Product Overview
The R4918 rev counter board is an internal feedback component used in select GTO and Linear Pro XLS actuator-style swing gate operators. It helps report arm movement back to the control system so the opener can understand travel and operate the gate consistently. When the rev counter signal is weak, intermittent, or missing, the operator may run only part of the cycle, stop in cold or damp conditions, reverse unexpectedly, or fail to learn travel correctly. This board is often considered after checking battery condition, wiring, arm harness connections, gate drag, and control-board errors. R4918 is commonly listed for SW3000XLS and SW4000XLS series operators, and some Gate Openers Unlimited references also include SW3200XLS and SW4200XLS related dual-gate families. Because the rev counter is model-generation specific, match the original board and parts diagram before ordering.
Compatible With
- Select GTO / Linear Pro SW3000XLS swing gate operators
- Select GTO / Linear Pro SW3200XLS dual swing gate operator systems when the arm parts diagram calls for R4918
- Select GTO / Linear Pro SW4000XLS swing gate operators
- Select GTO / Linear Pro SW4200XLS dual swing gate operator systems when confirmed by parts diagram
- May be associated with 3000XLS and 4000XLS actuator arm service applications depending on control platform and arm generation
- Verify original board number, connector style, actuator arm generation, and parts diagram before ordering
Features and Specifications
| Manufacturer | GTO / Linear Pro |
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| Product Type | Rev counter board / movement feedback board |
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| Part Number | R4918 |
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| Application | Operator arm feedback and travel-counting circuit |
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| Compatible Operator Type | Select XLS actuator swing gate operators |
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| Voltage | Used in low-voltage operator arm control circuit |
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| Security Technology | Not a radio receiver or remote control component |
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| Notes | Not the main control board or logic board |
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Also Known As / Related Part Numbers
- R4918
- R-4918
- LIN-R4918
- GTO R4918
- Linear R4918
- Rev counter board
- Rev counter sensor board
- SW3000XLS rev counter
- SW4000XLS rev counter
- SW3200XLS related application
- SW4200XLS related application
Technician Note
Before replacing a rev counter board, inspect the arm harness, control box wiring, battery voltage under load, and gate movement. A dragging gate or weak battery can mimic a bad feedback board.
Before Ordering Checklist
- Confirm the operator model is SW3000XLS, SW3200XLS, SW4000XLS, or SW4200XLS related
- Match the existing rev counter board and connector layout
- Inspect wiring between the actuator arm and control box
- Check gate movement by hand with the operator disconnected
- Do not confuse this part with the main logic control board
Professional Advisory
Low-voltage diagnostic work is usually straightforward for a qualified gate technician, but do not work inside energized equipment or bypass safety features while testing travel problems.
Important Ordering Warnings
- R4918 is not a universal rev counter board for all GTO or Mighty Mule operators.
- Symptoms that look like rev counter failure can also be caused by a weak battery, bad harness, poor limit setup, or mechanical gate binding.
Product Questions and Answers
What does the R4918 rev counter board do?
It helps the operator track actuator movement so the control system can manage gate travel, sequencing, soft start/stop behavior, and obstruction response.
Which models is R4918 commonly associated with?
It is commonly listed for select GTO and Linear Pro SW3000XLS and SW4000XLS operators, with SW3200XLS and SW4200XLS related dual-gate applications when confirmed by parts diagram.
Is R4918 the main control board?
No. R4918 is a rev counter feedback board used with the actuator arm. It is not the main logic board in the control box.
What problems can a failed rev counter board cause?
Possible symptoms include incomplete travel, random stopping, failure to learn travel, or inconsistent movement feedback after other wiring and mechanical issues are ruled out.
Should I replace this board before checking the gate mechanically?
No. First confirm the gate moves freely, the battery is healthy, and the wiring is intact. Mechanical drag can make a good rev counter system appear faulty.
