At a Glance
- SKU: SJ003B1DEVQ
PRODUCT INFORMATION
Product Details
STILLWELL HYDRAULIC SYSTEMS / VAQUERO SERIES
Stillwell Tradesman Vaquero 7K Self-Contained Hydraulic A-Frame Jack
An all-in-one hydraulic solution designed to replace traditional manual hand-crank jacks with effortless, integrated 12V power.
Part Number: SJ003B1DEVQ 7,000 LB Capacity Integrated 12V Pump
Overview
The Stillwell SJ003B1DEVQ Tradesman unit is a heavy-duty hydraulic jack engineered for high-frequency use on work trailers. Unlike standard hydraulic setups that require mounting a separate pump box and running hydraulic lines, the Vaquero houses everything inside the jack head. This "plug-and-play" design makes it the ultimate upgrade for dump trailers, equipment haulers, and utility trailers.
R&P Service Insight
We recommend this jack for professionals who unhook frequently. It saves time and physical strain compared to manual jacks.
- High Power: Bucher pump capable of over 10,000 lbs force.
- Compact: No external plumbing or bulky reservoir boxes required.
- Safety: Includes a manual hydraulic override for peace of mind.
R&P Knowledge Hub: Usage & Operation
Operation: Use the included 15-foot corded remote to raise or lower the trailer. Ensure your battery is fully charged for peak performance.
Emergency Override: In the event of power loss, locate the override valve on the pump. Pull the knob and turn 1/4 to lock open, allowing the jack to retract under the trailer's weight.
System Bleeding: If the jack feels "spongy," extend it 1/4 of the way and retract fully. Repeat 3–5 times to cycle air back to the reservoir.
Maintenance: Check fluid only when fully retracted. Use ATF (Dexron III) for top-offs and grease the inner leg seasonally to prevent corrosion.
R&P Installation Insight
Installation is straightforward for anyone comfortable with basic 12V wiring and bolt-on components.
- Mounting: Drops into standard 2.25" A-frame coupler holes; uses standard 3-bolt pattern.
- Electrical: Connect directly to a 12V Deep Cycle battery. Ensure a clean ground through mounting bolts.
- Protection: Custom-molded cover protects internal electronics from rain and debris.
Key Features
Self-Contained Power
Pump, motor, and reservoir are integrated into the jack head for a clean, hose-free installation.
Bucher Hydraulics Pump
High-performance pump capable of generating up to 3,200 PSI for reliable lifting force.
Tradesman Durability
Specifically designed for work trailers with a black powder coat finish and weather-sealed cover.
24" Total Travel
Ample vertical travel to accommodate various hitch heights and uneven terrain conditions.
Specifications
| Specification | Detail |
|---|---|
| Part Number | SJ003B1DEVQ |
| Lift Capacity | 7,000 lbs |
| Voltage | 12V DC |
| Max Pressure | 3,200 PSI |
| Fluid Type | ATF (Dexron III) |
| Total Travel | 24 Inches |
| Retracted Height | ~32 Inches |
Fitment / Application
| Category | Details |
|---|---|
| Mounting Style | Bolt-on A-Frame (3-Hole) |
| Body Diameter | 2.25 Inches |
| Trailer Type | Dump, Equipment, Utility |
| Notes | Fits standard triangular 3-hole A-frame mounting patterns found on most bumper-pull couplers. |
Included Components
| Quantity | Item |
|---|---|
| 1 | Vaquero Hydraulic A-Frame Jack Unit |
| 1 | 15-Foot Corded Remote Controller |
| 1 | Custom Molded Power Unit Cover |
Safety Warning: Never work under a trailer supported only by the jack. Always use jack stands. Ensure the battery is disconnected during installation to prevent accidental activation. Verify all measurements and mounting patterns before installation.
Related Parts & Kits
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BEHIND THIS LISTING
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815-357-3292 · 270 E Jackson St · Seneca, IL 61360
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TRAILER PARTSGOOGLE
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RV KEYSGOOGLE
Found the correct RV keys at a good price with free shipping; the keys worked as expected.
AXLE & LEAF SPRINGSGOOGLE
Needed an unusual axle and leaf-spring size; the team listened and helped him sort out the fit.
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CUSTOM AXLEGOOGLE
Got the axle he needed right away, set up with a custom spring perch.
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Praised the polite staff and quality welding on a project.
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Replacement struts brought a long-used door back to working order.
CUSTOM TRAILERGOOGLE
Had a trailer built to his needs at a fair price, then found parts for two other trailers in stock.
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The right parts arrived the first time, with fast delivery and helpful staff.
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Reported helpful service and fast shipment to Germany.
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Was pleased with a replacement trailer cord.
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Said the axle installation fit perfectly and thanked Josh and the crew.
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Received the item as described with very fast shipping and plans to return.
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Reported that the newly installed parts were working perfectly.
REPEAT CUSTOMERYELLOW PAGES
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COMMUNICATION & SHIPPINGYELLOW PAGES
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AXLE HELPYELLOW PAGES
Said R&P helped their company get back on the road after an axle problem.
DUMP TRAILERYELLOW PAGES
Was happy with a dump-trailer purchase after comparing options.
BRAKES, DRUMS & SEALSYELLOW PAGES
Received clear help choosing brake assemblies and bearing seals, followed by fast shipping.
DUMP TRAILERYELLOW PAGES
Found a good deal on a 16-foot dump trailer and planned to return.
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