A white dump truck with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump unloads dirt onto a grassy field, trees in the background.
A backhoe loads dirt into a truck fitted with a PIERCE Light Duty Flat Bed Dump Kit beside a gravestone in a sunny cemetery.
A blue hydraulic lift, powered by a 12V hydraulic pump, raises the bed of a dump truck with the PIERCE Light Duty Flat Bed Dump Kit, exposing the chassis and underside.
PIERCE Flat Bed Dump Kit 5T Customer Testimonial
A white dump truck with a raised black bed, equipped with the PIERCE Light Duty Flat Bed Dump Kit and 12V hydraulic pump, is parked on concrete beneath a cloudy sky.
A white truck equipped with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump is tilted up to unload by trees and a gravel lot.
A white flatbed pickup truck with a PIERCE Light Duty Flat Bed Dump Kit is parked on a cemetery road, surrounded by headstones and trees.
A white pickup truck with a raised black bed and PIERCE Light Duty Flat Bed Dump Kit, powered by a 12 Volt hydraulic pump, is parked on pavement under partly cloudy skies.
The PIERCE Light Duty Flat Bed Dump Kit features a hydraulic lift mechanism with a 12V pump, mounted on a vehicle chassis with detailed metal framework and cylinders—perfect for flatbed dumping applications.
White dump truck with elevated black bed and PIERCE Medium Duty Flat Bed Dump Kit parked on pavement under cloudy sky; hydraulic pump visible, car driving in background.
    A white dump truck with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump unloads dirt onto a grassy field, trees in the background.
    A backhoe loads dirt into a truck fitted with a PIERCE Light Duty Flat Bed Dump Kit beside a gravestone in a sunny cemetery.
    A blue hydraulic lift, powered by a 12V hydraulic pump, raises the bed of a dump truck with the PIERCE Light Duty Flat Bed Dump Kit, exposing the chassis and underside.
    PIERCE Flat Bed Dump Kit 5T Customer Testimonial
    A white dump truck with a raised black bed, equipped with the PIERCE Light Duty Flat Bed Dump Kit and 12V hydraulic pump, is parked on concrete beneath a cloudy sky.
    A white truck equipped with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump is tilted up to unload by trees and a gravel lot.
    A white flatbed pickup truck with a PIERCE Light Duty Flat Bed Dump Kit is parked on a cemetery road, surrounded by headstones and trees.
    A white pickup truck with a raised black bed and PIERCE Light Duty Flat Bed Dump Kit, powered by a 12 Volt hydraulic pump, is parked on pavement under partly cloudy skies.
    The PIERCE Light Duty Flat Bed Dump Kit features a hydraulic lift mechanism with a 12V pump, mounted on a vehicle chassis with detailed metal framework and cylinders—perfect for flatbed dumping applications.
    White dump truck with elevated black bed and PIERCE Medium Duty Flat Bed Dump Kit parked on pavement under cloudy sky; hydraulic pump visible, car driving in background.
A white dump truck with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump unloads dirt onto a grassy field, trees in the background.
A backhoe loads dirt into a truck fitted with a PIERCE Light Duty Flat Bed Dump Kit beside a gravestone in a sunny cemetery.
A blue hydraulic lift, powered by a 12V hydraulic pump, raises the bed of a dump truck with the PIERCE Light Duty Flat Bed Dump Kit, exposing the chassis and underside.
PIERCE Flat Bed Dump Kit 5T Customer Testimonial
A white dump truck with a raised black bed, equipped with the PIERCE Light Duty Flat Bed Dump Kit and 12V hydraulic pump, is parked on concrete beneath a cloudy sky.
A white truck equipped with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump is tilted up to unload by trees and a gravel lot.
A white flatbed pickup truck with a PIERCE Light Duty Flat Bed Dump Kit is parked on a cemetery road, surrounded by headstones and trees.
A white pickup truck with a raised black bed and PIERCE Light Duty Flat Bed Dump Kit, powered by a 12 Volt hydraulic pump, is parked on pavement under partly cloudy skies.
The PIERCE Light Duty Flat Bed Dump Kit features a hydraulic lift mechanism with a 12V pump, mounted on a vehicle chassis with detailed metal framework and cylinders—perfect for flatbed dumping applications.
White dump truck with elevated black bed and PIERCE Medium Duty Flat Bed Dump Kit parked on pavement under cloudy sky; hydraulic pump visible, car driving in background.
