A8004Four-step GlowStep Revolution assemblyView A8004 on NewRVParts
TorkLift GlowStep Revolution A8004 Mounting and Parts Diagrams
The TorkLift GlowStep Revolution A8004 is a four-step, ground-supported aluminum staircase that folds into a compatible RV's existing step well for travel. It replaces an underbody folding-step assembly, rather than storing inside the RV entry door.
Before selecting A8004, measure the distance between the factory step-well mounting brackets, the height from the top of the step opening to the ground, and the space available below the opening when the staircase is folded.
A8004 fit and step measurements
A8004Exact manufacturer part number
4 stepsFolding Revolution model
27½ inFactory mounting bracket spacing
32½–40 inTop of opening to ground
16–17 inFolded depth below opening
22½ × 8 inWidth × depth of each tread
A8004 belongs to the wider 27½-inch bracket group. TorkLift's narrower A8104 step uses a different mounting width. Do not select either version from the four-step count alone.
TorkLift factory mounting and locking diagrams
The manufacturer owner's manual shows the complete step frame, bolt-kit hardware, pivot-arm connection, three-position slide mechanism and storage lock. The original installation chart identifies an optimal frame mounting height of 35¼ inches for the A8004/A8104 four-step arrangement.
TorkLift GlowStep Revolution A8004 Mounting and Parts Diagrams · product photo reference
Part A8004
Check A8004 bracket spacing, mounting bolt locations and the original retaining-pin arrangement in the full TorkLift guide.
Open original manufacturer drawingShow original frame bolt-position drawings
The manufacturer illustrates different bolt positions for ⅜-inch and 5/16-inch mounting hardware. Use the correct holes and specified torque for the installed hardware.
Factory drawing 2: original document
Check A8004 bracket spacing, mounting bolt locations and the original retaining-pin arrangement in the full TorkLift guide.
Open original manufacturer drawingShow the original storage latch and safety-pin illustration
Factory drawing 3: original document
Check A8004 bracket spacing, mounting bolt locations and the original retaining-pin arrangement in the full TorkLift guide.
Open original manufacturer drawingGlowStep Revolution parts and hardware identification
TorkLift's original manual identifies the following components in its assembly and bolt-kit drawings. These are component names and hardware sizes, not interchangeable part numbers for other RV step designs.
| Part or assembly | Manufacturer specification | What to identify |
|---|---|---|
| Step frame | GlowStep Revolution four-step frame | Bracket width and pivot arms |
| Step assembly | Four-tread folding linkage | Tread, hinge and linkage condition |
| Retaining bail pin | ¼-inch × 1⅜-inch usable pin with ½-inch spacer | Locking the step while deployed or stowed |
| Frame mounting bolts | ⅜-inch or 5/16-inch hardware by mounting position | Correct bolt-hole group and fastener grade |
| Pivot-arm hardware | ⅜-inch × 1¾-inch button-head socket cap screw | Original hinge and spacer arrangement |
| Nylon spacers | ⅜ × ¾ × ⅜-inch | Pivot-arm spacing specified in original manual |
The retaining bail pin is required before using or storing the steps. The steps must be fully collapsed before being pushed into the frame so the guide studs and latches engage.
A8004 complete-step photograph
Compare the assembly shape and manufacturer number with the step currently installed in your RV.
Capacity and adjustment
TorkLift specifies a 350 lb capacity without the GlowGuide handrail and a 375 lb capacity when used with the compatible GlowGuide for the four-step Revolution family. The frame has high, middle and low locking positions to accommodate changes in ground height; landing gear adjustments depend on the installed accessory equipment.
Check the RV openingMeasure the mounting width, available underside clearance and ground-to-opening height with the RV level.
Lock each positionEngage the step release mechanism and insert the bail pin before use or travel, as directed by TorkLift.
Check the lower footingMake sure the lowest step is supported on stable ground and does not interfere with uneven terrain.
Before installing: Remove the original steps only after confirming structural support and step-well dimensions. Never step on the Revolution assembly while stored; follow the complete TorkLift installation and locking instructions.
Other RV step reference pages
Manufacturer references: TorkLift GlowStep Revolution fit measurements and TorkLift owner's manual with service diagrams.
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