Bob's Machine Shop 4 Inch HD Versa Jac Manual Jack Plate - Aluminum, Up to 300 HP

The Bob's Machine Shop 4 Inch HD Versa Jac is a manual jack plate built from high-quality, aircraft-grade aluminum, engineered for boat owners who want the option to upgrade to hydraulic operation later without replacing the whole unit. It is rated for engines up to 300 max HP and provides a 4 inch setback. Unlike competitor designs that require separate setback spacers to reach the proper setback, the Versa Jac uses a one-piece design that achieves the setback directly, simplifying installation and reducing the number of parts that can loosen or fail over time.

The plate is pre-drilled for side mount power poles, so accessories can be added without additional fabrication. Manual adjustment is handled through a screw assembly that can be operated while the boat is in the water, and automotive-style grease nipples are built in for easy lubrication of the tension rods. When an owner is ready to move to all-hydraulic operation, the manual screw assembly can be removed with a few basic hand tools and swapped for a hydraulic cylinder kit, with the pump mounted inside the boat for protection from the elements and long service life. The structure carries a limited lifetime warranty, and the hydraulic pump option (when installed) carries a 5 year warranty excluding water damage.

Specifications

• Brand: Bob's Machine Shop
• Manufacturer Part Number: 100-504100-NOPC-NOSPN
• Product Type: Jack Plate
• Setback: 4 inches
• Operation: Manual, upgradeable to hydraulic
• Material: Aircraft-grade aluminum
• Color/Finish: Silver
• Maximum Horsepower Rating: 300 HP
• Mounting: Pre-drilled for side mount power poles
• Weight: 46 pounds
• Warranty: Limited lifetime warranty on structure; 5 year warranty on hydraulic pump upgrade (excludes water damage)

Frequently Asked Questions

What is the maximum horsepower rating for the Bob's Machine Shop 4 Inch HD Versa Jac? The Versa Jac jack plate (part number 100-504100-NOPC-NOSPN) is rated for engines up to 300 max HP.

What setback does this jack plate provide? This Versa Jac jack plate provides a 4 inch setback in a one-piece design, rather than requiring separate setback spacers as some competing plates do.

Can this jack plate be adjusted while the boat is in the water? Yes, the manual screw assembly on the 4 Inch HD Versa Jac is designed to be adjusted while the boat is in the water.

Can this manual jack plate be converted to hydraulic operation later? Yes, the Versa Jac's manual screw assembly can be removed with basic hand tools and replaced with a hydraulic cylinder kit and pump, which mounts inside the boat, when the owner is ready to upgrade.

What material is the jack plate made from? It is constructed from high-quality, aircraft-grade aluminum with a silver finish, giving the manual Versa Jac the same look as Bob's Machine Shop's hydraulic jack line.

Is this jack plate pre-drilled for power pole mounting? Yes, the 100-504100-NOPC-NOSPN Versa Jac is pre-drilled for side mount power poles.

How much does this jack plate weigh? The Versa Jac 4 Inch HD manual jack plate weighs 46 pounds.

How does this jack plate differ from other jack plates on the market? The Versa Jac uses a one-piece design to achieve its 4 inch setback, where many competing jack plates need add-on setback spacers, and it is the only jack plate in its line offering a factory upgrade path to hydraulic operation.

What warranty comes with this jack plate? The 4 Inch HD Versa Jac structure carries a limited lifetime warranty; if the hydraulic pump upgrade is added, that pump carries a separate 5 year warranty that excludes water damage.

How is the tension rod lubricated on this jack plate? The Versa Jac uses automotive-style grease nipples on its tension rods for easy lubrication.

Where is this jack plate manufactured? The Bob's Machine Shop Versa Jac jack plate is made in Florida, USA.