Description
Overview:
This Plunger O-Ring is a genuine Hitachi/Hikoki replacement part designed to restore and maintain the air seal inside compatible nailers. Made from durable, oil‐resistant rubber, it creates a tight seal around the plunger to prevent air leaks, helping your tool hold pressure and cycle consistently. It is suitable for selected Hitachi/Hikoki nailers, including high-pressure coil nailers such as the NV65HMC and NV75HMC. By replacing a worn or flattened O-ring with this OEM item (878607), you can reduce misfires, protect internal components from excess wear, and keep driving performance steady. The compact ring form factor is straightforward to install during routine servicing, making it a practical maintenance part for both trade users and DIY owners. Genuine Part for assured fit and reliability.
Key Features:
- Genuine Hikoki/Hitachi OEM part for precise fit and compatibility (OEM No. 878607)
- Robust rubber construction for reliable sealing and long service life
- Helps maintain internal air pressure for consistent driving power and fast recovery
- Reduces air leaks, misfires, and premature wear of mating components
- Easy to fit during routine servicing with basic hand tools
- Suited to high-pressure coil nailer applications where sealing integrity is critical
- Supports tool efficiency, reducing downtime on site or in the workshop
- Cost-effective preventative maintenance component
Typical Applications:
Used during maintenance or repair of compatible Hitachi/Hikoki nailers to restore sealing at the plunger. Common in site work and workshop servicing for tasks such as framing, roofing, cladding, decking, and fencing where coil nailers are used. Helps keep tools running efficiently under continuous or high-pressure use.
Also known as:
Plunger seal, nailer O-ring, coil nailer plunger seal, pneumatic plunger seal ring, air seal O-ring, rubber sealing ring for nailers.
Fits Models:
GFN3490, GNC40, NC40G, NR90GC2, NR90GR2, NV65HMC, NV75HMC, NV90HMC
Alternate Part Numbers:
878607
Product Specifications
| L&S Part No. | HKK878607 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Hikoki |
| OEM No. | 878607 |
| Unit of Sale | 1 |
| Applications | GFN3490, GNC40, NC40G, NR90GC2, NR90GR2, NV65HMC, NV75HMC, NV90HMC |
| Machine Type | Nailers |
| Fits Brands | Hikoki |
