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Bulldog
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Always the correct part
We know our products
Quality Products
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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: | 198100 |
| WARRANTY: | LIMITED 5 YEAR WARRANTY |
| WEIGHT: | 14.8 LBS |
| CAPACITY: | 7,000 LBS. LIFT |
| TRAVEL: | 10 IN. |
| RETRACTED: | 10.8 IN. |
| EXTENDED: | 20.8 IN. |
| CLEARANCE: | 4.25 IN. |
| MODEL NUMBER: | TWS 198 DTSM W/P&C |
| HANDLE STYLE: | TOPWIND |
| MATERIAL: | STEEL |
| FOOT LENGTH: | 8 IN. |
| FOOT WIDTH: | 6 IN. |
| FOOT PLATE SIZE: | 8 IN. X 6 IN. |
| 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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The jack capacity is limited to the lesser of the jack, footplate, or caster wheel capacity. The maximum rated capacity is stamped on markings or decals on the product itself. If you cannot find this information or are uncertain, contact Cequent Performance Products at 1-800-632-3290 or www.cequentgroup.com.
No. These jacks are not designed for mounting to round tongues. They are designed for use with flat or rectangular tongues.
The gap between the mounting bolts and the tongue is not to exceed 1/16 inch (1.5 mm). This applies to bolt-on mounting brackets.
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. Check for interference again after installation is complete.
1) Place the gear housing on the tongue and insert the supplied bolts in 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.
1) Place the jack against the tongue and position the mounting straps on the opposite side of the tongue. Align the holes in the mounting bracket with the holes in the mounting straps. 2) Insert the 4 bolts through the mounting bracket and mounting straps. The upper bolts should rest on the top of the tongue. The lower bolts should be less than 1/16 inch from the bottom of the tongue. 3) Secure with locknuts and torque to 25 ft. lbs. 4) Check for clearance of handle, trailer light cables, and coupler.
Place the jack bracket over the mount and place the snap ring in the groove. Seat the snap ring fully into the groove. Before installing the snap ring, inspect the snap ring groove and remove any debris.
Place the jack bracket into the recessed opening on the mount. Place the small end of the bushing into the jack bracket and onto the bolt. Tighten the locknut until there is little movement in the bushing. The bolt should be installed between the trailer tongue and mount; the jack bracket will be held by the bushing between the locknut and the mount.
A-plate jacks are designed for mounting to 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. Use 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, torque 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. 6) Rack jacks with a similar A-plate incorporated into their design may be attached according to these instructions.
1) All welding must be performed by an AWS certified welder. 2) Place the jack at the desired location. 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.
No. Do not attempt to weld bolt-on brackets or straps to the tongue. Special brackets are available for weld-on applications. Contact Cequent Performance Products at 1-800-632-3290 for weld-on bracket options.
Torque all locknuts to 25 ft. lbs. for bolt-on rack jacks and bolt-on mounting brackets.
Use three 3/8-16 grade 5 bolts with washers and torque to 15-20 ft. lbs. when bolting the jack A-plate to the coupler.
Use a 3/16 inch fillet weld for all weld-on installations, including direct-mount, A-plate, and pivot tube mounting.
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.
Before manually moving the trailer, crank the jack to its lowest position.
Secure the load, vehicle, and trailer from rolling by blocking the wheels when operating the jack or coupling the trailer.
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. Never attempt to adjust the drop foot or drop leg when there is any load on the jack.
If this product is a swivel jack, lock the plunger pin into a hole in the mounting bracket before raising or lowering the tongue.
If this 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.
These jacks are designed for vertical loading. Excessive side forces may cause jack failure and must be avoided. The 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.
If this product is a rack jack, do not raise the gear housing above the inner tube.
The following procedures should be performed at least annually.
For side-wind models, the internal gearing and bushings of the jack 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 this product is used in a marine environment, flush the jack assembly and bushings 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.
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.
Jack capacity is limited to the lesser of the jack or caster. Use 4 3/8 inch bolts, washers, and locknuts as shown in the assembly instructions.
Always replace bent, broken, or worn parts before using this product.
All welding must be performed by an AWS certified welder.
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 1-800-632-3290. Please specify the product model number.
No. These jacks are not designed for mounting to round tongues.
No drilling is required. Bolt-on jacks use existing or pre-drilled holes in the tongue. The gap between mounting bolts and tongue must not exceed 1/16 inch.
Welding is required only for weld-on installations (direct-mount, A-plate weld-on, and pivot tube weld-on). Bolt-on and snap ring models do not require welding. All welding must be performed by an AWS certified welder.
Torque all locknuts to 25 ft. lbs. for bolt-on installations.
