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Adjustable Manual Boat Jack Plate – High Grade Marine Aluminum – Standard Unit - for up to 30hp Outboard Motors – by On The Fly Jack Plates

  • Based on 68 reviews
Condition: New
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$599.00 Why this price?
Holiday Deal · 8% off was $648.99

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This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026

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Availability: 12 left in stock
Fulfilled by Amazon

Arrives Friday, Nov 14
Order within 10 hours and 51 minutes
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Features

  • Fastest manual jack plate on the market - Raise and lower your motor in seconds with quick and easy adjustments to make your boating experience effortless.
  • On-the-water adjustability - Make changes to your motor position at any time, even while on the water. Quickly adapt to any situation and make the most of your time on the water.
  • Ideal for a wide range of boats - Supports up to 30hp motors without factory trim and tilt.
  • Durable design - Made with high-quality materials and construction, this jack plate is built to last. Enjoy peace of mind with a 3-year warranty on the housing and 1-year warranty on the jack.
  • Simple installation - With included DIY instructions, installation is quick and easy. Whether you're a seasoned boater or a DIY enthusiast, this jack plate is designed for effortless installation.

Description

On The Fly Jack Plates are the fastest manual jack plates on the market. Our jack plates can be raised and lowered by a manual handle while on the water within seconds from top to bottom. Approved for up to 30hp motors (for motors without factory trim and tilt) Our custom manual jack mounts inside the jack plate housing 3 year warranty on the jack plate housing 1 year warranty on the jack Pre-drilled for transom mounting Jack plate housing WEIGHT: 25lbs JACK PLATE DIMENSIONS: Height – 11” Width (Transom Side) – 12 ½” Width (Motor Side) – 13 ¼” Set Back – 4 ¼” (between the transom bracket and the motor slide) Motor Plate Height – 12 ½” Motor Mounting Plate (Inside Brackets) – 10 ¾” MAX RISE (travel): 5 1/2 inches of travel. Plus, depending on where you mount the jack you can get up to7 3/4 inches of rise. ACCESSORIES NOT INCLUDED: Transom mounting accessories are not included in purchase. On The Fly Jack Plates recommends 4 each ½”- 3 1/2” long bolts – stainless steel 4 each ½”- lock nuts – stainless steel 8 each 1/2’”-flat washers – stainless steel Motor Clamp Spacers PATENTED

Load Capacity: 150 Pounds


Maximum Lifting Height: 5.5 Inches


Brand: ONTHEFLY JACK PLATES


Color: Grey


Item dimensions L x W x H: 15 x 15 x 6 inches


Load Capacity: ‎150 Pounds


Maximum Lifting Height: ‎5.5 Inches


Brand: ‎ONTHEFLY JACK PLATES


Color: ‎Grey


Item dimensions L x W x H: ‎15 x 15 x 6 inches


Style: ‎Utilitarian


Manufacturer: ‎On The Fly Jack Plates


UPC: ‎860006428105


Item Weight: ‎23 pounds


Product Dimensions: ‎15 x 15 x 6 inches


Date First Available: August 24, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Nov 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • How practical, simple and safe it is and how well they have improved it.
It seems to me a good product for what it was designed for, it also has the option in the future if you want to easily fit an engine with an interior that they sell on Amazon to use automatically to each person's taste or paying less than if you buy it already with everything, I have not mounted it yet because it is a project but soon I will transmit my experience but my expectation is the best, I will use it with a Mercury 20 HP manual 20" leg, in addition the seller is very accessible for any help and very cordial ... show more
Reviewed in the United States on April 10, 2025 by Raudel. Estevez

  • GREAT FOR SHALLOW WATER
ON MY 14 FT JON BOAT...WORKS GREAT
Reviewed in the United States on December 30, 2024 by David Dillehay

  • Awesome product
Great product very well built worth the money
Reviewed in the United States on January 24, 2025 by ADRIAN LOPEZ

  • Awesome ingenuity and great design
It is a awesome design and amazing functionality although these measurements should be added to the description. The predrilled holes are 8 1/2 inches apart and are from the top of the mount 1 1/4 and 9 1/2 both from the top of the mount. Here's my problem, the bottom predrilled holes of the mount are about 2 inches past my transom board because I didn't do a full transom. I see that the bottom mount can be moved up by removing the 4 hex bolts the redrilling new holes and possibly voiding the warranty.. This could have all been solved with that bottom mount being bigger without sacrificing height by raising the mount up. Now I've thought of another way to solve my problem would be raising the whole jack plate approximately an inch and half and drilling below the top 2 predrilled holes. Although I don't know what the effect would be. ... show more
Reviewed in the United States on October 29, 2022 by Corey D Clark

  • Good product
I put this on an all welded 14ft Jon boat with float pods and it works great. It's a little pricy, but that doesn't bother me as much as for the price it doesn't come with the bolts. If it did it would be 5 stars for sure, but I give it 4 only because of that.
Reviewed in the United States on July 1, 2025 by C. Stewart

  • On the fly jack plate
I have not installed this yet. Item seems to be what was definitely advertised. Seems to be well-made and well designed. I am looking forward to it.
Reviewed in the United States on October 13, 2025 by Amazon Customer

  • Best investment for shallow water boating
Solid jack plate they always take care of any issues promptly
Reviewed in the United States on September 29, 2025 by Dustin Jaramillo

  • Follow instructions
These people are great Jack plays awesome definitely a valued seller great product will buy again
Reviewed in the United States on March 9, 2025 by T zalys

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