Sea Sense Zinc Plated Square Tube Trailer Jack, 2500 lb Capacity

The Sea Sense Zinc Plated Square Tube Trailer Jack (part number 50017630) is a heavy-duty boat trailer jack rated for 2500 lb, built to raise and support the trailer tongue for hitching, unhitching, and level parking. It is designed to fit trailer tongue sizes up to 3 inches x 5 inches and uses a fixed, heavy-duty mount bracket for a solid, stable connection to the tongue.

The jack delivers 30 inches of lift measured from the bottom of the mounting bracket to the foot plate, with 13 3/4 inches of travel, giving enough range to level a variety of trailer heights. A power grip handle makes raising and lowering the tongue easier, while a built-in grease fitting keeps the internal gears and shaft properly lubricated for smooth, long-term operation. A quick release pin allows fast, tool-free foot plate adjustments so the jack can be reconfigured quickly at the trailer.

Construction is zinc plated steel, chosen to resist rust and corrosion in the wet, salt-exposed conditions typical of boat trailering and storage. This jack is sold as a standalone unit for tongue-mounted use on boat trailers with compatible tongue dimensions.

Specifications

• Brand: Sea Sense
• Manufacturer Part Number: 50017630
• Product Type: Trailer Jack
• Load Capacity: 2500 pounds
• Tongue Size Compatibility: Up to 3 inches x 5 inches
• Lift Height: 30 inches (from bottom of mounting bracket to foot plate)
• Travel: 13 3/4 inches
• Handle Type: Power grip handle
• Mount Type: Heavy-duty fixed mount bracket
• Material: Zinc plated steel
• Finish: Zinc plated
• Features: Built-in grease fitting, quick release pin for foot plate adjustment
• Weight: 10 pounds

Frequently Asked Questions

What is the load capacity of this trailer jack? The Sea Sense trailer jack, part number 50017630, is rated for 2500 pounds of load capacity.

What tongue sizes does the 50017630 jack fit? It fits trailer tongue sizes up to 3 inches x 5 inches, using a heavy-duty fixed mount bracket.

How much lift does this trailer jack provide? This jack provides 30 inches of lift measured from the bottom of the mounting bracket to the foot plate, with 13 3/4 inches of travel.

Does the trailer jack come with a foot plate? Yes, the Sea Sense square tube trailer jack (50017630) includes a foot plate, and it can be repositioned quickly using the quick release pin.

What is the jack made of? It is constructed of zinc plated steel, which resists rust and corrosion in wet and salt-exposed trailering conditions.

Does this jack have a grease fitting? Yes, a built-in grease fitting is included to keep the gears and shaft of the 50017630 jack well lubricated.

How do I adjust the foot plate position? The quick release pin on this Sea Sense trailer jack lets you adjust the foot plate position without additional tools.

Is this jack easy to crank up and down? The 50017630 jack uses a power grip handle designed to make raising and lowering the trailer tongue easier.

How much does this trailer jack weigh? The Sea Sense Zinc Plated Square Tube Trailer Jack weighs 10 pounds.

How is this jack mounted to the trailer? It uses a heavy-duty fixed mount bracket sized for tongues up to 3 inches x 5 inches.

What is the difference between this jack and Sea Sense's A frame trailer jack? The 50017630 square tube jack is rated for 2500 pounds, while Sea Sense's A frame trailer jack (part number 50017683) is rated for 2000 pounds and also offers an optional foot plate accessory; they are different products with different part numbers.