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CURT
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Always the correct part
We know our products
Quality Products
Free Shipping!
Includes shank, spring bars, head, hookup brackets, pin & clip
Trailer ball not included
Includes shank, spring bars, head, hookup brackets, pin & clip
Warranty: Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Color: Black
Finish: CARBIDE BLACK POWDER COAT
WC / TW (Pounds): 600 LB
WC Tongue Weight (Pounds): 600 LB
Gross Trailer Weight (Pounds): 6,000 LB
Installation Time Exact (Minutes): 0
Your route is planned and the trails are calling, but before you can cover any ground, you need to start with a solid connection between your tow vehicle and trailer. The CURT round bar weight distribution hitch with integrated lubrication offers a smooth ride and level towing with its heavy-duty components and built-in lubrication system. From travel trailers to popup campers, the CURT WD hitch is the perfect camping companion to let you Bring It. The strength of the round bar WD hitch begins with its heavy-duty, formed steel head. The formed construction allows for a precise design and supplies the durability needed to manage the weight of heavy trailers. Something unique to the weight distribution hitch is its grease zerk fittings, built directly into the head, allowing for easy, continuous lubrication at the spring bar mounting location. The spring bars are installed from the underside of the WD head and are made with forged steel for optimum strength. Like other CURT weight distribution hitches, the round bar hitch comes with a highly adjustable shank and chain hookup brackets for the perfect amount of tension to level the load. The shank fits any 2" x 2" receiver tube opening, making it compatible with most class 3, class 4 and class 5 trailer hitches. The head is also compatible with our 2-1/2" weight distribution shanks to match the heaviest of class 5 hitches. The hookup brackets and spring bars of the CURT WD hitch use chains and a simple snap-up design for easy setup and adjustment. This particular round bar weight distribution hitch offers a towing capacity ranging from 5,000 to 6,000 lbs. GTW and 500 to 600 lbs. TW. It comes with installation hardware, though a trailer ball must be purchased separately. The built-in sway control attachment tabs on the head allow it to readily accept one or two sway control units #17200. To protect this WD hitch on the way to your next destination and beyond, it also comes with a durable carbide powder coat finish.
CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-9494Rediscover "Us" Time | Tested. Proven. Safe. Towing Products
The Curt 17050 is a weight distributing hitch that uses spring bars and lift brackets to distribute trailer tongue weight across the tow vehicle's axles. This helps maintain level vehicle height when towing and improves stability, braking ability and handling. The 17050 is rated for a maximum gross trailer weight of 6,000 lbs and tongue weight of 600 lbs when used with spring bars.
The Curt 17050 is designed for trailers with A-frame tongues and a 1 1/4" threaded-shank hitch ball coupler. If your trailer has a straight (pole) tongue instead, you will need to order a pole tongue adapter kit from your local Curt dealer. The hitch ball you select must match your trailer coupler and have a load capacity equal to or exceeding your gross trailer weight.
Yes, but you must use the reducer bushing (part #7) included with the hitch. The 17050 is designed for a 1 1/4" threaded-shank ball by default. If you want to use a 1" ball instead, attach the reducer bushing to the head assembly before installing the ball.
These models differ in their weight capacity. The 17050 is rated for up to 6,000 lbs gross trailer weight and 600 lbs tongue weight with spring bars. The 17051 handles up to 8,000 lbs / 800 lbs, the 17052 up to 10,000 lbs / 1,000 lbs, and the 17057 up to 14,000 lbs / 1,400 lbs. Choose the model that matches your trailer's actual weight.
Spring bars are optional but recommended. Without spring bars, the 17050 is rated for a maximum gross trailer weight of 6,000 lbs and tongue weight of 600 lbs, but the actual weight rating depends on your trailer ball manufacturer's weight rating—do not exceed the ball's maximum rating. With spring bars, the 17050 is rated for 5,000–6,000 lbs gross trailer weight and 500–600 lbs tongue weight, which provides better weight distribution and stability.
No. The manual states that the tongue weight rating of the spring bars represents the capacity of a pair of bars, not an individual bar. You must always use a pair of spring bars, and they must be of the same weight rating. Using only one spring bar will not provide proper weight distribution and can lead to unstable handling.
The Curt 17050 can be installed on any tow vehicle with a receiver tube and hitch pin hole. However, you must never exceed your vehicle manufacturer's recommended towing capacity. For vehicles with air springs, air shocks or automatic leveling systems, you must deflate these to their minimum recommended pressure before assembling and adjusting the hitch. Consult your vehicle's owner's manual for specific towing capacity and system requirements.
Yes, the shank may be inverted as shown in the manual to obtain proper ball height on high ground clearance vehicles. However, if you invert the shank, you must check for adequate ground clearance to ensure the shank does not strike the ground or other objects.
