Description
Overview:
This 45 mm diameter drawtube is a replacement sliding tube for Knott-Avonride overrun couplings used on trailers and towed equipment. Built from robust steel for strength and long service life, it forms the core moving element inside the coupling, guiding controlled travel through the damper and transmitting movement to the brake linkage. It features M12/M12 threaded ends for secure connection to adjoining components. Suitable for selected KF and KRV series units, including KF13 and KRV13, it helps restore smooth operation where the original tube has become bent, corroded, seized, or worn. Supplied to the Knott-Avonride specification with manufacturer reference MPN 9810309402, it is intended as a direct-fit service part when maintaining coupling performance and braking response.
Key Features:
- 45 mm outside diameter sized for Knott-Avonride KF/KRV housings
- Steel construction for high load capacity and durability in towing use
- M12/M12 threaded ends for straightforward, secure attachment
- Precision-machined surfaces to support smooth sliding action with the damper
- Helps restore consistent overrun braking and controlled coupling travel
- Direct replacement design to suit specified models without modification
- Compatible with selected KF and KRV couplings used on a wide range of trailers
- Practical service item to resolve issues from wear, pitting, or bending
- Protective finish on the metal to resist everyday environmental exposure
- Identified by manufacturer part number 9810309402 for accurate selection
Typical Applications:
Used during servicing or repair of trailer overrun couplings on plant, general-duty, utility, and agricultural trailers fitted with Knott-Avonride units. Replace when the existing drawtube shows scoring, corrosion, play, or distortion that causes rough travel, poor braking response, or noise. Suitable for preventive maintenance to keep towing behaviour smooth and predictable.
Also known as:
Inner ram, sliding tube, overrun tube, actuator tube, coupling slider, centre tube, push rod, actuating rod, inner sleeve, replacement sliding element for overrun coupling assemblies.
Fits Models:
KF13, KF17, KF20, KF7, KRV13, KRV17, KRV20, KRV7
Product Specifications
| L&S Part No. | 800 0020 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Knott-Avonride |
| OEM No. | 9810309402 |
| Unit of Sale | 1 |
| Machine Type | Trailers |
| Key Features | - 45 mm diameter for Knott-Avonride KF/KRV housings - Steel construction ensures high load capacity - M12/M12 threaded ends for secure attachment - Compatible with KF13, KF17, KF20, KRV13, KRV17 - Manufacturer part number 9810309402 for accurate selection |
| Fits Models | KFG13 | KFG20 | KF7.5 | KF13 | KF20 | KRV7.5 | KRV13 | KRV20 | KRV17 |
