We researched and compared the top fifth wheel king pins on the market, evaluating manufacturer specifications, industry safety standards, and aggregated owner feedback. Our goal is to help you choose a king pin that provides reliable towing, durability, and ease of use. Below are our top picks, each with honest assessments of their strengths and limitations.
| Photo | Product | Score | Buy |
|---|---|---|---|
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CURT 5th Wheel King Pin Best Overall 2-5/16 inch diameter, 30,000 lb GTW rating |
9.0 | 🛒 Check Price |
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Reese Towpower Fifth Wheel King Pin Runner Up 2-5/16 inch diameter, 25,000 lb GTW rating |
8.7 | 🛒 Check Price |
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Lippert Components Solid King Pin Premium Build 2-5/16 inch diameter, 30,000 lb GTW rating |
8.4 | 🛒 Check Price |
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B and W Trailer Hitches Companion Fifth Wheel King Pin Innovative Design 2-5/16 inch diameter, 28,000 lb GTW rating |
8.1 | 🛒 Check Price |
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Demco Recon Fifth Wheel King Pin Lightweight Option 2-5/16 inch diameter, 22,000 lb GTW rating |
7.8 | 🛒 Check Price |
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Valley Fifth Wheel King Pin Budget Pick 2-5/16 inch diameter, 20,000 lb GTW rating |
7.3 | 🛒 Check Price |
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Cequent Performance Fifth Wheel King Pin Value Choice 2-5/16 inch diameter, 18,000 lb GTW rating |
7.0 | 🛒 Check Price |
1. CURT 5th Wheel King Pin: Best Overall
The CURT 5th Wheel King Pin is a top contender in our evaluation, offering a strong 30,000 lb gross trailer weight rating that suits most large fifth wheel RVs. Its solid steel build and corrosion-resistant coating ensure long-term durability, and based on owner feedback, it installs easily with basic tools. We found that its 2-5/16 inch diameter is a standard fit for most hitches, making it a flexible choice.
However, some owners in humid regions reported surface rust if not regularly lubricated, so this king pin may not be ideal for those who prefer a maintenance-free option. If you tow occasionally and want a reliable, no-frills king pin, this is an excellent pick. For those in harsh environments, consider a stainless steel alternative.
- Solid steel construction with corrosion-resistant finish
- Compatible with most standard fifth wheel hitches
- Includes locking pin and clip for secure attachment
Pros: High weight capacity suitable for heavy trailers; Easy installation with standard tools
Cons: May require occasional lubrication to prevent rust in wet climates
2. Reese Towpower Fifth Wheel King Pin: Runner Up
The Reese Towpower Fifth Wheel King Pin earned high marks in our comparison for its heat-treated steel construction and precision machining, which owners report provides a smooth, rattle-free connection. With a 25,000 lb rating, it covers most medium to large fifth wheel trailers. The included safety clip is a nice touch, and installation is straightforward.
That said, its weight capacity is lower than some competitors, so it is not suitable for the heaviest toy haulers or triple-axle RVs. If your trailer exceeds 25,000 lbs, we recommend looking at higher-rated options. For standard fifth wheel towing, this king pin offers excellent value and reliable performance.
- Heat-treated steel for added strength
- Precision-machined surface for smooth coupling
- Includes safety clip and installation instructions
Pros: Smooth finish reduces wear on hitch jaws; Good value for the price point
Cons: Not rated for extreme heavy-duty applications over 25,000 lbs
3. Lippert Components Solid King Pin: Premium Build
The Lippert Components Solid King Pin stands out for its one-piece forged steel construction, which eliminates weak points common in welded designs. In our research, this king pin consistently received praise for its durability and tight fit. The zinc plating adds a layer of protection against rust, and it matches the 30,000 lb capacity of our top pick.
However, its premium build comes at a higher cost, and some owners noted that it is slightly heavier than alternatives, which can be a consideration for manual handling. If budget is a primary concern, there are equally capable options for less. This is best for those who prioritize ruggedness and are willing to pay a bit more.
- One-piece solid steel forging
- Zinc-plated for corrosion resistance
- Compatible with most Lippert and standard hitches
Pros: Extremely durable one-piece design; Good corrosion resistance
Cons: Higher price compared to similar capacity models
4. B and W Trailer Hitches Companion Fifth Wheel King Pin: Innovative Design
The B and W Trailer Hitches Companion King Pin is a unique offering that integrates with their turnover ball system, allowing you to remove the king pin completely when not in use. This is a clever solution for truck bed utility. Owners report that the coupling is exceptionally smooth and secure, thanks to precision machining.
On the downside, it only works with B and W’s specific base system, which limits its appeal for those with standard hitches. Installation is more involved, and the overall system cost is higher. If you already own a B and W turnover ball hitch, this is a fantastic match. Otherwise, you may be better off with a universal king pin.
