Fontaine Fifth Wheel Application 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.
The Fontaine
Fifth Wheel Manual Wedge Slide Bracket (MWS)![]()
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 Duty 50,000 pound vertical load
150,000 pound drawbar pullHeavy Duty 55,000 pound vertical load
150,000 pound drawbar pullApplication: 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)
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).
Model Number Description Weight (lbs) SL6MWS675012 6-3/4" Mounting Height. 12" Slide Travel 479
SL6MWS675016 6-3/4" Mounting Height. 16" Slide Travel 487
SL6MWS675020 6-3/4" Mounting Height. 20" Slide Travel 495
SL6MWS675024 6-3/4" Mounting Height. 24" Slide Travel 502
SL6MWS675036 6-3/4" Mounting Height. 36" Slide Travel 525
SL6MWS675048 6-3/4" Mounting Height. 48" Slide Travel 557
SL6MWS775012 7-3/4" Mounting Height. 12" Slide Travel 485
SL6MWS775016 7-3/4" Mounting Height. 16" Slide Travel 493
SL6MWS775020 7-3/4" Mounting Height. 20" Slide Travel 501
SL6MWS775024 7-3/4" Mounting Height. 24" Slide Travel 508
SL6MWS775036 7-3/4" Mounting Height. 36" Slide Travel 531
SL6MWS775048 7-3/4" Mounting Height. 48" Slide Travel 563
SL6MWS875012 8-3/4" Mounting Height. 12" Slide Travel 491
SL6MWS875016 8-3/4" Mounting Height. 16" Slide Travel 499
SL6MWS875020 8-3/4" Mounting Height. 20" Slide Travel 507
SL6MWS875024 8-3/4" Mounting Height. 24" Slide Travel 514
SL6MWS875036 8-3/4" Mounting Height. 36" Slide Travel 537
SL6MWS875048 8-3/4" Mounting Height. 48" Slide Travel 569
SL6MWS975012 9-3/4" Mounting Height. 12" Slide Travel 497
SL6MWS975016 9-3/4" Mounting Height. 16" Slide Travel 505
SL6MWS975020 9-3/4" Mounting Height. 20" Slide Travel 512
SL6MWS975024 9-3/4" Mounting Height. 24" Slide Travel 520
SL6MWS975036 9-3/4" Mounting Height. 36" Slide Travel 543
SL6MWS975048 9-3/4" Mounting Height. 48" Slide Travel 575
SL6MWS1075012 10-3/4" Mounting Height. 12" Slide Travel 517
SL6MWS1075016 10-3/4" Mounting Height. 16" Slide Travel 525
SL6MWS1075020 10-3/4" Mounting Height. 20" Slide Travel 533
SL6MWS1075024 10-3/4" Mounting Height. 24" Slide Travel 540
SL6MWS1075036 10-3/4" Mounting Height. 36" Slide Travel 563
SL6MWS1075048 10-3/4" Mounting Height. 48" Slide Travel 595
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.