5 5th Wheel Plate for Semi Reviews: Find the Right Pick

If you tow a heavy trailer with a semi, you know the struggle of dealing with messy fifth wheel grease. A 5th wheel plate for semi trucks offers a clean, low-friction alternative that protects your hitch and kingpin from wear.

This guide reviews five top-rated 5th wheel plates, from heavy-duty commercial discs to simple press-on lube plates. You’ll find the right pick to keep your connection smooth and your hands clean.

Denco Semi Truck 5th Wheel Slick Disc – Heavy-Duty Protection

The Denco SLIK DISC is built for extreme-duty commercial environments. Its 32-inch diameter and 1/4-inch thick construction provide a durable, low-friction surface that replaces traditional grease. You’ll appreciate how it allows trailers to pivot smoothly during turns, reducing metal-to-metal contact and wear on your fifth wheel components.

Installation is straightforward with the included locking ring, and the disc resists moisture, dirt, and road grime. This is a no-nonsense solution for semi owners who tow heavy loads daily and want to eliminate the mess and hassle of greasing. It’s a long-lasting investment in your rig’s performance.

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• Eliminates Messy Fifth Wheel Grease – Replace traditional fifth wheel plate grease with the Denco SLIK DISC. This 32" lubrication disc creates a smooth, low-friction surface between the tractor and trailer, helping reduce maintenance time while keeping equipment cleaner.
• Smoother Trailer Articulation – Designed to allow trailers to pivot freely during turns and maneuvers, the SLIK DISC reduces friction between contact surfaces for dependable performance on highways, loading docks, and tight backing situations.
• Heavy Duty Commercial Construction – Manufactured from durable 1/4" thick material and built to withstand demanding trucking environments. Resistant to moisture, dirt, road grime, and everyday operating conditions encountered by professional drivers and fleets.
• Protects 5th Wheel Components – Helps minimize metal-to-metal contact and wear on fifth wheel plates and related towing components. A simple solution that can contribute to longer component life and reduced maintenance requirements.
• Professional Grade Denco Quality – Measuring 32 inches in diameter, this fifth wheel lubrication disc meets transportation industry requirements and is backed by Denco's commitment to quality products, reliable performance, and outstanding customer service.

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scottchen PRO 5th Wheel Lube Plate – Clean and Simple

The scottchen PRO lube plate is a clean, white polyethylene disc that eliminates the need for messy petroleum grease. Its 10-inch diameter and 3/16-inch thickness are designed for RV and camper trailers, providing a smooth lubricating surface between the kingpin and hitch. You simply press it onto your standard 2-7/8-inch kingpin—no drilling, bolts, or hammering required.

The serrated inner teeth grip the kingpin firmly, and the high-density material resists cracking and wear for thousands of miles. This plate protects your RV investment by preventing metal-to-metal friction that can damage the kingpin and hitch. It’s an easy, mess-free upgrade for weekend adventurers.

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• ✅ SAY GOODBYE TO GREASY MESS – Eliminate the need for messy petroleum grease on your 5th wheel hitch. This clean, white polyethylene disc provides smooth lubrication between kingpin and hitch plate, keeping your truck bed, clothes, and hands grease-free. Perfect for weekend campers and full-time RVers who value cleanliness.
• ✅ NO TOOLS INSTALLATION IN SECONDS – Simply press onto your 2-7/8" standard kingpin with serrated inner teeth that grip securely. No drilling, no bolts, no hammering required. Fits most 5th wheel hitches.
• ✅ HEAVY DUTY 3/16" THICK CONSTRUCTION – Made from high-density white polyethylene (NOT cheap brittle plastic), this 10-inch diameter disc withstands 5,000+ miles of towing. Resists rain, snow, dust. Replace every 6-24 months depending on usage frequency.
• ✅ PROTECT YOUR RV INVESTMENT – Prevents metal-to-metal friction that causes kingpin/hitch replacement. Reduces squeaking noise during turns, absorbs vibration for smoother ride.
• ✅ PERFECT SIZE FOR STANDARD SETUPS – 10" diameter covers 78.5 sq. inches contact area (vs 12" for oversized kingpins). Inner diameter 2-7/8" fits 95% of fifth wheel trailers. ⚙️ Measure your kingpin before ordering – if unsure, check our 12" version. Backed by responsive customer service.

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TonGass 5th Wheel Lube Plate 2-Pack – Affordable Protection

The TonGass fifth wheel lube plate comes in a two-pack, giving you a spare or a plate for a second trailer. Made from durable PP plastic, these 10-inch discs are designed to safeguard against friction and wear during towing. You simply press them onto your 2-7/8-inch kingpin—the serrated construction holds them securely in place.

Using these plates is more advantageous than greasing the hitch head, as they eliminate messy residue and cleanup. They’re a practical, budget-friendly option for RV and camper owners who want a clean lubrication solution. While not as heavy-duty as thicker discs, they offer solid protection for occasional towing.

