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Bigfoot Self-Contained Hydraulic Tongue Jack - 16-1/2" Lift - 8,000 lbs - Bolt On
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Bigfoot

Bigfoot Self-Contained Hydraulic Tongue Jack - 16-1/2" Lift - 8,000 lbs - Bolt On

Part Number: BF34FR
$808.00
Trailer Jack
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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Upgrade a bumper-pull trailer from manual cranking with an 8K hydraulic tongue jack. The dedicated 12V pump, local toggle control, standard tongue-jack mounting design, and 16-1/2" of lift give you a straightforward powered setup. Great Prices for the best trailer jack from Bigfoot. Bigfoot Self-Contained Hydraulic Tongue Jack - 16-1/2" Lift - 8,000 lbs - Bolt On part number BF34FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Bigfoot Trailer Jack - BF34FR

  • 5th Wheel Trailer
  • Dump Trailer
  • Enclosed Trailer
  • Gooseneck Trailer
  • 10001 lbs or More
  • Hydraulic Jack
  • Bolt-On
  • A-Frame Jacks
  • With Rectangle Foot
  • Bigfoot

Upgrade a bumper-pull trailer from manual cranking with an 8K hydraulic tongue jack. The dedicated 12V pump, local toggle control, standard tongue-jack mounting design, and 16-1/2" of lift give you a straightforward powered setup.


Highlights

  • Hydraulic Power for Bumper-Pull Trailers: Raise and lower the tongue without fighting a manual jack crank.
  • 8,000-lb Capacity and 16-1/2" Lift: Handles horse, livestock, cargo, equipment, and other work trailers.
  • Designed for Standard Tongue-Jack Openings: Bolt-on layout simplifies upgrading many common bumper-pull trailers.
  • Self-Contained Hydraulic System: Dedicated pump and reservoir power the jack without another trailer hydraulic circuit.
  • Installation Components Included: Comes with hydraulic hoses, fittings, power cable, mounting plate, and hardware.
  • Plan for Power Loss: This configuration does not include a manual override, so operation relies on the 12V system.

Made in USA

Features to Know About

Put the Hand Crank Away

Horse, livestock, cargo, and equipment trailers can put enough weight on the tongue to make a manual jack a chore every time you hitch or unhitch. This Bigfoot jack gives you 8,000 lbs of hydraulic lifting capacity and 16-1/2" of lift, letting the powered system handle the work instead.


The jack measures 8" retracted and 24-1/2" extended, giving you a compact starting height with enough movement to raise or lower the tongue for hitching. Its 1-1/2" hydraulic shaft is built around the demands of heavier bumper-pull trailers.

Dedicated Hydraulic Power with Simple Local Control

This is a self-contained setup with its own 12V hydraulic pump and reservoir mounted with the jack. A rubber-booted toggle switch at the pump assembly controls extension and retraction, so there is no separate hydraulic system or remote control to add.


The kit includes hydraulic hoses and fittings, battery cable, mounting components, and the hardware shown with the system. You supply a 12V battery and 2 quarts of Dexron III ATF. The hydraulic system calls for at least 4-gauge battery cable.


This configuration does not include a built-in manual override. If the trailer loses 12V power, there is no separate manual backup included with the system, so keeping the battery and electrical connection in good condition matters.

Designed Around a Standard Bumper-Pull Tongue-Jack Opening

The round jack is designed for a standard bumper-pull trailer tongue-jack opening, making it a practical hydraulic replacement for many A-frame tongue jacks without requiring a welded side-mount setup.


The mounting plate and installation hardware are included, but standard opening does not guarantee that every trailer uses the exact same bolt pattern. Compare your existing opening and mounting holes before installation so you know what will line up and where additional drilling may be needed.

Specs

Capacity and Lift:

  • Lift capacity: 8,000 lbs
  • Lift: 16-1/2"
  • Retracted height: 8"
  • Extended height: 24-1/2"
  • Hydraulic shaft diameter: 1-1/2"

Hydraulic System:

  • Configuration: single-point hydraulic tongue jack
  • Hydraulic power unit: dedicated pump and reservoir
  • Operation: hydraulic extension and retraction
  • Manual override: not included
  • Reservoir capacity: 98 oz
  • Fluid: Dexron III ATF (not included)
    • Requires 2 quarts
  • Hydraulic hoses and fittings included

Electrical:

  • Power: 12V DC
  • Minimum battery cable size: 4 gauge
  • Control: local rubber-booted toggle switch
    • Extends and retracts jack
  • 12V battery required (not included)

Mounting:

  • Mount style: bolt on
  • Application: bumper-pull trailer tongue / A-frame
  • Designed for a standard bumper-pull tongue-jack opening
  • Mounting plate and hardware included
  • No welding required

Included Components:

  • 8,000-lb hydraulic tongue jack
  • Hydraulic pump and reservoir
  • Protective pump cover
  • Hydraulic hoses and fittings
  • Battery cable
  • Toggle switch and wiring
  • Mounting plate and hardware

Warranty:

  • 1-year limited warranty


QT8K-16-ET Quadra Manufacturing - Bigfoot Hydraulic Tongue Jack for Bumper Pull Trailers - 8K

Replaces QT8K-16

Installation Details BF34FR Installation instructions



Customer Satisfaction Score:

Ratings & Reviews

5.0

4 reviews
5 Stars
(4)
4 Stars
(0)
3 Stars
(0)
2 Stars
(0)
1 Star
(0)
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by:
Lifts trailer in seconds instead of minutes with an electric jack. Easy to install. Make sure to order battery cable and circuit breaker to complete installation.
by:
Works great and installed easily!
Mike L. profile picture
Etrailer Expert

Mike L.

9/30/2026

Nice install Mark, that looks awesome!!

by:
My trailer weighs 13000 lbs heavy tongue weight due to bathroom. Works as it should.
by:
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See what our Experts say about this Bigfoot Trailer Jack


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Alex H
Updated by:
Alex H
Employee Kim H
Written by:
Kim H

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