Best Swing Tongue Trailer Kit for Different Tongue Sizes

#1 · Best Overall

1. Tie Down SwingKing Tongue Kit

• Material Type: Alloy Steel
• Material: Alloy Steel

Best for: Multi-size bolt-on conversion.

Why it ranks #1: Its bolt-on pivoting design creates a swing-away tongue, and listed 3×3, 3×4 and 3×5 configurations cover more stated tubing sizes than the other options.

Tie Down’s SwingKing bolt-on kit converts a standard trailer tongue into a swing-away section without replacing the entire tongue assembly, helping reduce storage length. With 3×3, 3×4, and 3×5 tubing configurations listed, it gives owners several size options for fitting boat or utility trailers into tighter spaces.

The bolt-on conversion approach lets owners create a pivoting tongue section while retaining the existing trailer tongue assembly, according to the product description. Its swing-away action helps reduce overall storage length for garages, driveways, and storage buildings. Tie Down lists 3×3, 3×4, and 3×5 tubing configurations, so buyers can select among multiple stated sizes rather than relying on one dimension. The included components are identified as a SwingKing kit; the supplied details do not state a load capacity.

Skip it if you require a listed load limit before selecting a hinge; the Fulton ST-HDPB340101 specifies capacity up to 6,000 pounds.

This fits owners seeking a bolt-on swing-away conversion and a choice among three tubing sizes to ease trailer storage. The supplied details do not state its load capacity, so it is not the choice for buyers who need that figure listed.

Listed on Amazon as: Tie Down SwingKing Tongue Kit – Folding Trailer Tongue Hinge – Helps Reduce Storage Length – Includes Pivot Plates and Hardware

#2 · Highest Capacity

2. Hsarylons 11,000 lb Kit

• Material: alloy steel

Best for: High-capacity storage reducer.

Why it ranks #2: The listing gives an 11,000-pound towing capacity, alloy-steel welded construction and powder coating; verify its exact tongue-size fit before ordering.

Hsarylons lists an 11,000-pound towing capacity and a space-saving hinge that shortens trailer tongue length by 20%–30%, helping address tight garage storage. Its welded alloy-steel body has a black powder coating, a practical combination for buyers parking boat, RV, or cargo trailers in damp outdoor environments.

The stated 20%–30% tongue-length reduction connects the folding action to a specific storage benefit for trailers constrained by a garage or storage area. Hsarylons lists an 11,000-pound towing capacity, giving buyers a capacity figure to weigh against their trailer requirements. The thick alloy-steel main body uses integrated welded construction, and the black powder coating is described as resisting rust and corrosion in damp outdoor environments. The available details do not state a tongue dimension, so size matching needs particular attention.

Skip it if you need a stated tongue size before choosing; the Tie Down SwingKing Kit lists 3×3, 3×4, and 3×5 tubing configurations.

This is a candidate for owners prioritizing shorter storage length and the listed 11,000-pound capacity, including boat, RV, and cargo trailer users. Its tongue dimension is not specified in the supplied details, so that fit boundary remains important.

Listed on Amazon as: Folding Trailer Tongue Kit, 3 x 3 in, 11000 Lbs Towing Capacity

#3 · Best 3×4 Capacity

3. Pvirbravoo 3×4 Folding Kit

• Material Type: Alloy Steel
• Material: Alloy Steel

Best for: 3×4-inch dual-lock choice.

Why it ranks #3: This alloy-steel 3×4 kit lists 7,500-pound capacity and a locked pin, making its size and rating details useful for matching a compatible tongue.

The 3×4-inch Pvirbravoo kit pairs a listed 7,500-pound capacity with a dual-lock design, enabling a fold-away tongue setup for compatible trailers. Its locked pin is included, and a setup video is listed, offering buyers a visual guide for getting started with this larger-size hinge kit.

The 3×4-inch size and 7,500-pound capacity are the key checks for matching this kit to a trailer’s tongue and load requirements. Pvirbravoo identifies the product as compatible with trailers and describes a dual-lock design, while the included locked pin supplies a named locking component. A setup video guides buyers through product setup, which can help clarify the initial process. Alloy steel is the listed material, giving the kit a specified construction material rather than an unspecified one.

Skip it if you need a 3×3-inch hinge; the OTRUZPV TTHK-33 lists that tongue size and a 5,000-pound capacity.

This suits trailer owners seeking a 3×4-inch fold-away kit with a listed 7,500-pound capacity and dual-lock design. Make the tongue dimension and capacity the deciding checks, since the supplied details identify those specifications clearly.

Listed on Amazon as: Folding Trailer Tongue Kit, 3 x 4 in, 7500 lb

#4 · Best Fulton Option

4. Fulton 3×4 Fold-Away Hinge

• Maximum Weight Capacity: 6000 lb

Best for: 3×4-inch 6,000-pound hinge.

Why it ranks #4: The bolt-on fold-away hinge is specified for 3×4 tongues up to 6,000 pounds, giving buyers a clear size-and-capacity match to check.

Fulton’s bolt-on fold-away hinge is specified for 3×4-inch tongues and loads up to 6,000 pounds, giving trailer owners two concrete checks for a potential match. The zinc-finish kit is a focused option for buyers who need that tongue size and capacity rather than a different configuration.

