Threlaco 2 Pack 5th Wheel Hitch Lube Plate 12 Inch RV

Threlaco 5th wheel lube plates are 12" polyethylene discs that slip over your kingpin to cut friction, keep the hitch plate clean, and extend component life during towing.

When towing a fifth wheel trailer, metal-to-metal contact between the kingpin and hitch plate creates wear, noise, and grease buildup. These two 12-inch Threlaco lube plates offer a simple, tool-free way to reduce abrasion and mess. Built from durable polyethylene and shaped for a secure fit, they provide a clean surface that slides against the hitch plate while protecting both parts from premature wear.

How do these lube plates reduce friction and mess while towing?

The low-friction polyethylene surface creates a sliding layer between the kingpin and the hitch plate so metal parts glide instead of grind. That minimizes heat and wear and stops grease from spreading across the hitch assembly.

• Large 12" diameter spreads load and covers the plate surface.
• 3/16" thickness resists tearing while remaining flexible.
• Polyethylene material provides a naturally slick contact surface.
• Reduces the need for frequent grease applications and cleanup.

Will these plates fit my fifth wheel kingpin and install without tools?

Yes — each disc has a 2-7/8" internal opening and a zigzag edge that lets you press it over the kingpin by hand. No drilling, bolts, or adhesives are required, and the plates stay in place through normal towing movements.

• 2-7/8" internal diameter made for standard kingpin shafts.
• Zigzag inner profile helps keep the plate from shifting in use.
• Push-on design for fast installation or replacement at the roadside.
• Sold as a two-pack so you can swap an extra plate immediately if needed.

How durable are these discs for long trips and heavy use?

Manufactured from robust polyethylene, the Threlaco discs resist abrasion, cracking, and moisture so they hold up under repeated use. Their 3/16" thickness balances toughness with the ability to conform slightly to the kingpin and hitch plate for consistent contact.

• Polyethylene resists wear, corrosion, and water damage.
• 3/16" wall thickness designed for repeated towing cycles.
• Black finish hides road grime and keeps a tidy appearance.
• Two-piece set ensures you have a backup or a replacement ready.

What maintenance or replacement schedule should I expect?

Maintenance is minimal: inspect the plate for deep gouges, thinning, or tears during routine trailer checks and replace it when wear is visible. With regular inspection and swapping the spare in the included two-pack, you can avoid hitch damage and lengthy roadside repairs.

• Check the plate before long trips and after heavy use.
• Replace when significant wear or deformation appears.
• Keep the spare disc on hand for quick roadside swaps.
• Clean with mild soap and water; avoid harsh solvents that can degrade plastics.

Who this is for: These Threlaco lube plates suit RV owners, professional haulers, and anyone towing a fifth wheel who wants a cleaner, quieter hitch experience and protection against plate wear. They’re ideal for long-distance travel, frequent coupling/uncoupling, or when you prefer a low-maintenance alternative to regular greasing. The two-pack format gives an immediate spare so you can replace a worn plate without delay and keep towing safely.