AMP Research PowerStep™ | Automatic Electric Running Boards | 2019–2026 Ram 2500/3500 Gas | SKU: 76243-01A

Brand: AMP Research | SKU: 76243-01A | Material: Die-Cast Aluminum (Anodized & PTFE Coated) | Application: Automatic Electric Deploy | Engine Compatibility: Gas Only (NOT Cummins Diesel) | Free Shipping, Lower 48 | Affirm & Afterpay Available

You Run a Ram HD That Demands More Than Factory Steps.

Factory rocker panels on fourth and fifth-generation Ram 2500 and 3500 trucks sit an punishing 18–20 inches off the pavement. Whether your heavy-duty rig operates in Low-Desert heat corridors where summer asphalt temperatures blast past 150°F, or Frozen-Tundra conditions where sub-zero weather snaps cheap electronics, cab entry is an exhausting daily climb. Commercial service operators, fleet contractors, and utility professionals compound this physical strain dozens of times a day loading tools and accessing heavy gear.

Traditional stationary running boards permanently rob your heavy-duty rig of nearly eight inches of true ground clearance, acting as a permanent lower body trail obstacle. Worse yet, stationary steps act like a collection funnel, tracking mud, slick winter slush, and deep gravel directly onto your work boots.

Cheap imitation electric steps fail under real work loads. Low-grade step motors lag under weight, freeze solid when winter road brine seeps into unshielded pivot links, and split along plastic component seams during extreme temperature swings.

The AMP Research PowerStep (SKU: 76243-01A) is the permanent, industrial-grade solution. Engineered exclusively for 2019–2026 Ram 2500 and 3500 SRW gas-engine trucks, this system features smart, weather-sealed electric motors that instantly drop a full-length, high-traction step down 8 inches when a door swings open. On door closure, the step retracts completely flush beneath the rocker panels—protecting the mechanical linkages, maximizing aerodynamics, and maintaining your underbody ground clearance.

The Obsidian Take

Engineering for Ram HD's Extreme Operating Envelope

The Ram 2500 and 3500 truck platforms present unique thermal and mechanical challenges under underbody frames. The 76243-01A is an ultra-specific, high-demand kit geometrically mapped to match the precise rocker profiles, body mount stampings, and electrical configurations unique to the modern heavy-duty gas Ram platform.

Low-Desert Durability: Anodized Aluminum + PTFE Finish

In high-heat regions, intense UV exposure chalks, fades, and warps budget steps within a single season. These premium steps are crafted from high-tensile die-cast aluminum coated in a military-grade Type III anodized finish and a PTFE non-stick corrosion shield. Anodizing creates a permanent oxide barrier that becomes part of the metallurgy itself, resisting rock chips and salt pitting. The embedded PTFE layer ensures non-slip traction on freezing mornings and prevents road tar or liquid mud from sticking to the tread.

The Motor: Single Per Side, Weather-Sealed

Driven by a single weather-sealed high-torque electric motor per side, the control module reads door switches directly through the vehicle's computer network and drops both boards fluidly in approximately 1 to 1.5 seconds. Unlike manual steps that add 30 seconds of physical strain per stop, this system is rated for an unyielding 600 lbs per side static load capacity—safely supporting a 250-lb contractor plus heavy job site equipment without flex or binding.

Gas-Engine Specific Harness (Diesel Incompatible)

The wiring infrastructure of this kit is engineered exclusively for gas-powered Ram heavy-duty platforms. The underlying 12V electrical routing and digital door-trigger network are mapped to interface cleanly with the gas firewall layout. Cummins 6.7L diesel-equipped models feature a completely separate engine bay battery configuration and require an entirely different, diesel-specific PowerStep wiring architecture.

⚠️ CRITICAL COMPATIBILITY WARNINGS — Read Before Ordering

• [LOCKOUT 1 — GAS ENGINE ONLY]: This kit is engineered exclusively for gas-engine Ram 2500 and 3500 trucks (6.4L HEMI / 5.7L Hemi configurations). If you own a Cummins 6.7L Turbo Diesel, this harness will not handshake with your battery routing or gateway lines. Cummins models require a separate diesel-specific PowerStep kit.

