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2016 - 2019 Chevrolet Silverado 2500 HD
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2016 - 2019 Chevrolet Silverado 3500 HD
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2016 - 2019 GMC Sierra 2500 HD
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2016 - 2019 GMC Sierra 3500 HD
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The name you know and the brand you trust brings you the latest in fifth wheel towing: the REESE M5. Whether youre a novice or youve been towing for years, REESE has the hitch you need to connect your truck and trailer safely and securely. Designed with state-of-the-art equipment by top-of-the-line engineers, REESEs complete line of M5 fifth wheel hitches is built to last! Featuring a three-part modular design, with wider stance legs, tighter tolerances, and the industrys best shock absorption system! Plus, an exclusive Talon Jaw that is always ready to receive, gripping the pin to eliminate lateral chucking and reduce sway and noise.
The REESE M5 fifth wheel hitch line combines the latest in technology, rugged endurance, and a sleek design for a quick hook-up and strong performance while on the road, with a clear tow/no tow indicator so you know when your connection is secure, and an ergonomic, easy-reach handle that requires less force to operate. When youre done towing, REESEs fifth wheel hitches are easy to remove, giving you access to the bed of your truck in no time. So tow with the confidence that only REESE can provide and make the journey as enjoyable as the destination.
| BRAND: | REESE |
| PART NUMBER: | 30890 |
| WARRANTY: | LIMITED LIFETIME WARRANTY |
| WEIGHT: | 145.6 LBS |
| CAPACITY: | 20,000 LBS. |
| PIN WEIGHT CAPACITY: | 5,000 LBS. |
| GROSS TOWING WEIGHT: | 20,000 LBS. |
| BASE LENGTH: | 32.4 IN. |
| BASE WIDTH: | 25.06 IN. |
| BASE HEIGHT: | 19.39 IN. |
| VERTICAL ADJUSTMENT: | 14 IN. TO 18 IN. |
| WELDING REQUIRED: | NO |
| LOCKABLE: | YES |
| WIRING HARNESS INCLUDED: | NO |
| JAW TYPE: | SINGLE |
| FORE AND AFT PIVOT: | 15 DEGREE |
| DRILLING REQUIRED: | NO |
| MOUNTING HARDWARE INCLUDED: | NO |
| MOUNTING HOLE QUANTITY: | 4 |
| HITCH TYPE: | STATIONARY |
| MATERIAL: | STEEL |
| SIDE TO SIDE PIVOT: | 15 DEGREES |
| BOLT GRADE: | METRIC 10.9 |
| COLOR: | BLACK/BLUE |
Reese has designed towing equipment since 1952 and remains a benchmark for heavy-duty towing. The line covers fifth wheel hitches such as the modular M5, gooseneck couplers including the Goose Box, air-ride and short-bed pin boxes, weight distribution systems with active sway control, and the accessories that connect them, all built to exceed published industry standards.
Reese has been pioneering towing performance since 1952, when Margaret Reese asked her husband TJ to stop travel trailers rocking every time somebody walked through them. His answer, the first pair of stabilising jacks, was simple and effective enough to change the RV industry. From that starting point Reese grew into a designer and manufacturer of complete towing systems, and today it anchors the heavy-duty end of the Horizon Global towing portfolio.
Fifth wheel towing is where the brand's engineering is most visible. The M5 fifth wheel hitch uses a modular design that breaks into manageable sections for assembly, with a wider stance, tighter tolerances and a shock absorption system aimed at the jolts that travel up through a truck bed. For owners who would rather tow from a gooseneck coupler and keep the bed clear, the Goose Box 20K replaces the trailer's king pin with a gooseneck connection carrying its own air-ride cushioning.
Pin boxes are a Reese speciality. The 5th Airborne uses air-ride technology to dampen road shock and reduce the chucking motion that makes fifth wheel towing tiring, while the Sidewinder was designed for short-bed pickups, pivoting the connection point so the trailer can turn sharply without the front cap meeting the cab.
For conventional towing, Reese weight distribution systems restore load to the tow vehicle's front axle and control sway. The Pro Round Bar distributes weight evenly while damping sway, and the Pro Dual Cam II uses active cam-based sway control that works harder the stronger the sway force becomes. Complete kits pair bars, head and shank to a rated tongue weight, and dedicated sway control kits can be added to existing setups. The products suit RV owners, horse and livestock haulers and anyone towing near the upper end of a vehicle's rating.
