Ever heard that awful, screeching sound when a truck couples with its trailer? That noise isn’t just annoying; it’s a sign that something important needs attention. The connection point between your truck and trailer is the fifth wheel, and keeping it happy is crucial for safe and smooth towing. Choosing the right grease for this critical plate can feel like a guessing game. Should you use thick, sticky stuff or something thinner? Too much grease makes a mess, and too little causes painful wear and tear.
Ignoring this simple maintenance step leads to major headaches: costly repairs, difficult maneuvering, and even dangerous instability on the road. You need a product that handles heavy loads, resists washing away, and stays put through extreme temperatures. Getting this wrong wastes your time and money.
This guide cuts through the confusion. We will break down exactly what makes a fifth wheel grease effective. By the end of this post, you will know the best types of grease for your setup, how often to apply it, and how to keep your coupling silent and secure. Let’s dive into the details and ensure your next haul is smooth sailing.
Top Grease For Fifth Wheel Plate Recommendations
- 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
- 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 10-inch outside diameter provides adequate 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
- 【The "No-Grease" Solution】Say goodbye to messy grease on your hands and hitch. This lube plate provides a permanent, clean barrier between your 5th wheel plate and kingpin, keeping your equipment pristine and maintenance-free.
- 【Enhanced Protection & Silence 】Crafted from high-density, wear-resistant polyethylene (HDPE). This 3/16" thick disc acts as a vital cushion, reducing metal-on-metal friction, dampening road vibrations, and effectively silencing towing noise (chucking) for a smoother ride.
- 【Universal 10-Inch Fit】Designed with a 10-inch diameter and a 2-7/8" kingpin hole. Fits most standard 5th wheel hitches. **IMPORTANT**: Please measure your pin box surface before ordering. If your pin box is larger, please choose our 12-inch version.
- 【Tool-Free Installation】Features a precision-cut serrated inner ring designed to grip the kingpin securely. Simply press the plate onto the kingpin bottom by hand or tap gently with a mallet. No drilling, no clips, and no complex tools required. Installs in seconds.
- 【Weather-Resistant & Long-Lasting】Engineered to withstand harsh road conditions and extreme temperatures without becoming brittle. Whether you're a weekend camper or a full-time RVer, this sacrificial plate prolongs the life of your expensive hitch investment.
- [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 KP box.
- [PRODECT SIZE]: 12 inch diameter, 3/16 inch thick.
- [PERFECT 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]: When 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]: Long-term use, this 5th wheel lube plate is made from tough white polyethylene plastic. Plastic construction stands up to heavy pressure while maintaining excellent lubrication.
- 【The "No-Grease" Solution】Say goodbye to messy grease on your hands and hitch. This lube plate provides a permanent, clean barrier between your 5th wheel plate and kingpin, keeping your equipment pristine and maintenance-free.
- 【Enhanced Protection & Silence 】Crafted from high-density, wear-resistant polyethylene (HDPE). This 3/16" thick disc acts as a vital cushion, reducing metal-on-metal friction, dampening road vibrations, and effectively silencing towing noise (chucking) for a smoother ride.
- 【Universal 10-Inch Fit】Designed with a 10-inch diameter and a 2-7/8" kingpin hole. Fits most standard 5th wheel hitches. **IMPORTANT**: Please measure your pin box surface before ordering. If your pin box is larger, please choose our 12-inch version.
- 【Tool-Free Installation】Features a precision-cut serrated inner ring designed to grip the kingpin securely. Simply press the plate onto the kingpin bottom by hand or tap gently with a mallet. No drilling, no clips, and no complex tools required. Installs in seconds.
- 【Weather-Resistant & Long-Lasting】Engineered to withstand harsh road conditions and extreme temperatures without becoming brittle. Whether you're a weekend camper or a full-time RVer, this sacrificial plate prolongs the life of your expensive hitch investment.
- True affinity for metal surfaces thanks to its graphite/moly formulation and high percent of testifiers
- Tacky tenacious properties coupled with 10 percent lubricating solids further enables this grease to provide outstanding adhesion to fifth wheels
- NLGI grade 2
- Package Weight : 6.486 kilograms
- True affinity for metal surfaces thanks to its graphite/moly formulation and high percent of testifiers
- Tacky tenacious properties coupled with 10 percent lubricating solids further enables this grease to provide outstanding adhesion to fifth wheels
- Graphite lubricant designed for heavy duty applications
- Effective at extreme temperatures and environmental conditions
- Suggested Applications: All fifth wheel applications, standard trailer hitch balls, all sliding and oscillating to all vehicle type
- 【Excellent design】5th wheel lube plate 12 inch adopts linear groove design for easy cleaning.
- 【High quality materials】Rv 5th wheel lube plate cushions vibrations and is made of high-density, wear-resistant plastic. It helps protect your 5th wheel trailer against friction and wear.
- 【Size】 12" diameter,3/16" thick.
- 【Easy to install】There is no need to drill holes or tools to install the 5th wheel lube plate. Just press it onto the fifth wheel kingpin before towing. Push it in place and hook it up to your Trailer.
