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Bulldog
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Always the correct part
We know our products
Quality Products
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Complete kit bundle containing all necessary components for your project. Professional-grade components designed for reliable performance and long-lasting durability.
Strong, durable, and sturdy, the BULLDOG 12,000 lbs. support capacity square jack is the BIG reason why BULLDOG has carried the load in agricultural, construction, heavy-duty utility, and horse/livestock trailer industries since 1923. All BULLDOG 4" square jacks are rated for 12,000 lbs. support capacity and 10,000 lbs. lift capacity. The strength of the product, plus the wide variety of styles, makes this jack the best choice in its product class.
| BRAND: | BULLDOG |
| PART NUMBER: | 182800 |
| WARRANTY: | LIMITED 5 YEAR WARRANTY |
| WEIGHT: | 59 LBS |
| CAPACITY: | 12,000 LBS. |
| TRAVEL: | 12.5 IN. |
| RETRACTED: | 27.4 IN. |
| EXTENDED: | 53.6 IN. |
| MODEL NUMBER: | SWQ 180 DL-B-SR |
| HANDLE STYLE: | SIDEWIND |
| FOOT LENGTH: | 8.5 IN. |
| FOOT WIDTH: | 8 IN. |
| CYLINDER DIAMETER: | 4 IN. SQ. |
| ATTACHED WHEELS: | NO |
| MATERIAL: | STEEL |
| SPEEDY LIFT: | NO |
| COLOR: | GRAY |
Keywords: BD182800-30PK bundle kit, complete kit, professional components, industrial kit, BD182800, Bulldog
Founded in 1920, Bulldog has become the standard for heavy-duty trailer connection hardware in agricultural, military and utility service. The line covers gooseneck hitches and couplers, A-frame and channel-mount trailer couplers with the Wedge-Latch mechanism, and heavy-duty jacks, built for unmatched strength, reliability and safety under demanding loads.
Bulldog was founded in 1920 and has spent more than a century supplying the connection hardware that heavy trailers depend on. Its market has always been the demanding end: agricultural, military and utility applications where a coupler failure is not an inconvenience but a serious incident. The brand summarises its position as Tough and Tested, and it sits within the Horizon Global towing group alongside Reese, Draw-Tite, Fulton, Tekonsha, Bargman and Wesbar.
Gooseneck equipment is the brand's signature. Gooseneck hitches mount in the truck bed over the rear axle, which places the load where the chassis can carry it properly and allows far tighter turning than a receiver hitch permits. Matching gooseneck couplers attach at the trailer end, in round tube and square configurations across the capacity range used by livestock, equipment and flatbed trailers.
The conventional trailer coupler range is built around the Wedge-Latch mechanism, which uses a wedge to take up wear between coupler and ball rather than relying on a fixed clamp that loosens over time. That matters on a trailer accumulating hard miles, where slack in the coupling shows up as noise and shock loading. Couplers are offered in A-frame form for standard tongues and in channel-mount form for straight tongue and fabricated frames, with adjustable channel versions that let a coupler be positioned to suit the tongue height.
Heavy-duty jacks complete the line, sized for the tongue weights that gooseneck and equipment trailers generate. Across the range the emphasis is consistent: forged and heavy-section components, load ratings backed by testing, and hardware specified for agricultural, military and heavy-duty commercial use rather than occasional recreational towing.
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The jack is rated for 12,000 lb capacity. However, the actual capacity is limited to the lesser of the jack, footplate, or caster wheel capacity. Always refer to the stamped markings or decals on the product to obtain the rated capacity for your specific unit. If uncertain, contact Cequent Performance Products at 1-800-521-0510 or www.cequentgroup.com.
The jack has a 2-speed shift pattern where the jack handle moves 5/8″–3/4″ while shifting. High gear is engaged when the shaft is pushed in, and low gear is engaged when the shaft is pulled out. This clearance must be accounted for during installation to prevent interference with the tow vehicle, tongue, or other mounted accessories.
These jacks are designed for mounting to flat surfaces only. The jack must be mounted directly to a load-bearing member or via a weld-on pivot tube. Before mounting, confirm that there will be no interference from the tow vehicle, tongue, ground, and any other mounted accessories while stationary or in motion, including handle swing in both gears and swivel positions if applicable.
Yes. Before mounting the jack, confirm that there will be no interference from the tow vehicle, tongue, ground, and any other mounted accessories while stationary or in motion. Check for interference in all positions including handle swing in both gears (if applicable) and swivel positions if applicable. Check for interference again after installation is complete.
All welding must be performed by an AWS certified welder. For direct mount installation, three 2″ long 1/4″ fillet welds must be placed on both sides of the jack along the contacting surface. The welds should be as far apart as possible to maximize strength under load. For pivot tube mounting, weld all around the pivot tube with a 1/4″ fillet weld.
The manual does not specify the tools required for installation. Contact Cequent Performance Products at 1-800-521-0510 or www.cequentgroup.com for a complete tool list.
The manual does not provide a list of included hardware or components. Contact Cequent Performance Products at 1-800-521-0510 or www.cequentgroup.com to confirm what is included with your specific model.
Direct mount involves welding the jack directly to a load-bearing member with three 2″ long 1/4″ fillet welds on both sides. Pivot tube mounting involves welding a pivot tube to the tongue (non-beveled side) with a 1/4″ fillet weld all around, then mating the jack to the pivot tube and securing it with a supplied pin. Both methods require AWS certified welding.
1) All welding must be performed by an AWS certified welder. 2) The non-beveled side of the pivot tube is welded to the tongue. 3) Place the weld-on pivot tube against the tongue and weld all around with a 1/4″ fillet weld. Align one set of pivot mount holes vertically. 4) Mate the jack to the pivot tube and secure with the supplied pin. 5) Verify that the pivot pin is fully inserted through both sides of the pivot tube and the pivot mount.
