# ARCO Marine Original Equipment Quality Replacement Solenoid f/Mercruiser, Mercury  Yamaha 4 Stroke - 12V Isolated Base [SW099]

**Original Equipment Quality Replacement Solenoid for Mercruiser, Mercury & Yamaha 4 Stroke - 12V Isolated Base**

Replacement solenoid that will fit Mercruiser, Mercury & Yamaha 4 Stroke, Isolated base, 12 Volt.

**Replaces:**

-   MERCURY 89-818999A1
-   MERCURY 89-818999A2
-   MERCURY 89-850188A1
-   MERCURY 89-850188T1
-   YAMAHA 65W-81941-00
-   SIERRA 18-5820

\*ARCO Assurance 12-month part and labor warranty protection

**This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.**

## Details

- **Price:** 47.67 USD
- **Type:** Solenoids
- **Tags:** 1st Class Eligible, Brand_ARCO Marine, Clearance, Engine Parts & Service, Engine Parts & Service | Solenoids, Specials

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 47.67 USD | In stock |

## Images

- ARCO Marine Original Equipment Quality Replacement Solenoid f/Mercruiser, Mercury  Yamaha 4 Stroke - 12V Isolated Base [SW099] ARCO Marine
- ARCO Marine Original Equipment Quality Replacement Solenoid f/Mercruiser, Mercury  Yamaha 4 Stroke - 12V Isolated Base [SW099] ARCO Marine
- ARCO Marine Original Equipment Quality Replacement Solenoid f/Mercruiser, Mercury  Yamaha 4 Stroke - 12V Isolated Base [SW099] ARCO Marine
- ARCO Marine Original Equipment Quality Replacement Solenoid f/Mercruiser, Mercury  Yamaha 4 Stroke - 12V Isolated Base [SW099] ARCO Marine
- ARCO Marine Original Equipment Quality Replacement Solenoid f/Mercruiser, Mercury  Yamaha 4 Stroke - 12V Isolated Base [SW099] ARCO Marine

---

> Source: [Besafe1st](https://besafe1st.com/products/arco-marine-original-equipment-quality-replacement-solenoid-f-mercruiser-mercury-yamaha-4-stroke-12v-isolated-base-sw099)
> Updated: 2026-05-21