733931Lippert SolidStep 3.0 26-inch double-step assemblyView product
Lippert SolidStep 3.0 RV Step Parts Diagram and Model Size Chart
Lippert SolidStep 3.0 is a manually folding, ground-supported RV entry staircase. The steps lift into the doorway for travel and have adjustable lower legs for uneven ground. Use the model chart and original assembly illustration to identify the correct two-, three- or four-step version before choosing replacement hardware.
All six listed assemblies have a 400 lb rated capacity. The best replacement depends on two measurements: doorway width, measured between the inner frame edges, and entry height from ground to threshold when the trailer is positioned for normal use.
SolidStep 3.0 model and size chart
The 26-inch and 30-inch designations describe the step size family, not an instruction to measure the outside width of a tread. Measure the actual doorway and entry height before selecting a part number.
| Lippert MPN | Steps | Size family | Entry height | Door frame width |
|---|---|---|---|---|
| 733931 | Double | 26-inch | 22–28 in | 25–28.9 in |
| 733932 | Double | 30-inch | 22–28 in | 29–36 in |
| 791572 | Triple | 26-inch | 27–36 in | 25–28.9 in |
| 791573 | Triple | 30-inch | 27–36 in | 29–36 in |
| 791574 | Quad | 26-inch | 35–44 in | 25–28.9 in |
| 791575 | Quad | 30-inch | 35–44 in | 29–36 in |
Choose 733931 or 733932 for a double step; 791572 or 791573 for a triple; and 791574 or 791575 for a four-step assembly. The narrower and wider doorway versions are different products.
Lippert SolidStep 3.0 assembly illustration
The original manufacturer drawing identifies the upper tread, lower treads, transport lock and plunger bolt. Those are useful places to begin when identifying a damaged latch or other step component.
SolidStep 3.0 step parts and component identification
Lippert's numbered component reference identifies these service items. Match the step's identification tag and the applicable diagram revision before replacing a smaller component.
| Component | Lippert part # | What to check |
|---|---|---|
| Low-profile plunger bolt | 436574 | Transport latch and plunger style |
| Nylon spacer | 328736 | 1-inch outside diameter and original location |
| Vinyl latch-flange cap | 675819 | Shape and position on the transport latch |
| Latch lever handle cover | 645118 | Lever profile and fit |
| 18-inch anti-skid strip | 438641 | For 20⅛-inch tread width |
| 22¼-inch anti-skid strip | 345674 | For 24⅛-inch tread width |
The latch hardware and tread extrusions have changed across production versions. Consult the SolidStep 3.0 component sheets for your particular assembly before selecting individual small parts.
Complete SolidStep 3.0 assemblies at NewRVParts
Each photograph below links to the corresponding MPN listing. Compare the correct width family and number of treads as well as the mounting arrangement.
733932Lippert SolidStep 3.0 30-inch double-step assemblyView product
791572Lippert SolidStep 3.0 26-inch triple-step assemblyView product
791573Lippert SolidStep 3.0 30-inch triple-step assemblyView product
791574Lippert SolidStep 3.0 26-inch quad-step assemblyView product
791575Lippert SolidStep 3.0 30-inch quad-step assemblyView product
Measuring and installation considerations
Doorway widthMeasure between the inside edges of the RV entry frame. Allow enough room for the transport lock and door to close over the stored steps.
Ground-to-threshold heightMeasure when the trailer is level and positioned at its normal camping or towing height, not while its height is temporarily raised.
Step identificationCheck the tag normally located beneath a tread. That confirms the existing product series and helps distinguish earlier components.
Important: SolidStep folds up inside the RV. Verify door swing, entry-floor support, threshold clearance and surrounding trim before installation. Use the manufacturer's installation instructions and secure the step against unexpected movement while servicing.
Other RV step diagrams
Manufacturer reference: Lippert SolidStep 3.0 drawings and manuals.
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