AMP Research PowerStep Xtreme | Dual-Motor Electric Running Boards | 2018-2024 Ram 1500/2500/3500 | SKU 78239-01A
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Before ordering, verify your vehicle details, current setup, and SKU with OFAS fitment support so your upgrade matches your build.
Shipping & Delivery
Free shipping is available within the lower 48 U.S. states. Large or heavy items may ship by freight, and delivery timing can vary by warehouse, carrier, and product availability.
Fitment, Shipping & Product Support
The AMP Research PowerStep Xtreme (SKU 78239-01A) is the dual-motor electric retractable running board system for the 2018–2024 Ram 1500, 1500 Classic, 2500, and 3500. Dual independent motors per side drive the deploy/retract mechanism for added power in extreme conditions — sub-zero winters, mud-caked rockers, heavy road salt. Die-cast aluminum construction with PTFE corrosion-resistant coating. Integrated LED courtesy step lights. Plug-and-play harness connects to the vehicle's OBD-II port on applicable model years. 5-year / 60,000-mile warranty.
Excludes Mega Cab with Air Ride. Installation may require drilling small holes per AMP Research's own installation documentation.
Component Specifications
| Spec | Detail |
|---|---|
| SKU / Part Number | 78239-01A |
| Brand | AMP Research |
| Product Line | PowerStep Xtreme |
| Motor Configuration | Dual independent motors per side |
| Construction | Die-cast aluminum |
| Finish | Powder-coated, PTFE corrosion-resistant coating |
| Hinge Pins / Hardware | Stainless steel |
| Step Width | 6 inches — cab-length |
| Step Surface | Textured, slip-resistant |
| Courtesy Lighting | Integrated low-profile LED step lights |
| Wiring | Plug-and-play — connects to OBD-II port on applicable models |
| Warranty | 5-year / 60,000-mile |
| Installation | Vehicle-specific guide, mount kit included — may require drilling small holes |
| Country of Origin | United States |
| Sold As | Pair (driver and passenger) |
What Is and Is NOT Included
| Item | Included |
|---|---|
| Driver and passenger side step assemblies | ✓ |
| Plug-and-play wiring module | ✓ |
| Integrated LED courtesy lights | ✓ |
| Mount kit and hardware | ✓ |
| Vehicle-specific installation guide | ✓ |
Verified Fitment
| Vehicle | Years | Cab Configuration | Status |
|---|---|---|---|
| Ram 1500 (DT) | 2018–2024 | All cabs except Mega Cab w/ Air Ride | ✓ |
| Ram 1500 Classic (DS) | 2019–2024 | All cabs except Mega Cab w/ Air Ride | ✓ |
| Ram 2500/3500 | 2018–2024 | Gas & Cummins Diesel — all cabs except Mega Cab w/ Air Ride | ✓ |
| Ram trucks — Mega Cab with Air Ride | 2018–2024 | Any | ✗ Excluded |
| Ram trucks | 2017 and older | Any | ✗ Does not fit — different body control module and door-trigger wiring architecture |
Critical Compatibility
| Configuration | Notes |
|---|---|
| Mega Cab with Air Ride | Does not fit |
| 2017 or older Ram trucks | Does not fit — wiring and body control module incompatible |
| Aftermarket rock sliders, body-mounted step bars, or extended rocker flares | May interfere with factory rocker mounting points and step deployment arc — verify clearance before ordering |
| Aggressive negative wheel offset or oversized tires | Verify front tire clearance against forward linkage arms through full steering lock-to-lock before ordering |
Common Questions
Does this fit a Mega Cab?
Not with air ride suspension. Confirm directly before ordering if your Mega Cab does not have air ride.
Does installation require drilling?
Possibly. AMP Research's own installation documentation notes installation may require drilling small holes. Confirm with the specific installation guide for your cab configuration before assuming a drill-free install.
Does the harness really plug into the OBD-II port?
Yes, on applicable model years. The plug-and-play harness connects directly to the OBD-II port on newer models, simplifying installation without splicing into factory wiring.
What is the real difference between PowerStep Xtreme and standard PowerStep?
Dual independent motors per side instead of a single motor. The Xtreme is built for extreme climates — sub-zero cold, heavy mud, road salt — where a single motor and slave linkage are more prone to binding or burning out.
The Obsidian Take
The PowerStep Xtreme (78239-01A) is for the 2018–2024 Ram 1500/2500/3500 owner in harsh climates who wants the redundancy of dual motors over the standard single-motor PowerStep. Die-cast aluminum, PTFE coating, integrated LED lighting, OBD-II plug-and-play wiring on applicable years, 5-year/60,000-mile warranty.
Two things to confirm before ordering. First — your Ram is not a Mega Cab with air ride. Second — if running aggressive negative offset wheels or oversized tires, verify front tire clearance against the linkage arms through full steering lock before ordering.
Non-Returnable Notice: Once connected to vehicle power, this electronic plug-and-play system cannot be returned per AMP Research policy. Confirm all fitment metrics before opening electrical components.
Manufacturer Data Disclaimer: Specifications sourced from AMP Research and authorized distributor documentation. Obsidian Forged Auto Supply is an authorized AMP Research dealer. Verify final fitment against your VIN, cab configuration, and air ride status before ordering. Manufacturer specifications are subject to change without notice.