Description
O-Ring Kit for Lyman Lube Sizer / Pressure Seal & Sizer Die | 45, 450, 4500
For: Models 45, 450, 4500
O-Ring Kit Includes:
3x – Pressure Seal Assembly O-rings
2x – Sizer Die O-rings
• Dependable Buna-N Material
• Direct fit aftermarket replacement
• Made in USA
User must install according to manufacturer specifications.
All brand new parts, satisfaction guaranteed.
Product Overview:
Complete O-ring kit designed for classic lube-sizing equipment that uses a pressure-seal assembly and interchangeable sizing dies. This kit refreshes the sealing components to maintain consistent operation, prevent lubricant bypass, and support smooth mechanical cycling.
Features:
- Restores sealing performance in older or frequently used equipment
- Buna-N material provides reliable resistance to oils and lubricants
- Direct-fit replacements designed for equipment models 45, 450, and 4500
- Molded for proper compression and long service life
- Made in the USA
Installation Notes:
Clean all recesses and sealing grooves before installation to remove hardened lubricant or debris. Install each O-ring evenly without stretching beyond its intended diameter. Follow the equipment manufacturer’s assembly guidelines to ensure proper seating and leak-free performance.
Key Benefits:
- Improves pressure consistency during operation
- Helps prevent lubricant loss or seepage
- Supports smoother mechanical cycling
- Provides a complete refresh kit for routine maintenance
All O-rings are brand new, direct-fit aftermarket replacements. User must install according to manufacturer specifications. Satisfaction guaranteed.

Reviews
There are no reviews yet.