Description
Overview:
The Belt Tensioner Handle is a genuine Husqvarna spare designed to control and maintain correct belt tension on ride-on mowers such as the RC318T and RC320TS AWD. Built from robust metal with a protective finish, it provides a positive, reliable lever action that helps the drive belt track correctly, reducing slip, noise, and premature wear. This handle interfaces with the mower's original linkage and spring arrangement for a precise fit, restoring smooth engagement when a worn or bent handle is replaced. It supports consistent cutting performance, protects belt life, and helps keep the deck drive operating as designed. Identified as OEM No. 504 62 21-03, it is suitable for professional users and homeowners seeking dependable, manufacturer-approved components for routine maintenance or repair.
Key Features:
- Genuine Husqvarna OEM part (504 62 21-03) for assured fit and function
- Durable metal construction with protective finish for long service life
- Helps maintain correct belt tension to minimise slip and wear
- Smooth, positive lever action for consistent deck drive engagement
- Accurate geometry to suit factory linkage and spring hardware
- Corrosion-resistant surfaces for outdoor and workshop environments
- Direct replacement with no modification required
- Straightforward installation using standard hand tools
- Supports routine servicing, belt changes, and setup checks
- Suitable for professional grounds care, hire fleets, and domestic users
Typical Applications:
Used to replace a damaged or worn tensioner handle on Husqvarna RC-series ride-on mowers, restore reliable belt tensioning after impacts or heavy use, and support seasonal servicing. Suitable for machines working on estates, sports grounds, commercial sites, and larger gardens where consistent drive and cutting performance are required throughout the mowing season.
Also known as:
Belt adjuster lever, belt tension control handle, deck drive lever, drive belt engagement handle, deck tension handle, mower belt lever, belt positioning handle, deck engagement lever, rider belt lever, tension control arm.
Fits Models:
RC 318T Rider, RC 320Ts AWD Rider, RC318T, RC318T Rider, RC320TS AWD, RC320TSAWD, RC320TsAWD Rider
Alternate Part Numbers:
504 62 21-03, 504622103
Product Specifications
| L&S Part No. | 504 62 21 03 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Husqvarna |
| OEM No. | 504622103 |
| Unit of Sale | 1 |
| Machine Type | Mowers |
| Fits Brands | Husqvarna |
| Key Features | - Genuine Husqvarna OEM part for assured fit and function - Durable metal construction with protective finish - Maintains correct belt tension to minimise slip and wear - Accurate geometry suits factory linkage and spring hardware - Fits RC 318T and RC 320TS AWD models |
| Fits Models | RC 318T Rider | RC 320Ts AWD Rider |
Reviews
Ask a Question
Compatibility
Customers also bought
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
Related Products
-
![]()
Key Steel (Imperial) Length: 12" Assorted Pack of 20£78.14 £65.12 -
![]()
Flat Bar, Sizes: 20 x 3-6mm - Assorted Pack of 10£79.52 £66.27
