Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
CURT Trailer Jack: Direct-Weld Square Jack, 12,000 lb Static Load Capacity, Sidewind - Trailer Jacks without Wheels
CURTTrailer Jacks without Wheels

CURT Trailer Jack: Direct-Weld Square Jack, 12,000 lb Static Load Capacity, Sidewind

The CURT Trailer Jack is a direct-weld square jack (Sidewind, Weld-On type) with a static load capacity of 12,000 lb and a maximum lift height of 40-1/4 in, featuring a foot plate base. 3G Electric interprets…

SKU 3G-OTH-499920

Brand
CURT
Item
Trailer Jack: Direct-Weld Square Jack, 12,000 lb Static Load Capacity, Sidewind
Category
Trailer Jacks without Wheels
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

CURT
Manufacturer Part Number
28512
Type
Sidewind, Weld-On
Base
Foot Plate
Handle Type
Sidewind
Mounting Type
Weld-On
Maximum Lift Height
40-1/4 in
Static Load Capacity
12,000 lb
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

CURT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CURT Trailer Jack is a direct-weld square jack (Sidewind, Weld-On type) with a static load capacity of 12,000 lb and a maximum lift height of 40-1/4 in, featuring a foot plate base. 3G Electric interprets customer demand and delivers this genuine CURT product across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as a trust anchor.

Frequently Asked Questions

What is the CURT 28512 trailer jack used for?

The CURT 28512 direct-weld square jack is used to lift and support the tongue of a trailer for coupling or leveling. With a 12,000 lb static load capacity and 40-1/4 in lift height, it suits heavy-duty trailers in agricultural, construction, and industrial applications.

What are the specifications of the CURT 28512 trailer jack?

The CURT 28512 is a Sidewind, Weld-On square jack with a static load capacity of 12,000 lb, maximum lift height of 40-1/4 in, and a foot plate base. It mounts by direct welding to the trailer frame and uses a sidewind handle for operation.

Where to buy the CURT 28512 trailer jack worldwide?

3G Electric supplies the genuine CURT 28512 trailer jack worldwide. We interpret your demand, source the product, and handle full logistics and customs clearance for delivery to your location. Contact us for availability and a quote.

How to install a CURT direct-weld trailer jack?

To install the CURT 28512, weld the square tube directly to the trailer frame at the desired height, ensuring the jack is plumb and the weld is full perimeter for strength. Use a suitable welding process per the trailer manufacturer's guidelines. Always support the trailer securely before installation.

Used in

Common applications for CURT
Fleet maintenance — CURT Box End Wrench (MPN 20001) for tightening hitch bolts and trailer fasteners
Construction site security — CURT Automotive Hitch Lock (MPN 23666) for securing equipment trailers and tool boxes
Warehouse operations — CURT cable locks for temporary locking of roll cages or pallet racks
Field service — CURT wrenches for on-site repair of towing equipment on service vehicles
Event logistics — CURT hitch locks for securing temporary barriers or stage equipment

CURT Products

3G Electric supplies CURT trailer jacks without wheels. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from CURT

