Bulldog Round Trailer Jack, Side Mount, 2,000 lbs. Lift Capacity, Side Wind, Weld-On, 10 in. Travel BD1581090117Bulldog$148.46Out of Stock
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BULLDOG round jacks are recognized as the industry standard by leading agricultrual, commercial, horse, livestock, and other trailer manufacturers. For more than three quarters of a centruy, BULLDOG jacks have been demonstrated to be the most reliable, field-proven jacks on the market.
| BRAND: | BULLDOG |
| PART NUMBER: | 150010 |
| WARRANTY: | LIMITED 5 YEAR WARRANTY |
| WEIGHT: | 7.55 LBS |
| CAPACITY: | 2,000 LBS. LIFT, 3,000 LBS. STATIC |
| TRAVEL: | 10 IN. |
| RETRACTED: | 17.1 IN. |
| EXTENDED: | 27.1 IN. |
| MODEL NUMBER: | SWS 150 |
| HANDLE STYLE: | SIDEWIND |
| MATERIAL: | STEEL |
| WHEEL: | NO |
| ATTACHED WHEELS: | NO |
| CYLINDER DIAMETER: | 2.25 IN. |
| SPEEDY LIFT: | NO |
| COLOR: | GRAY |
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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A tongue jack is a device mounted to a trailer tongue that raises and lowers the front of the trailer for coupling and uncoupling from the tow vehicle. This manual covers multiple styles: bolt-on rack jacks, snap ring models, bolt-thru models, A-plate jacks, direct-mount jacks, and pivot tube mounts. Each style serves the same function but mounts differently depending on your trailer type.
No. The manual explicitly states: 'These jacks are not designed for mounting to round tongues.' Tongue jacks are designed for flat or rectangular tongues only.
The gap between the mounting bolts and the tongue must not exceed 1/16 inch (1.5 mm). This applies to bolt-on mounting bracket installations. The upper bolts should rest on the top of the tongue, and the lower bolts should be less than 1/16 inch from the bottom of the tongue.
No. A-plate jacks are designed specifically for mounting to trailers with A-plate couplers only. If your trailer has a different coupler type, you will need a different jack mounting style.
Bolt-on rack jacks are supplied with bolts and locknuts. The exact number and size depend on your tongue width, as the bolts are inserted into holes corresponding to the tongue width. All bolts are torqued to 25 ft. lbs.
The manual does not specify which tools are required for bolt-on installation. For weld-on installations, an AWS certified welder is required. Contact Cequent Performance Products at 1-800-632-3290 for specific tool requirements for your jack type.
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 and swivel positions if applicable. After installation is complete, check for interference again. Specifically verify clearance of the handle, trailer light cables, and coupler.
1) Place the gear housing on the tongue and insert the supplied bolts into holes corresponding to the tongue width. 2) Place the mounting bracket below the tongue with the flat surface against the tongue. 3) Secure with locknuts and torque to 25 ft. lbs. Ensure the gap between mounting bolts and tongue does not exceed 1/16 inch.
1) Place the jack bracket over the mount. 2) Place the snap ring in the groove. 3) Seat the snap ring fully into the groove. Before installing, inspect the snap ring groove and remove any debris.
1) Place the jack bracket into the recessed opening on the mount. 2) Place the small end of the bushing into the jack bracket and onto the bolt. 3) Tighten the locknut until there is little movement in the bushing. The bolt should be installed between the trailer tongue and mount, and the jack bracket will be held by the bushing between the locknut and the mount.
A-plate jacks are designed for trailers with A-plate couplers. It is recommended to attach a bottom support plate to the bottom of the tongue. 1) All welding must be performed by an AWS certified welder. 2) If the A-plate is separate from the jack, align the jack (and foot, if equipped) with the jack and coupler as desired before welding using a 3/16 inch fillet weld. 3) Bolt the jack A-plate to the coupler using three 3/8-16 grade 5 bolts with washers, torqued to 15-20 ft. lbs. 4) Weld the recommended support plate to the bottom of the trailer frame using a 3/16 inch fillet weld. 5) If your jack is a plain mount type, it may be mounted directly to a coupler with a 3/16 inch fillet weld.
