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Bulldog
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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.
Tough & Trusted BULLDOG presents a Powered Jack with all the capacity and features you want.
| BRAND: | BULLDOG |
| PART NUMBER: | 500200 |
| WARRANTY: | LIMITED 5 YEAR WARRANTY |
| WEIGHT: | 24.25 LBS |
| CAPACITY: | 4,000 LBS. |
| TRAVEL: | 22 IN. |
| HARDWARE INCLUDED: | NO |
| RETRACTED: | 9.75 IN. |
| SPEEDY LIFT: | NO |
| EXTENDED: | 34.5 IN. |
| COLOR: | WHITE |
| CLEARANCE: | 24 IN. |
| ATTACHED WHEELS: | NO |
| MATERIAL: | STEEL |
| FOOT WIDTH: | 5.278 IN. ROUND |
| FOOT LENGTH: | 5.278 IN. ROUND |
| CYLINDER DIAMETER: | 2.25 IN. |
Keywords: BD500200-10PK bundle kit, complete kit, professional components, industrial kit, BD500200, 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 Powered A-Frame Jack is an electrically powered lifting device designed to attach to the top surface of a trailer A-frame coupler. It extends to raise the trailer off the tow vehicle's ball coupler and retracts to lower it back down. The jack includes an LED light, manual override crank for emergency operation if power is lost, and an optional bubble level for trailer levelling. The motor is sealed and maintenance-free.
The part number is F3803-00 (Rev-D 7899, dated 10/16).
The Powered A-Frame Jack is designed to attach to the top surface of an A-frame coupler. The dual mounting pattern allows positioning of the jack either facing the tow vehicle or for side operation.
Yes. The dual mounting pattern allows positioning of the jack either facing the tow vehicle or for side operation, depending on your trailer layout and operational preference.
The manual instructs you to check for interference if your trailer has a weight distribution kit attached. You must verify that there is no interference to avoid damage during operation. If interference is found, consult the manufacturer before proceeding.
The jack includes three 3/8" diameter, 1" long grade 5 bolts and nuts, lock washers, and star washers for mounting. It also includes a manual override crank for emergency operation. An optional plunger pin kit assembly may be included. The manual override crank is stored under a removable cap on top of the plastic cover.
No. The battery and charger are not included with the jack. You must supply your own trailer battery and charger. The manual emphasizes that it is important to maintain the electrical system including the battery and charger, and that the battery must be fully charged prior to use.
Yes. You must disconnect the trailer battery ground cable before installation to avoid accidental shock and/or damage to the electrical system. Reconnect the battery ground cable after the wiring is complete and tested.
Attach the trailer to the tow vehicle, engage the vehicle's parking brake, and chock the wheels of the trailer. This prevents the trailer from rolling during installation and operation.
1. Attach trailer to tow vehicle, engage parking brake, and chock wheels. 2. Disconnect trailer battery ground cable. 3. Remove the lynch pin and detach the drop leg. 4. Position the drop leg beneath the coupler mounting hole with the foot on the ground. 5. Place the jack outer tube through the A-frame coupler hole and over the drop leg. 6. If the plunger pin kit is included, install it per instructions. 7. Attach the jack using three 3/8" bolts and nuts with lock washers and star washers, torqued to 15-20 ft-lbs. 8. Route the black wire lead along the trailer to the battery using cable ties. 9. Connect the wire lead directly to the positive (+) terminal of the battery. 10. Reconnect the battery ground cable. 11. Test operation by pressing EXT and RET switches and checking the LED light. 12. Reattach the drop leg using the lynch pin or plunger pin assembly. 13. Retract the jack completely.
Position the drop leg beneath the coupler mounting hole with the foot of the drop leg on the ground. The drop leg provides support and stability while you install the jack outer tube through the A-frame coupler hole.
