Reese M5 Fifth Wheel Hitch 27,000 lbs. Capacity, GMReeseOriginal price was $1,753.75. Current price is $1,496.65.Out of Stock
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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
The M5 Head & Center Section is rated for 27,000 lbs gross towing capacity with a maximum pin weight of 6,750 lbs.
Yes. The M5 Head & Center Section (parts 30892 and 30894) requires M5 mounting legs, which are sold separately. Leg assembly instructions are provided with the leg unit. The manual shows GM as an example application.
A minimum of 6 inches of clearance is required between the truck bed rail and the bottom of the trailer. The center section has 3 possible attachment locations providing 4 inches of overall height adjustment to achieve this clearance.
Required tools include: fastener kit 30892F, M13 socket and wrench, M24 socket and wrench, torque wrench, and lithium grease. A grease needle (typically available at auto parts stores) is also needed for maintenance.
The head and center section include: 2 x ½" pull pins, 2 x spring clips, 2 x M8 carriage bolts, 2 x M8 lock washers, 2 x M8 nuts, 2 x M16x2x40mm cl10.9 bolts, 2 x 5/8" conical washers, and 2 x M16 x 2 nuts cl10. Additional bolts and washers (item 7) are supplied with the leg unit. The fastener kit 30892F is required for installation.
The bottom of the pin box should be aligned with the top of the skid plate ramp, with a tolerance of +/- 1 inch. This is the contact zone for proper hitching. Correct height is essential before attempting to couple the trailer.
Slide the tube over the bar and securely tighten using the M8 carriage bolts, M8 lock washers, and M8 nuts with an M13 wrench. The handle should be snug when properly tightened.
1. Apply grease to the pivot area (see page 3, figure 9). 2. Place the head unit on top of the center section, avoiding pinch points. 3. Insert the pull pin as shown in figure 6 and secure with spring clips on both sides. 4. Inspect through the sight holes on top of the head pan to confirm clips are assembled correctly (figure 7).
Lithium grease is required. The manual specifies white lithium grease for internal mechanisms. Plastic lube plates can be used on the skid plate surface instead of grease, but must not exceed 3/16" in thickness. REESE 5th Wheel Lube Plate #83001 is recommended as an alternative.
Grease should be applied to: 1) the skid plate surface (every use), 2) the 5th wheel jaw and/or kingpin on the trailer (every use), 3) via the grease fitting on top of the unit using a grease needle (annually), and 4) to internal mechanisms with spray white lithium grease, rotating the handle to distribute (annually). The pivot grease fitting is accessible through the logo/load rating slot.
The head is in Ready-to-Receive position when: the handle is pulled out so holes do not align for the bail pin, the handle is easily movable towards the cab and returns to default position when released, and the indicator shows RED. This is the correct position when delivered, when the hitch is not in use, and when coupling to a trailer.
The head is in Locked position when the handle is positioned so the holes align for bail pin insertion and the indicator shows GREEN only. This position occurs when the hitch is coupled to a trailer.
1. Verify the 5th wheel is correctly secured, tailgate is lowered if necessary, blocks/chocks are firmly against trailer wheels, pin box is at correct height (bottom aligned with top of skid plate ramp +/- 1 inch), and head is in Ready-to-Receive position. 2. Back the truck slowly into the trailer so the kingpin and 5th wheel funnel align; the hitch will latch automatically when fully backed in and the indicator will show 100% green. 3. Perform a pull test with trailer wheels blocked, landing gears on ground, and trailer brake on—try to pull the trailer forward slowly; if properly hitched, proceed; if not, repeat steps 1-3. 4. Insert the bail pin into the lock hole or use a lock for added security. 5. Connect electrical and breakaway switch cables. 6. Raise the tailgate if necessary and remove chocks/blocks and lift trailer jacks. Note: If the jaw does not close under compression, pull the truck slowly forward to remove load on the jaw.
