CURT Universal 5th Wheel Brackets Fifth Wheel Trailer Hitch Mount KitCURTOriginal price was $183.95. Current price is $137.98.In Stock
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Includes slider unit only
Not compatible with X5 adapters
Includes slider unit only
Warranty: Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Finish: CARBIDE BLACK POWDER COAT
Gross Trailer Weight (Pounds): 25,000 LBS
Installation Time Exact (Minutes): 0
The CURT S25 slider makes it easy to tow a 5th wheel trailer with your short-bed truck. This slider features a quiet design, an auto-latching mechanism, an ergonomic handle and industry-standard mounting points. The S25 sliding 5th wheel hitch is built with a solid design to eliminate chucking in the towing position and promote smooth rolling from forward to rearward positions, with no binding. With the S25 installed, you can safely move the coupling point 12 inches toward the rear, allowing your short-bed truck to make turns without obstruction. The S25 slider is comfortable and easy to operate, featuring a lift-style lever that is easily accessible over the side of the truck wall. The lever moves in a more user-friendly, ergonomic motion compared to traditional, pull-out-style levers. Best of all, the S25 automatically latches into place in both directions, meaning you only have to get out of the truck once to complete the operation. Simply set the lever, pull the truck forward and you're ready to maneuver. The auto-latches will lock the slider into the rearward coupling position. The S25 sliding 5th wheel is rated for trailers up to 25,000 pounds, and it is fully tested to SAE J2638 specifications. It comes with standard mounting points to easily mount onto all industry-standard base rails.
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 16574 is a 5th wheel slider that allows your 5th wheel hitch to move 12 inches forward and backward on your truck bed. This enables two operating modes: a maneuver position (12 inches forward) for easier trailer alignment during coupling, and a tow position (12 inches rearward) for towing. It is designed for trailers up to 25,000 lbs gross trailer weight.
The slider is rated for trailers up to 25,000 lbs gross trailer weight (GTW). The vertical load capacity is 6,250 lbs. Never use the slider on trailers exceeding 25,000 lbs, as this may result in separation, damage to the hitch, towing vehicle, trailer, or serious injury or death.
Yes. The slider requires two additional components sold separately: 5th wheel base rails (which mount to your truck bed) and a 5th wheel head unit (which couples to the trailer). This manual covers only the slider installation. The 5th wheel head unit comes with its own separate installation manual that you will need to follow.
No. The slider repositions your 5th wheel hitch 12 inches rearward, but this will not guarantee complete truck cab and trailer clearance when towing. You must verify clearance for your specific truck and trailer combination.
You will need a torque wrench and a socket set. The installation is rated as Easy difficulty level.
The slider package includes: 1 slider assembly, 4 rail pins, 4 rail clips, 4 rubber spacers, 2 pin plates, and 4 replacement 5th wheel head bolts. The base rails are sold separately and are required for installation.
Before installation, check that the base rails in your truck are properly installed and parallel with each other. Verify this by measuring the diagonal dimensions—they should be the same. The base rails must be level and secure before you proceed with slider installation.
1. Verify the base rails are properly installed and parallel (diagonal dimensions equal). 2. Place the slider into the base rail slots. 3. Secure the slider with the 4 provided rail pins and 4 rail clips, positioning them as shown in the manual. 4. Ensure all pins are positioned correctly and all clips are secured before towing. The slider should move smoothly fore and aft on the rails.
Insert the 4 replacement 5th wheel head bolts through the mounting holes on both the pin plate and slider, then secure them with nylock nuts. Torque all hardware to the specification indicated in your 5th wheel head unit's installation manual. For proper head height calculation, refer to the installation manual included with your 5th wheel head unit.
The maneuver position is used for coupling the trailer. On a level surface, align the 5th wheel trailer and tow vehicle in a straight line. Pull the slider handle out until it locks open to place the lock bar in the maneuver position. Set the trailer brakes and slowly drive the tow vehicle forward until the slider stops. The locking bars will automatically engage in the rear locking groove. The slider moves 12 inches forward in this position.
The tow position is used for towing the trailer. On a level surface, align the 5th wheel trailer and tow vehicle in a straight line. Pull the slider handle out and rotate it clockwise to place the lock bar in the ready-to-lock position. Set the trailer brakes and slowly back up the tow vehicle until the slider stops. The locking bar will automatically return to the locked position. Move the tow vehicle forward slightly to ensure the lock bar is fully engaged. The slider moves 12 inches rearward in this position.
Block all trailer tires in front and behind with appropriate wheel chocks (do not use stones, wood blocks or other substitutes). Front trailer lifting jacks must support the trailer and rest on a firm, level surface. The towing vehicle must be stationary with automatic transmission in park (manual in neutral), emergency brake applied, and engine off. Never position yourself or others under the trailer's kingpin area during coupling and uncoupling. Improperly coupled trailers can separate and drop without notice.
