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Restore Precision Deployment on Your AMP Research Xtreme PowerStep System
The AMP Research 19-04279-XTA is the Xtreme Type A Revision 6 replacement controller for PowerStep Xtreme automatic running board systems. This 19-04279-XTA unit is engineered specifically for Xtreme PowerStep applications and supersedes the older Xtreme A-series controllers, restoring smooth and reliable automatic step deployment triggered by the door signal. Unlike the Standard Type controllers, the 19-04279-XTA is designed for the higher-demand Xtreme system electronics and is not interchangeable with standard Type A or Type B units. An additional plug is included for the optional toggle switch (compatible with 79106-01A), allowing manual override of step deployment. This is a genuine AMP Research component, designed and engineered in Brea, CA, USA to the same specifications as the original factory-installed 19-04279-XTA controller.
Key Features
- Xtreme Type A Revision 6 replacement controller for AMP Research PowerStep Xtreme systems
- Supersedes older Xtreme A-series controllers for a direct plug-and-play replacement
- Dedicated port for the optional override toggle switch (79106-01A)
- Broad fitment spanning Chevrolet, Ford, GMC, Jeep, Ram, Toyota from 2007 to 2023
- Genuine AMP Research certified replacement component
- Designed and engineered in Brea, CA, USA
- Limited lifetime warranty
- Weather-resistant construction for underbody exposure
- Not compatible with Standard PowerStep modules 75141-01A or 75134-01A
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2014-2023 | Chevrolet | Silverado 1500 | Custom, Custom Trail Boss, High Country, LS, LT, LT Trail Boss, LTZ, PPV, RST, SSV, WT, ZR2 |
| 2015-2023 | Chevrolet | Silverado 2500 HD | Custom, High Country, LT, LTZ, WT |
| 2015-2023 | Chevrolet | Silverado 3500 HD | High Country, LT, LTZ, WT |
| 2021-2023 | Ford | Bronco | Badlands, Base, Big Bend, Black Diamond, Everglades, First Edition, Heritage Edition, Outer Banks, Raptor, Wildtrak |
| 2018-2020 | Ford | Expedition | King Ranch, Limited, Max King Ranch, Max Limited, Max Platinum, Max XLT, Platinum, SSV, XL, XLT |
| 2015-2023 | Ford | F-150 | King Ranch, Lariat, Limited, Platinum, Police Responder, Raptor, SSV, Tremor, XL, XLT |
| 2008-2022 | Ford | F-250 Super Duty | Harley-Davidson Edition, King Ranch, Lariat, Limited, Platinum, XL, XLT |
| 2008-2022 | Ford | F-350 Super Duty | Harley-Davidson Edition, King Ranch, Lariat, Limited, Platinum, XL, XLT |
| 2015-2019 | Ford | Transit-150 / 250 / 350 / 350 HD | Base, XL, XLT |
| 2021 | Ford | Transit Connect | Titanium, XL, XLT |
| 2014-2023 | GMC | Sierra 1500 | AT4, AT4X, Base, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT |
| 2015-2023 | GMC | Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT |
| 2015-2023 | GMC | Sierra 3500 HD | AT4, Base, Denali, Pro, SLE, SLT |
| 2020-2023 | Jeep | Gladiator | High Altitude, Mojave, Overland, Rubicon, Sport, Sport S, Willys, Willys Sport |
| 2007-2018 | Jeep | Wrangler / Wrangler JK | Rubicon, Sahara, Sport, Sport S, Unlimited Rubicon, Unlimited Sahara, Unlimited Sport, X |
| 2019-2022 | Ram | 1500 | Big Horn, HFE, Laramie, Laramie Longhorn, Limited, Limited Longhorn, Lone Star, Rebel, Tradesman, TRX |
| 2019-2022 | Ram | 1500 Classic | Express, SLT, Special Service, Tradesman, Warlock |
| 2013-2021 | Ram | 2500 | Big Horn, Laramie, Laramie Limited, Laramie Longhorn, Limited, Lone Star, Outdoorsman, Power Wagon, SLT, Tradesman |
| 2013-2021 | Ram | 3500 | Big Horn, Laramie, Laramie Limited, Laramie Longhorn, Limited, Lone Star, SLT, Tradesman |
| 2007-2017 | Toyota | Tundra | 1794 Edition, Base, Limited, Platinum, SR, SR5, TRD Pro |
Specifications
| Detail | Value |
|---|---|
| Part Number | 19-04279-XTA |
| SKU | AMP19-04279-XTA |
| UPC | Not Available |
| Type | Xtreme Type A Revision 6 Replacement Controller |
| Color | Black |
| Weight | 0.7 lbs |
| Dimensions | 7.25"W x 0.75"H x 10"L |
| Country of Origin | USA (Brea, CA) |
| Warranty | Limited Lifetime |
| Quantity | 1 Controller |
What's Included
