# Regitar USA Knock Sensor f/Mercruiser Inboard Engines: MCM V-6  V-8 (305, 350  496 CID) MPI Engines w/ECM 555 [RMH001]

**Knock Sensor for Mercruiser Inboard Engines: MCM V-6 & V-8 (305, 350 & 496 CID) MPI Engines with ECM 555**

Knock Sensor for Mercruiser Inboard Engines: MCM V-6 & V-8 (305, 350 & 496 CID) MPI Engines with ECM 555.

**Engine Brand:**

-   Mercury / Mercruiser

**Fitment:**

-   Mercruiser 5.7L - 8.2L
-   Mariner 135HP - 300HP

  
[Brochure (pdf)](https://productimageserver.com/literature/brochure/107532BR.pdf)

## Details

- **Price:** 73.0 USD
- **Type:** Sensors
- **Tags:** Brand_REGITAR USA, Engine Parts & Service, Engine Parts & Service | Sensors

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 73.00 USD | In stock |

## Images

- Regitar USA Knock Sensor f/Mercruiser Inboard Engines: MCM V-6  V-8 (305, 350  496 CID) MPI Engines w/ECM 555 [RMH001] REGITAR USA
- Regitar USA Knock Sensor f/Mercruiser Inboard Engines: MCM V-6  V-8 (305, 350  496 CID) MPI Engines w/ECM 555 [RMH001] REGITAR USA
- Regitar USA Knock Sensor f/Mercruiser Inboard Engines: MCM V-6  V-8 (305, 350  496 CID) MPI Engines w/ECM 555 [RMH001] REGITAR USA

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> Source: [Besafe1st](https://besafe1st.com/products/regitar-usa-knock-sensor-f-mercruiser-inboard-engines-mcm-v-6-v-8-305-350-496-cid-mpi-engines-w-ecm-555-rmh001)
> Updated: 2026-05-22