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Home / Products / Towing & Rigging / Ball Mounts and Hitch Balls / XSTRAP 43613 5th Wheel Hitch

XSTRAP 43613 5th Wheel Hitch

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Inside the Manufacturing Process of the XSTRAP 43613

Every XSTRAP 43613 5th wheel hitch leaves the Zhangjiagang production line through four controlled stages. From raw steel coil to a finished, powder coated coupling head, the process is engineered to keep dimensional tolerance and weld strength consistent across every production batch, not just the sample unit tested for approval.

01

Steel Plate Cutting

High strength steel plate is laser cut into the jaw, base plate and leg components, keeping edge tolerance within a tight margin so every weld seam sits flush before assembly.

02

Robotic Welding

The main jaw and support legs are joined using continuous robotic seam welding, reducing weak points that hand welding often leaves at load bearing corners.

03

Powder Coat Curing

Frames pass through a degreasing and phosphating bath before the black powder coat is electrostatically applied and oven cured, giving the surface even film thickness for corrosion resistance.

04

Bench Load Simulation

Finished units are mounted on a static test bench and loaded incrementally to verify the king pin lock and pivot head hold under sustained downward force before packing.

Towing Capacity Reference by Coupling Type

Truck owners moving from a bumper hitch to a 5th wheel setup often ask how much more weight the coupling can actually carry. The chart below lines up common coupling types against their typical maximum gross trailer weight range, based on general industry reference figures.

Class 3 Ball Mount
8,000 lbs
Class 4 Ball Mount
12,000 lbs
5th Wheel Hitch
24,000 lbs
Gooseneck Hitch
30,000 lbs

Figures represent common upper range references for each coupling category and vary by specific truck bed rating, hitch grade and vehicle manufacturer limits.

5th Wheel Hitch vs. Gooseneck vs. Conventional Hitch

Coupling Type King Pin / Ball Style Turning Clearance Bed Space Used Typical Fit
5th Wheel Hitch U jaw locks onto king pin Wide, smooth pivot Fixed rail footprint Large RV living quarter trailers
Gooseneck Hitch Ball mounted in bed Tighter than ball mount Low profile, mostly hidden Livestock and flatbed trailers
Conventional Ball Mount Rear bumper receiver ball Widest swing angle No bed intrusion Utility and light travel trailers

Mounting Rail Compatibility Notes

Rail Spacing

The under bed rail kit fits standard full size pickup bed frame widths, with multiple bolt hole positions for fore and aft head placement relative to the rear axle.

Bed Type Fit

Works with both short bed and long bed configurations, though short bed trucks require checking cab clearance during sharp turns before finalizing head position.

Removable Setup

Because the head separates from the rail base, the bed can be cleared for hauling building materials or equipment between towing trips without unbolting the whole rail system.

Common Questions on the XSTRAP 43613

Can this hitch be moved between different pickup trucks?

Yes. The main head unbolts from the rail base, so a second rail kit installed on another truck lets the same head transfer between vehicles without redrilling the bed.

Does the hitch head need to be removed when not towing?

Removal is optional. The head can stay mounted, or be lifted off the rails to free up full bed length for cargo, then reinstalled without realigning the mounting holes.

How does the safety lock lever prevent accidental uncoupling?

The lever drops into a locked position once the king pin jaw closes, blocking the jaw from opening under road vibration until it is manually released at the release handle.

Is the 43613 suitable for custom OEM/ODM production runs?

The frame, coating color and mounting rail length can be adjusted for factory partners requiring a private label version, based on production drawings supplied to the manufacturing team.

3 In-house production plants
8,000㎡ Manufacturing floor space
20+ Years in cargo control R&D
ISO 9001 Certified quality system
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  • Product Description

    This heavy duty 5th wheel hitch is designed for towing large 5th wheel RV trailers.

    • Material: Constructed from high strength welded steel with black powder coated finish. It features outstanding impact, rust and corrosion resistance for long term heavy load use.
    • King Pin coupling system: Large U shaped jaw locks onto the trailer king pin. The robust latching mechanism provides secure connection. Built in safety lock lever prevents accidental uncoupling during transit.
    • Mounting rail system: Comes with a pair of universal under bed mounting rails. The whole hitch unit bolts onto the pickup truck bed rails, offering solid mounting foundation. Multiple mounting hole positions allow fore and aft position adjustment.
    • Dual support legs: Reinforced support legs distribute heavy towing load evenly across the truck bed frame for stable performance. Reflective safety strips are added for better visibility.
    • Smooth pivot design: The hitch head can pivot laterally, accommodating trailer articulation when turning or driving over uneven ground.
    • Complete assembly: Includes 5th wheel main head, mounting rails, support brackets and all required installation hardware.

    Product Application

    • Large RV Towing: Installed inside the cargo bed of full size pickup trucks. Primarily used for hauling 5th wheel campers and large fifth wheel travel trailers. Delivers superior towing stability compared to conventional ball mount hitches.
    1. Long distance recreational travel: Ideal for cross country road trips, family camping and long term RV vacations. It handles heavy weight living quarter trailers safely.
    2. Heavy duty cargo hauling: Also works for specialty 5th wheel style equipment trailers in farm and light commercial operations.
    3. Flexible truck bed usage: The hitch can be removed from the mounting rails when not towing, freeing up the pickup truck bed space for cargo transportation.

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Company Profile
Zhangjiagang SMK MFG. Co., Ltd.

Since its establishment in 2002, Zhangjiagang SMK MFG. Co., Ltd. has specialized in cargo securing and control products, with over 20 years of experience in R&D and global export. The company operates three factories and a large-scale warehouse center, forming an efficient international supply network.

SMK is China XSTRAP 43613 5th Wheel Hitch Factory and Custom XSTRAP 43613 5th Wheel Hitch Suppliers. The product range includes tie-down straps, bungee cords, tow straps, lifting slings, hoists, and 4x4 accessories, widely used in transportation, logistics, outdoor, and industrial sectors. Its in-house brand XSTRAP enjoys strong recognition in global markets, alongside flexible OEM/ODM services for customized needs.

With over 8,000 sqm of production space, SMK is equipped with advanced automated lines and in-house testing labs, ensuring full-process quality control from raw material to finished goods. The company is ISO 9001 certified, SMETA audited, and has passed C-TPAT anti-terrorism inspections and multiple GS and patent certifications.

Looking ahead, SMK will continue to upgrade its cargo control systems, stay close to customer needs, and provide high-quality, efficient products and services worldwide.

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