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Introducing the REESE® M5 Fifth Wheel Hitch
4 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2016 - 2019 | Chevrolet Silverado 2500 HD | Fifth Wheel Trailer Hitch: 20K 20,000/5,000 lbs. when used with a Weight Distribution Kit (tongue weight/gross trailer weight) Drilling Required Install Time is 0 minutes Rated 20k Capacity |
| 2016 - 2019 | Chevrolet Silverado 3500 HD | Fifth Wheel Trailer Hitch: 20K 20,000/5,000 lbs. when used with a Weight Distribution Kit (tongue weight/gross trailer weight) Drilling Required Install Time is 0 minutes Rated 20k Capacity |
| 2016 - 2019 | GMC Sierra 2500 HD | Fifth Wheel Trailer Hitch: 20K 20,000/5,000 lbs. when used with a Weight Distribution Kit (tongue weight/gross trailer weight) Drilling Required Install Time is 0 minutes Rated 20k Capacity |
| 2016 - 2019 | GMC Sierra 3500 HD | Fifth Wheel Trailer Hitch: 20K 20,000/5,000 lbs. when used with a Weight Distribution Kit (tongue weight/gross trailer weight) Drilling Required Install Time is 0 minutes Rated 20k Capacity |
Yes, the M5 head (30892) is designed for installation with M5 mounting legs and center section on GM trucks. The M5 GM Leg (30889) is the compatible leg assembly for GM vehicles. Legs and center section are sold separately.
The M5 hitch is rated for 20,000 lbs with a maximum pin weight of 5,000 lbs. Do not exceed your towing vehicle manufacturer's recommended towing capacity.
An M13 wrench is required to tighten the handle assembly carriage bolts, lock washers, and nuts. A grease needle (typically available at auto parts stores) is needed to apply grease to the head.
An M24 socket, pliers, and a torque wrench are required. The M24 socket is used with the M16 hex-head bolts that attach the legs to the center section.
Each M16 hex-head bolt must be tightened to 220 ft-lb of torque. This torque must be checked every 1,000 miles to ensure the bolts remain properly tightened.
The manual does not describe any drilling, cutting, or permanent modifications required for installation. The M5 GM Leg comes pre-assembled and ready to install, and the head and center section attach using existing mounting holes.
A minimum of 6 inches clearance is required between the truck bed rail and the bottom of the trailer. The M5 GM Leg has 4 inches of vertical adjustment to help achieve this clearance.
Before hitching: lower the truck tailgate if necessary, place blocks/chocks firmly against each trailer wheel to prevent motion, ensure the pin box is at correct height (bottom of pin box aligned with top of skid plate ramp ±1 inch), and ensure the head is in Ready-to-Receive position (handle pulled out fully until audible click is heard, indicator shows RED).
After backing the truck into the trailer and inserting the bail pin, perform a pull test with trailer wheels firmly blocked, landing gears on the ground supporting trailer weight, and trailer brake on. Try to pull the trailer slowly forward. If properly hitched, the trailer will not separate. If not properly hitched, the trailer will separate and the truck will move forward—repeat hitching steps. No one should be between the truck and trailer during the test.
Before each trip, verify that lynch pins, foot bracket, and castle nut are not damaged and are securely locked, with little to no vertical play. Every 1,000 miles, check the M16 hex bolts connecting the center section to the legs to ensure they are still torqued to 220 ft-lb.
The M5 head assembly includes: one head unit, one handle, two ½" pull pins, two spring clips, two M8 carriage bolts, two M8 lock washers, two M8 nuts, and four bolts and washers (supplied with the leg unit). The legs and center section are sold separately.
The M5 GM Leg includes: one pre-assembled leg unit, four M16 x 40mm hex-head bolts (CL10.9), four 5/8" conical washers, four T-pin locking handles, four lynch pin handle locks, four castle nuts, eight lynch pins, four T-pins, and four T-bushings. The leg comes pre-assembled, adjusted, and ready to install.
No. The manual states that the center section is sold separately and is required for installation. The head attaches to the center section, which in turn attaches to the legs.
No. The legs are sold separately and are required for installation. The center section attaches to the legs, which mount to the truck bed.
