gearbox rebuild

Follow the builds on Instagram The parts shop is taking a break and will be back in 2027. Chris is busy working on some exciting custom builds. Follow along on Instagram to watch the progress, and email cwest@nortoncommando.com to talk about a custom build.

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064639 – Norton Commando 850 MK3 Gearbox 2nd Gear Mainshaft (from Engine #306591)
$91.99
Norton Commando 850 MK3 Gearbox 2nd Gear Mainshaft – Part Number 064639 Norton Commando 850 gearbox 2nd gear mainshaft (Part# 064639) — correct replacement for the MK3 850 gearbox from engine number 306591 onwards. This is the correct second gear mainshaft (part number 064639) for the Norton Commando 850 MK3 gearbox, introduced from engine number…

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064639 – Norton Commando 850 MK3 Gearbox 2nd Gear Mainshaft (from Engine #306591)