The stated 3×4-inch tongue fit helps buyers narrow compatibility, while the capacity of up to 6,000 pounds provides a clear load limit to compare with their trailer needs. Its bolt-on fold-away format connects the hinge to a tongue that can swing out of the way for storage. Fulton lists a zinc finish, but the supplied information does not describe included hardware or a locking component. Buyers should base their decision on the specified size and capacity.

Skip it if you need capacity above 6,000 pounds; the OTRUZPV TTHK-34 lists a 7,500-pound capacity for a 3×4-inch kit.

This suits trailer owners looking for a bolt-on fold-away hinge for a 3×4-inch tongue, with capacity up to 6,000 pounds. Those stated size and load limits are the key boundaries to check for a suitable match.

Listed on Amazon as: Fulton Bolt-On Fold-Away Hinge Kit for 3" x 4" Tongues up to 6000 lb

#5 · Best 3×4 Rating

5. OTRUZPV 3×4 Hinge Kit

• Maximum Weight Capacity: 7500 lb
• Material Type: Alloy Steel
• Material: Alloy Steel

Best for: 3×4-inch 7,500-pound kit.

Why it ranks #5: This alloy-steel 3×4 hinge kit lists a 7,500-pound maximum capacity and includes a pin lock, though its listing gives fewer installation details.

OTRUZPV’s 3×4-inch hinge kit lists a 7,500-pound capacity, giving owners of matching trailer tongues a clearly specified size and load limit. Alloy-steel construction and an included pin lock round out the supplied details, making this a straightforward option to assess against the trailer’s dimensions and requirements.

The 3×4-inch designation helps buyers compare the hinge with their trailer tongue before committing to an installation, while the 7,500-pound capacity sets a stated load boundary. Alloy steel is the listed material, and the included pin lock adds a named locking component to the kit. These specifications support a focused compatibility check, but the supplied product information does not describe mounting hardware or a step-by-step installation process. Buyers can assess the listed size, capacity, and components without assuming additional package contents.

Skip it if you require a stated capacity above 7,500 pounds; the Hsarylons ZDTCG0718 lists an 11,000-pound towing capacity.

For a trailer owner whose tongue matches 3×4 inches and whose requirements fit the stated 7,500-pound capacity, this OTRUZPV kit offers alloy steel and an included pin lock. The supplied details do not list mounting hardware.

Listed on Amazon as: Folding Trailer Tongue Hinge Kit, 3 x 4 in, 7,500 lb GTWR

#6

6. PMTHMPTS 3×3 Folding Kit

• Maximum Weight Capacity: 5000 lb

Best for: 3×3-inch storage saver.

Why it ranks #6: Its 3×3 bolt-on design is rated for 5,000 pounds and includes matched mounting hardware, including 16 sets of bolts, nuts and washers.

The 3×3-inch bolt-on hinge folds a matching trailer tongue, helping reduce the space it occupies when parked. PMTHMPTS lists a 5,000-pound load capacity and a silver finish described as corrosion-resistant, making this kit a specific option for owners of compatible RV, utility, boat, or cargo trailers.

The 3×3-inch bolt-on design targets trailer tongues with that outer dimension, while the 5,000-pound capacity gives buyers a clear listed load limit to consider. Its fold-away action can free up parking or storage room when the trailer is not in use. The kit includes matched mounting hardware—16 sets of bolts, nuts, and washers—plus a locator and installation component, so the package supplies parts for mounting rather than just the hinge. The silver finish is described as corrosion-resistant.

Skip it if you need a 3×4-inch tongue or a capacity above 5,000 pounds; the Pvirbravoo FT 01 lists 3×4 inches and 7,500 pounds.

For owners of compatible 3×3-inch RV, utility, boat, or cargo trailers, this kit combines a fold-away hinge with included mounting hardware. Check that the tongue dimension and stated 5,000-pound capacity suit your setup.

Listed on Amazon as: Folding Trailer Tongue Kit, 3 x 3 in, 5,000 LBS Load Capacity, Bolt-On Heavy Duty Tongue Hinge for RV, Utility, Boat & Cargo Trailers, Save Storage Space

#7

7. OTRUZPV 3×3 Hinge Kit

• Maximum Weight Capacity: 5000 lb
• Material Type: Alloy Steel
• Material: Alloy Steel

Best for: 3×3-inch alloy-steel hinge.

Why it ranks #7: This 3×3 alloy-steel hinge lists a 5,000-pound capacity and pin lock, but provides less verified hardware detail than the other 3×3 option.

A 3×3-inch format and alloy-steel construction define OTRUZPV’s trailer tongue hinge kit, which has a stated 5,000-pound capacity. Its included pin lock gives buyers a listed locking component alongside the hinge, making it a focused choice for a compatible tongue when those specifications match the trailer.

The 3×3-inch size identifies the tongue dimension this kit is intended to match, helping narrow the fit decision before installation. Alloy steel is the listed material, and the 5,000-pound capacity provides a stated limit for comparing the kit with a trailer’s requirements. OTRUZPV includes a pin lock with the hinge kit, so buyers receive that component as part of the package. The supplied details do not specify mounting hardware or a finish beyond the listed silver color.

Skip it if you have a 3×4-inch tongue; the OTRUZPV TTHK-34 lists that size and a 7,500-pound capacity.

Choose this hinge kit if your trailer calls for the listed 3×3-inch size and 5,000-pound capacity, and you want an included pin lock. Those specifications define its fit and load boundary; the product details do not list mounting hardware.

Listed on Amazon as: Trailer Tongue Hinge Kit, 3 x 3 in, 5000 lb Capacity