Description
Overview:
This Extension Shaft, 1 inch (25.4 mm) diameter, is a genuine Lister Petter component designed for A Series diesel engines, including AA1 and AB1. Manufactured from robust, machined steel to OEM specification, it provides a dependable drive take‐off from the crankshaft for ancillary equipment. The shaft features an internal thread to suit pump-drive applications, offering a secure, concentric connection without the need for a keyway. Supplied as unused old stock, it retains the original build quality associated with Lister Petter parts. Suitable for professional maintenance and workshop repairs, it helps restore reliable operation where an extension is required for coupling pumps or accessories to the engine. OEM reference: 311328. Old part number: AAC168. Genuine Lister Petter part.
Key Features:
- Genuine Lister Petter OEM part (311328) for assured fit and performance
- Diameter 1 inch (25.4 mm) for precise compatibility with A Series engines
- Machined steel construction for strength, stability, and long service life
- Internal thread pump specification for secure, accurate coupling
- No keyway design to simplify fitting and reduce alignment issues
- Unused old stock (vintage) for original build quality and specification adherence
- Optimised concentricity to minimise vibration and wear on driven components
- Corrosion-resistant finish typical of OEM service parts to aid longevity
- Suitable for maintenance, overhaul, and replacement where an extension drive is required
- Supports reliable accessory drive without modifying the engine crankshaft
Typical Applications:
Used to extend the crankshaft drive on Lister Petter A Series diesel engines for mounting and driving pumps or other auxiliary equipment. Common in stationary plant, generators, small compressors, agricultural machinery, and workshop test rigs. Ideal when refurbishing engines or replacing a worn or missing extension to restore dependable coupling for directly driven accessories.
Also known as:
Engine extension shaft, auxiliary drive shaft, pump drive extension, threaded drive adaptor, crankshaft extension (1 inch/25.4 mm), coupling extension, drive hub extension for Lister Petter A Series.
Fits Models:
AA1, AB1
Product Specifications
| L&S Part No. | 311328 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Lister Petter |
| OEM No. | 311328 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Lister Petter |
| Key Features | - Genuine Lister Petter OEM part for A Series engines - 1 inch (25.4 mm) diameter for precise engine compatibility - Machined steel construction ensures strength and stability - Internal thread design for secure pump coupling - No keyway simplifies fitting and reduces alignment issues |