The kit includes: hitch head, adjustable shank, 2 spring round bars, 2 snap-up brackets, pipe handle, 2 lift chains (8mm x 400mm), reducer bushing (1 1/4" to 1"), 2 hex bolts (3/4" - 10 x 4 1/2"), 2 conical washers (3/4"), 2 nylock nuts (3/4" - 10), hitch pin (5/8" x 3"), clip, 2 U-bolts (3/8" - 16), 4 nylock nuts (3/8" - 16), 4 washers (3/8"), 2 bolts (1/2" - 13 x 3 3/4"), 2 clips for snap-up bracket, pin, and 7 flat washers (1/2"). You must supply your own hitch ball matching your trailer coupler.
The manual does not specify which tools are required for installation. You will need basic wrenches and sockets to tighten bolts and nuts to the specified torque values (200 ft. lbs. for 3/4" bolts, 75 ft. lbs. for 1/2" bolts, and 50 ft. lbs. for the 5/8" set-screw), but the manual does not list other tools needed for assembly, drilling, or other steps.
Yes. The manual requires a trailer tongue jack for several steps: to level the trailer when measuring coupler height, to lower the coupler onto the ball, to raise the front of the trailer and back of the tow vehicle approximately 3" to allow easier installation of the chains, and to reduce spring bar chain tension when raising or lowering the lift bracket.
Measure on level pavement with the trailer and tow vehicle in a straight position and the trailer leveled with its tongue jack. Measure the distance from pavement to the top of the trailer coupler socket. Then measure the height from pavement to reference points on the front and rear bumpers of the tow vehicle. The uncoupled ball height should be set higher than the coupler height to allow for vehicle squat when coupled. For passenger cars, add 1/8" for each 100 lbs. of tongue weight. Position the head assembly on the shank at the nearest bolt hole that corresponds with this target height.
Yes, if your vehicle has air springs, air shocks or automatic leveling systems, you must deflate these to their minimum recommended pressure before assembling and adjusting the weight distributing hitch. Consult your vehicle's owner's manual or the system's instructions for the correct minimum pressure. This ensures accurate height measurement and adjustment.
1. Insert the adjustable shank into the receiver tube and secure with hitch pin and clip. 2. Measure trailer coupler height and tow vehicle bumper heights to determine target ball height. 3. Position the head assembly on the shank at the correct height and mark the position. 4. Attach the hitch ball to the head assembly. 5. Assemble lift chains to spring bars using U-bolts, washers and nylock nuts. 6. Lubricate spring bars and install them into the head socket. 7. Couple the trailer to the ball. 8. Raise the front of the trailer and back of the tow vehicle approximately 3". 9. Position and install the lift brackets on the trailer tongue. 10. Install the head assembly on the shank with bolts and washers. 11. Operate the lift brackets to achieve level vehicle height. 12. Tighten all fasteners to specified torque values. 13. Perform final checks before towing.
First, assemble the lift chains to the tapered ends of each spring bar using 3/8" U-bolts, 3/8" washers and 3/8" nylock nuts. Allow 2 to 3 threads of the U-bolts to extend through the bottom of each locknut, and ensure the chain is free to move in the U-bolt. Apply heavy, fibrous grease to the round end of each spring bar. Push the greased end up into the head socket until you hear a click, which indicates the spring bar is locked in place. Keep the spring bars lubricated during operation; if additional grease is needed, use the grease zerk. To release a spring bar, lift up slightly and gently pull out the retaining pin in the hitch head.
Using the trailer tongue jack, lower the coupler onto the trailer ball and close the coupler latch. Do not retract the jack fully at this time; allow the jack to support some of the tongue weight. Then raise the front of the trailer and back of the tow vehicle approximately 3" with the tongue jack. This will allow easier installation of the chains onto the hook of each lift bracket.
1. Position the spring bar parallel with the trailer tongue and hold the lift chain vertical alongside the tongue. Position the lift bracket so the chain is centered between the bracket. 2. Mark the bracket location on the tongue. 3. Install the 1/2" - 13 x 3 3/4" bolt into the threaded hole in the lift bracket, turn it in until it contacts the tongue, then tighten a 1/4 turn with a wrench. Do not overtighten. 4. Place six 1/2" flat washers on the pin and insert the pin into the unthreaded hole in the upper portion of the head channel. 5. Install the head on the shank at the marked position. 6. Tighten the lower 5/8" hex bolt just enough to hold the head tight against the pin. 7. Place the head assembly into the hitch assembly on the towing vehicle and secure with the pin and clip.
