Fulton 5,000 lbs Straight Coupler, 2 in. Diameter, 3 in. Channel Width FL34300 0317Fulton$44.80Out of Stock
View productAsk a Question About This Product
Our in-house experts typically reply within one business day.
Our in-house experts typically reply within one business day.
Fulton
Always the correct part
We know our products
Quality Products
Free Shipping!
Always the correct part
We know our products
Quality Products
Free Shipping!
Fulton has produced marine and utility trailer hardware for more than a century, and its jacks, winches and couplers are a standard for light and medium-duty trailering. The XLT and F2 series cover swivel and fixed jacks, hand and powered winches from 1,500 to 3,200 pounds, and couplers built to keep working in wet, salty conditions.
With more than a hundred years of production behind it, Fulton has become the reference point for light and medium-duty trailer hardware, particularly on the marine side. That environment is the toughest test a trailer component faces. A boat trailer is reversed into fresh or salt water on every launch and left to sit wet, which finds every weakness in plating, sealing and material choice. Fulton's stated position is that the brand performs best when the weather is at its worst, and its product engineering reflects that. It sits within the Horizon Global towing group alongside Reese, Draw-Tite, Bulldog, Tekonsha and Wesbar.
Marine and utility jacks anchor the line. The XLT Series marine jack uses a bolt-through swivel mount built from three-dimensionally formed heavy-gauge steel stampings with a proprietary bushing material, a combination chosen to minimise deflection under tongue load while keeping the swivel action working after years of exposure. The F2 Series takes corrosion resistance further as the industry's only extruded aluminium marine jack with an anodised finish, which removes the rust problem at its source rather than coating over it. The wider trailer jack range covers topwind, sidewind and drop-leg configurations.
Trailer winches pull boats onto bunks and rollers. XLT Series winches use efficient gear ratios, full-length drum bearings, oil-impregnated shaft bushings and a Comfort Grip handle that makes the last few turns under load bearable, in 1,500 and 1,800 pound capacities. F2 Series winches use an enclosed frame for a cleaner look and added protection, in 1,600, 2,000 and 3,200 pound models, including two-speed options that trade line speed for cranking effort.
Couplers complete the range, including A-frame couplers matched to common tongue sizes and load ratings, serving boat owners, utility trailer users and trailer manufacturers.
Experts available to answer your questions
Call 888-634-94945 Years
A stamped coupler is a trailer hitch coupler that connects a trailer tongue to a towing vehicle's hitch ball. It holds the trailer securely during towing and allows quick coupling and uncoupling. This manual covers both bolt-on and weld-on installation methods for Class 1, 2, 3, and 4 couplers with straight or A-frame (50-degree) tongues.
No. Straight tongue couplers fit standard straight tongues. A-frame couplers can only be used with 50-degree trailer tongues. The coupler class (1, 2, 3, or 4) must be appropriate for your trailer's weight and application. Consult your trailer manufacturer or contact Cequent Performance Products at 1-800-632-3290 or www.cequentgroup.com if uncertain.
Use only the proper ball size indicated on the coupler body itself. If you are uncertain which size is correct, contact Cequent Performance Products at 1-800-632-3290 or www.cequentgroup.com. Using an incorrect ball size will prevent proper seating and safe operation.
For Class 1 couplers, the preferred method is to use four (4) 3/8" grade 5 bolts through the side holes. An alternate method is to use two (2) 3/8" grade 5 through bolts and locknuts, provided they can be torqued to appropriate SAE proof load specifications (23 ft. lbs. for 3/8" fasteners). The trailer manufacturer must specify the exact number and size of fasteners required for your application.
For Class 2, 3, and 4 couplers, the preferred method is to use four (4) 1/2" grade 5 bolts through the side holes. An alternate method is to use two (2) 1/2" grade 5 through bolts and locknuts, provided they can be torqued to appropriate SAE proof load specifications (55 ft. lbs. for 1/2" fasteners). The trailer manufacturer must specify the exact number and size of fasteners required for your application.
A-frame couplers are bolted to the tongue members using grade 5 hardware with locknuts through the available mounting holes in the coupler housing. For couplers using 1/2" hardware, washers must be placed beneath all bolt heads and locknuts. Torque grade 5 bolts with locknuts to appropriate SAE proof load specifications (55 ft. lbs. for 1/2" fasteners). No deformation of the trailer tongue end is allowed.
Yes, gussets are required if the tongue height is 6 inches or less. The mounting bracket must be centered on the tongue and remain vertical after installation. A 1/4" minimum fillet weld is required all around the bracket.
A minimum coupler/tongue overlap of 6.5 inches is required. The coupler's internal stop must be butted against the end of the trailer tongue to achieve maximum overlap.
Yes. Before mounting the coupler, confirm that there will be no interference from the tow vehicle, tongue, ground, or any other mounted accessories while stationary or in motion. Check for interference in both open and closed positions before installing, and check again after installation is complete.
