CHALLENGER LIFTS RJ7.5 Rolling Jack for 4-Post Lift (7,500 lbs)
- Authorized Online Dealer direct manufacturer relationship
- No Sales Tax outside PA where applicable
- Authorized Dealer Price Match verification required
- Fast Delivery some products may have lead times
- Manufacturer Warranty included with purchase
- Questions? +1 (855) 498-2147
Challenger RJ7.5 Rolling Jack - 7,500 lb Air/Hydraulic for 4-Post Lifts
The Challenger RJ7.5 is a 7,500 lb air/hydraulic rolling jack engineered for compatible 4-post lift runway channels, enabling wheels-free service while the vehicle remains positioned on the lift. Featuring adjustable width accommodation (33" to 41"), low-profile minimum height (3-3/8"), and two-hand operational controls for safe, repeatable lifting in professional brake, tire, and suspension service workflows.
Key Features & Benefits
Air/Hydraulic Dual-System Operation
The RJ7.5 combines compressed air and hydraulic pressure for smooth, controlled lifting without manual pumping effort. This air-over-hydraulic design enables repeatable cycles at shop operating pressures, delivering consistent performance across multiple service operations without operator fatigue.
Professional service workflows demand efficiency when technicians rotate multiple vehicles through brake, tire, and suspension tasks. Traditional manually-pumped rolling jacks require significant physical exertion with each lift cycle, slowing production and increasing fatigue-related errors.
This enables faster work cycles and consistent lifting performance throughout the service day. The pneumatic actuation provides smooth pressure control without jarring movements, supporting precision positioning when wheels-free service is critical.
Adjustable Width Range 33" to 41"
The RJ7.5 features adjustable width accommodation spanning 33 inches to 41 inches, enabling fitment across varying runway rail channel spacings within compatible Challenger 4-post lift platforms. Width adjustment components are integrated into the frame, allowing quick adaptation to different lift installations without adapter purchases.
Runway channel spacing varies across lift series and even between individual installations depending on lift configuration. Traditional fixed-width rolling jacks either fit perfectly on some lifts but require expensive adapter sets on others, or don't fit at all.
This eliminates fitment uncertainty and reduces accessory costs. Technicians can position the jack securely within the runway channels of your specific lift without guesswork, improving stability and safety during wheels-free service operations.
Low-Profile 3-3/8" Minimum Height
The RJ7.5 achieves a 3-3/8 inch minimum lowered height, supporting drive-over clearance on a 4-post lift when staging the jack before raising wheels-free. This low profile accommodates lower vehicle ride heights including sports cars, sedans, and modified vehicles that would contact jacks with higher minimum heights.
Service facilities working on diverse vehicle types encounter constantly changing clearance constraints. High-profile rolling jacks (4 to 5 inch minimum heights) prevent installation on lowered or performance vehicles, requiring staff to manually position the jack differently or use alternative equipment, disrupting shop workflow.
This maximizes your equipment's compatibility across vehicle classes. The low-profile design enables consistent wheel-removal procedures regardless of vehicle suspension height, supporting professional scheduling and reducing setup time per service operation.
Height Range 3-3/8" to 13-1/4" (Expandable)
The jack delivers a height adjustment range of 3-3/8 inches minimum to 13-1/4 inches maximum, covering most wheel-removal scenarios without additional adapters. This range accommodates typical undercarriage access requirements when wheels are lifted wheels-free while the vehicle remains supported on the 4-post lift runways.
Different service operations require varying lifting heights: tire rotations need minimal clearance, while transmission removal or brake service on lifted vehicles may demand additional height. Rolling jacks with limited height ranges force technicians to supplement with additional equipment or perform operations in suboptimal positions.
This simplifies shop equipment management and reduces accessory dependencies. Single-jack workflows become more viable when height flexibility is built into the platform, enabling technicians to adapt to task requirements without equipment changes.
