Sliding Bridge Jacks

Bridge Jacks: Turn Your 4 Post Lift Into a Complete Service Center.

A 4 post lift is the perfect platform for parking, storage, and basic underbody work. Add a bridge jack and it becomes something else entirely: a complete service center where you can lift the wheels off the runways, swap tires, pull brakes, work on suspension, and tackle anything you'd normally need a 2 post lift for. One lift, two jobs done.

Whether you go with a rolling bridge jack that wheels into position or a sliding bridge jack that locks into runway tracks, this is the upgrade that doubles what your 4 post lift can do.

Why Add a Bridge Jack to Your 4 Post Lift

• Full wheel-off access. Lift the vehicle off your runways without leaving the 4 post lift. Tire rotations, brake jobs, wheel bearings, suspension work, all done at the perfect height.
• No second lift required. Skip the cost and floor space of a separate 2 post lift. A bridge jack delivers similar functionality on the lift you already own.
• Faster service work. Roll or slide the jack into position, lift, work, lower, done. No moving the vehicle. No setting up a separate bay.
• Professional-grade options available. ALI certified bridge jacks deliver the same safety standards trusted by commercial shops nationwide.

Rolling vs. Sliding: What's the Difference?

Both types let you lift wheels off the runways. They just get there differently:

• Rolling Bridge Jacks. Sit on top of the lift runways with built-in casters or wheels. Roll the jack to wherever you need to lift, lock it down, and lift. The most popular type, available in capacities from 5,000 to 8,000 lbs. Easy to reposition, easy to remove when not in use.
• Sliding Bridge Jacks. Slide along tracks built into the runway grooves of compatible 4 post lifts. Lower profile than rolling jacks and stay locked in their tracks even when not in use. The Atlas PROJACK35 at 3,500 lbs manual hydraulic and the Torin QJYJ020 at 8,000 lbs are the sliding options in this collection.

What's in the Collection

Different lifts need different jacks. Here's how the lineup breaks down:

• Atlas Rolling Bridge Jacks. Air-hydraulic operation in 6,000, 7,000, and 8,000 lb capacities. The Atlas ATEAP-RJ7000 is ALI Certified, the gold standard for lift safety. Heavy-duty RJ8A and standard RJ8000BK models give you serious capacity for trucks and commercial vehicles.
• Katool Rolling Bridge Jacks. The KT-RJ50 at 5,000 lbs and KT-RJ70 at 7,000 lbs. Designed specifically to fit the Katool KT-4H110 and KT-4H850 4 post lifts. If you own a Katool lift, these are the jacks engineered for it.
• Atlas Sliding Bridge Jack. The PROJACK35 at 3,500 lbs manual hydraulic. The budget-friendly entry point for adding service capability to a 4 post lift.
• Torin Sliding Bridge Jack. The QJYJ020 at 8,000 lbs. Heavy-duty sliding capacity for serious shop work.

What to Look for Before You Buy

1. Verify Compatibility With Your 4 Post Lift

This is the most important step. Bridge jacks aren't universal. Some are brand-specific (Katool jacks are built for Katool lifts), others are designed for general fitment within a runway width range, and sliding jacks need runways with the right groove profile to accept the jack's slide rails. Check your lift's runway dimensions and compatibility specs before ordering. A bridge jack that doesn't fit your lift is just an expensive piece of steel sitting in your garage.

2. Match the Capacity to Your Heaviest Vehicle

Bridge jacks in our collection range from 3,500 to 8,000 lbs. Always size up. The bridge jack lifts the vehicle off the runways, so its capacity needs to handle the full vehicle weight, not just half of it. For trucks, SUVs, and commercial vehicles, lean toward the 7,000 lb and 8,000 lb options. For lighter passenger cars, the 5,000 to 6,000 lb range is plenty.

3. Pick the Right Power Source

• Air-Hydraulic. Push-button operation using shop air. Smooth, fast, professional. The choice for shops with compressed air on tap and frequent use.
• Manual Hydraulic. Pump it up by hand. Reliable, no air supply needed, lower price point. Ideal for home garages without a compressor or for buyers who don't need daily commercial use.

4. Look for Real Safety Features

A bridge jack holds the full weight of the vehicle off your lift's runways, so safety is non-negotiable. Look for:

• Mechanical safety locks at multiple positions throughout the lifting range
• Hydraulic check valves that prevent sudden drops if a hose or seal fails
• ALI certification on commercial-grade models, the gold standard for bridge jack safety
• Adjustable saddle pads with rubber contact surfaces that protect your vehicle's frame
• Heavy-gauge steel construction rated for the full lifting capacity

5. Consider How Often You'll Actually Use It

If you're doing daily commercial service work, get the air-hydraulic ALI certified option. If you're a home garage owner doing tire rotations and brake jobs a few times a year, the manual hydraulic sliding bridge jack is a solid, affordable choice. Match the tool to the use case, not the other way around.

Double What Your 4 Post Lift Can Do.

At Garage Lifts Direct, our bridge jack collection comes from trusted brands like Atlas, Katool, and Torin, all selected to work with the kind of 4 post lifts our customers actually own. Whether you're outfitting a commercial shop with ALI certified equipment, adding service capability to a home garage 4 post lift, or matching a Katool jack to a Katool lift, we've got the bridge jack built for the job.

Browse our bridge jacks and turn your 4 post lift into the most useful piece of equipment in the garage.