1. Assure the coupler's internal stop is butted against the end of the trailer tongue for maximum overlap. 2. Insert the required grade 5 bolts through the side holes (or through bolts with locknuts, depending on your coupler class). 3. Tighten all fasteners to the appropriate SAE proof load specification. 4. Ensure no deformation of the trailer tongue end occurs. 5. After installation, verify that coupler operation has not been impaired.
1. Center the mounting bracket on the tongue and ensure it remains vertical after installation. 2. If tongue height is 6 inches or less, install gussets. 3. Apply a 1/4" minimum fillet weld all around the bracket. 4. Insert two (2) 5/8" x 5" grade 5 bolts through the two sets of holes in the mounting bracket and coupler. 5. Tighten the locknuts to 100-110 ft. lbs. 6. Verify coupler operation has not been impaired.
Torque 3/8" grade 5 fasteners to 23 ft. lbs. according to SAE proof load specifications.
Torque 1/2" grade 5 fasteners to 55 ft. lbs. according to SAE proof load specifications.
Torque 5/8" grade 5 fasteners to 110 ft. lbs. according to SAE proof load specifications.
Tighten the two (2) 5/8" x 5" grade 5 locknuts to 100-110 ft. lbs.
Welding is required only for weld-on couplers. Bolt-on couplers do not require welding. If you choose the weld-on method or need to install a mounting bracket with gussets, all welding must be performed by an AWS-certified welder.
A 1/8" minimum fillet weld is required on both sides and the top of the coupler.
A 3/16" minimum fillet weld is required on both sides and the top of the coupler.
A 1/4" minimum fillet weld is required all around the mounting bracket.
Before towing, perform these checks: (1) Inspect the vehicle, mounting bracket, hitch, hitch ball, and coupler for signs of wear or damage. (2) Verify the coupler handle opens and closes freely. (3) Close the coupler securely, ensuring the hitch ball is fully seated in the ball pocket and the handle or latch is in the closed position. (4) Check mounting bracket hardware for wear and proper tightness; tighten to appropriate SAE proof load specifications using only grade 5 hardware. (5) Verify trailer safety chains are properly connected per SAE J684. (6) Confirm all trailer lighting is hooked up and working properly. (7) Do not tow if the ball is not fully seated or the coupler is not closed.
Do not exceed the lesser of the mounting bracket, coupler, hitch, vehicle, ball, or trailer weight ratings (including load). Weigh your trailer plus any added load before towing. The coupler class (1, 2, 3, or 4) determines its weight capacity; consult your coupler marking or contact Cequent Performance Products at 1-800-632-3290 if uncertain.
Block the trailer wheels before coupling. Align the hitch ball beneath the coupler ball pocket. Then follow the coupling procedure for your specific coupler style (Fas-Lok, Yoke-style, or Low-Latch).
1. Block trailer wheels and align the hitch ball beneath the coupler ball pocket. 2. Open the coupler by pulling the latch trigger and lifting the locking lever. 3. Lower the coupler over the hitch ball until the ball is fully seated into the ball pocket. 4. Move the locking lever to the closed position. 5. Check that the latch is engaged by lifting up on the back of the locking lever. 6. Verify that the hitch ball is fully seated and the ball clamp is below the ball. If the ball is not seated with the lever in the closed position and latch engaged, do not tow; repeat the steps.
1. Block trailer wheels and align the hitch ball beneath the coupler ball pocket. 2. Open the coupler by (1) lifting the latch, (2) raising the yoke, and (3) pulling back, resting it on top of the coupler nose. 3. Lower the coupler over the hitch ball until the ball is fully seated into the ball pocket. 4. Push the latch handle forward until the yoke drops over the coupler nose and the latch handle tips enter the slots on top of the coupler. 5. Check that the hitch ball is fully seated and the ball clamp is below the ball. If the ball is not seated with the yoke in the closed position and latch handle engaged, do not tow; repeat the steps.
1. Block trailer wheels and align the hitch ball beneath the coupler ball pocket. 2. Open the coupler locking lever by (1) lifting the latch upward and (2) pulling back. 3. Lower the coupler over the hitch ball until the ball is fully seated into the ball pocket. 4. Move the locking lever forward until the latch handle tips enter the slots on top of the coupler. 5. Check that the hitch ball is fully seated and the ball clamp is below the ball. If the ball is not seated with the lever in the closed position, do not tow; repeat the steps.
1. Block the trailer wheels. 2. Open the locking lever. 3. Raise the trailer off the hitch ball. 4. Return the handle to the closed position.
Use caution when uncoupling because the tongue may rise suddenly due to negative tongue load. Always block the trailer wheels before uncoupling.
Do not use the coupler. After installing the mounting bracket and/or coupler, if coupler operation has been impaired in any way, do not use it. If the coupler and/or mounting bracket is deformed or damaged, replace the complete coupler and mounting bracket.
After installation is complete, verify that coupler operation has not been impaired in any way. Check that the coupler opens and closes freely and that the ball pocket and latching mechanism are clear of any obstructions. If you painted or primed the coupler, remove any excess paint/primer buildup from the ball pocket and latching mechanism. Do not use the coupler if its operation has been impaired.