A white dump truck with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump unloads dirt onto a grassy field, trees in the background.
A backhoe loads dirt into a truck fitted with a PIERCE Light Duty Flat Bed Dump Kit beside a gravestone in a sunny cemetery.
A blue hydraulic lift, powered by a 12V hydraulic pump, raises the bed of a dump truck with the PIERCE Light Duty Flat Bed Dump Kit, exposing the chassis and underside.
PIERCE Flat Bed Dump Kit 5T Customer Testimonial
A white dump truck with a raised black bed, equipped with the PIERCE Light Duty Flat Bed Dump Kit and 12V hydraulic pump, is parked on concrete beneath a cloudy sky.
A white truck equipped with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump is tilted up to unload by trees and a gravel lot.
A white flatbed pickup truck with a PIERCE Light Duty Flat Bed Dump Kit is parked on a cemetery road, surrounded by headstones and trees.
A white pickup truck with a raised black bed and PIERCE Light Duty Flat Bed Dump Kit, powered by a 12 Volt hydraulic pump, is parked on pavement under partly cloudy skies.
The PIERCE Light Duty Flat Bed Dump Kit features a hydraulic lift mechanism with a 12V pump, mounted on a vehicle chassis with detailed metal framework and cylinders—perfect for flatbed dumping applications.
White dump truck with elevated black bed and PIERCE Medium Duty Flat Bed Dump Kit parked on pavement under cloudy sky; hydraulic pump visible, car driving in background.
    A white dump truck with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump unloads dirt onto a grassy field, trees in the background.
    A backhoe loads dirt into a truck fitted with a PIERCE Light Duty Flat Bed Dump Kit beside a gravestone in a sunny cemetery.
    A blue hydraulic lift, powered by a 12V hydraulic pump, raises the bed of a dump truck with the PIERCE Light Duty Flat Bed Dump Kit, exposing the chassis and underside.
    PIERCE Flat Bed Dump Kit 5T Customer Testimonial
    A white dump truck with a raised black bed, equipped with the PIERCE Light Duty Flat Bed Dump Kit and 12V hydraulic pump, is parked on concrete beneath a cloudy sky.
    A white truck equipped with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump is tilted up to unload by trees and a gravel lot.
    A white flatbed pickup truck with a PIERCE Light Duty Flat Bed Dump Kit is parked on a cemetery road, surrounded by headstones and trees.
    A white pickup truck with a raised black bed and PIERCE Light Duty Flat Bed Dump Kit, powered by a 12 Volt hydraulic pump, is parked on pavement under partly cloudy skies.
    The PIERCE Light Duty Flat Bed Dump Kit features a hydraulic lift mechanism with a 12V pump, mounted on a vehicle chassis with detailed metal framework and cylinders—perfect for flatbed dumping applications.
    White dump truck with elevated black bed and PIERCE Medium Duty Flat Bed Dump Kit parked on pavement under cloudy sky; hydraulic pump visible, car driving in background.
A white dump truck with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump unloads dirt onto a grassy field, trees in the background.
A backhoe loads dirt into a truck fitted with a PIERCE Light Duty Flat Bed Dump Kit beside a gravestone in a sunny cemetery.
A blue hydraulic lift, powered by a 12V hydraulic pump, raises the bed of a dump truck with the PIERCE Light Duty Flat Bed Dump Kit, exposing the chassis and underside.
PIERCE Flat Bed Dump Kit 5T Customer Testimonial
A white dump truck with a raised black bed, equipped with the PIERCE Light Duty Flat Bed Dump Kit and 12V hydraulic pump, is parked on concrete beneath a cloudy sky.
A white truck equipped with a PIERCE Light Duty Flat Bed Dump Kit and a 12 Volt hydraulic pump is tilted up to unload by trees and a gravel lot.
A white flatbed pickup truck with a PIERCE Light Duty Flat Bed Dump Kit is parked on a cemetery road, surrounded by headstones and trees.
A white pickup truck with a raised black bed and PIERCE Light Duty Flat Bed Dump Kit, powered by a 12 Volt hydraulic pump, is parked on pavement under partly cloudy skies.
The PIERCE Light Duty Flat Bed Dump Kit features a hydraulic lift mechanism with a 12V pump, mounted on a vehicle chassis with detailed metal framework and cylinders—perfect for flatbed dumping applications.
White dump truck with elevated black bed and PIERCE Medium Duty Flat Bed Dump Kit parked on pavement under cloudy sky; hydraulic pump visible, car driving in background.