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• 【Purpose】The fifth wheel lube plate serves as a safeguard against friction and wear caused by towing, extending the longevity of your 5th wheel.
• 【Benefit】Utilizing the 5th wheel plate proves more advantageous than greasing the 5th wheel head surface, eliminating the need to deal with messy and greasy residue.
• 【Composition】Constructed from durable PP plastic material, the 5th wheel hitch lube plate boasts high-density and excellent wear resistance.
• 【Simple Installation】Featuring a serrated construction with an ID of 2-7/8", the fifth wheel trailer lube plate can be conveniently pressed onto the 5th wheel kingpin prior to towing. No complex installation methods, drilling, or tools are required.
• 【Size】With a generous 10-inch diameter, this lube plate covers a substantial surface area for enhanced hitch plate protection. Its 3/16-inch thickness guarantees long-lasting durability and reliable performance.

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Technical Precision Slick Plate – Exact Fit for Freightliner

The Technical Precision slick plate is a direct replacement for the Jost fifth wheel plate on a 2008 Freightliner FLD 120 SBA. Measuring 31.5 by 35 inches, it’s designed to fit your specific hitch model without modification. This is a metal slick plate, not a lube disc, so it provides a smooth surface for your trailer’s kingpin to glide on.

Installation is straightforward—you bolt it onto your existing fifth wheel. It’s a practical solution if your original plate is worn or damaged. Keep in mind that you’ll still need a lube disc or grease to reduce friction. This plate is ideal for semi owners who need a precise OEM-style replacement.

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• Replacement For FREIGHTLINER FLD 120 SBA YEAR 2008 JOST 5TH WHEEL SLICK PLATE 31.5X35 IN
• Unit per sale:1

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CURT 16722 5th Wheel Lube Plate – Reliable and Mess-Free

The CURT 16722 lube plate is a trusted choice for standard fifth wheel towing. Its 12-inch diameter and wear-resistant polyethylene construction create a lubricating buffer between the hitch head and kingpin, protecting both from wear. You’ll appreciate how it eliminates the mess of traditional grease—no cleanup after hitching or unhitching.

Installation is simple: just press it onto your kingpin. The inside tabs provide a firm yet flexible fit. This plate is ideal for RV owners and light commercial users who want reliable protection without the hassle of grease. It’s a proven solution from a reputable brand that balances durability and ease of use.

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• WEAR-RESISTANT. This 5th wheel lube plate helps protect your 5th wheel hitch head from wear while towing heavy-duty 5th wheel trailers, creating a lubricating buffer between the hitch head plate and kingpin box
• LESS MESS. A 5th wheel lube plate is a far superior method to lubricating your 5th wheel connection with grease. Unlike grease, there are no messy spots to clean up afterwards. This lube plate also features unique, self-cleaning grooves
• STANDARD FIT. This 5th wheel lubrication plate is compatible with any standard 5th wheel kingpin. The inside tabs allow for a firm but flexible fit. The 12-inch outside diameter provides plenty of coverage for most 5th wheel hitches
• EASY TO INSTALL. Installing this 5th wheel lube plate is as simple as pressing it onto the 5th wheel kingpin before towing. Press it into place, hitch up your trailer and you're ready to tow
• DURABLE. For long-lasting use, this 5th wheel lube plate is made from tough white polyethylene plastic. Plastic construction stands up to heavy pressure while maintaining excellent lubrication

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Buyer’s Guide: What to Consider

Choosing the right 5th wheel plate for your semi depends on your trailer weight, kingpin size, and preference for mess-free operation. Here are key factors to consider.

• Compatibility: Ensure the plate fits your kingpin diameter (standard is 2-7/8 inches) and your hitch head size for proper contact and articulation.
• Material Thickness: Thicker materials (like 1/4 inch) offer greater durability for heavy-duty commercial use, while thinner discs suit lighter RV towing.
• Lubrication Type: Look for high-density polyethylene or similar wear-resistant plastics that reduce friction without messy grease.
• Installation Method: Some plates press onto the kingpin with serrated teeth; others bolt onto the hitch. Choose based on your preference for speed versus security.
• Usage Frequency: Consider how often you tow and the conditions. Extreme-duty plates handle daily commercial use, while standard plates work for occasional RV trips.

Conclusion

Choosing the right 5th wheel plate for your semi can save you time, mess, and wear on your equipment. Whether you need a heavy-duty commercial disc like the Denco SLIK DISC or a simple press-on plate for your RV, each option offers distinct benefits.

For most semi owners, the Denco SLIK DISC provides the best balance of durability and ease of use, while the CURT 16722 is a solid choice for standard RV towing. Consider your specific needs and pick the plate that fits your setup best.