Perform the following maintenance at least annually: (1) Check welds and mounting bolt torque. Tighten any loose hardware to appropriate SAE proof load specifications using only grade 5 hardware. (2) Grease the ball pocket. (3) Oil pivot points with SAE 30 wt. motor oil. Keep the ball pocket and mechanism clean at all times. When parking or storing the trailer, keep the coupler off the ground so dirt and other foreign material will not build up in the coupler ball pocket.
Maintenance should be performed at least annually. This includes checking welds and mounting bolt torque, greasing the ball pocket, and oiling pivot points with SAE 30 wt. motor oil.
Cequent Performance Products warrants the product to the original consumer purchaser only. Bulldog and Fulton products are covered for five years; Pro-Series and Reese Towpower products are covered for one year. The warranty covers defects in material and workmanship, excluding ordinary wear and tear, provided installation and use comply with the product instructions. The warranty does not cover damage from abuse, neglect, misuse, accidents, misapplication, overloading, improper installation (including welds), improper maintenance, or product alteration by anyone other than the manufacturer.
To make a warranty claim, contact Cequent Performance Products at 47912 Halyard Dr. Suite 100, Plymouth, MI 48170, phone 1-800-632-3290, or www.cequentgroup.com. Identify the product by model number and follow the claim instructions provided. You must provide the product and your purchase receipt to process the claim. You are responsible for return shipping costs. The warranty is governed by the laws of the State of Michigan.
This coupler fits straight-tongue or 50-degree A-frame trailers. Verify the coupler class (1, 2, 3, or 4) matches your trailer's weight and application. Contact Cequent Performance Products at 1-800-632-3290 if uncertain.
Use four (4) 3/8" grade 5 bolts through side holes (preferred) or two (2) 3/8" grade 5 through bolts with locknuts. Torque to 23 ft. lbs. Your trailer manufacturer must specify exact requirements.
Use four (4) 1/2" grade 5 bolts through side holes (preferred) or two (2) 1/2" grade 5 through bolts with locknuts. Torque to 55 ft. lbs. Your trailer manufacturer must specify exact requirements.
Yes, gussets are required if the tongue height is 6 inches or less. A 1/4" minimum fillet weld is required all around the bracket.
Tighten the two (2) 5/8" x 5" grade 5 locknuts to 100-110 ft. lbs.
Inspect the coupler, hitch, ball, and mounting bracket for wear or damage. Verify the coupler handle opens and closes freely. Ensure the hitch ball is fully seated and the coupler is closed. Check mounting hardware tightness. Verify safety chains and trailer lights are connected and working.
At least annually: check welds and mounting bolt torque, grease the ball pocket, and oil pivot points with SAE 30 wt. motor oil. Keep the ball pocket and mechanism clean.
Check for the following: (1) Verify you are using the correct hitch ball size for your coupler (size is marked on the coupler body). (2) Clean the coupler ball pocket thoroughly to remove dirt, debris, or paint buildup. (3) Ensure the coupler is fully open before attempting to seat the ball. (4) Verify the hitch ball is not bent or damaged. (5) If the ball still will not seat, do not tow. Contact Cequent Performance Products at 1-800-632-3290 or www.cequentgroup.com for assistance.
Check for the following: (1) Clean the coupler ball pocket and latching mechanism thoroughly to remove dirt, debris, or paint buildup. (2) Verify the hitch ball is fully seated in the ball pocket. (3) Ensure the latch handle or lever is being moved to the fully closed position. (4) Check that the latch handle tips are fully entered into the slots on top of the coupler. (5) Inspect the latch mechanism for damage or deformation. (6) If the latch still will not engage, do not tow. The coupler operation has been impaired and must be replaced.
Clean the coupler ball pocket and latching mechanism thoroughly to remove dirt, debris, or paint buildup. Oil the pivot points with SAE 30 wt. motor oil. If the handle still operates with difficulty or does not move freely, the coupler operation has been impaired. Do not use the coupler; it must be replaced.
Tighten all mounting bracket hardware to the appropriate SAE proof load specifications: 23 ft. lbs. for 3/8" fasteners, 55 ft. lbs. for 1/2" fasteners, or 100-110 ft. lbs. for 5/8" fasteners (depending on your coupler type). Use only grade 5 hardware. Check bolt tightness at least annually as part of routine maintenance. Do not tow if mounting hardware is loose.
Do not use the coupler. The manual states: 'If the coupler and/or mounting bracket is deformed or damaged, replace the complete coupler and mounting bracket.' Deformation impairs coupler operation and compromises safety. Contact Cequent Performance Products at 1-800-632-3290 or www.cequentgroup.com to arrange replacement.
Jennifer
Ordered online. Shipment arrived on time and with all the correct parts. Great customer service and friendly staff. Also, pricing was great!
May 22, 2023
On Sale Today
Original price was $70.00. Current price is $58.85.You save $11.15 (16%)
Free Shipping
Ships free on all orders
Authorized Dealer
FREE ShippingFREE SHIPPING
Estimated delivery Mon, Aug 10 - Thu, Aug 13
Order before 2 PM EST Monday–Friday for same-day processing
Guaranteed safe & secure checkout