Trailer Jack / Sidewind Swivel Tongue Jack
RAM 1,200 lb Sidewind Swivel Flip-Up Trailer Jack with Wheel
RAM sidewind swivel trailer jack with caster wheel, zinc-plated finish, 11" rise, and included mounting hardware for compatible trailer frames.
Part Number: MJ1200B 1,200 lb Capacity Fits 2", 3", 4" & 5" Frames
Overview
This RAM MJ1200B sidewind swivel flip-up trailer jack is designed for light-duty trailer tongue support where a wheel jack is preferred for easier trailer positioning. The swivel design allows the jack to rotate up for travel, while the caster wheel helps move the trailer during hookup, parking, and shop positioning on suitable surfaces.
R&P Service Insight
A trailer tongue jack should be matched by capacity, mounting style, frame size, lift height, and clearance before installation.
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Frame Fit: Rotatable mounting bracket is listed for 2", 3", 4", and 5" trailer frames.
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Wheel Convenience: Caster wheel helps reposition a light trailer more easily during hookup and storage.
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Travel Position: Swivel flip-up design lets the jack rotate out of the way for towing.
R&P Knowledge Hub
Compatibility: Intended for compatible trailer tongue applications using 2", 3", 4", or 5" frame mounting.
Vehicle / System Fit: Light-duty trailer tongue jack replacement or installation where a 1,200 lb sidewind swivel jack with wheel is appropriate.
Installation Notes: Confirm trailer frame size, mounting clearance, tongue weight, jack height range, and wheel clearance before ordering.
Performance Insight: The sidewind handle, swivel bracket, caster wheel, and zinc-plated finish make this a practical jack for common utility, small cargo, and light trailer service applications.
Brand & Fitment Note
Selling Brand: RAM
Application Reference: This listing is for a RAM trailer jack for compatible trailer frame applications where the dimensions, mounting style, and capacity match the trailer setup.
What This Means: This listing is for one RAM MJ1200B sidewind swivel flip-up jack with wheel and listed mounting hardware.
Before Ordering: Verify capacity, frame size, mounting bracket clearance, retracted height, extended height, and included hardware before installation.
R&P Repair Insight
Common trailer jack fit issues come from mismatched frame height, bracket position, wheel clearance, or insufficient capacity for the trailer tongue load.
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Capacity Check: Confirm the 1,200 lb jack rating is appropriate for the trailer tongue load.
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Height Check: Retracted height is 12-1/2" and extended height is 23-1/2", measured from the ground to the center of the mounting bracket.
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Mounting Check: Confirm the rotatable bracket and mounting plates have proper clearance on the trailer frame before tightening hardware.
Features
Sidewind Swivel Design
Sidewind handle operation with swivel flip-up function for easier travel clearance when the jack is not in use.
Included Caster Wheel
Wheel measures 5-3/4" diameter x 2" wide to help move the trailer during light-duty positioning.
Frame-Mount Hardware Included
Includes mounting plates, bolts, and nuts for compatible frame mounting applications.
Zinc-Plated Finish
Zinc-plated construction helps provide durability for normal trailer use and outdoor exposure.
Specifications
| Specification | Detail |
| Part Number | MJ1200B |
| Brand | RAM |
| Product Type | Sidewind swivel flip-up trailer jack with wheel |
| Jack Capacity | 1,200 lb |
| Rise | 11" |
| Retracted Height | 12-1/2" measured from ground to center of mounting bracket |
| Extended Height | 23-1/2" measured from ground to center of mounting bracket |
| Inner Tube Diameter | 1-3/4" |
| Outer Tube Diameter | 2" |
| Spring Pin | 1/2" for flip-up feature |
| Wheel Size | 5-3/4" diameter x 2" wide |
| Handle | 6-1/2" long with 1-1/4" radius handle |
| Mounting Bracket | 6-7/8" x 5-3/4" rotatable plate |
| Finish | Zinc plated |
Fitment / Application
| Category | Details |
| Vehicle / System | Trailer tongue jack system |
| Primary Fit | Compatible trailer frames measuring 2", 3", 4", or 5" |
| Mounting Style | Frame-mounted swivel bracket with mounting plates, bolts, and nuts |
| Recommended Use | Light-duty trailer support, hookup, parking, and trailer positioning where the listed capacity and dimensions match |
| Notes | Verify trailer tongue weight, frame size, mounting clearance, bracket location, and wheel clearance before ordering or installing. |
Hardware Details
| Hardware | Detail |
| Mounting Bolts | 4" long including 2" threads x 3/8" diameter x 16 threads per inch, coarse thread |
| Nuts | 3/8" coarse lock nuts |
| Mounting Plates | 6-1/2" long x 1-1/4" wide x 1/2" deep |
Included Components
| Quantity | Item |
| 1 | RAM sidewind swivel flip-up jack with wheel |
| 2 | Mounting plates |
| 4 | Mounting bolts |
| 4 | Mounting nuts |
Verify all measurements, jack capacity, trailer tongue weight, frame size, mounting clearance, bracket position, and included components before installation. This jack is intended only for compatible trailer applications where the listed capacity, height range, and mounting setup match the trailer.
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