Porter-Cable 904749 Collar – Genuine OEM Replacement Pneumatic Nailer Seal Collar
Part Number: 904749
Category: Power Tool Parts & Accessories → Pneumatic Nailer Parts → Seal Collars
Type: Porter-Cable 904749 Collar – Genuine OEM Replacement Pneumatic Nailer Seal Collar
The Porter-Cable 904749 Collar is a genuine OEM replacement sealing component designed for compatible Porter-Cable pneumatic nailers. This collar helps support proper sealing, alignment, and movement within the nailer’s internal pneumatic assembly. Manufactured to original equipment specifications, it provides a direct replacement for a worn, cracked, distorted, or damaged seal collar and helps restore dependable tool performance.
Key Features & Benefits
- Part Number: 904749
- Genuine OEM Porter-Cable replacement part
- Replacement seal collar for compatible pneumatic nailers
- Helps maintain a proper seal within the internal air system
- Supports correct alignment and movement of internal components
- Helps reduce performance loss caused by air leakage
- Ideal for replacing a worn, cracked, distorted, or damaged collar
- Direct-fit OEM replacement
- Durable construction for reliable service
- Manufactured to original equipment specifications
Technical Specifications
- Part Number: 904749
- Manufacturer: Porter-Cable
- Product Type: Pneumatic Nailer Seal Collar
- Application: Internal sealing, alignment, and pneumatic system support
- OEM Part: Yes
- Quantity: Sold Individually
Compatible Applications
The Porter-Cable 904749 Collar is designed for compatible Porter-Cable pneumatic nailers that use this specific internal seal collar.
Always verify your nailer model, type number, parts diagram, and original part number before ordering to ensure proper compatibility.
Function of the Seal Collar
The 904749 Collar is an internal pneumatic nailer component used to:
- Help maintain a proper seal within the tool’s air system
- Support correct alignment of internal components
- Assist with controlled pneumatic movement
- Help minimize internal air leakage
- Support consistent driving performance
- Restore proper internal sealing functionality
A properly functioning seal collar helps the pneumatic system maintain the pressure and component alignment required for dependable nailer operation.
Common Signs Replacement Is Needed
Replace or inspect the seal collar if you notice:
- Air leaking from the nailer
- Weak or inconsistent fastener driving
- Nailer cycles slowly or irregularly
- Reduced power during operation
- Tool fails to complete a full drive cycle
- Visible cracking, distortion, or wear
- Excessive wear on related internal seals
- Performance does not improve after basic maintenance
A worn or damaged collar may prevent the nailer from sealing correctly, resulting in air loss and unreliable operation.
Installation & Service Notes
Disconnect the air hose and release all stored air pressure before beginning service. Remove all fasteners from the magazine and confirm that the tool is completely depressurized.
Disassemble the necessary housing or cylinder components according to the manufacturer’s service instructions. Remove the worn collar, clean the surrounding area, and inspect related O-rings, seals, and internal components for damage. Install the Porter-Cable 904749 Collar in the correct orientation, lubricate applicable components with manufacturer-approved pneumatic tool lubricant, and reassemble the nailer securely.
Important: Never service a pneumatic nailer while it is connected to an air supply or loaded with fasteners. Always verify the nailer model, type number, and original part number before ordering. Professional installation is recommended if you are unfamiliar with pneumatic tool repair.
Maintenance Recommendations
- Disconnect the air supply before inspection or maintenance
- Keep internal pneumatic components clean
- Use only manufacturer-approved pneumatic tool lubricant
- Inspect related O-rings and seals during installation
- Replace damaged seals as part of the same repair when necessary
- Avoid using petroleum products not approved for pneumatic tools
- Store the nailer in a clean and dry location
- Use genuine OEM replacement parts to maintain proper fit and dependable performance