- Patented turnover ball design for bed clearance
- Includes locking pin and handle for easy release
- Machined from high-strength steel
Pros: Innovative design allows easy bed access when not towing; Smooth operation with minimal play
Cons: Compatibility limited to B and W turnover ball systems; Higher installation complexity
5. Demco Recon Fifth Wheel King Pin: Lightweight Option
The Demco Recon Fifth Wheel King Pin is designed for those who prioritize weight savings. Made from aluminum with an anodized finish, it is significantly lighter than steel king pins, making it easier to handle during installation and removal. In our evaluation, it fits standard hitches and offers adequate strength for smaller fifth wheel trailers up to 22,000 lbs.
However, its lower capacity means it is not suitable for large or heavy RVs. Additionally, some owners expressed concerns about long-term durability compared to steel, particularly if used frequently. If you have a lightweight trailer and want to save a few pounds, this is a viable option. For heavy towing, we recommend a steel king pin.
- Aluminum construction reduces weight
- Anodized finish for corrosion resistance
- Compatible with standard fifth wheel hitches
Pros: Lightweight for easy handling; Good corrosion resistance
Cons: Lower weight capacity limits use with heavy trailers; Aluminum may wear faster than steel under heavy use
6. Valley Fifth Wheel King Pin: Budget Pick
The Valley Fifth Wheel King Pin is a budget-friendly option that gets the job done for lighter fifth wheel trailers. With a 20,000 lb rating, it is best suited for smaller RVs or occasional towing. The welded steel construction and powder coat finish provide adequate protection, but based on owner feedback, the weld quality can vary, and some units showed signs of rust after a season of use.
We would not recommend this king pin for heavy or frequent towing, as the welded design is inherently less solid than forged alternatives. If you have a small, lightweight trailer and are on a tight budget, this may work. For most users, spending a bit more on a forged king pin is a wiser investment for safety and longevity.
- Welded steel construction
- Black powder coat finish
- Includes locking pin and clip
Pros: Very affordable price point; Basic functionality for light to moderate use
Cons: Lower weight capacity; Welded seams may be less durable than forged designs
7. Cequent Performance Fifth Wheel King Pin: Value Choice
The Cequent Performance Fifth Wheel King Pin is the most affordable king pin we researched, aimed at those with very light trailers. It has an 18,000 lb capacity, which limits its use to small fifth wheel campers or utility trailers. The carbon steel with e-coat finish offers basic protection, but owners reported that the finish can wear off, exposing the metal to corrosion.
We advise against using this king pin for heavy or frequent towing, as its construction and capacity are below industry standards for full-size RVs. It may be acceptable for occasional, light-duty use, but most buyers will be better served by a higher-rated king pin. If safety and longevity matter, look elsewhere.
- Carbon steel with black e-coat finish
- Standard 2-5/16 inch diameter
- Includes safety pin and clip
Pros: Lowest cost option in our lineup; Simple design for basic towing needs
Cons: Lowest weight capacity, not for heavy trailers; E-coat finish may chip over time, leading to rust
Frequently Asked Questions
What size fifth wheel king pin do I need?
Most fifth wheel trailers use a 2-5/16 inch diameter king pin. However, some older or lighter trailers may use a 2-inch pin. Always check your trailer’s specifications or measure the existing pin. Using the wrong size can cause unsafe coupling.
How much weight can a fifth wheel king pin hold?
Weight capacities vary by model, typically ranging from 18,000 to 30,000 lbs gross trailer weight (GTW). Choose a king pin with a rating that exceeds your trailer’s GVWR. Never exceed the king pin’s rated capacity, as this can lead to failure.
Are forged king pins better than welded?
Forged king pins are generally stronger and more durable than welded ones because they are formed from a single piece of metal, eliminating weld weak points. For heavy or frequent towing, a forged king pin is recommended. Welded designs are acceptable for lighter loads.
Can I replace my fifth wheel king pin myself?
Yes, replacing a fifth wheel king pin is a straightforward DIY job for most owners. It typically involves removing a few bolts and installing the new pin. However, ensure the new pin matches your trailer’s mounting pattern and torque specifications. If unsure, consult a professional.
How do I maintain my fifth wheel king pin?
Regularly lubricate the king pin with a heavy-duty grease to reduce wear and prevent rust. Inspect for cracks, deformation, or excessive wear before each trip. Clean off dirt and debris. If you notice any damage, replace the king pin immediately.
Our Verdict
After researching and comparing specifications, safety standards, and owner feedback, our top pick is the CURT 5th Wheel King Pin for its excellent balance of capacity, durability, and ease of use. The Reese Towpower Fifth Wheel King Pin is a close runner-up, offering great value and smooth performance for most trailers.
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