Two-Hand Operation Safety Control
The RJ7.5 incorporates two-hand operation control, requiring simultaneous engagement of both control levers to initiate lifting. This mechanical safety feature prevents unintended single-hand activation and adds a procedural safeguard when multiple technicians work in adjacent bays or when equipment is temporarily unattended.
Single-hand controls on rolling jacks create safety exposure in fast-paced shop environments where technicians reach across the unit, bump controls accidentally, or when bystanders brush against control levers. Industry-wide challenge: preventing accidental lift activation without restricting normal operation speed.
This reduces unintended movement incidents and reinforces procedural discipline. Two-hand controls add a protective delay that catches operator errors before wheels-free service operations commence, improving the overall safety posture in your facility.
Wheels-Free Service on 4-Post Lifts
The RJ7.5 is purpose-engineered to operate within 4-post lift runway channels, enabling wheels-free service workflows where the vehicle remains secured on the main lift while this rolling jack lifts each wheel set independently. This design supports brake service, tire rotation, suspension inspection, and wheel removal operations performed on professional 4-post lifts.
Wheels-free service is a core professional shop workflow—it accelerates tire rotations, enables brake service without wheel reinstallation, and allows suspension work on one axle while the vehicle remains stabilized on the main lift. Many rolling jacks are standalone units that don't integrate efficiently with 4-post lift runway systems.
This enables seamless workflow integration with your existing 4-post lift investment. The RJ7.5 becomes part of your professional lift system, not an add-on accessory, improving service efficiency and technician productivity during multi-step wheel and undercarriage operations.
Product Demonstration
Applications & Use Cases
- Professional Tire Service: Tire rotation, repair, and removal workflows performed wheels-free while vehicle remains secured on the main 4-post lift.
- Brake Service & Maintenance: Brake pad replacement, rotor service, and hydraulic system work on each axle independently without wheel reinstallation between sides.
- Suspension Inspection & Service: Suspension component access, strut replacement, and alignment work requiring wheels-free positioning.
- Fleet Maintenance Operations: High-volume service facilities processing multiple vehicles requiring consistent wheel removal procedures across diverse vehicle types.
- Light-Duty Truck & SUV Service: Compatible with trucks, SUVs, and heavier vehicles up to 7,500 lb per jack within compatible 4-post lift systems.
Technical Specifications
| Specification | Value |
|---|---|
| Maximum Capacity | 7,500 lb |
| Operation Type | Air/Hydraulic (air-over-hydraulic) |
| Width Range | 33" to 41" |
| Height Range (Minimum to Maximum) | 3-3/8" to 13-1/4" |
| Shipping Weight | Approximately 375 lb |
| Control Method | Two-hand operation |
Installation Requirements
Lift Compatibility
- Compatible Lift Series: Challenger 4-post lifts with runway/accessory rail channels, including 4P14 and 4015 series platforms.
- Rail Channel Type: Verify your lift features standard runway channels designed to accept rolling jack units. Confirm runway channel spacing with your lift model documentation before ordering.
- Installation: Position jack within runway channels and secure according to lift manufacturer guidelines. No permanent mounting required.
Compressed Air System
- Air Supply Required: Jack operates from shop compressed air system.
- Air Line Kit: Separate air line connection kit typically required to complete pneumatic connection to shop air manifold. Verify inclusion with your purchase package or contact sales for current air line kit specifications.
- Operating Pressure: Confirm operating pressure specifications in the manufacturer installation and operation manual for your specific unit to ensure compatibility with your shop air system.
Installation Notes
- Professional Installation: Installation should be performed by qualified technicians familiar with lift systems and pneumatic equipment operation.
- Safety Documentation: Review complete installation, operation, and maintenance manual before deployment. Familiarize all operators with two-hand control procedures and maximum capacity guidelines.
- Setup Verification: Confirm runway channel alignment, air pressure settings, and operational safety controls before performing wheels-free service operations.
