Is 1,500 lb Trailer Jack Enough for 21 ft Boat Trailer

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Question:

Hi I have a boat that is 21ft. and wanted to know if a electric tongue jack that is 1500 lb max would be enough power to do the job.. thank you

asked by: Jim M

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Expert Reply:

Trailer jacks are rated for the amount of tongue weight that the trailer has. Typically trailer tongue weight is around 10 percent of total trailer weight. So for a 1,500 lb jack to be at capacity the trailer would most likely weigh near 15,000 lbs. So a 21 ft boat trailer would have no problem with a 1,500 lb jack capacity.

Our most popular swivel jack for a boat trailer is the part # MJ-1200B which has a 1,200 lb capacity and would work well.

expert reply by: Jameson C

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Answer 1

I reached out to my contact over at Bulldog and when looking this they confirmed that the old Ranger trailers actually used a TJ650 style jack which they don’t make anymore. In that case we recommend replacing it with a new style jack next to the…

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Answer 2

Hey James, I attached a picture that shows all of the dimensions of the mounting holes that are on the Fulton trailer jack part #F27CR that you referenced.

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Answer 3

When it comes to The Fulton Bolt-Thru Swivel Marine Jack with Dual Wheels - Sidewind - Black - 12 inch Lift - 1,500 pounds #F27CR the mounting bracket is included. This jack will fit applications with a: 3 inch by 3 inch 3 inch by 4 inch 3 inch by 5…

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Answer 4

The rule of thumb for estimating a tongue weight is 10-15 percent of trailer weight. A 4,600 pound trailer would have a tongue weight between 460 and 690 pounds. Somewhere between a 1,000 to 2,000 pound capacity jack would be fine. Having a jack that…

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Answer 5

A trailer jack onlys needs to be rated for the tongue weight (TW) of a trailer, not the entire gross trailer weight (GTW). With that being said, the tongue weight of a trailer is typically 10-15% of the gross trailer weight. Therefore your boat…

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Answer 6

One way to determine the lift and jack height you need would be to measure the jack you currently have on your 2018 Intech Luna RV. If this is not possible, or you still aren't sure, you can also determine the correct jack using the coupler…

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Answer 7

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 8

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 9

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 10

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 11

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 12

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Is 1,500 lb Trailer Jack Enough for 21 ft Boat Trailer

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