ARCO SW275 Solenoid for Mercury Marine 89-15857 89-68258 87-61053 Mercruiser
AR-SW275
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ARCO SW275 Marine Solenoid
Premium Quality Replacement for Mercury & Mercruiser
The ARCO SW275 is a professional-grade replacement solenoid designed for the rigorous demands of the marine environment. Engineered with an isolated base and stainless steel hardware, this 12V unit provides reliable switching for both engine starting systems and power trim/tilt components across a wide range of Mercury, Mariner, and Mercruiser applications.
Key Features
- β Isolated Base: Safe for various mounting surfaces.
- β Stainless Steel: High-grade hardware to resist salt corrosion.
- β Dual Purpose: Used for starters and trim/tilt pumps.
- β Early Prestolite Style: Matches vintage and modern specs.
Technical Specs
| Voltage | 12 Volt |
| Duty Cycle | Intermittent |
| Number of Terminals | 4 (Isolated) |
| Main Studs | 5/16-18 Threaded |
| Small Terminals | 10-32 Threaded |
| Mounting | Flat 180 (F180) |
Compatibility / Fitment Guide
| Make/System | Model/Application | Notes |
|---|---|---|
| Mercury/Mariner Outboard | 45HP to 115HP (various years) | Starter and Power Trim |
| Mercruiser Sterndrive | 120, 140, 165, 225, 233, 470, 888 | Starter Solenoid / Control Panel |
| Mercruiser V8 | 228, 260, 305/350/454 CID Engines | Wiring Harness Mount |
| Force Outboard | Multiple Horsepower Ranges | Universal Replacement |
OEM Cross Reference
| Mercury Marine | 89-15857, 89-68258, 89-68258A4, 87-61053, 89-76545, 89-853654A1 |
| Sierra Marine | 18-5815 |
| Mallory Marine | 9-15111 |
| Volvo Penta | 852565 |
| GLM / Indmar | 72370 / 755001 |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance.
How do I know if it is compatible?
We recommend checking the SKU/MPN and Cross Reference list provided above. If your original part number matches any of these, it is a guaranteed fit.
Can this be used for both starting and power trim systems?
Yes, the SW275 is designed to handle the intermittent high-current requirements of both starting motors and hydraulic power trim/tilt pumps on Mercury and Mercruiser engines.
Note: Please verify your original part number against the references above before purchasing. All 4Boats / Aftermarket parts are 100% brand new.
For the products under Β£150 the shipping is Β£6.99.
Free delivery for most items over Β£150.