1. Slip the marked chain link over the hook on the lift bracket. 2. Insert the lift handle onto the lift bracket rod above the lift chain hook. 3. Using the handle, raise the lift bracket up and over center so that it is fully seated against the mounting bracket. 4. Secure by inserting the clip through the lift bracket and mounting bracket. Ensure the chain is not twisted and the hook extends through the link. Before raising or lowering, raise the front of the trailer to reduce spring bar chain tension, which makes operation easier and safer.
1. Remove the locking pin from the lift bracket. 2. Insert the lift handle onto the rod above the lift chain attachment. 3. Carefully lower the bracket with the handle. It will require effort to bring the bracket over center and then to resist the chain tension as the bracket rotates downward. Before lowering, raise the front of the trailer to reduce spring bar chain tension, which makes operation easier and safer. Maintain control of the lift handle at all times.
After raising the lift bracket, the vehicle should settle evenly, within 1/2". Re-measure the front and rear bumper reference points. If the front has settled much more than the rear, increase the number of chain links between the lift bracket and the spring bar. The spring bars should be nearly horizontal when correct height is achieved. When even settling and correct spring bar position have been achieved, mark the spring bar chain at the hooked position with paint for future reference. Ensure at least 5 links remain between the lift bracket and spring bar, and the number of links should be the same on both bars.
Tighten the 3/4" - 10 x 4 1/2" hex bolts (#8) and 3/4" - 10 nylock nuts (#10) to 200 ft. lbs. torque. Failure to tighten these bolts to the correct torque may result in fastener loss or failure.
Tighten the 1/2" head attachment bolts to 75 ft. lbs. torque. Failure to tighten these bolts to the correct torque may result in fastener loss or failure.
Tighten the 5/8" hex head set-screw to 50 ft. lbs. torque. This bolt holds the head tight against the pin in the head channel. Failure to tighten it to the correct torque may result in fastener loss or failure.
Never exceed your vehicle manufacturer's recommended towing capacity. The loaded trailer ball height must never be greater than the uncoupled ball height. If the loaded ball height is greater than the uncoupled height, reduce take-up on the spring bar chains, remeasure and adjust until the proper height is obtained. Front wheel overload and loss of rear wheel traction can result from incorrect ball height, leading to unstable handling, reduced braking ability and a tendency to jackknife when turning and braking at the same time.
Before raising or lowering the lift bracket, raise the front of the trailer to reduce the spring bar chain tension. This will make the lift bracket operation easier and safer. Keep clear of the pivot path of all moving parts when there is tension on the spring bar chain. Maintain control of the lift handle at all times when raising or lowering the spring bar. Be sure that the locking hair pin is in place once the lift bracket is in the up position.
There must be at least 5 links minimum between the lift bracket and the spring bar. If fewer than 5 links remain, the chain and snap-up bracket will bind. The number of links should be the same on both bars. If you need to adjust the number of links, tilt the head down and tighten the two 3/4" bolts to 200 ft. lbs. torque once the head angle is set.
Before towing, check the following: pin and clip securing shank to receiver; head to shank fasteners; trailer ball nut torque; coupler latch; snap-up bracket bolt; safety chains; lights and turn signals; braking system, including breakaway switch. At the beginning of every tow day, check all trailer to towing vehicle connections for security and operation.
Tongue weight should be 10–15% of the gross trailer weight for most trailers. Too low a tongue weight often produces a tendency to sway. Ensure your trailer's actual tongue weight does not exceed the hitch's rated tongue weight capacity (600 lbs for the 17050 with spring bars, or 500–600 lbs depending on spring bar configuration).
No. Trailers should not be occupied while being towed. Most states enforce this regulation.
Surge brakes require a small amount of fore and aft movement for their actuating mechanism to function correctly. To avoid restricting movement, it may be necessary to increase the number of chain links between the lift brackets and spring bars by tilting the head down. Tighten the two 3/4" bolts to 200 ft. lbs. torque once the head angle is set. Note that surge brake actuators not designed for use with a weight distributing hitch may bind and not operate freely. Check your surge brake operating instructions for specific requirements regarding their use with weight distributing hitches.
Keep the socket-mounted ends of the spring bars and the lock pins in the head assembly free from dirt and well lubricated. Excessive wear in this area may indicate an overload or inadequate lubrication. Keep the head assembly exterior clean and do not allow dirt or stones to lodge between the spring bars and the head. Keep hitch parts painted to prevent rust and maintain good appearance, but do not paint over labels. Keep lift brackets clean and lubricated to ensure ease of operation. Coat the clevis pins in the head assembly with fibrous grease. Clean the ball and coupler socket and coat the ball lightly with grease.
Check spring bar chains and U-bolts for wear and security regularly. Replace them if they become worn. The manual does not specify a particular interval, but recommends checking them at the beginning of every tow day as part of routine equipment inspection.
