TOPTOW 1-1/4 in to 2 in Hitch Receiver Adapter — 6-1/4 in Extender, Welded Steel Powder-Coat, 350 lb Limit

TOPTOW 64408 is a heavy-duty 1-1/4" to 2" hitch receiver adapter that extends the receiver by 6-1/4" and converts a Class I/II 1¼" hitch to accept 2" accessories.

When you need to use a 2" ball mount, bike rack or cargo carrier with a smaller factory receiver, this TOPTOW adapter provides a secure, welded-steel solution that bridges the size difference. It’s built for durability with a rugged powder-coat finish, and it’s sized specifically to give 6-1/4" from center pin hole to shank pin hole. Note that this adapter is intended to change receiver size and add extension; it is not a primary towing device and tongue weight is limited to 350 lbs.

How does this adapter let me use 2" accessories with a 1-1/4" receiver?

The adapter slides into your existing 1-1/4" hitch receiver and accepts 2" shank accessories, effectively converting the smaller tube into a 2" opening. It’s a simple, bolt-in solution that avoids replacing the vehicle’s hitch while expanding accessory compatibility.

• Fits standard 1-1/4" receiver tube.
• Internal 2" opening to receive 2" shanks and mounts.
• Uses the receiver and shank pin holes to lock accessories in place.
• Welded construction keeps alignment stable under load within tongue weight limit.

What are the size and strength limits I should know about?

The TOPTOW adapter is constructed from heavy-gauge steel and finished with a corrosion-resistant powder coat, but its use is constrained by the vehicle hitch class and the adapter’s specified tongue-weight limit. It’s not rated to replace a higher-class hitch for towing; instead, it supports up to 350 lbs of trailer tongue weight for accessories and light loads.

• Extension length: 6-1/4" from receiver pin center to shank pin center.
• Receiver fits 1-1/4" openings; shank accepts 2" accessories.
• Trailer tongue weight limited to 350 lbs—do not use as a primary towing adapter.
• All-welded steel body with powder-coat for rust resistance.

How do I install and secure the adapter for safe use?

Installation is straightforward: insert the adapter into the 1-1/4" receiver, align the pin holes, and insert a matching hitch pin or locking pin (sold separately). Make sure to verify pin diameter and use a rated locking pin if theft or movement is a concern. Always double-check that the accessory’s tongue weight stays within the 350 lb limit before driving.

• Slide adapter fully into the 1-1/4" receiver tube.
• Align pin holes, then insert a suitable hitch pin or lock.
• Confirm accessory tongue weight and balance the load evenly.
• Inspect powder coat and welds periodically for wear or damage.

Will this change how my accessories sit or affect ground clearance?

Yes—because the adapter adds 6-1/4" of extension, it moves mounted accessories rearward and slightly lower or higher depending on the shank used. That additional length can improve clearance between the vehicle and accessory but may change cargo position and leverage; verify fit and clearance before full use.

• Adds 6-1/4" of distance from vehicle hitch pin to accessory pin.
• May alter rear overhang and clearance for ramps or garages.
• Useful for avoiding obstruction from spare tires or bumper-mounted items.
• Check reversing clearance and turning radius after mounting accessories.

Who is this for: The TOPTOW 64408 adapter is for drivers who own vehicles with factory 1-1/4" (Class I/II) receivers but want to use 2" accessories such as ball mounts, cargo carriers, or bike racks. It’s ideal for occasional hauling, tailgating gear, or bike transport where tongue weight stays under 350 lbs and replacing the hitch receiver isn’t practical. If you need full towing capacity beyond the adapter’s limits, consult a higher-class hitch or professional installer.