• [LOCKOUT 2 — RAM 1500 HALF-TON EXCLUSION]: This kit fits heavy-duty models only. Ram 1500 half-ton models utilize completely separate chassis architecture, tighter rocker geometries, and different electrical modules. Ram 1500 trucks are entirely incompatible.

• [LOCKOUT 3 — Single Rear Wheel (SRW) ONLY]: This part number is tailored specifically for Single Rear Wheel axles. It is NOT compatible with 3500 DRW (Dually) configurations, as the lateral flare profile of wide dually fenders conflicts with the step’s standard retraction path.

• [LOCKOUT 4 — ACCESS HARDWARE CONFLICTS]: The PowerStep linkage arms occupy the factory underbody tracks directly along the body seams. This system is completely incompatible with frame-mounted rock sliders, body-mounted nerf bars, or extended custom fender flares that cross into the step traveling arc. All existing side steps must be fully unbolted.

• [LOCKOUT 5 — BODY LIFT RESTRICTIONS]: Suspension lift kits (2 to 6 inches) do not affect installation footprint because the rocker panels move naturally with the cab. However, body lifts greater than 3 inches shift the vertical plane between the cab floor and the ground line, modifying the step's ultimate drop geometry.

Confirmed Fitment (OFAS Standard)

• [Platform Note]: This kit interfaces purely with modern gas-engine heavy-duty electrical layouts. Cummins diesel platforms use separate engine bay routings and are entirely locked out.

• [Cab Configuration Note]: Fits all cab door styles (Regular, Quad, Mega Cab) on verified T1 HD configurations.

• [Axle Note]: Single Rear Wheel (SRW) only. Dual Rear Wheel (DRW/Dually) setups will experience motor binding on retraction.

Technical Specifications

Before You Order — 4 Fitment Checkpoints

1. Engine Block Validation (CRITICAL): Pop your hood. You must have a gas engine (6.4L HEMI / 5.7L Hemi layout). If you see a 6.7L Cummins Turbo Diesel engine block or possess Cummins side-badge emblems, do not buy this kit. The wiring harness will not plug into your electrical gateway.

2. Axle & Half-Ton Review: Walk to the rear axle of your truck. Ensure your rig is a Single Rear Wheel (SRW) setup with one rear tire per side. If you own a 3500 Dually (DRW) or a half-ton Ram 1500 model, you are locked out of this SKU.

3. Underbody Side Armor Check: Look beneath your rocker panels. Any existing frame-mounted rock sliders, body nerf bars, or step bars must be completely unbolted and removed prior to unboxing. The PowerStep deployment brackets require clean, exclusive access to those factory body tracks.

4. Suspension vs. Body Lifts: Suspension lifts up to 6 inches are fully compatible because the rocker panel moves naturally with the body bushings. If you run an aggressive body lift greater than 3 inches, the altered vertical plane between the cab floor and ground may shorten the effective step reach.

Professional Installation & Mechanical Notes

Main Power Routing Strategy

Unlike low-draw under-dash accessories, this high-torque motor harness requires a dedicated heavy-gauge circuit routed completely through the firewall grommet directly to the primary engine bay battery terminals via an integrated 30-amp fused inline trunk. Under-dash circuit tracks cannot deliver the sustained 15-amp draw the step motors require during simultaneous deployment.

• Step 1: Locate your positive battery terminal in the engine bay and route the provided 10-gauge red insulated wire through the main firewall grommet.

• Step 2: Feed the wire paths into the cabin interior and connect directly to the main PowerStep harness using the provided marine-grade heat-shrink terminal blocks. Connect the primary 10-gauge black ground wire to an unpainted, bare metal chassis frame point.

• Step 3: Connect the plug-and-play pass-through wiring links directly to your factory door latch connectors inside the doors. Test the system prior to final bracket torque to ensure smooth motor cycling (~1 to 1.5 seconds). Weak battery voltage (<11.2V) will slow deployment speed and stress internal gears.

