2" Straight-Tongue Coupler with Posi-Lock (3" Channel, 3,500 lbs, Zinc)

Fits 3" wide straight trailer tongues and 2" trailer balls

Passes SAE-684 performance testing as a class 2 coupler

Spring and nut posi-lock mechanism allows for easy adjustment

Features holes to accept a safety pin or coupler lock

Constructed from die-cut, punched out steel

Protected by a durable zinc-plated finish

Limited lifetime warranty (one-year finish, one-year parts)

Taxes and fees are subject to change based on your address, which may result in a total purchase price change.


If you are replacing a broken coupler on your trailer or installing a new one on a trailer you are building, CURT has dependable couplers you can trust to keep your tow load latched on tightly. Selecting the right trailer hitch, ball mount and trailer ball to manage the weight of your trailer is not the only important aspect of towing. You also need a trailer that can stand up to the road ahead. That means equipping it with a coupler that is built to go the distance. CURT straight-tongue couplers, featuring our Posi-Lock latch, are the most common type of trailer coupler. With a mounting channel designed to fit onto a straight trailer tongue, the Posi-Lock coupler is easy to install. It is made from hardy steel construction and has a durable zinc finish to protect from corrosion, wear and tear. The lockable latch mechanism on CURT Posi-Lock couplers is easy to operate and adjusts by tightening or loosening a simple bolt. This CURT straight-tongue coupler features a gross trailer weight capacity of 3,500 lbs. and a tongue weight capacity of 500 lbs. It has a 3" channel and fits a 2" diameter trailer ball. All CURT couplers include a limited lifetime warranty and feature a lockable latch to give you peace of mind.

Additional Information

Title 2" Straight-Tongue Coupler with Posi-Lock (3" Channel, 3,500 lbs, Zinc)
Finish Clear Zinc
WARNING CA Proposition 65 No
Warranty Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
WC Tongue Weight 500
Ball Diameter 2.000 in.
Gross Trailer Weight 3500 lbs.
Retail Height - XA 4.500
Rate Class - XA 70.0
Item Class - XA OBS
Shipping Weight - XA 4.000
Parcel Allowed - XA Yes
Item Width - XA 4.600
Retail Width - XA 4.600
Tariff 301 - XA Yes
Item Height - XA 4.500
Item Length - XA 10.750
Retail Length - XA 10.750
Box Width in Inches - XA 4
Tongue Weight (TW) 500 LB
Class ID 0
Box Length in Inches - XA 7
Product Weight - XA 4.000
Box Height in Inches - XA 2
Gross Trailer Weight (GTW) 3,500 LB
Channel Size 3 IN
Universal Parts Yes