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

Threlaco 2 Pack 12-inch 5th wheel lube plates are polyethylene discs designed to slip over a 2-7/8" kingpin to reduce metal-on-metal contact and keep your hitch cleaner during towing.

These two white lube plates give you a quick, tool-free way to add a low-friction layer between your RV trailer kingpin and the fifth wheel plate. Each disc is 12 inches in diameter and 3/16 inch thick, sized to sit securely over a standard 2-7/8" kingpin. Made from durable polyethylene, they are intended to prevent scraping and greasy build-up on the hitch surface so you can tow with less mess and routine maintenance.

How do these lube plates protect my fifth wheel hitch?

The Threlaco discs act as a replaceable buffer that absorbs friction where the trailer kingpin contacts the hitch plate. Instead of grease transferring directly to the hitch, the polymer disc takes the wear and can be swapped out when worn.

• 12" diameter covers the contact zone for typical fifth wheel plates
• 3/16" thickness provides a protective barrier against abrasion
• Polyethylene resists wear and reduces metal-on-metal contact
• Comes as a two-pack so a spare is ready when needed

Will these fit my RV kingpin and how do I install them?

Each plate features an internal opening sized to press over a standard 2-7/8" kingpin and a zigzag edge that helps with alignment. Installation requires no drilling or tools — simply press the disc onto the kingpin until it seats against the hitch plate.

• Internal diameter designed for 2-7/8" kingpins
• Zigzag edge aids in quick attachment and positioning
• Tool-free install — press-fit on to the kingpin
• Removable for inspection or replacement during routine checks

How do these plates affect maintenance and cleanliness?

Using a polyethylene lube plate reduces the need to constantly apply grease to the hitch and limits messy residue on the fifth wheel surface. Because the disc is inexpensive and replaceable, maintenance becomes a matter of swapping worn plates instead of heavy cleaning or re-greasing.

• Minimizes grease transfer to the hitch plate for a cleaner setup
• Swappable design means simple periodic replacement rather than deep cleaning
• Two-pack ensures you have a backup during long trips
• Durable material extends service life compared with thin plastic alternatives

Who is this for: The Threlaco 2 Pack 5th Wheel Lube Plates suit RV owners, seasonal travelers, and fleet operators who want a cleaner, low-effort way to protect fifth wheel plates. They are especially useful if you prefer a grease-free solution, need a quick on-road replacement, or want to reduce time spent cleaning and re-lubricating your hitch. These discs are intended as preventative accessories to lower wear and simplify towing upkeep; they do not replace proper hitch inspection and mechanical maintenance.