The danger zone is the area under the trailer's kingpin and around the 5th wheel hitch. Never position yourself, your body parts, or others under the trailer's kingpin area during coupling and uncoupling. Improperly coupled trailers can separate and drop without notice. If you must position any part of your body under the trailer, between the truck and trailer, or between the trailer's kingpin and 5th wheel hitch, follow the Danger Zone Precautions section in the manual.
Never exceed the vehicle manufacturer's recommended towing capacity. The trailer and its contents combined must not exceed your tow vehicle, hitch, and trailer tow ratings. Exceeding rated capacity may result in separation, damage to the 5th wheel hitch, towing vehicle, trailer, or serious injury or death.
After installation, verify that the slider moves smoothly fore and aft on the rails. Ensure all 4 rail pins are positioned correctly and all 4 rail clips are secured. Before towing, ensure all components and hardware are structurally sound and secure. Periodically check the torque to ensure no fasteners have become loose.
Periodically apply a light coating of grease to the surface of the half-round rails and penetrating oil to the locking bar (using the access holes on the top side of the cross tube) and the four hex bolts and rollers. Prior to towing, ensure all components and hardware are structurally sound and secure. Periodically check the torque to ensure no fasteners have become loose.
Ensure the carriage has travelled to the opposing lock position. Manually reset the handle to the lock position. Visually inspect the spring located under the cross tube. Check that the locking bar is free-moving and clear of any debris. If the problem persists, contact CURT Product Support at 877-287-8634.
Return the carriage back to the previous position and reset the handle. Check that the locking bar is free-moving and clear of any debris. Attempt to maneuver the carriage to the opposing lock position, ensuring the handle returns to the locked position. If the problem persists, contact CURT Product Support at 877-287-8634.
The slider requires 5th wheel base rails (sold separately) that must be properly installed and parallel on your truck bed. Verify your truck can accommodate the base rails and that the slider's 12-inch forward/rearward movement will not interfere with your truck bed or cab. Consult your truck manufacturer or a CURT dealer for fitment confirmation.
You need a torque wrench and socket set. Installation is rated Easy difficulty.
The manual does not mention drilling. The slider is placed into existing base rail slots and secured with provided rail pins and clips.
Torque all 5th wheel head bolts to the specification indicated in your 5th wheel head unit's installation manual. The torque value is not provided in this slider manual.
Maximum 25,000 lbs gross trailer weight. Never exceed this limit or use on heavier trailers.
Ensure all rail pins and clips are secured, the slider moves smoothly, all hardware is tight, and all components are structurally sound. Verify the lock bar fully engages in both maneuver and tow positions.
Periodically apply light grease to the half-round rails and penetrating oil to the locking bar, hex bolts and rollers. Periodically check torque on all fasteners before towing.
| Kit # | Head Series | GTW / Vertical Load | Hitch with Standard Legs # | Head Only # | Slider Only # | Base Rails # | Height Range |
|---|---|---|---|---|---|---|---|
| Long-Bed Options | |||||||
| 16120 | A16 | 16,000 / 4,000 lbs. | 16120 | -- | -- | -- | 13" - 17" |
| 16121 | A16 | 16,000 / 4,000 lbs. | -- | 16120 | -- | 16200 | 14" - 18" |
| 16140 | A20 | 20,000 / 5,000 lbs. | 16140 | -- | -- | -- | 13" - 17" |
| 16141 | A20 | 20,000 / 5,000 lbs. | -- | 16140 | -- | 16200 | 14" - 18" |
| 16180 | A25 | 25,000 / 6,250 lbs. | 16180 | -- | -- | -- | 13" - 17" |
| 16181 | A25 | 25,000 / 6,250 lbs. | -- | 16180 | -- | 16200 | 14" - 18" |
| 16190 | A30 | 30,000 / 7,000 lbs. | 16190 | -- | -- | -- | 13" - 17" |
| 16191 | A30 | 30,000 / 7,000 lbs. | -- | 16190 | -- | 16205 | 14" - 18" |
| Short-Bed Options | |||||||
| 16052 | A16 | 16,000 / 4,000 lbs. | -- | 16520 | 16564 | -- | 17-1/2" - 21-1/2" |
| 16053 | A16 | 16,000 / 4,000 lbs. | -- | 16520 | 16564 | 16204 | 18-1/2" - 22-1/2" |
| 16352 | A20 | 20,000 / 5,000 lbs. | -- | 16540 | 16564 | -- | 17-1/2" - 21-1/2" |
| 16353 | A20 | 20,000 / 5,000 lbs. | -- | 16540 | 16564 | 16204 | 18-1/2" - 22-1/2" |
| 16551 | A25 | 25,000 / 6,250 lbs. | -- | 16580 | 16574 | -- | 17-1/2" - 21-1/2" |
| 16553 | A25 | 25,000 / 6,250 lbs. | -- | 16580 | 16574 | 16204 | 18-1/2" - 22-1/2" |
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Original price was $988.95. Current price is $839.95.You save $149.00 (15%)
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