OFS Remote Switch with 6 foot Harness Assembly, Version 3.0 | Reverso 35-3954-02
OFS Remote Switch with 6 foot Harness Assembly, Version 3.0 | Reverso 35-3954-02
Reverso
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Reverso 35-3954-02 OFS Remote Switch | 6 ft. Harness | Version 3.0 Only | Not Compatible with OFS Pro
The Reverso #35-3954-02 is a remote start/stop switch with integrated 6-foot wire harness for the Reverso Automatic Outboard Flushing System, Version 3.0. Allows the flush cycle to be started or stopped from a remote location — helm, console, transom, or any convenient mounting point — without accessing the main OFS unit. Plug-and-play harness connects directly to the OFS system. Compatible with Reverso OFS Version 3.0 only — not compatible with OFS Pro models.
Part Details:
- Part Number: 35-3954-02 (Reverso)
- SKU: REVERSO-35-3954-02
- Manufacturer: Reverso
- Type: Remote Switch with Harness Assembly
- Harness Length: 6 ft.
- Function: Remote start/stop of OFS flush cycle
- Connection: Plug-and-play harness — direct connection to OFS system
- Compatible: Reverso Automatic OFS Version 3.0
- Not Compatible: Reverso OFS Pro
- Condition: New
Additional Information
⚠️ Version Compatibility — OFS 3.0 Only, Not OFS Pro:
The 35-3954-02 is designed specifically for the Reverso Automatic OFS Version 3.0. It is not compatible with the Reverso OFS Pro. Before ordering, confirm which Reverso OFS version is installed on your vessel — the model designation is on the OFS unit housing. If you have an OFS Pro, contact Reverso or us at MacombMarineParts.com to confirm the correct remote switch part number for the Pro version.
What the Remote Switch Does — and What It Doesn't:
The 35-3954-02 is a remote trigger only. It starts and stops the flush cycle from a remote location; it does not alter the system's timing, flush duration, or any other OFS operating parameters. All system logic and timing remain controlled by the main OFS unit. The remote switch adds convenience — particularly on larger vessels where the OFS main unit is installed in the bilge, engine compartment, or another location that is inconvenient to access during or after use.
6-Foot Harness — Mounting Range:
The integrated 6-foot harness provides up to 6 feet of distance between the OFS main unit and the remote switch mounting location. Plan your mounting location and harness routing before installation to confirm 6 feet is sufficient for your vessel layout. Confirm the harness can be routed cleanly between the main unit and the intended switch mounting location without sharp bends or pinch points.
Plug-and-Play Connection:
The 35-3954-02 connects directly to the Reverso OFS Version 3.0 via the harness connector — no additional wiring or splicing required for standard installations. The weatherproof sealed connector is built for the marine environment.
Mounting:
The remote switch fits standard Reverso mounting plates and faceplates and is compatible with Reverso OFS deck kits and inlet kits. Mount at the helm, console, transom, or any location within the 6-foot harness reach from the OFS main unit.
Installation Notes:
- Confirm your OFS system is Version 3.0 — not OFS Pro — before ordering
- Plan harness routing before installation to confirm 6 ft. reach is adequate
- Route harness away from heat sources, sharp edges, and moving parts
- Refer to Reverso OFS Version 3.0 installation documentation for remote switch wiring and mounting procedure
Frequently Asked Questions
1. Is this remote switch compatible with the Reverso OFS Pro?
No — the 35-3954-02 is for Reverso OFS Version 3.0 only. It is not compatible with the OFS Pro. Confirm your OFS model designation on the unit housing before ordering. Contact us at MacombMarineParts.com if you need the correct remote switch for an OFS Pro system.
2. Does the remote switch change how the OFS system operates?
No — the 35-3954-02 is a remote trigger only. It starts and stops the flush cycle from a remote location; all OFS system timing and operating parameters are controlled by the main OFS unit and remain unchanged.
3. How far can the remote switch be mounted from the main OFS unit?
Up to 6 feet, limited by the integrated harness length. Plan your mounting location and harness routing before ordering to confirm 6 feet is sufficient for your vessel layout.
4. Does this require any additional wiring?
No — the 35-3954-02 is plug-and-play. The harness connects directly to the Reverso OFS Version 3.0 without additional wiring or splicing for standard installations.
5. Can I use two remote switches on one OFS system?
The product data does not confirm whether multiple remote switches can be connected simultaneously. Contact Reverso directly to confirm if a dual-switch configuration is supported on OFS Version 3.0.

! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
MacombMarineParts.com is not liable for parts ordered based on assumed fitment. Returns due to buyer-selected incorrect fitment are subject to our standard return and restocking fee policies.