Allett Lawnmower Belts | Popular Models & Part Numbers

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Allett Lawnmower Belts – Complete Buying Guide & Popular Part Numbers

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.

Why Replacing Your Allett Belt Matters

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.

Types of Allett Lawnmower Belts

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.

Most Popular & Most Searched Allett Lawnmower Belts

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.

Cylinder Drive Belts

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

Rear Roller Drive Belts

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

Engine & Motor Drive Belts

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

Specialty & Timing Belts

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

Popular Allett Models Covered

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

How to Choose the Correct Allett Lawnmower Belt

To make sure you order the right Allett mower spares:

1. Check your mower model number – usually on the chassis plate
2. Look up the belt part number from your manual or old belt
3. Match the belt type (cylinder, roller, engine or timing)
4. 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.

Signs Your Allett Belt Needs Replacing

• 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.

Summary

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.