Shipping & Delivery
Freight Coverage
Shipping: Ships via freight (LTL) due to equipment weight and form factor. Delivery is available throughout the 48 contiguous United States.
Delivery Timeframe: Approximately 5-10 business days from order placement (subject to inventory and freight carrier availability).
Delivery Requirements
Equipment Required: Forklift or pallet jack with minimum 400 lb capacity for unloading. Standard freight delivery provides curbside drop-off or inside delivery (verify delivery option at checkout).
Receiving: Inspect all packaging before signing bill of lading. Note any visible damage on the freight bill of lading before driver departure to protect concealed damage claims.
Damage Reporting
Within 15 days: Report concealed damage and receive replacement parts and freight reimbursement.
Within 30 days: Report damage claims with cost-sharing eligibility (shared freight responsibility after 15-day window).
After 30 days: Damage claims no longer covered by freight carrier protection.
Warranty Coverage
Manufacturer Limited Warranty
The Challenger RJ7.5 is covered under a manufacturer-backed limited warranty. Specific coverage terms, duration, and exclusions should be confirmed with the dealer at point of purchase or in the product documentation provided with your unit.
Warranty Requirements
Registration: Confirm any registration requirements with your dealer to activate warranty coverage.
Installation & Operation: Warranty coverage applies to equipment installed and operated according to the manufacturer installation, operation, and maintenance manual.
Support: Contact Garage Supply Guys for warranty questions, claim procedures, and coverage details specific to your purchase.
Ready to Add Wheels-Free Service Capability?
Get expert guidance on the Challenger RJ7.5 rolling jack and compatibility with your 4-post lift system. Our team can help with product verification, air line kit specifications, and installation planning.
Frequently Asked Questions
What is the RJ7.5 maximum weight capacity?
The Challenger RJ7.5 has a 7,500 lb maximum capacity per jack, supporting wheels-free service on compatible 4-post lifts for light-duty trucks, SUVs, and heavy sedans within this weight class per axle.
Does the RJ7.5 fit all Challenger 4-post lifts?
The RJ7.5 is compatible with Challenger 4-post lifts featuring runway/accessory rail channels, including the 4P14 and 4015 series. Verify your specific lift model has compatible runway channels and confirm runway channel spacing matches the adjustable width range (33" to 41") before ordering.
What height range does the RJ7.5 provide?
The RJ7.5 offers a height adjustment range from 3-3/8 inches minimum (lowered position) to 13-1/4 inches maximum (fully raised). This range supports most wheel-removal and undercarriage service operations without requiring additional height adapters for typical applications.
Is a compressed air supply required for the RJ7.5?
Yes, the RJ7.5 operates on compressed air from your shop air system. An air line connection kit is typically required to complete the pneumatic connection to your shop air manifold. Confirm air line kit inclusion with your purchase or contact sales for current kit specifications.
What does two-hand operation mean?
The RJ7.5 features two-hand controls that require simultaneous engagement of both control levers to initiate lifting. This safety feature prevents accidental single-hand activation and adds a procedural safeguard in professional shop environments.
What are the typical uses for a rolling jack on a 4-post lift?
The RJ7.5 supports wheels-free service workflows including tire rotation, tire repair and removal, brake service, and suspension inspection—all while the vehicle remains secured on the main 4-post lift. Technicians lift each wheel set independently without dismounting the vehicle.
How much does the RJ7.5 weigh for shipping?
The Challenger RJ7.5 has a shipping weight of approximately 375 lb, which requires freight (LTL) delivery. Plan for forklift or pallet jack unloading at your facility.
What warranty coverage is included with the RJ7.5?
The RJ7.5 is covered under a manufacturer-backed limited warranty. Specific coverage terms, duration, and exclusions should be confirmed with your dealer at purchase or in the documentation provided with your unit. Contact Garage Supply Guys for detailed warranty information.
About the Brand