Rocker Panel Mounting & Fastener Torque

The step brackets mount entirely to the body rocker panel tracks using the factory reinforcement locations.

• Step 1: Align the heavy aluminum brackets against the pre-drilled rocker holes and install all fasteners loosely hand-tight.

• Step 2: Manually cycle the linkage arms 3–4 times without power hooked up to verify a smooth traveling arc with zero bind or friction scrape.

• Step 3: Torque all mounting hardware in a diagonal cross pattern to exact AMP factory specifications using a calibrated torque wrench. Never over-torque, or you risk twisting the bracket tracks and causing premature motor strain.

• Pro Tip: On the driver side underbody routing, NEVER zip-tie the wire harness to the factory brake lines. Secure all lines at least 2 inches away from moving or vibrating fluid components.

AMP RESEARCH POLICY NOTE: Due to the vehicle-specific software programming loaded into the plug-and-play diagnostic gateway box, once this wiring network has been connected to vehicle power, the system is non-returnable. Double-check all vehicle configurations prior to unboxing electrical sub-assemblies.

Questions We Get Asked

How do the running boards know exactly when to deploy and retract? The system includes a plug-and-play door-trigger harness that interfaces directly with your OEM door latch connectors inside the door panels. It reads the digital door open and close signals directly from your truck's onboard computer network and instantly routes 12V power to the weather-sealed step motors. Both sides deploy simultaneously when any door opens.

What is the functional difference between this standard PowerStep and the PowerStep XL? The standard PowerStep (this kit) drops 8 inches below the rocker panels and retracts completely hidden and flush beneath the lower body lines for a clean OEM look. The PowerStep XL integrates a permanent structural rocker guard housing, and the step drops an additional 2 to 3 inches lower, making it ideal for highly lifted heavy-duty trucks.

Will an aftermarket suspension lift kit interfere with the step linkages? No. Because the mounting links anchor directly to the rocker panel sheet metal rather than the frame rails, suspension lifts between 2 and 6 inches have zero effect on installation geometry. However, body lifts greater than 3 inches space the cab plane away from the frame, altering ground clearance.

Why is this premium system worth the investment over cheap drop steps? Manual steps add massive physical strain on lifted trucks and ruin ground clearance. Cheap electronic knockoffs use unsealed motor gears that seize in cold weather and generic wire-taps that corrode, causing CAN-bus dashboard faults. The AMP design uses military-grade anodized aluminum with a non-stick PTFE shield and a clean OBD-II interface that preserves your factory warranty.

Why Buy From Obsidian Forged Auto Supply

• Authorized AMP Research Dealer — Full manufacturer warranty validation (5-year motor, 3-year finish) with factory-direct tracking.

• Free Shipping, Lower 48 — Rapid large-parcel ground delivery shipped directly from our closest regional distribution warehouse.

• Real Fitment Verification — Text (469) 407-7538 (SMS only) with your Ram truck’s VIN, engine type, and axle layout. An Obsidian specialist will audit your factory build sheet for a 100% certified fit confirmation before shipping.

• Premium Financing Available — Safe, secure checkout flexibility via Affirm and Afterpay on qualifying orders.

Disclaimer

The technical and product information presented above is compiled from data provided directly by the component manufacturer. Obsidian Forged Auto Supply maintains a rigorous engineering audit workflow to ensure vehicle fitment compatibility; however, we are not responsible or liable for sudden manufacturer-driven specification updates, raw metadata changes, or accuracy discrepancies in the foundational data sheets provided by the manufacturer.

2019–2026 Ram 2500 & 3500 SRW Gas Models. Regular, Quad, and Mega Cabs. Eliminate the heavy entry climb. Add to cart.

Unsure if your heavy-duty Ram's exact engine block configuration, custom trim line, or negative wheel offset will clear this automatic step geometry? Text your build specs to (469) 407-7538 and an Obsidian technician will verify it.