Welcome to our store Learn more

New collections added! Learn more

Free shipping over $99

10% OFF YOUR FIRST ORDER USE CODE: WELCOME10

RGP 1,200 lb Marine Boat Trailer Jack with 6" Wheel, Sidewind Swivel, 10" Travel, MJ-SW-1200B-10


Regular price $42.89 USD
Shipping calculated at checkout.

RGP 1,200 lb Marine Boat Trailer Jack with 6" Wheel, Sidewind Swivel, 10" Travel, MJ-SW-1200B-10 is backordered and will ship as soon as it is back in stock.


Care information

To ensure optimal performance and extend the service life of your new trailer components, please follow these care guidelines after purchase:

  • Before installation, check all parts for shipping damage or missing components. Do not install damaged parts.
  • Always use correct tools and torque settings. Improper installation can lead to premature wear or failure.
  • For bearings, suspensions, and brake components, apply high-quality trailer grease before first use if not pre-greased.
  • Some parts (like brake assemblies) require a short break-in period to achieve full performance. Follow manufacturer instructions for best results.
  • Recheck fasteners, grease levels, and moving components after 100 miles of towing, then at regular intervals.
  • After exposure to water, road salt, or mud, clean and dry parts thoroughly. Apply anti-rust treatment if needed.
  • If storing unused parts, keep them in a dry, sealed container away from moisture and direct sunlight.

Delivery and Shipping

Handling Time: Orders ship out within 1 business day after payment is received.

Shipping Methods: We use trusted carriers like UPS, FedEx, or USPS based on package size and destination.

Delivery Time: Estimated delivery within 2–6 business days (U.S. domestic orders).

Tracking: A tracking number will be provided once your order is dispatched.

This brake assembly fits most standard 7,000 lb trailer axles that use 12" × 2" electric brakes with a 5-bolt mounting flange. Please verify your axle rating and brake dimensions before ordering. If you're unsure, send us your axle tag or hub information and we'll help confirm compatibility.
Yes. It is compatible with many standard Dexter, Lippert, Rockwell American, AL-KO, and other 7,000 lb trailer axles that use a standard 12" × 2" brake assembly. Always verify your axle specifications before purchasing.
Yes. This is a self-adjusting electric brake assembly, which automatically maintains proper brake shoe clearance during normal operation. This reduces maintenance and helps provide consistent braking performance.

Product Overview

Raise, lower, and maneuver your boat or utility trailer with the MJ-SW-1200B-10 Marine Trailer Jack. Rated for 1,200 lbs of lift and support capacity, this bolt-on swivel jack features a 6" wheel, sidewind handle, and 10" of vertical travel for convenient trailer coupling, positioning, and tongue support. The swivel mounting bracket allows the jack to swing up and out of the way when the trailer is ready for travel. 

Built for marine and outdoor trailer applications, the jack features a clear zinc finish to help protect the steel construction from moisture and regular environmental exposure. A heavy-duty pull pin locks the swivel mechanism into position, while the single 6" wheel provides mobility when repositioning compatible boat, utility, cargo, livestock, and recreational trailers. Similar 1,200 lb marine jack configurations use the same sidewind, swivel, single-wheel design for this purpose. 

The included bolt-on mounting hardware is designed to fit trailer frames ranging from 2" x 2" up to 3" x 5", allowing installation without welding. With a 12.6875" bracket height and 10" travel range, the jack provides a compact side-mount solution for trailer tongue support while remaining easy to swing into the travel position when not in use.

What's Included

1 x Marine Trailer Jack

1 x 6" Wheel

1 x Side-Wind Handle

1 x Swivel Mounting Bracket

1 x Heavy-Duty Pull-Pin

1 x 3/8-16 x 4" Bolt-On Hardware Pack

Specifications

Brand: RGP

Manufacturer part number: MJ-SW-1200B-10

Product type: Marine Trailer Jack

Jack type: Bolt-On Swivel Trailer Jack

Lift capacity: 1,200 lbs

Support capacity: 1,200 lbs

Handle type: Sidewind

Travel: 10"

Wheel diameter: 6"

Wheel configuration: Single wheel

Bracket height: 12.6875"

Fits trailer frames: 2" x 2" to 3" x 5"

Mount type: Bolt-on side mount

Swivel mechanism: Pull-pin swivel bracket

Mounting hardware: 3/8"-16 x 4" bolt-on hardware

Finish: Clear zinc

Color: Silver

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.