Fontaine Fifth Wheel Application


The Fontaine
Fifth Wheel Manual Wedge Slide Bracket (MWS)

In some applications, you need the flexibility to reposition your fifth wheel to balance the load on the axles. Fontaine's Manual Wedge Slide Bracket Fifth Wheel gives you the flexibility you need.

Our sliding fifth wheel uses a strong mechanical linkage with tapered slide locking wedges to provide a strong and reliable operation. It's built with either the NO-SLACK® II standard-duty top plate or the 5092 heavy-duty top plate formed with a low-alloy, high-tensile steel. Both incorporate a heavy-duty steel substructure for increased integrity.

The surface of our top plate is designed for uniform lubrication. The one-piece cast saddle bearings are built with large grease grooves for uniform grease flow and coverage.

Safety, like strength, is engineered into the sliding fifth wheel. The fifth wheel locking mechanism incorporates an integral secondary safety lock to prevent false coupling and premature trailer disengagement.

So, if the job demands frequent fifth wheel repositioning, the answer is the Fontaine Manual Wedge Slide Bracket Fifth Wheel.

Rating:Standard Duty50,000 pound vertical load
150,000 pound drawbar pull
Heavy Duty55,000 pound vertical load
150,000 pound drawbar pull
Application:Tractors requiring frequent 5th wheel positioning for optimal load distribution.
Mounting:A standard NO-SLACK¬ II or heavy-duty 5092 top plate is mounted on standard bracket in a slide rail bolted to the truck frame with outboard angles.
Construction:A high-strength low-alloy formed steel top plate with a heavy-duty steel substructure. Fontaine's slide mounting bracket is designed with the largest bearing area in the industry. Tapered locking wedges are heat treated for additional strength.
Warranty:Fontaine's standard five-year warranty.

Manual Wedge Slide Bracket Fifth Wheel (MWS)

Model Number Description Weight (lbs)
SL6MWS6750126-3/4" Mounting Height. 12" Slide Travel479
SL6MWS6750166-3/4" Mounting Height. 16" Slide Travel487
SL6MWS6750206-3/4" Mounting Height. 20" Slide Travel495
SL6MWS6750246-3/4" Mounting Height. 24" Slide Travel502
SL6MWS6750366-3/4" Mounting Height. 36" Slide Travel525
SL6MWS6750486-3/4" Mounting Height. 48" Slide Travel557
SL6MWS7750127-3/4" Mounting Height. 12" Slide Travel485
SL6MWS7750167-3/4" Mounting Height. 16" Slide Travel493
SL6MWS7750207-3/4" Mounting Height. 20" Slide Travel501
SL6MWS7750247-3/4" Mounting Height. 24" Slide Travel508
SL6MWS7750367-3/4" Mounting Height. 36" Slide Travel531
SL6MWS7750487-3/4" Mounting Height. 48" Slide Travel563
SL6MWS8750128-3/4" Mounting Height. 12" Slide Travel491
SL6MWS8750168-3/4" Mounting Height. 16" Slide Travel499
SL6MWS8750208-3/4" Mounting Height. 20" Slide Travel507
SL6MWS8750248-3/4" Mounting Height. 24" Slide Travel514
SL6MWS8750368-3/4" Mounting Height. 36" Slide Travel537
SL6MWS8750488-3/4" Mounting Height. 48" Slide Travel569
SL6MWS9750129-3/4" Mounting Height. 12" Slide Travel497
SL6MWS9750169-3/4" Mounting Height. 16" Slide Travel505
SL6MWS9750209-3/4" Mounting Height. 20" Slide Travel512
SL6MWS9750249-3/4" Mounting Height. 24" Slide Travel520
SL6MWS9750369-3/4" Mounting Height. 36" Slide Travel543
SL6MWS9750489-3/4" Mounting Height. 48" Slide Travel575
SL6MWS107501210-3/4" Mounting Height. 12" Slide Travel517
SL6MWS107501610-3/4" Mounting Height. 16" Slide Travel525
SL6MWS107502010-3/4" Mounting Height. 20" Slide Travel533
SL6MWS107502410-3/4" Mounting Height. 24" Slide Travel540
SL6MWS107503610-3/4" Mounting Height. 36" Slide Travel563
SL6MWS107504810-3/4" Mounting Height. 48" Slide Travel595

The above part numbers are left side opening. To order a right side opening Top Plate, change the part number from "SL" to "SR" (Example: SR6MWS875048). To order an Air Actuated Top Plate, add 6 lbs. to the weight and change the part number from "SL" to "AA" (Example: AA6MWS875048). Order dash installation kit separately. To order a heavy-duty Top Plate, add 56 lbs. to the weight and "H" to the part number (Example: SLHMWS875048).

Installation Parts: Mounting Angles, Air Slide Installation Kit, and Bolt Kit.

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This information has been provided to us by the supplier.