1) All welding must be performed by an AWS certified welder. 2) Place the jack at the desired location. 3) Weld 1 inch in 2 locations on both sides of the jack using a 3/16 inch fillet weld.
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 unless otherwise specified on hardware. 3) Place the weld-on pivot tube against the tongue and weld all around with a 3/16 inch fillet weld. Align one set of pivot mount holes vertically. 4) Mate the jack to the pivot tube and secure with the supplied pin.
The manual does not specify whether drilling is required for bolt-on installation. It states that you must use the correct mounting hole pattern for your tongue size and that holes must align with the mounting bracket and mounting straps. Contact Cequent Performance Products at 1-800-632-3290 to determine if your trailer requires drilling.
No. The manual explicitly states: 'Do not attempt to weld "Bolt-On" brackets or straps to the tongue. Special brackets are available for "Weld-On" applications.' If you need a weld-on installation, you must use the special weld-on brackets designed for that purpose.
All bolt-on mounting fasteners are torqued to 25 ft. lbs. This applies to both rack jack installations and bolt-on mounting bracket installations.
A-plate jacks are bolted to the coupler using three 3/8-16 grade 5 bolts with washers, torqued to 15-20 ft. lbs.
All weld-on installations require a 3/16 inch fillet weld. This applies to direct-mount installations, A-plate installations, and pivot tube mount installations. All welding must be performed by an AWS certified welder.
Fully retract and rotate the jack before towing. If using an optional drop foot or caster, always remove the drop foot or caster before towing to maximize ground clearance.
The jack capacity is limited to the lesser of the jack, footplate, or caster wheel capacity. Never exceed the maximum rated capacity. Refer to the stamped markings or decals on the product to obtain the rated capacity. If uncertain, contact Cequent Performance Products at 1-800-632-3290 or www.cequentgroup.com.
No. These jacks are designed for vertical loading only. Excessive side forces may cause jack failure and must be avoided.
Secure the load, vehicle and trailer from rolling by blocking the wheels when operating the jack or coupling the trailer.
Before manually moving the trailer, crank the jack to the lowest position.
No. If the product has a drop foot or drop leg, never attempt to adjust it when there is any load on the jack.
If the product is a swivel jack, lock the plunger pin into a hole in the mounting bracket before raising or lowering the tongue.
If the product has a pivot tube mount, make certain the pivot pin is fully inserted through both sides of the pivot tube and the pivot mount before using the jack.
When using the drop foot or drop leg, make certain the supplied pin is fully inserted through both sides of the inner tube and the drop tube before using the jack.
No. This product is not intended to be used as a transport device for the implement it is attached to. Minimize movement of the implement while the jack is under load.
No. If the product is a rack jack, do not raise the gear housing above the inner tube.
After installation is complete, check for interference again. Specifically verify clearance of the handle, trailer light cables, and coupler to ensure the jack does not interfere with these components when stationary or in motion.
The following procedures should be performed at least annually: For side-wind models, the internal gearing and bushings must be kept lubricated. Apply a small amount of automotive grease to the internal gearing by removing the jack cover, or if equipped, use a needle nose applicator or standard grease gun on the lubrication point found on the side of the jack near the crank. Rotate the jack handle to distribute the grease evenly. A lightweight oil must be applied to the handle unit at both sides of the tube for side-wind models. If equipped, the axle bolt and nut assembly of the caster wheel must also be lubricated with the same lightweight oil. For top-wind models, apply a lightweight oil to the screw stem. If the product is used in a marine environment, flush the jack assembly and bushings with fresh water and apply fresh lubricant.
