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The Sunex 66037 3.5 Ton Service Jack is engineered for professional automotive service and repair environments where reliability, speed, and durability are non-negotiable. Built on a heavy-duty chassis designed to resist twisting and withstand the rigors of continuous daily use, this jack delivers dependable performance lift after lift. The innovative RapidRise hydraulic power unit with dual pump pistons achieves maximum lift height in just six full pump strokes, dramatically reducing the time and effort required to position vehicles for service—boosting productivity in high-volume shops.
Featuring a 3.5-ton (7,000 lb) capacity, this service jack handles a wide range of vehicles from compact cars to full-size trucks. The low-profile design with a 3.875" minimum height provides excellent clearance for low-slung vehicles, while the extended 20.5" maximum lift height offers ample working room. The jack's round 1" thick cast steel saddle with a 4.75" diameter and grooved rubber saddle pad ensures a secure grip on vehicle frames and panel rails while protecting against scratches and damage during lifting operations.
Engineered for Professional Performance
This heavy-duty service jack is designed specifically for continuous, dependable performance in demanding automotive service and repair shop environments. The robust construction features a strong chassis with upper and lower frame flanges that effectively resist twisting forces, even under maximum load conditions. This structural reinforcement ensures long-term reliability and maintains precise lifting alignment over thousands of cycles.
Safety is built into every aspect of the design. Overload and bypass safety valves prevent the jack from being used beyond its rated capacity and protect against over-extension of the ram, safeguarding both technicians and vehicles. The rubber saddle pad provides dual functionality—protecting the vehicle frame from scratches while delivering a sure-grip lifting surface that won't slip during operation. The grooved saddle pad surface is specifically designed to accept vehicle panel rails for secure positioning.
Maneuverability is enhanced through intelligent wheel design. Wide front wheels paired with ball bearing-mounted rear caster wheels provide exceptional stability during lifting while ensuring smooth, easy positioning around the shop floor—even when loaded. The 50" pump handle features a protective pad that prevents damage to undercar components and protects adjacent vehicles during operation.
RapidRise Quick Lift Technology
The standout feature of the Sunex 66037 is its advanced RapidRise hydraulic power unit. This system incorporates dual pump pistons that work in tandem to raise the lift arm to maximum height in just six full incremental pump strokes—significantly faster than conventional single-piston jacks. This rapid lift capability translates directly into time savings and reduced physical strain for technicians, particularly valuable in busy shops handling multiple vehicles per day.
The angular positioned pump pistons are strategically oriented to provide maximum effective pump stroke when the jack is completely positioned under a vehicle. This design optimization ensures consistent, efficient lifting power throughout the entire range of motion. To maintain hydraulic system integrity and longevity, the pump pistons are equipped with dust shields and wiper seals that prevent contaminants from entering the hydraulic system—essential protection in real-world shop environments where dirt, fluids, and debris are constant challenges.
Key Advantages at a Glance
Quick Lift System: Dual pump RapidRise technology reaches full height in just 6 strokes for maximum productivity
Professional Capacity: 3.5-ton (7,000 lb) capacity handles trucks, SUVs, and a wide range of service vehicles
Exceptional Range: 3.875" low height to 20.5" high lift provides versatility for low-profile and high-clearance needs
Heavy-Duty Construction: Reinforced chassis with upper and lower flanges resists twisting under continuous professional use
Enhanced Safety Features: Overload and bypass valves, protected hydraulics, and secure grooved saddle pad
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⚠️ Truck Shipping Notice
Due to the size and weight of this professional service jack (117 lbs shipping weight), this item ships via freight truck only. Delivery requires a commercial address or liftgate service for residential locations.
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