Medium Duty Flat Bed Dump Kit

DKMKPD
$2,776.00
$2,776.00
$0.00
Shipping calculated at checkout.
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In Stock
Flat Bed Kit Options:
Light Duty
Medium Duty
Heavy Duty
Lifting Capacity
Which dump kit: light, medium, or heavy-duty? The choice is based on your bed length and your preferred capacity to lift, haul and dump. The fit chart is below.
Universal
These PIERCE dump bed kits are designed to be a universal fit to both trucks and trailers, not specific to any make, model, or year.

Medium Duty Flat Bed Dump Kit Information

Upgrade your work truck or trailer with the PIERCE Medium Duty Flat Bed Dump Kit, built for hardworking folks across the US who need reliable, efficient gear. Made for after-market flatbeds or dump bodies, this universal kit handles up to 15,000 lbs., perfect for jobs like landscaping, construction, or cemetery upkeep.

Strong Performance: With a 12 Volt hydraulic pump that comes standard, this kit lifts your truck bed to a 45º angle in 30-90 seconds, making quick work of unloading dirt, gravel, or mulch. Whether you’re dumping in a field or working in a quiet cemetery, it gets the job done fast while saving your energy. If the Medium Duty is more than you need, checkout the Light Duty Kit.  If more power is needed, take a look at our Heavy Duty Kit.

Wide Fit: Works with bed lengths from 8’ to 12’, this kit is great for turning trailers into dump trailers or improving flatbeds. Its tough scissor assembly delivers steady power for heavy tasks.

Expert Installation Needed: This kit requires expert-level skills, including welding, mechanical, and electrical know-how. It comes with a pre-assembled scissor assembly, hydraulic pump, and almost all necessary hardware, plus our manual. Strengthening your truck bed is a good idea, and a pro’s help might be useful. Call our team at 940-538-5643 for advice.

Made to Last: Since 1976, PIERCE, a family-run North Texas business, has crafted equipment that keeps up with your grind. Customers love the kit’s solid build and simple operation, saying it makes tough jobs easier with just a button push.

Why Choose PIERCE? Outfit your rig with the Medium Duty Dump Kit to save time and handle hard jobs with ease. 

Note: Don’t go over your truck or trailer’s max load rating. Tools and some hardware not included. Expert installation strongly recommended.

What is Included

  • Scissor Assembly (Pre-Assembled)
    Scissor Top
    1
    Scissor s
    2
    Crossmember
    1
    Shaft A 9.25 in.
    1
    Shaft B 15 in.
    1
    Shaft C 21.5 in.
    1
    Hydraulic Cylinder
    1
    7/32 in. x 2 in. Roll Pin
    6
  • Chassis/Bed Parts
    Driver Side Frame Hinge
    1
    Passenger Side Frame Hinge
    1
    Frame L Bracket
    2
    Guides
    2
    Shaft D 9.25 in.
    2
    Pump Bracket
    1
    Scissor Support Bar
    1
    Driver Side Sill Hinge
    1
    Passenger Side Sill Hinge
    1
    Sill Supports
    2
  • Hardware
    3/8 in. - 16 x 1.25 in. G5 Hex Head Bolt
    2
    1/2 in. - 16 x 3 in. G8 Hex Head Bolt
    8
    1/2 in. Flat Washer
    10
    1/2 in. - 13 Locknut
    12
    3/8 in. Lock Washer
    2
    7/32 in. x 2 in. Roll Pin
    4
    1/2 in. - 13 x 1.5 in. G8 Hex Head Bolt
    2
    1/2 in. - 13 x 1.25 in. G8 Hex Head Bolt
    2
    1/2 in. - 13 x 8 in. G8 Hex Head Bolt
    2
    3/8 in. x 1 in. G8 Hex Head Bolt
    2
    3/8 in. Locknut
    2
    3/8 in. Flat Washer
    2
    3/4 in. - 10 x 2.5 in. G8 Hex Head Bolt
    1
    3/4 in. G8 Locknut
    1
    3/4 in. Flat Washer
    2
    Safety Prop Leg
    1
    Safety Prop Cup
    1
    8 in. Black UV Zip Ties
    1
    Instruction Manual
    1
  • Electrical & Hydraulic Parts
    200 Amp Breaker
    1
    20 ft. #4 Welding Cable - Black
    1
    20 ft. #4 Welding Cable - Red
    1
    5/16 in. Battery Eye
    6
    2 Button Universal Remote with 20 ft. Cord
    1
    3/4 in. x 1/4 in. 90º Swivel O-Ring Fitting
    1
    3/8 in. Male x 1/4 in. Female 90º Swivel Fitting
    1
    #8 Straight O-Ring Male to 1/4 in. Female Pipe Fitting
    1
    5 ft. Hydraulic Hose
    1
    7 ft. Hydraulic Hose
    1
    Bucher 12V Power Up/Power Down Hydraulic Pump
    1