Use automotive grease for the internal gearing and bushings of side-wind models. Use lightweight oil for the handle unit and caster wheel axle bolt and nut assembly on side-wind models, and for the screw stem on top-wind models. If the product is used in a marine environment, flush with fresh water and apply fresh lubricant.
1) Insert the long spacer into the wheel. 2) Set the wheel into the caster body and place the bolt through the caster body and wheel. 3) Secure with the nut provided. For heavy duty casters, use 4 3/8 inch bolts, washers, and locknuts as shown in the manual. Note that jack capacity is limited to the lesser of the jack or caster capacity.
1) Insert the long spacer into the roller followed by the thin spacer and the bolt. 2) Secure to the crank stem with the nut provided.
1) Place the washer over the screw stem and then place the handle over the screw stem. 2) Secure the handle to the screw stem with the bolt and nut provided.
No. Tongue jacks are not designed for mounting to round tongues. They are designed for flat or rectangular tongues only.
The gap must not exceed 1/16 inch (1.5 mm).
Yes, an AWS certified welder is required for all weld-on installations (direct-mount, A-plate, and pivot tube mounts). Bolt-on installations do not require welding.
Torque all bolt-on fasteners to 25 ft. lbs. A-plate bolts are torqued to 15-20 ft. lbs.
Fully retract and rotate the jack before towing. Remove any optional drop foot or caster before towing to maximize ground clearance.
Perform lubrication at least annually. Side-wind models require automotive grease on internal gearing and lightweight oil on the handle. Top-wind models require lightweight oil on the screw stem. In marine environments, flush with fresh water and apply fresh lubricant.
Before installing the snap ring, inspect the snap ring groove and remove any debris. Seat the snap ring fully into the groove. If debris is preventing proper seating, clean the groove thoroughly before attempting installation again.
Tighten the locknut until there is little movement in the bushing. The bolt should be installed between the trailer tongue and mount, and the jack bracket will be held by the bushing between the locknut and the mount.
Check for clearance of the handle, trailer light cables, and coupler after installation. If interference is found, the jack may not be installed in the correct position or the mounting location may need to be adjusted. Verify that the mounting bracket is positioned correctly and that all fasteners are properly torqued.
| Part Number | Model Number | Description | Lift Capacity (lbs.) | Handle Style | Travel (in.) | A Retracted (in.) | B Extended (in.) | C Clearance (in.) |
|---|---|---|---|---|---|---|---|---|
| 150037 | TWL 150 X | No Foot, No Mount | 2,000 | Topwind | 10.00 | 20.40 | 35.40 | - |
| 150010 | SWL 150 | No Foot, No Mount | 2,000 | Sidewind | 10.00 | 17.10 | 27.10 | - |
| 150152 | SWL 150 | No Foot, No Mount | 2,000 | Sidewind | 15.00 | 26.60 | 41.60 | - |
| 1500520317 | SWL 150 X | No Foot, No Mount | 2,000 | Sidewind | 15.00 | 23.60 | 38.60 | - |
| 150000 | TWL 150 | No Foot, No Mount | 2,000 | Topwind | 10.00 | 15.00 | 25.00 | - |
| 1701480317 | TWL 170 | No Foot, No Mount | 5,000 | Topwind | 15.00 | 21.00 | 36.00 | - |
| 170205 | SWL 170 | No Foot, No Mount | 5,000 | Sidewind | 15.00 | 19.20 | 34.20 | - |
| Replacement Parts | ||||||||
| 500236 | End Cap, 2 in. Diameter | |||||||
| 500256 | Sidewind Crank Assembly for 150 Series | |||||||
| 500105 | Sidewind Crank Assembly for 170 Series | |||||||
| 500180 | Topwind Crank Assembly | |||||||
| 500251 | Bearing Kit for 150 Series | |||||||
| 500223 | Thrust Bearing for 170 Series | |||||||
| 500106 | Sidewind Gear Kit for 150 Series and 170 Series | |||||||
| 500205 | Sidewind Crank Gear Box Cover | |||||||
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May 22, 2023