAM CHAIN TENSIONER THICK OUTER 1971 TO 1974

Norton Commando cam chain tensioner thick outer plate (part number NMT2218A) — the correct thick outer tensioner plate for Norton Commando 750cc and 850cc engines produced from 1971 to 1974. This is a direct replacement for the cam chain tensioner assembly used on Commando engines during this production period.

The cam chain tensioner on the Norton Commando keeps the timing chain at correct tension throughout the engine’s operating range. The outer plate is a wear item that should be inspected and replaced as part of any top-end or cam chain service. Using the correct cam chain tensioner thick outer plate ensures proper tensioner function and helps prevent premature cam chain wear or timing issues.

This thick outer plate variant (NMT2218A) is specific to the 1971–1974 production period. It is not interchangeable with the later thin plate version used on post-1974 models, so confirm your engine year before ordering.

Key Features:

• Correct thick outer plate for Norton Commando cam chain tensioner — 1971 to 1974
• Direct replacement for original tensioner assembly
• Part number: NMT2218A
• Fits Norton Commando 750cc and 850cc engines (1971–1974)
• Not for use on post-1974 models which use the thin outer plate

Fitment:

• Norton Commando 750 & 850 (1971–1974)
• Does not fit 1975 onward models