Description
Overview:
The Nut Rocker/Locking Nut is a genuine Lister Petter fastener used on the valve gear of Petter PJ range diesel engines, and is also commonly found on PT models. Made from durable steel for consistent performance, it secures the rocker assembly and helps prevent loosening under vibration and thermal cycling. The thread size is 5/16 in (7.94 mm) BSP with an outer diameter of 14 mm, matching the original design for a precise fit. This part is suitable for routine maintenance and rebuilds where a reliable locking nut is required to hold adjustments steady and protect engine operation. Supplied as a Genuine Part with MPN CB162, it supports long service life when used with correctly maintained rocker and tappet components.
Key Features:
- Genuine Lister Petter part (MPN CB162) for assured compatibility and quality
- 5/16 in (7.94 mm) BSP thread, outer diameter 14 mm for accurate fitment
- Robust steel construction to withstand engine heat and vibration
- Maintains rocker adjustment and prevents loosening in service
- Designed for Petter diesel engines in the PJ and PT ranges
- Smooth, clean threads for reliable clamping and re-use when serviceable
- Straightforward to install with standard hand tools
- Suitable for preventative maintenance and full overhauls
- Helps protect valve train components by keeping settings stable
- Matches original specification to reduce downtime and rework
Typical Applications:
Used on the rocker assembly of Petter PJ and PT diesel engines to lock valve clearance adjustments and secure related components. Ideal for engine servicing, valve setting, and rebuild tasks in generators, pumps, compressors, and plant equipment where Petter PJ/PT engines are fitted. Appropriate for workshop maintenance and on-site repairs where a reliable locking fastener is required.
Also known as:
Engine nut, rocker nut, rocker arm nut, adjusting nut. These terms are commonly used for the locking fastener that secures rocker or valve-train adjustments on small industrial diesel engines.
Fits Models:
PJ, PT
Alternate Part Numbers:
CB162, CB 162
Product Specifications
| L&S Part No. | CB162 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Lister Petter |
| Unit of Sale | 1 |
| Size | 5/16BSP |
| Machine Type | Engines |
| Fits Brands | Lister Petter |
| Key Features | - Genuine Lister Petter part for PJ and PT engines - 5/16 in BSP thread, 14 mm outer diameter - Durable steel construction resists heat and vibration - Maintains rocker adjustment, prevents loosening - Suitable for maintenance and engine rebuilds |
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