Threlaco 5th Wheel Hitch Lube Plates, 2-Pack 12 in Black — Polyethylene, Tool-Free Fit

If you tow a fifth-wheel trailer, keeping the hitch interface protected and free of messy lubricant is critical for long-term performance and easy maintenance. These two 12" lube plates from Threlaco provide a simple, tool-free barrier between the kingpin and hitch plate. Each plate measures 12 inches across, 3/16" thick, and has a 2-7/8" internal diameter so it presses onto standard kingpins and stays in place while you travel.

How do these lube plates protect my fifth-wheel hitch during towing?

The plates create a low-friction surface between the trailer kingpin and your hitch, preventing metal-to-metal abrasion that causes wear. Because they’re made from resilient polyethylene, they absorb contact and reduce the need for grease. Removing direct contact also helps keep the hitch plate and trailer components cleaner for inspection and service.

• 12" diameter covers the hitch contact area for broad protection
• 3/16" thickness balances durability and flexibility under load
• Polyethylene resists wear, moisture, and road grime

Will installation take tools or special effort?

No tools are required. The Threlaco plates use a zigzag interior pattern and a 2-7/8" opening that stretches over the kingpin and holds by friction. That means you can install or swap plates quickly on the ramp or in your driveway without disassembly.

• Push-on fit — press over the kingpin for immediate engagement
• Zigzag inner profile helps the plate stay centered during travel
• Removable for inspection or replacement in seconds

How do these lube plates make towing cleaner and lower maintenance?

By replacing traditional grease at the contact point, the plates eliminate sticky residue that attracts dirt and requires frequent clean-up. They reduce the need to reapply grease, lower the chance of contaminating the hitch components, and simplify routine inspections. Carrying an extra plate in the 2-pack gives you a ready replacement when one becomes worn.

• Mess-free operation — no lubricant to fling onto hitch or truck bed
• Two plates in the package mean an immediate spare or rotation set
• Long-lasting polymer reduces frequency of replacement versus thin alternatives

Are these plates compatible with my trailer kingpin and heavy use?

The Threlaco plates are sized for standard fifth-wheel kingpins and built from tough polyethylene designed for repetitive service. Their 2-7/8" internal diameter fits common kingpin dimensions, and the 3/16" thickness provides reliable wear resistance under normal towing conditions. They are not adhesive or welded, so they’re best used where a push-fit plate is appropriate.

• Internal diameter 2-7/8" fits standard kingpin sizes
• Thick polyethylene stands up to regular towing cycles
• Designed for plug-and-play replacement without modifications

Who this is for: RV owners, frequent campers, and fleet operators who want a low-maintenance, clean alternative to grease at the fifth-wheel interface. The two-piece set is ideal for anyone who values quick installation, a spare on hand, and a reliable polymer surface that reduces wear and keeps the hitch area tidy during travel.