Slide the tube over the bar as shown in the manual, then securely tighten with two M8 carriage bolts, two M8 lock washers, and two M8 nuts using an M13 wrench. The handle should be snug when fully tightened.
1. Apply grease to the head-to-center-section interface. 2. Place the head unit on top of the center section, avoiding pinch points. 3. Insert the pull pin on each side as shown in the manual. 4. Secure each pull pin with a spring clip. 5. Inspect through the sight holes on top of the head pan to confirm the clips are assembled correctly. Both sides require pins and clips.
1. Determine which center section mounting holes to use to ensure minimum 6 inches clearance between truck bed rail and trailer bottom. Legs must be attached at the same height on both sides. 2. Using four M16 x 40mm hex-head bolts, attach the legs to the center section by threading the bolts from inside the center section into the threaded portion of the legs. 3. Finger tighten initially until final adjustments are made. 4. Ensure the flanges on the leg structure are completely seated in the corresponding holes of the center section. 5. Once positioned, tighten each M16 bolt to 220 ft-lb of torque.
1. Remove the four lynch pins. 2. Position the legs over the pucks with the handles in the OPEN position. 3. Once the unit is placed in the pucks, rotate the handles back to the CLOSED position. 4. Insert the lynch pins back into each foot to prevent the handles from opening during operation.
Due to variations in truck underbed, some handles may be loose and rattle or unable to close fully, while others may be too tight. If a handle is too loose: remove the lynch pin, adjust the castle nut by hand to a position where the handle does not rattle and is able to close, then re-insert the lynch pin and close the loop over the nut to hold it in place. Finger tighten the castle nut only—do not install the lynch pin until final adjustments are made.
After tightening each M16 hex-head bolt to 220 ft-lb of torque, lift each side of the hitch to verify it is tight to the truck bed. There should be no movement or play.
The center section has a hole provided for a 5/16" eye bolt to attach the trailer breakaway cable. This hole is accessible through the logo/load rating slot on the center section.
Before first use, apply grease to: (A) the skid plate surface to provide a lubricated surface for trailer attachment (plastic lube plates up to 3/16" thick can be used instead; REESE 5th Wheel Lube Plate #83001 is recommended); (B) the 5th wheel jaw and/or kingpin on the trailer; (C) via the grease fitting on top of the unit using a grease needle (the head comes pre-greased); and (D) spray white lithium grease on internal mechanisms and rotate the handle a few times to distribute the lubricant. Wipe down the unit to remove large debris before applying grease.
Plastic lube plates must not exceed 3/16" in thickness to ensure the hitch works properly. REESE 5th Wheel Lube Plate #83001 is recommended as an alternative to messy grease.
The pivot assembly can be greased using a grease gun with a needle adapter installed. The pivot grease fitting is accessible through the logo/load rating slot on the center section. If the head pivots and makes noise when the trailer is not attached, you can adjust the resistance by tightening the pivot bolt 1/2 turn at a time (maximum 2 full turns). The pivot assembly resistance is preset at the factory.
The indicator light shows RED when the head is in Ready-to-Receive position (when delivered, when hitch not in use, when coupling to trailer, or after uncoupling from trailer) or in Unhitching position. The indicator shows GREEN only when the head is in Locked position (when coupled to trailer and the handle holes align for bail pin insertion).
The head is in Ready-to-Receive position when: (1) the handle is pulled out fully until an audible click is heard and the holes do NOT align for the bail pin, (2) the handle is easily movable towards the cab and returns to the default position upon release, and (3) the indicator shows RED.
The head is in Locked position when: (1) the handle is in a position where the holes align for bail pin insertion, and (2) the indicator ONLY shows GREEN. This position occurs when the trailer is coupled to the hitch.
The head is in Unhitching position when: (1) the handle is in the position shown in the manual (pulled out fully until an audible click is heard, then rotated towards the cab), and (2) the indicator shows RED. This position is used when unhitching the trailer.
The bottom of the pin box should be aligned with the top of the skid plate ramp ±1 inch (the contact zone). This ensures proper coupling of the trailer kingpin with the 5th wheel jaw.
If the jaw does not close even when fully backed into the trailer, it may be under compression. Pull the truck slowly forward to remove the load on the jaw. The handle will then fully latch.
If the handle will not move to the unhitching position with ease, STOP and DO NOT FORCE THE HANDLE. The jaw may not open if under tension. Slowly reverse the truck to remove the load on the jaw before attempting to unhitch the trailer.