View all CURT parts →
CURT Trailer Jack: Direct-Weld Square Jack, 8,000 lb Static Load Capacity, Topwind, Weld-On (MPN 28570). Key specifications — Handle Type: Topwind; Mounting Type: Weld-On; Maximum Lift Height: 39-1/2 in; Base: Foot Plate; Brand: CURT.
CURT
CURT Trailer Jack: Direct-Weld Square Jack, 8,000 lb Static Load Capacity, Topwind, Weld-On (MPN 28570). Key specifications — Handle Type: Topwind; Mounting Type: Weld-On; Maximum Lift Height: 39-1/2 in; Base: Foot Plate; Brand: CURT.
CURT Trailer Jack: Direct-Weld Square Jack, 5,000 lb Static Load Capacity, Sidewind, Weld-On (MPN 28359). Key specifications — Handle Type: Sidewind; Mounting Type: Weld-On; Maximum Lift Height: 39-7/8 in; Base: Foot Plate; Brand: CURT.
CURT
CURT Trailer Jack: Direct-Weld Square Jack, 5,000 lb Static Load Capacity, Sidewind, Weld-On (MPN 28359). Key specifications — Handle Type: Sidewind; Mounting Type: Weld-On; Maximum Lift Height: 39-7/8 in; Base: Foot Plate; Brand: CURT.
CURT Trailer Jack: A-Frame Jack, 2,000 lb Static Load Capacity, Topwind, A-Frame, 24 in (MPN 28202). Key specifications — Handle Type: Topwind; Mounting Type: A-Frame; Maximum Lift Height: 24 in; Brand: CURT.
CURT
CURT Trailer Jack: A-Frame Jack, 2,000 lb Static Load Capacity, Topwind, A-Frame, 24 in (MPN 28202). Key specifications — Handle Type: Topwind; Mounting Type: A-Frame; Maximum Lift Height: 24 in; Brand: CURT.
CURT Trailer Jack: Pipe-Mount Swivel Jack, 2,000 lb Static Load Capacity, Sidewind, Weld-On, 20 in (MPN 28321). Key specifications — Handle Type: Sidewind; Mounting Type: Weld-On; Maximum Lift Height: 20 in; Base: Foot Plate; Brand: CURT.
CURT
CURT Trailer Jack: Pipe-Mount Swivel Jack, 2,000 lb Static Load Capacity, Sidewind, Weld-On, 20 in (MPN 28321). Key specifications — Handle Type: Sidewind; Mounting Type: Weld-On; Maximum Lift Height: 20 in; Base: Foot Plate; Brand: CURT.
CURT Trailer Jack: Bracket-Mount Swivel Jack, 2,000 lb Static Load Capacity, Sidewind, Weld-On (MPN 28302). Key specifications — Handle Type: Sidewind; Mounting Type: Weld-On; Maximum Lift Height: 20-1/2 in; Base: Foot Plate; Brand: CURT.
CURT
CURT Trailer Jack: Bracket-Mount Swivel Jack, 2,000 lb Static Load Capacity, Sidewind, Weld-On (MPN 28302). Key specifications — Handle Type: Sidewind; Mounting Type: Weld-On; Maximum Lift Height: 20-1/2 in; Base: Foot Plate; Brand: CURT.
CURT Trailer Jack: Pipe-Mount Swivel Jack, 5,000 lb Static Load Capacity, Sidewind, Weld-On (MPN 28354). Key specifications — Handle Type: Sidewind; Mounting Type: Weld-On; Maximum Lift Height: 20-1/4 in; Base: Foot Plate; Brand: CURT.
CURT
CURT Trailer Jack: Pipe-Mount Swivel Jack, 5,000 lb Static Load Capacity, Sidewind, Weld-On (MPN 28354). Key specifications — Handle Type: Sidewind; Mounting Type: Weld-On; Maximum Lift Height: 20-1/4 in; Base: Foot Plate; Brand: CURT.
CURT Trailer Jack: Pipe-Mount Swivel Jack, 2,000 lb Static Load Capacity, Topwind, Weld-On, 31 in (MPN 28322). Key specifications — Handle Type: Topwind; Mounting Type: Weld-On; Maximum Lift Height: 31 in; Base: Foot Plate; Brand: CURT.
CURT
CURT Trailer Jack: Pipe-Mount Swivel Jack, 2,000 lb Static Load Capacity, Topwind, Weld-On, 31 in (MPN 28322). Key specifications — Handle Type: Topwind; Mounting Type: Weld-On; Maximum Lift Height: 31 in; Base: Foot Plate; Brand: CURT.
CURT Trailer Jack: Pipe-Mount Swivel Jack, 2,000 lb Static Load Capacity, Sidewind, Weld-On (MPN 28324). Key specifications — Handle Type: Sidewind; Mounting Type: Weld-On; Maximum Lift Height: 30-1/8 in; Base: Foot Plate; Brand: CURT.
CURT
CURT Trailer Jack: Pipe-Mount Swivel Jack, 2,000 lb Static Load Capacity, Sidewind, Weld-On (MPN 28324). Key specifications — Handle Type: Sidewind; Mounting Type: Weld-On; Maximum Lift Height: 30-1/8 in; Base: Foot Plate; Brand: CURT.