Fully retract and rotate the jack before towing. Remove any optional drop foot or caster before towing to maximize ground clearance.
No. These jacks are designed for vertical loading only. Excessive side forces may cause jack failure and must be avoided.
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.
Bulldog and Fulton products are warranted for five years; Pro-Series and Reese Towpower products are warranted for one year, from the original consumer purchaser, provided installation and use comply with product instructions.
No. The purchaser/owner must not alter or modify the product. Modifications void the warranty.
| Part Number | Model Number | Description | Lift Capacity (lbs.) | Pin (in.) | Handle Style | Travel (in.) | A Retracted (in.) | B Extended (in.) | C Clearance (in.) |
|---|---|---|---|---|---|---|---|---|---|
| 158451 | TWS 158 DTSF w/P&C | Includes Footplate and Male Mating Mount | 2,000 | 9/16 | Topwind | 10.00 | 11.00 | 21.00 | 4.00 |
| 158452 | TWL 158 DTSF w/P&C | Includes Footplate and Male Mating Mount | 2,000 | 9/16 | Topwind | 15.00 | 14.50 | 29.50 | 10.00 |
| 158486 | TWL 158 DTSF w/P&C | Includes Footplate and Male Mating Mount | 2,000 | 9/16 | Topwind | 15.00 | 16.00 | 31.00 | 10.00 |
| 150441 | TWS 150 DTSF w/P&C | Includes Footplate, Clear Zinc Finish | 2,000 | 9/16 | Topwind | 10.00 | 11.00 | 21.00 | 4.00 |
| 158109 | SWS 158 DTSF w/P&C | Includes Footplate and Male Mating Mount | 2,000 | 9/16 | Sidewind | 15.00 | 14.50 | 29.50 | 12.20 |
| 158151 | SWL 158 DTSF w/P&C | Includes Footplate and Male Mating Mount | 2,000 | 9/16 | Sidewind | 10.00 | 11.00 | 21.00 | 8.00 |
| 178101 | TWS 178 DTSF w/P&C | Includes Footplate and Male Mating Mount | 5,000 | 9/16 | Topwind | 10.00 | 11.25 | 21.25 | 6.00 |
| 178109 | TWS 178 DTSF w/P&C | Includes Footplate and Male Mating Mount | 5,000 | 9/16 | Sidewind | 15.00 | 15.20 | 30.50 | 6.20 |
| 178110 | TWS 178 DTSF | Includes Footplate and Male Mating Mount | 5,000 | 9/16 | Topwind | 10.00 | 10.50 | 16.80 | 8.50 |
| 178112 | TWS 178 DTSF | Includes Footplate | 5,000 | 9/16 | Topwind | 10.00 | 10.50 | 16.80 | 8.50 |
| 178151 | TWL 178 DTSF w/P&C | Includes Footplate and Male Mating Mount | 5,000 | 9/16 | Topwind | 15.00 | 14.70 | 29.70 | 10.00 |
| 178201 | SWS 178 DTSF w/P&C | Includes Footplate and Male Mating Mount | 5,000 | 5/8 | Sidewind | 10.00 | 10.40 | 20.80 | 6.40 |
| 178203 | SWL 178 DTSF w/P&C | Includes Footplate and Male Mating Mount | 5,000 | 5/8 | Sidewind | 15.00 | 15.00 | 30.30 | 6.40 |
| 620023 | 5 SM-15-0 w/P&C | Includes Footplate and Male Mating Mount | 5,000 | 5/8 | Sidewind | 15.00 | 15.50 | 30.50 | 6.20 |
| 620057 | 7 SM -15-0 w/P&C | Includes Footplate and Male Mating Mount | 7,000 | 5/8 | Sidewind | 15.00 | 16.00 | 31.00 | 4.65 |
| 198100 | TWS 198 DTSM w/P&C | Includes Footplate and Female Mating Mount | 7,000 | 5/8 | Topwind | 10.00 | 10.80 | 20.80 | 4.50 |
| 198200 | TWL 198 DTSM w/P&C | Includes Footplate and Female Mating Mount | 7,000 | 5/8 | Topwind | 15.00 | 15.80 | 30.80 | 4.25 |
| 198150 | SWS 198 DTSM w/P&C | Includes Footplate and Female Mating Mount | 7,000 | 5/8 | Sidewind | 10.00 | 11.00 | 21.00 | 5.00 |
| 198250 | SWL 198 DTSM w/P&C | Includes Footplate and Female Mating Mount | 7,000 | 5/8 | Sidewind | 15.00 | 16.00 | 31.00 | 5.00 |
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Ordered online. Shipment arrived on time and with all the correct parts. Great customer service and friendly staff. Also, pricing was great!
May 22, 2023