Before unhitching: (1) place blocks/chocks firmly against each trailer wheel to prevent forward or rearward motion, (2) lower trailer jacks and ensure they are firmly on the ground, (3) lower the truck tailgate if necessary, and (4) disconnect the electrical cable and breakaway switch cable between truck and trailer.
1. Ensure the trailer is secure with blocks/chocks against wheels and jacks lowered and on the ground. 2. Disconnect electrical and breakaway switch cables. 3. Remove the bail pin. 4. Move the handle to the unhitching position by pulling it out fully until an audible click is heard, then rotating it towards the cab. 5. Drive the truck slowly away from the trailer. If there is tension between truck and trailer, the handle may start to return to ready-to-receive position, but the trailer will still uncouple.
Yes. The center section can be rotated 180 degrees to increase the gap between the trailer front and truck cab by 1-1/2 inches. This requires removing the head, removing the bolts holding the legs to the center section, rotating the center section, and reconnecting the center section and legs. The head springs must also be flipped from right to left and tightened to 7-8 ft-lbs. Detailed instructions are provided in the manual. The location of the kingpin should be ahead of the truck rear axle with proper truck cab clearance.
1. Pull the spring clips off the head retainer pins. 2. Pull the head retainer pin out of the head (a slight push down on the head will help). Avoid getting fingers pinched. 3. Lift the head off and set aside.
1. Re-apply grease to the head and center section interface. 2. Place the head on the center section, placing hands or fingers on either side of the pivot interface to prevent pinching. 3. Insert the head retainer pins and secure with spring clips per the head instructions.
Every 1,000 miles, check the M16 hex bolts that connect the center section to the legs to ensure they are still torqued to 220 ft-lb of torque.
Before each trip, verify that: (1) lynch pins are not damaged and are securely locked, (2) the foot bracket is not damaged and is securely locked, (3) the castle nut is not damaged and is securely locked, and (4) the lynch pins have little to no vertical play. The lynch pin should be in the properly closed position with the loop on the correct side of the pin.
The lynch pin should be in the properly closed position. Do not reverse the loop to the other side of the pin. The manual shows the correct orientation in the maintenance section diagram.
Horizon Global provides a Limited Lifetime Warranty to the original consumer purchaser only. The product is warranted to be free from material defects in material and workmanship for the lifetime of ownership, ordinary wear and tear excepted, provided installation and use are in accordance with product instructions. The warranty does not cover normal wear and tear, damage from abuse, neglect, misuse, accidents, misapplication, overloading, improper installation, improper maintenance, or product alterations by anyone other than Horizon Global (except alterations made per product instructions in a workmanlike manner). Product replacement is the sole remedy. To make a claim, contact Horizon Global at 47912 Halyard Drive Suite 100, Plymouth, MI 48170, 1-800-632-3290, and provide the product model number and purchase receipt.
If the head pivots and makes noise when the trailer is not attached, adjust the pivot assembly resistance by tightening the pivot bolt 1/2 turn at a time (maximum 2 full turns). The pivot assembly resistance is preset at the factory. If noise persists after adjustment, the pivot assembly may need to be rebuilt—instructions for rebuilding are provided in the rebuild kit.
If the trailer is not properly hitched during the pull test (the trailer separates from the hitch and the truck moves forward), repeat the hitching steps 1 through 3. Ensure the truck and trailer are properly positioned, the pin box is at the correct height (bottom of pin box aligned with top of skid plate ramp ±1 inch), the head is in Ready-to-Receive position (handle pulled out fully until audible click, indicator shows RED), and the truck is backed slowly into the trailer so the kingpin and 5th wheel funnel align.
If a handle appears too loose and rattles or cannot be closed fully, remove the lynch pin and adjust the castle nut by hand to a position where the handle does not rattle and is able to close. Once the adjustment is satisfactory, re-insert the lynch pin and close the loop over the nut to hold it in place. Finger tighten the castle nut only—do not install the lynch pin until final adjustments are made.
If a handle appears too tight to lock, remove the lynch pin and adjust the castle nut by hand to a position where the handle is able to close. Once the adjustment is satisfactory, re-insert the lynch pin and close the loop over the nut to hold it in place. Finger tighten the castle nut only—do not install the lynch pin until final adjustments are made.
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