1. Ensure blocks/chocks are firmly against trailer wheels and trailer jacks are lowered and firmly on the ground. 2. Lower the tailgate as necessary and disconnect electrical and breakaway switch cables. 3. Ensure no persons or vehicles are in the vicinity. 4. Remove the bail pin from the locking hole and move the handle to the unhitching position by pulling out and rotating towards the cab. 5. Drive the truck slowly away from the trailer. Note: If there is tension between truck and trailer, the truck or trailer may shift when the handle is pulled; the handle will 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, unbolting the legs from the center section, rotating the center section, and reinstalling. The logo/rating cover must be removed and reinstalled on the opposite side. Head springs must be flipped from right to left and tightened to 7-8 ft-lbs. Ensure the kingpin location is ahead of the truck rear axle and has proper truck cab clearance. Detailed steps are provided on page 7.
Grease should be applied every use to the skid plate surface and to the 5th wheel jaw and/or kingpin on the trailer. Annually or as required, apply grease via the grease fitting on top of the unit (using a grease needle), apply spray white lithium grease to internal mechanisms by rotating the handle, and grease the pivot assemblies with a grease gun with needle adapter. The head comes pre-greased from the factory.
The pivot assembly resistance is preset at the factory. If the head pivots and makes noise when the trailer is not attached, adjust the resistance by tightening the pivot bolt 1/2 turn at a time, up to a maximum of 2 full turns. Access the pivot bolt and nut through the open end wrench access shown in figure 9B on page 3.
Yes. The pivot assembly can be rebuilt if required. Instructions to rebuild the pivot assembly are included in the rebuild kit.
The maximum pin weight is 6,750 lbs. Do not exceed the towing vehicle manufacturer's recommended towing capacity.
When hitching: ensure blocks/chocks are firmly against trailer wheels, trailer landing gears are firmly on the ground, and trailer brake is on. Make sure no one is between the truck and trailer during the pull test. When unhitching: ensure blocks/chocks are firmly against trailer wheels, trailer jacks are lowered and firmly on the ground, and no persons or vehicles are in the vicinity. Be aware that the truck or trailer may shift when the handle is pulled during unhitching.
The trailer pin box must have a kingpin of 3/4" or greater in height, a width of 1-1/2" or greater, and a kingpin diameter of 5/16" or less. These dimensions are shown in figure 16 on page 6.
No. Mounting legs are sold separately. You must purchase M5 mounting legs compatible with your vehicle and follow the leg assembly instructions provided with them.
Fastener kit 30892F is required for installation of the M5 Head & Center Section.
The manual does not specify drilling requirements for the head and center section installation. Drilling requirements depend on the mounting legs, which have separate installation instructions.
Yes. Apply grease to the skid plate surface and to the 5th wheel jaw and/or kingpin on the trailer before each use. The head comes pre-greased from the factory, but the pivot area should be greased during assembly per figure 9.
When reinstalling the head springs after rotating the center section, tighten them to 7-8 ft-lbs using a 7/16" socket. The springs should be pointing up towards the truck cab and will flex freely when properly installed.
If the jaw does not close because it is under compression, pull the truck slowly forward to remove the load on the jaw. The handle will then fully latch.
If the jaw does not close when fully backed into the trailer, the jaw may be under compression. Pull the truck slowly forward to remove the load on the jaw. The handle will then fully latch and the indicator will show 100% green. If the trailer still does not couple, repeat the hitching procedure from step 1.
The pivot assembly resistance is preset at the factory but can be adjusted. Tighten the pivot bolt 1/2 turn at a time to increase resistance and reduce noise. Do not exceed 2 full turns of tightening. Access the pivot bolt and nut through the open end wrench access shown in figure 9B.
If the trailer separates from the hitch during the pull test and the truck moves forward, the trailer is not properly hitched. Repeat the hitching procedure from step 1. Ensure the pin box is at the correct height (bottom aligned with top of skid plate ramp +/- 1 inch), the head is in Ready-to-Receive position, and the truck is backed completely into the trailer kingpin until the indicator shows 100% green.
Matt
The staff was able to quickly assist me with locating the correct product I needed. Shipping was really fast. Item arrived in 2 days. Will be using TowUniverse again!!
May 22, 2023
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