Make certain the pivot pin is fully inserted through both sides of the pivot tube and the pivot mount before using the jack.
1) All welding must be performed by an AWS certified welder. 2) Place the jack at the desired location. 3) Weld 3″ in 2 locations on both sides of the jack using a 1/4″ fillet weld. The welds should be as far apart as possible to maximize strength under load. 4) If mounting in a tandem application, align the jacks carefully so they raise and lower together and share the load equally.
If mounting in a tandem application, align the jacks carefully so they raise and lower together and share the load equally.
Never position any part of your body under any portion of the product or the load being supported. Fully retract and/or rotate the jack before towing. Secure the load, vehicle, and trailer from rolling by blocking wheels when operating the jack or coupling the trailer. Do not allow children to play on or around the product or the load being supported. Never exceed the maximum rated capacity. These jacks are designed for vertical loading; excessive side forces may cause jack failure and must be avoided.
Fully retract and/or rotate the jack before towing.
Keep clear of the pinch point at the drop leg pin. The drop leg will naturally drop or retract very quickly depending on the model. Also keep clear of holes in the drop leg.
No. Never attempt to adjust the drop leg when the jack is under load.
When using the drop leg, make certain the drop leg pin is fully inserted before using the jack. Verify that the drop leg pin is fully inserted into the jack by checking for no clearance between the drop leg pin and housing. If you see clearance, you must adjust the drop leg to fully seat the pin into the hole location. If you are unable to fully seat the pin, do not use the jack.
Spring Return Drop Leg: The drop leg will naturally retract very quickly. Verify the jack is not supporting any load. If extended, place your foot on the foot plate to control the return. Disengage the drop leg pin, carefully move the drop leg to the desired position using your foot, then engage the pin. Non-Spring Return Drop Leg: The drop leg will naturally fall. Verify the jack is not supporting any load. If retracted, grasp the handle of the foot plate to control the fall. Disengage the pin, carefully move the drop leg to the desired position, then engage the pin. In both cases, verify the pin is fully inserted with no clearance before use.
The following procedures should be performed at least annually: The gears, bushings, and screw of the jack must be kept lubricated. For side-wind models, apply a small amount of automotive grease with a grease gun at the lubrication points found on the side of the jack near the input shaft, then rotate the jack handle to distribute the grease evenly. A lightweight oil must be applied to the input shaft bushings at both sides of the jack or gearbox. For top-wind models, the screw-stem should be lubricated with a lightweight oil. If equipped, the drop leg pin and spring must be kept clean and lubricated with a lightweight oil.
For side-wind models, apply automotive grease with a grease gun at the lubrication points near the input shaft. A lightweight oil must be applied to the input shaft bushings at both sides of the jack or gearbox. For top-wind models, the screw-stem should be lubricated with a lightweight oil. If equipped, the drop leg pin and spring must be kept clean and lubricated with a lightweight oil.
Use only Cequent Performance Products parts or parts of equal quality for repair. Replacement parts are available through Cequent Performance Products Customer Service Department at 1-800-521-0510. Please specify the product model number. Always replace bent, broken, or worn parts before using the product.
Cequent Performance Products warrants to the original consumer purchaser only that the product will be free from material defects in both material and workmanship for a period of five years, ordinary wear and tear excepted, provided that installation and use of the product is in accordance with product instructions. This warranty does not cover normal wear and tear, damage through abuse, neglect, misuse, accident, misapplication, overloading, improper installation (including welds), improper maintenance and repair, or product alteration by anyone other than Cequent Performance Products. Repair or replacement is your sole remedy under this warranty. To make a warranty claim, contact Cequent Performance Products at 47774 Anchor Ct. W., Plymouth, MI 48170, 1-800-521-0510, identify the product by model number, and follow the claim instructions provided. You will be responsible for return shipping costs. Retain your purchase receipt to verify date of purchase.
The jack is designed for mounting to flat surfaces only on trailers. Before installation, confirm there will be no interference from the tow vehicle, tongue, ground, or other accessories in all positions including handle swing and swivel. Contact Cequent Performance Products at 1-800-521-0510 to confirm fitment for your specific trailer.
Yes. All welding must be performed by an AWS certified welder. For direct mount, three 2″ long 1/4″ fillet welds are required on both sides. For pivot tube mounting, a 1/4″ fillet weld all around the pivot tube is required.
Fully retract and/or rotate the jack before towing.
The jack is rated for 12,000 lb, but actual capacity is limited to the lesser of the jack, footplate, or caster wheel capacity. Never exceed the maximum rated capacity. Refer to stamped markings or decals on the product for your specific unit's capacity.
Never position any part of your body under the product or load. Secure the load, vehicle, and trailer from rolling by blocking wheels. Do not allow children to play on or around the product. Never exceed maximum capacity. These jacks are designed for vertical loading only; avoid excessive side forces.
Perform lubrication at least annually. For side-wind models, apply automotive grease at lubrication points near the input shaft and apply lightweight oil to input shaft bushings. For top-wind models, lubricate the screw-stem with lightweight oil. If equipped, lubricate the drop leg pin and spring with lightweight oil.
Check for no clearance between the drop leg pin and housing. If you see clearance, adjust the drop leg to fully seat the pin into the hole location. If you are unable to fully seat the pin, do not use the jack.
If you see clearance between the drop leg pin and housing, you must adjust the drop leg to fully seat the pin into the hole location. You may need to lubricate the drop leg pin assembly as described in the maintenance section. If you are unable to fully seat the pin, do not use the jack. Contact Cequent Performance Products at 1-800-521-0510 for assistance.
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