- 1 x AMP Research 19-04279-XTA Xtreme Type A Revision 6 PowerStep controller
Related Parts on Our Site
- 79106-01A — Override Toggle Switch (optional switch, plugs directly into this controller)
- 79107-01A — Override Switch with STB1 Controller
- 75131-01A — PowerStep LED Light Kit
- 19-04280-STA — Replacement Controller Standard Type A
- 19-04280-STB — Replacement Controller Standard Type B
- 19-04361-90 — B05 to STB Pigtail Adapter
About AMP Research
AMP Research invented the automatic power running board and has remained the industry leader in retractable step technology for trucks and SUVs. Every AMP Research component is designed and engineered in Brea, CA, USA using military-grade materials and tested to withstand years of underbody exposure, vibration, and daily use. The 19-04279-XTA controller carries the same limited lifetime warranty as AMP Research's complete PowerStep Xtreme systems.
Frequently Asked Questions
What is the AMP Research 19-04279-XTA?The AMP Research 19-04279-XTA is the Xtreme Type A Revision 6 replacement controller for AMP Research PowerStep Xtreme automatic running board systems. It is a genuine certified replacement part that supersedes older Xtreme A-series controllers and restores full automatic deployment and retraction functionality across a wide range of trucks, SUVs, and off-road vehicles from 2007 to 2023.
Is the 19-04279-XTA compatible with standard PowerStep systems?No. The 19-04279-XTA is engineered specifically for PowerStep Xtreme applications. It is not compatible with standard PowerStep modules 75141-01A or 75134-01A, and should not be used to replace standard Type A or Type B controllers. Always confirm your PowerStep kit number before ordering.
Can I add an override toggle switch with this controller?Yes. The 19-04279-XTA includes a dedicated port for the optional AMP Research override toggle switch (79106-01A), which allows manual control of step deployment independently from the door trigger signal.
Does this controller fit the 2022 Ram 1500 TRX?Yes, provided the 2022 Ram 1500 TRX is equipped with an AMP Research PowerStep Xtreme running board system. Compatibility is based on the installed PowerStep Xtreme kit, not the vehicle alone. Verify your PowerStep kit number before purchasing.
Does the 19-04279-XTA work on the Jeep Wrangler JK?Yes, for the 2018 Jeep Wrangler JK in Rubicon, Sahara, Sport, and Sport S trims, as well as the corresponding Unlimited versions. The 19-04279-XTA also covers the standard Jeep Wrangler from 2007 to 2018 across multiple trim levels.
What is the difference between the XTA and the STA controller?The 19-04279-XTA is designed for PowerStep Xtreme systems, which use different electronics than the standard PowerStep platform. The 19-04280-STA Standard Type A controller is for standard PowerStep applications and replaces A-04 and A-06 controllers. The two units use different connectors and are not interchangeable.
Is this covered by a warranty?Yes. The 19-04279-XTA is covered by AMP Research's limited lifetime warranty against defects in materials and workmanship when used as intended on a compatible PowerStep Xtreme system.
Where is the 19-04279-XTA manufactured?The 19-04279-XTA is designed and engineered in Brea, California, USA. AMP Research uses military-grade materials and rigorous testing standards for all certified replacement components.
Installation Instructions
- Locate the existing PowerStep Xtreme controller mounted in the engine bay or behind the front fascia.
- Disconnect the vehicle battery negative terminal before handling any electrical connections.
- Unplug the existing Xtreme A-series controller harness connectors.
- Connect the new 19-04279-XTA controller to the harness connectors until each plug clicks into place.
- If installing an override switch (79106-01A), connect its harness lead to the dedicated port on the controller.
- Mount the controller in the factory location using the original hardware.
- Reconnect the battery and test step deployment by opening each door to confirm proper operation.
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
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