CURT receiver-mount pintle hook for 2-1/2" lunette rings — 20,000 lb forged-steel, spring-lock

CURT 48004 is a receiver-mounted pintle hook designed to couple 2-1/2" lunette rings to any standard 2" x 2" receiver, rated for up to 20,000 lb gross trailer weight.

This heavy-duty pintle hook delivers a simple, robust towing connection used in agriculture, construction and other demanding applications where thicker metal and secure coupling are essential. The CURT 48004 slips into a 2" x 2" receiver, accepts lunette rings with a 2-1/2" inside diameter, and includes a spring-loaded locking arm plus safety pin to keep the connection secure. Its forged-steel construction and black powder coat finish resist impact, corrosion and abrasion during repeated use.

How does the CURT 48004 hold up under heavy towing?

The unit uses a solid forged-steel shank and a minimalist hook-and-loop design that lets metal thickness do the work. That construction yields higher working strength compared with lighter couplers while keeping the mechanism straightforward to inspect and maintain.

• Gross trailer weight capacity: 20,000 lb (do not exceed weakest component)
• Solid forged-steel body for increased fatigue resistance
• Spring-loaded locking arm reduces accidental uncoupling
• Powder coat finish guards against rust and surface wear

Will this pintle hook fit my vehicle and trailer hardware?

Compatibility is simple: the pintle mounts into any standard 2" x 2" receiver tube and accepts lunette rings with a 2-1/2" inside eye diameter. Confirm the receiver size on your vehicle and the inside diameter of your lunette ring before purchase to ensure proper fit.

• Receiver tube required: 2" x 2" (standard Class III/IV receivers)
• Trailer lunette eye required: 2-1/2" inside diameter
• Includes safety pin for locking the mounting shank in the receiver
• Fits most class 5 towing setups when rated components are used

What safety and maintenance features keep the coupling reliable?

The CURT 48004 includes a spring-loaded locking arm and a safety pin to secure the pintle during operation. Routine inspections of the locking mechanism, latch engagement and powder coat integrity will extend service life and reduce the chance of unexpected wear.

• Spring-loaded locking arm for positive engagement under load
• Supplied safety pin for secondary retention in the receiver
• Powder coat finish reduces corrosion and surface abrasion
• Simple geometry makes visual inspections fast and effective

How does the CURT pintle compare to other towing options?

Pintle-and-lunette systems trade some ride smoothness for exceptional strength and durability in rough-terrain or heavy-use environments. Compared with ball couplers, pintle hitches accommodate more vertical misalignment and heavier shear loads, making them preferred for work trailers and off-road towing.

• Higher allowable metal thickness than typical ball couplers
• Better for off-road and heavy-duty towing where articulation is needed
• Less susceptible to damage from impact or debris in the coupling area
• Requires a matching lunette ring rather than a standard trailer ball

Who is this for: The CURT 48004 is aimed at operators who need a dependable, high-strength hitching solution—farmers, contractors, municipal and military fleets, plus anyone hauling heavy equipment over uneven ground. Choose this pintle hook when you require a straightforward, serviceable connection rated for demanding work and compatible with standard 2" receivers and 2-1/2" lunette rings.