| Product Line | Chassis & Suspension |
| Category Name | Fifth Wheels & Parts |
| Part Type | Fifth-Wheel Assembly |
| Alternate Part Name | Fifth-Wheel Assembly, Fifth Wheel |
| Model | FW78B3 |
| OEM Part Number | W78B3 |
| Application Type | Semi-Trucks, Heavy Duty Trucks, Tractors |
| Kingpin Diameter Compatibility | 2.00 in. |
| Mounting Interface | Bracket Assembly |
| Mounting Type | Stationary |
| Series | FW78B |
| Material | High Strength Cast Steel |
| Mounting Height | 7-9/32 in. |
| Overall Length | 30-15/16 in. |
| Overall Width | 36-1/16 in. |
| Drawbar Pull Rating | 152 kN |
| Lock Jaw Type | Single Pivoting Jaw |
| Lubrication Type | Manual Grease Lubrication |
| Maximum Gross Trailer Weight (GTW) | 65.000 kg |
| Maximum Oscillation Angle | 18 deg. |
| Maximum Vertical Load Capacity | 44.800 lb. |
| Release Type | Left-Hand Release |
| Net Weight | 147 kg |
| Cross References | FW78B3 |
| Intended Application | - Compatible with most heavy-duty tractors and semi-trailers equipped with a standard SAE 2-inch (50.8 mm) king pin.
- Always compare with your OEM part number prior to purchase to confirm full compatibility.
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