ONYUOKU Fifth Wheel Landing Gear Quick Release Pull Pins, 2-Pack 3/8-inch Shaft, Zinc-Plated Steel

ONYUOKU 308287 is a two-piece spring-loaded quick release pull pin set that upgrades and replaces fifth-wheel landing gear pins, enabling fast, secure height adjustments for RV camper and motorhome jacks.

These ONYUOKU quick release pull pins (Replace# LC308287) are built to OE specifications to fit common fifth-wheel jack legs and speed up hookups and leveling. Constructed from zinc-plated steel with a heavy-duty spring mechanism, the pair bolts onto 2-1/4" square tube legs without welding, so you can retrofit existing landing gear jacks with minimal tools. Each pin uses a standard 3/8" diameter shaft designed to work with a 7/16" hole and includes mounting brackets and hardware for straightforward installation.

How do these pull pins make leveling and hookup faster?

The spring-loaded design keeps the pin attached to the jack so you can release and reset the landing gear quickly without hunting for loose parts. Pulling the pin retracts the locking mechanism, allowing you to raise or lower the jack leg smoothly and lock at the desired height. This reduces time spent adjusting each corner during setup or departure.

• Instant release via spring-loaded pull action for fast adjustments
• Remains secured to the jack for one-handed operation
• Works with standard 3/8" pin holes and 2-1/4" square legs

Will these pins fit my fifth-wheel landing gear or trailer jacks?

Yes — the ONYUOKU 308287 pins meet common industry dimensions and replace part number LC308287 directly without modification. They’re intended for 2-1/4" square tube legs and a 3/8" pin shaft that fits a 7/16" hole, so compatibility covers most OEM and aftermarket fifth-wheel landing gear jacks.

• OE-spec replacement for LC308287 — direct swap
• 3/8" diameter shaft designed for 7/16" hole fitment
• Sized for 2-1/4" square landing gear tubes

How difficult is installation and what hardware is included?

Installation is bolt-on and requires no welding, making it accessible for most DIYers with basic tools. Each kit ships with mounting brackets and all required fasteners so you can retrofit both sides of a landing gear assembly in one session. Follow the included instructions, tighten hardware to recommended torque values, and verify smooth operation before towing.

• Bolt-on mounting brackets plus all necessary hardware included
• No welding or specialized fabrication required
• Simple hand tools and basic mechanical skills recommended

How durable are these pins for outdoor and heavy-use conditions?

Manufactured from high-quality steel with a bright zinc-plated finish, the pins resist corrosion and rust commonly encountered in road and marine environments. The heavy-duty spring and solid construction are designed for repeated use under load, and ONYUOKU backs the set with a satisfaction guarantee and a 36-month warranty period.

• Zinc-plated steel body for corrosion resistance
• Heavy-duty spring for reliable repeated operation
• 36-month warranty and 30-day money-back guarantee

Who is this for: The ONYUOKU 308287 quick release pull pin set is ideal for fifth-wheel RV owners, professional trailer technicians, and DIYers who want a reliable, OEM-compatible upgrade to their landing gear. If you own a fifth-wheel camper or tow a motorhome with 2-1/4" square legs and need faster, safer jack adjustments, this bolt-on replacement delivers a durable, easy-to-install solution without fabrication.