- 【Wide applicability】The 12 inch wheel lubrication plate is suitable for most five-wheel trailers and provides sufficient coverage.
Choosing the Best Grease for Your Fifth Wheel Plate: A Buyer’s Guide
Towing with a fifth wheel trailer brings freedom. But keeping that connection smooth needs the right grease. This guide helps you pick the perfect grease for your fifth wheel plate. A good grease protects your equipment. It makes your towing experience much better.
Key Features to Look For
When you shop for fifth wheel grease, look closely at these features. They matter for performance and protection.
- High Load Capacity: Your fifth wheel handles heavy weight. The grease must resist being squeezed out under this pressure. Look for terms like “extreme pressure” (EP) rating.
- Temperature Stability: You might tow in hot deserts or cold mountains. The grease needs to stay effective across a wide temperature range. It should not melt or freeze easily.
- Water Resistance: Rain and road spray happen. The grease must repel water. Water washes away protection and causes rust.
- Adhesion (Stickiness): The grease needs to stick firmly to the metal plate. Poorly adhering grease slides off quickly. This means you have to re-grease too often.
Important Materials in Fifth Wheel Grease
The ingredients in the grease determine how well it works. Most high-quality greases use a base oil and a thickener.
The Base Oil is the liquid part. Synthetic oils often perform better than mineral oils. Synthetics handle temperature changes better. They last longer too.
The Thickener turns the oil into a semi-solid grease. Common thickeners include lithium, calcium sulfonate, or polyurea. Calcium sulfonate is often praised for excellent water resistance and high heat tolerance. Lithium complex is a very common, good all-around choice.
Some excellent greases also include solid lubricants like Molybdenum Disulfide (Moly) or Graphite. These tiny particles provide extra friction reduction, especially when the load is very high.
Factors That Improve or Reduce Quality
The quality of your grease directly affects the lifespan of your fifth wheel coupling.
What Makes Grease Better: High concentrations of EP additives improve quality greatly. A grease specifically formulated for metal-on-metal sliding joints, like a fifth wheel, performs best. Synthetic bases always improve performance over standard mineral bases.
What Reduces Quality: Using the wrong type of grease can cause problems. Mixing incompatible greases often causes them to break down into a watery mess. Also, grease that uses low-quality fillers instead of effective thickeners breaks down fast under stress. Old, contaminated grease offers almost no protection.
User Experience and Use Cases
How the grease feels and how easy it is to apply impacts your experience.
Ease of Application: Most fifth wheel grease comes in a tube designed for a standard grease gun. A smooth, easy-to-pump consistency is preferred. If the grease is too stiff, it will not flow into all the necessary crevices of the plate.
Use Cases: If you tow heavy loads daily, you need the toughest, most water-resistant grease available—likely a calcium sulfonate or a heavy-duty polyurea. If you only tow occasionally, a good quality lithium complex grease will serve you well and might be more budget-friendly.
Always clean the plate thoroughly before applying new grease. A thin, even coat provides the best protection. Don’t over-apply; thick layers attract dirt.
Frequently Asked Questions (FAQ) About Fifth Wheel Grease
Q: How often should I grease my fifth wheel plate?
A: Most manufacturers suggest greasing every 3,000 to 5,000 miles or at least once per season. Check your trailer manual for specific recommendations.
Q: Can I use regular automotive wheel bearing grease?
A: It is not recommended. Wheel bearing grease is designed for rotational movement, not the heavy sliding friction found in a fifth wheel coupling. Use grease specifically rated for fifth wheels or heavy-duty sliding joints.
Q: What is the biggest mistake people make when greasing?
A: The biggest mistake is not cleaning the old grease and dirt off first. Applying new grease over old, dirty grease just traps abrasive particles against your metal surfaces.
Q: Do I need special grease for wet weather towing?
A: Yes. Look for greases that specifically advertise high water washout resistance or use a calcium sulfonate base. These resist being washed away by rain or road spray.
Q: How much grease do I need to apply?
A: Apply a thin, even coat across the entire surface of the fifth wheel plate. You want coverage, not excessive thickness. Too much grease attracts debris.
Q: Does synthetic grease really last longer than mineral grease?
A: Yes, synthetic greases usually last longer. They resist breaking down from heat and oxidation better than mineral-based greases, meaning you may not need to re-grease as frequently.
Q: Can I mix different brands of fifth wheel grease?
A: You should avoid mixing different types if possible. If you must switch, try to use the same thickener base (like lithium to lithium). If you are unsure, clean the plate completely before switching to a new product.
Q: What does “EP” rating mean on a grease label?
A: EP stands for Extreme Pressure. It means the grease contains special additives that prevent metal surfaces from welding together or wearing out when facing very heavy loads.
Q: Should I grease the locking jaws too?
A: Yes. The locking jaws and the kingpin itself need lubrication. Use a small amount of the same grease on these parts to ensure they pivot and lock smoothly.
Q: Where can I buy the best quality grease?
A: You can find high-quality, specialized fifth wheel grease at RV supply stores, large truck stops, and reputable online retailers specializing in towing accessories.