The plunger pin kit is an optional assembly that may be included with the jack. If included, it must be installed before attaching the jack to the coupler. To install: align the grooves of the jack tube and plunger pin assembly, slide the assembly over the bottom of the jack tube, retract the plunger pin and slide the assembly onto the jack, verify the pin passes through both sides of the tube, install the drop leg, tighten the clamp to the jack and torque to 15-20 ft-lbs, and ensure the plunger pin and drop leg operate freely. After installation, reattach the jack to the trailer per the main installation instructions.
Torque the three 3/8" diameter, 1" long grade 5 bolts to 15-20 ft-lbs. Lock washers must be placed between the bolt head and the top of the jack mounting bracket. Star washers are used to ensure metal-to-metal contact between jack and coupler for proper grounding.
Torque the plunger pin kit clamp to 15-20 ft-lbs. After tightening, ensure the plunger pin and drop leg operate freely.
The mounting bolts are 3/8" diameter, 1" long, grade 5 bolts. Three bolts and nuts are provided with the jack.
Route the black wire lead from the plastic cover along the trailer to the battery using cable ties or equivalent. Connect the wire lead directly to the positive (+) terminal of the battery. The jack has a built-in circuit breaker which automatically trips and resets. After connecting, reconnect the battery ground cable.
The power wire is black. It runs from the plastic cover of the jack and must be routed along the trailer to the battery.
Yes. The jack has a built-in circuit breaker which automatically trips and resets. This protects the electrical system from overload.
The maximum rated capacity is not specified in the manual. You must refer to the stamped markings or decals on the product to obtain the rated capacity. If uncertain, contact Cequent Performance Products at 800-604-9466 or www.cequentperformanceproducts.com.
No. The operator and bystanders should never position any part of their body under or on the path of any portion of the jack or the load being supported or moved. This is a critical safety requirement.
No. Do not allow children to play on or around the jack or the load being supported or moved.
The jack is designed for vertical loading only. Excessive side forces may cause jack failure and must be avoided.
No. Never attempt to adjust the drop leg when there is any load on the jack. Always ensure the supplied pin is fully inserted through both sides of the inner tube and the drop tube before using the jack.
Yes. Secure the load, vehicle and trailer from rolling by blocking the wheels when operating the jack or coupling the trailer. This prevents accidental movement.
Check for proper installation by pressing the motor switch marked "EXT" to extend the jack and "RET" to retract the jack. Also check that the light switch turns on the LED light located under the top cover of the jack. After confirming proper operation, reattach the drop leg using the lynch pin or plunger pin assembly, and retract the jack completely.
The motor is sealed and maintenance-free. However, you must maintain the electrical system including the battery and charger (not included). Ensure all connections are tight and free of corrosion, and that the jack is properly grounded with the coupler (metal-to-metal contact). Make sure the battery is fully charged prior to use. Periodically check mounting hardware for proper torque and tighten if necessary. If necessary, wash with mild soap and water and rinse thoroughly. Do not direct a high-pressure spray at the jack. Periodically oil the pins of the plunger pin assembly.
Periodically check mounting hardware for proper torque and tighten if necessary. The manual does not specify an exact interval, but regular inspection is recommended to ensure safe operation.
Yes. Periodically oil the pins of the plunger pin assembly to maintain smooth operation.
No. Do not direct a high-pressure spray at the Powered A-Frame Jack. If necessary, wash with mild soap and water and rinse thoroughly.
Always replace bent, broken, or worn parts before using the jack. Do not attempt to operate the jack with damaged components.
The bubble level setup is only required once during initial setup. 1. Chock the trailer wheels. 2. Remove the three bubble level retaining ring screws. 3. Place the bubble level on a known flat surface. 4. Lower the trailer's levelling jacks (if equipped) and the Powered A-Frame jack to properly support and level the trailer using the bubble level as a guide. 5. Once level, return the bubble level to the jack and adjust the three retaining screws so the bubble is centred. After this initial setup, you can level your trailer in minutes by watching the bubble. No further adjustments are necessary.
