Dexter PH520 10 Ton Hydraulic Scissor Power Hoist Kit for 12’–16’ Dump Beds

10-Ton Hydraulic Lifting Power for 12′-16′ Dump Beds

The genuine Dexter PH520 Power Hoist is a heavy-duty hydraulic scissor hoist engineered for 12’–16′ dump beds. Rated at 10 tons or 20,000 lb, it provides stable scissor lifting geometry, strong lifting reserve, and dependable operation for builders, contractors, landscapers, agricultural users, repair shops, and equipment owners.

Use the PH520 for new dump trailer builds, replacement hoist systems, gooseneck dump trailers, truck dump bodies, and custom heavy-duty dumping applications. Select the hoist assembly by itself or a complete hydraulic package with genuine KTI power and optional Dexter Power Jack convenience.

Choose Your PH520 Kit Configuration

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Hoist Only: PH520 hoist assembly and mounting brackets for builders who already have a compatible hydraulic system.

Standard: Complete dump hoist system with matched KTI hydraulics, controls, wiring, hinges, and safety components.

Pro: Standard Kit plus the Single Dexter Power Jack Add-On Kit.

Pro Max: Standard Kit plus the Dual Dexter Power Jack Add-On Kit.

PH520 Specifications

Understanding Hoist Capacity vs. Trailer GVWR

The PH520 capacity chart below shows how dump-body length, rear overhang, and dump angle affect published hoist capacity. Actual lifting performance also depends on bed weight, hoist mounting position, hinge geometry, hydraulic pressure, and load placement. A load concentrated toward the front of the dump bed requires greater lifting force and may reduce lifting performance compared with an evenly distributed load. The published chart assumes a water-level, non-diminishing load.

PH520 Capacity Reference Table

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PH520 published hoist capacity reference — capacity shown in tons

A: Body Length	B: Rear Overhang	45° Dump Angle	50° Dump Angle
12 ft	12 in	10.3 tons	9.3 tons
12 ft	18 in	11.4 tons	10.4 tons
12 ft	24 in	12.9 tons	11.7 tons
14 ft	12 in	8.6 tons	7.8 tons
14 ft	18 in	9.3 tons	8.5 tons
14 ft	24 in	10.3 tons	9.3 tons
16 ft	12 in	7.3 tons	6.7 tons
16 ft	18 in	7.9 tons	7.2 tons
16 ft	24 in	8.6 tons	7.8 tons

Published Capacity Assumptions:

1. Water-level, non-diminishing load.
2. Vertical height between the rear hinge pivot and floor is at least 3 inches.
3. Hydraulic relief pressure is set at 3,200 PSI.

Because applications vary, these capacities are provided as a general guide only.

Hoist Capacity Does Not Determine Trailer GVWR: Use the PH520 chart above to evaluate hoist performance for your bed length, rear overhang, and desired dump angle. The chart does not establish or increase the trailer’s GVWR or allowable payload. Those ratings depend on the complete trailer design and all rated components, including the frame, axles, suspension, brakes, wheels, tires, coupler, and hitch.

Verify Fitment: Review the PH520 dimensional drawing in the product gallery or resources section before ordering to confirm mounting space and installation geometry.

If you are unsure whether the PH520 is appropriate for your build, contact Johnson Trailer Parts before ordering.

KTI Three-Button Hydraulic Pump System

The Standard, Pro, and Pro Max configurations include a KTI 3-quart 12V DC hydraulic power unit with a 15′ wired three-button remote. The operator can raise the dump bed using power-up, lower it hydraulically using power-down, or select gravity-down operation when appropriate for the application.

Gravity-down allows the bed to lower without running the hydraulic motor, helping reduce electrical demand and conserve trailer battery power. Powered lowering provides controlled hydraulic force in the lowering direction when the application calls for it.

Dexter Power Jack Add-On Systems — Pro & Pro Max

The Pro and Pro Max packages add genuine Dexter Power Jack hydraulic trailer jacks powered by the kit’s KTI hydraulic pump. An inline selector valve routes hydraulic flow to either the PH520 dump hoist or the jack system, providing powered tongue lifting without the cost, weight, wiring, battery cables, and maintenance requirements of a second pump.

• Pro Package: Includes the Single Dexter Power Jack Add-On Kit with an inline selector valve for push-button tongue lifting and leveling.
• Pro Max Package: Includes the Dual Dexter Power Jack Add-On Kit with an inline selector valve and hydraulic flow divider for synchronized operation and increased front lifting stability.

Common PH520 Applications

• New dump trailer construction
• Replacement of worn or undersized hoist systems
• 12′, 14′, and 16′ dump trailer beds
• Bumper-pull and gooseneck dump trailers
• Truck dump beds and custom dump bodies
• Construction and demolition trailers
• Landscaping and property-maintenance trailers
• Farm and agricultural trailers
• Heavy-duty commercial dump trailer upgrades

Free Freight Shipping Information

Free freight shipping is available to qualifying addresses within the lower 48 states.

Limited-access locations—including apartments, islands, farms, construction sites, and similar locations—and liftgate service may require additional charges. The delivery address must be accessible to a full-size freight truck, with personnel and equipment available to unload the shipment.

All freight deliveries require a scheduled delivery appointment. The freight carrier will contact the recipient before delivery, so please provide a current and monitored phone number with your order.

Genuine Dexter Quality & Support

Previously sold under the Premium Supply brand, the PH520 is now offered under the trusted Dexter brand as part of the Dexter Power Hoist line. The PH520 hoist carries a 36-month standard hoist warranty. Warranty coverage for pumps, controls, jacks, and other components is governed by the applicable component manufacturer’s terms.

Johnson Trailer Parts has the product knowledge to help builders and repair shops select the correct hoist configuration, verify application details, and understand the available hydraulic and Power Jack options.

Battery Maintenance Tip

PH520 Manuals, Charts & Selection Guides

• Download the PH520 Installation Manual
• Download Power Hoist Capacity & Load Charts
• Download Power Hoist Dimensions
• Download KTI Hydraulic Pump Instructions
• Compare the PH516 and PH520 Dump Trailer Hoists
• Read the Scissor Hoist Selection Guide

Frequently Asked Questions

Watch a PH520 Dump Trailer Build

See the Dexter PH520 hydraulic scissor hoist in action on a real dump trailer built by Johnson Trailer Parts.

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