When it comes to keeping your cylinder mower running smoothly, few Allett parts are as important as the drive belts. Allett lawnmower belts transfer power from the engine or motor to the cutting cylinder and rear roller, so a worn or stretched belt can lead to poor cutting performance, slipping, or total drive failure.
This guide explains the different types of Allett lawnmower belts, how to identify the right one for your machine, and which belts are most popular and most searched for by owners of Classic, Kensington, Liberty, Sandringham, Stirling, Shaver and Regal models.
Over time, belts naturally wear, crack, glaze, or stretch. This causes:
Reduced cylinder speed and uneven cutting
Slipping drive to the rear roller
Loss of power under load
Increased strain on bearings and pulleys
Replacing a belt at the first sign of wear helps restore cutting performance and prevents more expensive damage later on.
Most Allett mowers use more than one belt. The main belt types are:
Cylinder drive belts – drive the cutting cylinder
Rear roller drive belts – power the rear roller
Engine or motor drive belts – transfer power from the engine or electric motor
Timing or grooming belts – used on professional or cassette-driven models
Knowing which belt you need is essential for sourcing the correct Allett spares, as each belt performs a different role.
Below is a list of the most popular Allett belts for their most popular lawnmowers. If you need any help finding Allett spares for your machine, please feel free to contact us.
These are the most frequently replaced belts because they directly control the cutting cylinder.
F016A57941 – Cylinder Drive Belt
Fits many of the most popular domestic models, including:
Classic 12E, 14L, 17L
Kensington 12E, 14E, 14K, 17K, 20K
Liberty 30, 43
Sandringham 14E
F016J13298 – Cylinder Drive Belt (larger models)
Fits:
Stirling 43
Stirling 51
Selected later-generation cylinder mowers
AM89451 – Cylinder Drive Belt
Fits:
Shaver 20
Shaver 24
AM81499 – Cutting Cylinder Belt
Fits selected petrol and professional cylinder models, including:
Regal series
Professional Allett ranges
These belts transfer power to the rear roller and are often replaced due to debris and load stress.
F016A58728 – Rear Roller Drive Belt
Fits:
Classic petrol models
Kensington petrol models
Sandringham 14E
F016J11408 – Rear Roller Drive Belt (heavy-duty type)
Fits:
Larger Classic and Kensington variants
Selected Liberty and Regal machines
F016A58729 – Roller Drive Belt
Fits:
Classic electric models
Kensington electric models
Liberty electric models
AM89482 – Engine Drive Belt
Fits:
Petrol Classic models
Petrol Kensington models
Petrol Liberty models
Selected professional machines
F016A75062 – Electric Motor Toothed Drive Belt
Fits:
Classic 12E
Kensington 14E
Liberty 30, 43
Sandringham 14E
F016J10737 – Liberty Cylinder Belt
Fits:
Liberty 30
Liberty 43
AM81105 – Regal Timing Belt
Fits:
Regal 36
Regal 42
AM81455 – Grooming / Timing Belt
Fits:
Groomer cassette systems
Selected professional Allett models
Common Allett lawnmower models include:
Classic 12E / 14L / 17L
Kensington 12E / 14E / 14K / 17K / 20K
Liberty 30 / 43
Sandringham 14E
Stirling 43 / 51
Shaver 20 / 24
Regal 36 / 42
To make sure you order the right Allett mower spares:
Check your mower model number – usually on the chassis plate
Look up the belt part number from your manual or old belt
Match the belt type (cylinder, roller, engine or timing)
Avoid guessing by size alone – belts with similar lengths can perform very differently
Using the correct part number is the most reliable way to ensure proper fit and long belt life.
Slipping or squealing during use
Cylinder slowing down under load
Rear roller not driving consistently
Visible cracking, fraying or glazing
If any of these symptoms appear, replacing the belt promptly helps protect the rest of the drive system.
Allett lawnmower belts are essential for maintaining cutting performance and reliable drive. The most popular belts include part numbers such as F016A57941, AM89482, F016A75062, and F016A58728, covering a wide range of Classic, Kensington, Liberty, Sandringham, Stirling, Shaver and Regal models.
By identifying your mower model and matching the correct belt part number, you can restore smooth operation and extend the working life of your machine.