The manual indicates the bubble level is optional equipment ("if equipped"). It is not clear whether it is included as standard or must be purchased separately. Contact Cequent Performance Products at 800-604-9466 or www.cequentperformanceproducts.com to confirm.
If electrical power is lost, you can still operate the jack manually. Remove the cap on top of the plastic cover and insert the manual override crank to raise or lower the jack.
To raise the trailer off the ball: 1. Ensure the battery is fully charged. 2. Chock the trailer wheels. 3. Open the coupler and push the "EXT" switch to extend the jack. Alternatively, you can use the drop leg to quickly extend the jack. 4. After adjusting the drop leg to the desired level, reattach the lynch pin or plunger pin assembly through both sides of the jack tube.
To lower the trailer onto the ball: 1. Push the "RET" switch to retract the jack. 2. After the coupler has fully engaged the ball, continue retracting the jack fully. 3. Be sure to close the coupler. 4. After full retraction, you may need to raise the drop leg. 5. Reattach the lynch pin or plunger pin assembly through both sides of the jack tube after adjusting the drop leg to the desired level.
To function the LED light, use the light switch labelled "ON" and "OFF". The LED light is located under the top cover of the jack.
The jack is designed to attach to the top surface of an A-frame coupler. The dual mounting pattern allows positioning either facing the tow vehicle or for side operation. Check for interference with weight distribution kits if equipped.
Included: three 3/8" grade 5 bolts and nuts, lock washers, star washers, manual override crank, and optional plunger pin kit. You must supply: trailer battery, charger, and cable ties.
Yes. Disconnect the trailer battery ground cable before installation to avoid electrical shock or damage. Reconnect after wiring is complete and tested.
Torque the three 3/8" diameter, 1" long grade 5 bolts to 15-20 ft-lbs. Use lock washers between bolt head and mounting bracket, and star washers for metal-to-metal grounding contact.
Route the black wire lead along the trailer using cable ties. Connect directly to the positive (+) terminal of the battery. The jack has a built-in circuit breaker. Reconnect the battery ground cable after connection.
Refer to the stamped markings or decals on the product. If uncertain, contact Cequent Performance Products at 800-604-9466 or www.cequentperformanceproducts.com.
Motor is sealed and maintenance-free. Maintain battery and charger (not included), keep connections tight and corrosion-free, ensure metal-to-metal grounding contact, keep battery fully charged, periodically check mounting hardware torque, oil plunger pin assembly pins, and wash with mild soap and water only (no high-pressure spray).
Press "EXT" to extend and "RET" to retract. Check that the light switch turns on the LED light under the top cover. After confirming operation, reattach the drop leg with the lynch pin or plunger pin assembly and retract the jack completely.
First, ensure the battery is fully charged prior to use. If the jack still does not operate, check that all electrical connections are tight and free of corrosion, and that the jack is properly grounded with the coupler (metal-to-metal contact). If electrical power is lost, you can manually operate the jack by removing the cap on top of the plastic cover and inserting the manual override crank to raise or lower the jack.
Check that the light switch is set to "ON". Verify that the battery is fully charged and that all electrical connections are tight and free of corrosion. If the light still does not work, there may be an electrical fault; contact Cequent Performance Products at 800-604-9466 or www.cequentperformanceproducts.com.
After tightening the plunger pin kit clamp to 15-20 ft-lbs, ensure the plunger pin and drop leg operate freely. If they do not, loosen the clamp slightly and verify that the pin passes through both sides of the tube. Retighten to 15-20 ft-lbs and recheck operation. If the problem persists, contact Cequent Performance Products.
Proper grounding requires metal-to-metal contact between the jack and coupler. Ensure that lock washers are placed between the bolt head and the top of the jack mounting bracket, and that star washers are used between the jack and coupler. Verify that all mounting bolts are torqued to 15-20 ft-lbs and that connections are tight and free of corrosion. If grounding is still poor, check that the battery ground cable is securely connected.
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