Description
Overview:
The Extension Shaft 5/8" with Keyway is a machined steel component used to extend the driven end of Petters A Series diesel engines. It provides a positive, keyed connection for transmitting torque to accessories such as pulleys, couplings or drive hubs. The 5/8 inch diameter (approximately 15.88 mm) ensures an accurate, concentric fit with matching bores, while the keyway maintains alignment under load. Supplied as a Genuine Lister Petter part (OEM AAC1689), it is made to the original specification for dependable service and correct compatibility with A Series and ASERIES engines. This item is unused old stock and may show light tarnishing or storage marks, which do not affect function. Use it during maintenance or overhaul to restore secure, slip-free drive from the engine to ancillary equipment.
Key Features:
- Genuine Lister Petter part for correct fit and reliability (OEM No. AAC1689).
- 5/8" (15.88 mm) shaft diameter for precise mating with standard 5/8" bores.
- Integral keyway for secure torque transmission and accurate alignment.
- Machined steel construction for strength and long service life.
- Direct fit for Petters A Series/ASERIES diesel engines.
- Helps prevent slippage of pulleys, couplings and drive hubs under load.
- Supports smooth running by maintaining true drive engagement.
- Suitable for repairs, scheduled maintenance, and engine refurbishment.
- Unused old stock; cosmetic tarnish or storage dirt may be present only on the surface.
- Straightforward to fit using standard workshop practices.
Typical Applications:
Used on Petters A Series engines to extend the crank or accessory drive for powering ancillaries. Typical tasks include driving belt pulleys for pumps, generators, compressors or mixers, and connecting couplings or hubs where a keyed interface is required. Ideal when refurbishing engines or replacing worn drive extensions to restore secure, slip-free power transmission.
Also known as:
Engine extension shaft, keyed extension shaft, keyway shaft, output shaft extension, drive extension, adaptor shaft, spindle extension, engine drive shaft, keyed drive adaptor, diesel engine shaft extension.
Fits Models:
A Series, ASERIES
Product Specifications
| L&S Part No. | AAC1689 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Lister Petter |
| OEM No. | AAC1689 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Lister Petter |
| Key Features | - Genuine Lister Petter part ensures correct fit (OEM No. AAC1689) - 5/8" (15.88 mm) diameter for precise bore mating - Integral keyway for secure torque transmission - Machined steel construction for durability - Direct fit for Petters A Series/ASERIES engines |
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