Description
Overview:
This Trigger Spring is a genuine JCB part designed for the HM25 hydraulic breaker. Made from high-quality spring steel, it provides a precise return force for the trigger mechanism so the tool starts and stops cleanly under load. The spring sits within the breaker's trigger/handle assembly and restores the trigger to its neutral position after activation, helping to maintain consistent impact control and safe operation. Built to JCB's OEM standards for fit and performance, it is the correct replacement for worn, stretched, or broken springs on HM25 breakers used on construction and demolition jobs. As a Genuine JCB Part, it offers the compatibility and reliability expected by trades and fleet operators who need dependable uptime and straightforward maintenance.
Key Features:
- Genuine JCB part for assured compatibility with HM25 hydraulic breakers
- Spring-steel construction for dependable resilience and long service life
- Correct rate and free length for a stable, consistent trigger return
- Helps prevent sticking triggers and irregular blows during breaking
- Direct-fit replacement with no modification required
- Supports safe operation by restoring proper trigger feel and control
- Suitable for harsh site conditions common in demolition and roadworks
- Quick to install to minimise downtime during planned or reactive maintenance
Typical Applications:
Used to restore reliable trigger action on JCB HM25 breakers working on concrete, asphalt, and masonry. Common in road repair, utility trenching, site clearance, and demolition tasks where consistent impact control and safe triggering are essential for productivity and operator confidence.
Also known as:
Trigger return spring, handle trigger spring, breaker control spring, control lever spring, hammer trigger spring, HM25 trigger spring, hydraulic hammer trigger return spring, breaker valve spring.
Fits Models:
HM25
Alternate Part Numbers:
929 05350, 92905350
Product Specifications
| L&S Part No. | 929/05350 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | JCB |
| OEM No. | JCB92905350 |
| Unit of Sale | 1 |
| Size | Length of Spring: 45mm |
| Applications | HM25 |
| Fits Brands | JCB |
| Fits Models | HM25 |