Specifications

CYLINDER MEASUREMENTS
5" x 14" x 2"
DUMPING TIME
30-90 seconds
HOSE CONNECTIONS
#6 SAE
MAX CAPACITY (LBS.)
15000
MAX OIL FLOW (GPM)
1.5
MAXIMUM ANGLE (º)
45º
OPERATING TEMPERATURE RANGE
-20ºF to 130ºF (-30ºC to 55ºC)
OPERATING VOLTAGE
12 Volts DC
OPERATIONAL PRESSURE (PSI)
3250
PUMP DIRECTIONS
2-Way (Power Up / Power Down)
RECOMMENDED FLUID
ATF (Automatic Transmission Fluid)
RESERVOIR CAPACITY
2.5 Gallons
RESERVOIR MATERIAL
High Density Polyethylene

DKMKPD Capacity vs Bed Overhang

Overhang 8' Bed 10' Bed 12' Bed
None 7 T 6.5 T 6 T
12" 7.5 T 7 T 6.5 T
24" 7.5T 7T
36" 7.5T

Resources

Manual
DK - Flatbed Dump Kit Manual
Spec Sheet
DKMKPD - Spec Sheet
Guide
Pump Troubleshooting Guide

Finding a Professional
For your Dump Truck Kit Installation

If you choose not to do the hydraulic dump kit installation yourself, we have found body shops and machine/welder shops typically have the expertise required. Basically, any shop installing flat beds has the expertise.

The key to finding a reputable shop is research. While the following criteria does not guarantee a positive experience, it can help identify shops with experience and a history of good work.

Step 1

Research

  • Speak to colleagues and friends for recommendations.

  • The search engine is your next best option when looking for a local welder or fabricator with experience.

  • Search keywords along with your location to find one near you.

STEP 2

Credibility 

  • Check standing with organizations like the BBB.

  • Check for industry certifications like the ASE or ASA.

  • Check that the shop carries both Garage Liability and Garage Keepers Insurance.

welding

Customer Reviews

Based on 10 reviews
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Tim Clossey
Happy customer so far

The lift kit arrived well packaged and undamaged. I am not done yet but so far the installation process has been very straightforward. The build quality looks to be top notch. I look forward to completing the installation on my flatbed and to the new capability that the dump kit will provide.

Thank you for the feedback on the Falt bed dump kit. Glad to hear the lift kit arrived safely and the installation process has been smooth for you. Our team takes pride in producing high-quality products and we're excited for you to experience the added capability of the dump kit on your flatbed. If you need any further assistance or any help during installation, please reach out to us. We're pulling for you. 800-658-6301

A
Adam Byrd
15,000 dump kit

Excellent quality and easy to install. It does take some welding and problem solving to install but this is a universal kit so it was expected. I am very satisfied and the kit works flawlessly. Also was notified before delivery so if I didn’t have a way to unload it they could send a truck with a lift gate.

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M
Mikki Huntsman
Dump kit

The kit showed up within a week and works great. Very adaptable and easy to install

C
Carlos

With the right tools was not too difficult to install on my f250. Will make life alot easier now with a push of a button. Very pleased with my purchase

l
larry bost

I have installed in the past, still great item, web ordered this time,easy to use site, fast shipping, easy well explained install,Thanks

12

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