Description
Overview:
The Crankshaft Input Gear is a genuine Villiers component for C12 and MK12 engines fitted with a 3:1 reduction gearbox. Made from robust, precision‐machined steel, it transfers drive from the crankshaft into the reduction unit, helping the engine deliver smooth, reliable power. This is unused old stock supplied to original manufacturing standards, so it remains functionally as new, though minor surface tarnish may be present from age. It is a direct replacement for worn or damaged gears and is suitable for workshop maintenance or full restorations of older machinery powered by these Villiers engines. Choose this OEM gear to keep your drivetrain within specification and to maintain correct meshing and ratio control within the 3:1 reduction assembly.
Key Features:
- Genuine Villiers part for assured fit and compatibility with 3:1 reduction gearboxes
- Correct tooth form and dimensions for C12 and MK12 assemblies
- Durable, machined steel construction for long service life
- Unused old stock; preserved OEM quality with potential light tarnishing only
- Direct replacement with no modification when used with the matching 3:1 unit
- Helps restore smooth, efficient power transfer and reduces drivetrain chatter
- Supports reliable meshing to protect mating gears in the reduction box
- Suitable for routine servicing, rebuilds, and vintage engine restorations
- Practical to fit with standard workshop tools and methods
Typical Applications:
Used during engine overhauls or gearbox services on Villiers C12 and MK12 engines equipped with 3:1 reduction gear. Ideal when replacing worn, chipped, or noisy input gears to improve drive efficiency and protect the reduction unit. Common in small industrial, construction, and horticultural equipment where Villiers engines are used, including restoration projects and preventative maintenance programmes.
Also known as:
Crankshaft drive gear, reduction input gear, drive pinion, primary drive gear, crank pinion, engine drive gear, gearbox input gear, reduction box input pinion. These terms refer to the same component that transfers crankshaft torque into the 3:1 reduction assembly.
Fits Models:
C12, MK12
Alternate Part Numbers:
25636