Yes. Remove the weight distribution hitch from the trailer hitch on the towing vehicle when not towing a trailer. This reduces the chances of striking the hitch on the driveway or other objects and reduces the chance of parts being stolen.
Keep the spring bars lubricated during operation. If additional grease is needed, use the grease zerk on the spring bar. Apply heavy, fibrous grease to maintain proper lubrication and prevent excessive wear.
Check to see that all trailer balls are properly tightened and that the locking pins in the lift brackets are securely in place. Also check that the hitch pin is in place and secure. Clean the ball and coupler socket regularly and coat the ball lightly with grease to prevent corrosion.
With spring bars: 5,000–6,000 lbs gross trailer weight, 500–600 lbs tongue weight. Without spring bars: up to 6,000 lbs gross weight and 600 lbs tongue weight, but limited by your trailer ball's rating. Never exceed your vehicle manufacturer's towing capacity.
Yes. The hitch ball is not included. You must supply a 1 1/4" threaded-shank ball (or 1" with the included reducer bushing) that matches your trailer coupler and has load capacity equal to or exceeding your gross trailer weight.
Yes, if your vehicle has air springs, air shocks or automatic leveling systems, deflate them to minimum recommended pressure before assembly. Check your vehicle's owner's manual for the correct pressure.
3/4" bolts and nuts: 200 ft. lbs. 1/2" bolts: 75 ft. lbs. 5/8" set-screw: 50 ft. lbs. Failure to tighten to specification may result in fastener loss or failure.
The loaded ball height must never exceed the uncoupled ball height. If it does, reduce spring bar chain take-up and readjust. Incorrect height causes front wheel overload, loss of rear traction, unstable handling, reduced braking and jackknife risk.
At least 5 links minimum must remain between the lift bracket and spring bar on each side. If fewer than 5 links remain, the chain and snap-up bracket will bind. Both bars must have the same number of links.
Keep spring bar sockets and lock pins free from dirt and well lubricated. Keep the head assembly exterior clean. Keep hitch parts painted to prevent rust. Keep lift brackets clean and lubricated. Check spring bar chains and U-bolts for wear regularly. Remove the hitch when not towing.
Reposition the lift bracket so that the chain is centered between the bracket and runs vertically. If the chain is angled fore or aft, it may catch on the bracket when the trailer turns, which could damage the bracket or pry it open. Loosen the bracket bolt, reposition the bracket, and retighten.
Increase the number of chain links between the lift bracket and the spring bar. This will reduce the amount of weight distribution and allow the rear to settle more. Ensure the spring bars are nearly horizontal when correct height is achieved. The number of links should be the same on both bars.
Ensure you have applied heavy, fibrous grease to the round end of the spring bar before pushing it into the head socket. Push the greased end up into the socket until you hear a click, which indicates the spring bar is locked in place. If you do not hear a click, the spring bar may not be fully inserted. If the socket is dirty or dry, clean it and apply fresh grease, then try again.
Before raising or lowering the lift bracket, raise the front of the trailer to reduce the spring bar chain tension. This will make the lift bracket operation easier and safer. If the bracket is still difficult to operate, check that the lift brackets are clean and well lubricated. If the chain is twisted or the bracket is misaligned, reposition it so the chain runs vertically and is centered in the bracket.
Excessive wear in the socket-mounted ends of the spring bars and lock pins may indicate an overload or inadequate lubrication. Check that you are not exceeding the hitch's weight rating and that the spring bars are being kept well lubricated. If wear continues, the spring bars may need to be replaced.
Surge brake actuators not designed for use with a weight distributing hitch may bind and not operate freely. To avoid restricting movement, increase the number of chain links between the lift brackets and spring bars by tilting the head down. Tighten the two 3/4" bolts to 200 ft. lbs. torque once the head angle is set. Check your surge brake operating instructions for specific requirements regarding their use with weight distributing hitches.
| Kit # | Hitch # | GTW | TW | Bar Length | Kit Includes |
|---|---|---|---|---|---|
| -- | 17050 | 5,000 - 6,000 lbs. | 500 - 600 lbs. | 31-3/16" | -- |
| -- | 17051 | 6,000 - 8,000 lbs. | 600 - 800 lbs. | 31-3/16" | -- |
| 17062 | 17052 | 8,000 - 10,000 lbs. | 800 - 1,000 lbs. | 31-3/16" | Sway control (17200), pre-torqued 2-5/16" trailer ball (40006) and chains pre-assembled to spring bars |
| 17063 | 17057 | 10,000 - 14,000 lbs. | 1,000 - 1,400 lbs. | 31-3/16" | Sway control (17200), pre-torqued 2-5/16" trailer ball (40030) and chains pre-assembled to spring bars |
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