The Cox 439-1 Swivel Repair Kit delivers essential maintenance components specifically engineered for ½” NPT swivel assemblies in Coxreels hose reel systems. This precision-manufactured kit contains two Viton O-rings and two Teflon rings designed to restore optimal performance to worn or leaking swivel joints.

As the critical connecting point between stationary supply lines and rotating reels, properly functioning swivels ensure consistent flow rates while preventing fluid loss and system damage. Manufactured to the exact specifications of Coxreels’ original equipment, this repair kit provides an economical solution to extend equipment life without complete swivel replacement.

Restore Peak Performance to Your Coxreels Hose Systems

Swivel assemblies are critical connection points in any hose reel system used in sprayer applications, allowing free rotation while maintaining a watertight seal that prevents leakage and pressure loss. Even the best-quality seals wear out over time due to exposure to fluids, cycles of pressure, or frequent operation. Regular preventive care for the swivel assembly, the most common failure point, is vital. This proactive maintenance is crucial as it prevents leaks, extends equipment life significantly, and avoids costly downtime for professionals.

The Cox Swivel Repair Kit features Viton O-rings, which provide outstanding chemical resistance and temperature stability, while the Teflon rings provide exceptional low-friction performance and durability. Keeping this kit on hand helps equipment operators act quickly on leaks before they lead to component damage or unplanned downtime. Coxreels is a highly reputable brand with over a century of American manufacturing expertise, and QSpray.com has been a trusted supplier of their quality hose reels and parts for over three decades. 

Technical Specifications

• Compatible with: Cox 439-1 Swivel (½” NPT) and Coxreels hose reel models in the 100, 1125, 1275, C, DP, E, P, S, SG, SH, SP, and VA series
• Kit Contains: 2 Viton O-rings, 2 Teflon rings
• O-ring Material: Viton (superior chemical resistance)
• Bearing Ring Material: Teflon (low friction, high durability)
• Application: Seals 90° fluid path in CNC-machined brass swivel body
• Maximum Pressure Rating: Maintains original 3000 PSI rating when properly installed
• Thread Size: For ½” NPT connections (National Pipe Thread)

Download GUIDE: How to Measure Pipe Thread

Professional Equipment Backed by Industry Expertise

Whether you need the Cox Swivel Repair Kit (½”) or other hard-to-get repair kits, QSpray.com is committed to supplying crucial equipment maintenance components from top spraying equipment brands like Coxreels. Browse our complete selection of hose reel parts and accessories to keep your equipment performing at its best. Order today and enjoy same-day or next-business-day shipping.

Frequently Asked Questions

Are Viton O-rings better than standard rubber seals? 

Yes, Viton O-rings in the swivel repair kit provide superior resistance to many chemicals, temperature extremes, and aging compared to standard nitrile rubber. This makes them ideal for applications involving exposure to pesticides, herbicides, and varying environmental conditions, ensuring longer service life and better performance.

How do I know if my hose reel uses a 439-1 swivel that needs repair? 

Check for any fluid leakage around the central hub where the hose connects to the reel. The swivel has a brass body with ½” NPT thread connections and is used in many Coxreels models. The part number is typically stamped on the swivel body or can be verified in your equipment documentation.

How often should swivel seals be replaced? 

Preventive maintenance suggests replacing seals annually for equipment in heavy use or when exposed to harsh chemicals. Otherwise, replace at the first signs of leakage or every 2-3 years of normal operation. Keeping a swivel repair kit on hand prevents costly downtime when seals eventually fail.