Blackhawk B6350 Black/Red Fast Lift Service Jack - 3.5 Ton Capacity, 28 1/2" L x 13 3/4" W x 6 1/2" H

What It Is

The Blackhawk B6350 is a low-profile, 3.5-ton capacity service jack designed for lifting riding mowers, zero-turn mowers, ATVs, and lawn tractors for maintenance tasks like blade changes, deck removal, or axle service. Its low 6.5-inch height and wide 28.5-inch frame suit it for heavy-duty residential and light commercial mower lifts.

Fitment & Compatibility

• Deck clearance: Minimum 6.5 inches of clearance under the mower’s frame or axle to slide the jack in. Measure your mower’s lowest point (e.g., under the deck or frame rail) before buying.
• Lift points: Works with most riding mowers and zero-turns that have a solid frame, axle, or reinforced deck cross-member. Avoid plastic or thin stamped decks—use a jack pad or wood block to spread load.
• Weight capacity: 3.5 tons (7,000 lbs) is overkill for typical lawn mowers (300-800 lbs), but ensures stability for larger garden tractors or ATVs. Check your mower’s weight—if under 1,000 lbs, this jack is safe but heavy to move.
• OEM vs aftermarket: No specific brand lock-in. Works universally with any mower that has a flat, rigid lift point and at least 6.5 inches of ground clearance.
• Measurements: 28.5" L x 13.75" W x 6.5" H. Ensure your mower’s wheelbase and deck overhang allow the jack to be positioned without hitting tires or deck edges.

Key Things to Know

• Lifting range: 6.5" to 21.5". Enough for deck removal and tire changes, but not for full frame lifts (e.g., engine swaps). Use jack stands for safety.
• Build quality: Heavy-duty steel frame, dual pump pistons, and a bypass valve. Weighs ~60 lbs—not easily portable. Stable under load but requires firm, level ground.
• Installation difficulty: No assembly required. Use immediately—just check hydraulic oil level and purge air before first use (open release valve, pump handle a few times).
• Common gotcha: The release valve is sensitive—turn slowly to lower. Sudden release can drop the mower. Always chock wheels and use jack stands for any work under the mower.

Should You Buy It

Buy this if you need a low-profile, high-capacity jack for frequent mower maintenance and have enough ground clearance (6.5+ inches) to slide it under. It’s overbuilt for small push mowers but ideal for heavy zero-turns, garden tractors, or ATVs. Skip it if you only need occasional lifts—a lighter, cheaper jack (e.g., 1.5-ton) will be easier to store and move.