MERCURY RSC891 Outboard Ignition Key Switch Starter MP41070-2 87-17009A5

( Manufacturers Code: Cfw222 ), ( Including: Products As Shown In The Picture ), ( Warranty: 90 Day ), ( Custom Bundle: No ), ( Manufacturer Part Number: RSC891 ), ( Type: Ignition Key Switch Starter )

Review MERCURY Aftermarket Fit Outboard Ignition Key Switch Starter fits MARINE

The RSC891 ignition key switch starter, manufactured by Mercury Marine, is a crucial component in the starting system of outboard engines using the MP41070-2 87-17009A5 electrical system. This switch is meticulously designed to ensure a reliable and safe starting experience.

The RSC891 key switch comes with a built-in starter solenoid, eliminating the need for a separate starter solenoid in the engine wiring harness. This not only simplifies the installation process but also ensures a more secure connection between the key switch and the starter motor.

The switch features a rugged, watertight design, making it ideal for use in marine environments. The switch housing is constructed from high-quality, corrosion-resistant materials that can withstand the harsh conditions found in boats and other watercraft. The keys themselves are engineered to resist corrosion and wear, ensuring a long service life.

The RSC891 key switch also includes a safety interlock mechanism that prevents the engine from starting unless the shift lever is in the neutral position. This feature is essential in marine applications, as it helps prevent accidental starting of the engine in gear, which could result in damage to the engine, boat, or even injury to the operator or passengers.

The switch is easy to install, with clear instructions provided in the packaging. The wiring harness is color-coded for ease of identification, making the installation process straightforward even for those without extensive electrical knowledge. The switch is also compatible with various Mercury Marine outboard engines, making it a versatile solution for a wide range of applications.

In summary, the RSC891 ignition key switch starter by Mercury Marine is a robust and reliable solution for starting the engines on boats and other watercraft using the MP41070-2 87-17009A5 electrical system. Its rugged design, built-in starter solenoid, safety interlock mechanism, and easy installation make it an essential component for any marine application.

Pros and Cons of buying a Mercury Marine Outboard Ignition Key Switch Starter MP41070-2 87-17009a5 (RSC891)

The Mercury Marine Outboard Ignition Key Switch Starter MP41070-2 87-17009a5 (RSC891) is a crucial component for operating outboard engines. In this analysis, we will discuss the advantages and disadvantages of purchasing this part to help you make an informed decision.

1. OEM (Original Equipment Manufacturer) Part: The RSC891 is a genuine Mercury Marine part, ensuring a perfect fit and optimal performance.

2. Enhanced Security: This key switch starter features an integrated security system that prevents unauthorized access to your outboard engine.

3. Convenient Start/Stop Function: The key switch offers a convenient way to start and stop your engine, eliminating the need for a separate starter button.

4. Durable Construction: The marine-grade materials used in the RSC891's construction ensure its resistance to harsh environmental conditions.

5. Easy Installation: The installation process for this part is generally straightforward and can be completed with common hand tools.

1. Cost: As with many OEM parts, the RSC891 can be more expensive compared to aftermarket alternatives.

2. Availability: Depending on the specific model and engine, finding this part in local stores or suppliers might be challenging.

3. Single Function: Unlike some aftermarket alternatives, the RSC891 does not offer additional features like LED indicators or remote control capabilities.

The Mercury Marine Outboard Ignition Key Switch Starter MP41070-2 87-17009a5 (RSC891) is a reliable and secure choice for operating your Mercury Marine outboard engine. Its OEM design guarantees a perfect fit and optimal performance, while the integrated security system provides enhanced protection against unauthorized access. However, its cost and limited features compared to aftermarket alternatives might be a concern for some consumers.

If you prioritize reliability, security, and a perfect fit for your Mercury Marine outboard engine, the RSC891 is an excellent choice. However, if you are looking for additional features or are concerned about the cost, you might consider exploring aftermarket alternatives. Ultimately, the decision depends on your specific requirements and budget.

Details:

Replaces Fit For Mercury Marine Outboard New Ignition Key Switch Starter MP41070-2 87-17009A5, Including: products as shown in the picture, This is an aftermarket product, Starter, Replacement Manufacturer Part Number: RSC891 for: Boats by Year Quicksilver Inflatable 2004 AA380DH4A Remote Control Components, AA320DH4M 2006 AA320005M Accessories Controls and Components Side Mount 1994 Up - Cat.# 90-8M0125572 Control-4000 Mount Non Power Trim, 2010 1025312FL Mariner 15HP 7015213RL Control, 2001 7015213KL Specification: 3 Position Off-Run-Start Push to choke start position Magneto ignition switch Heavy duty potted construction, Minimal bleed per circuit. 1 x Ignition Key Switch.

part #: rsc891 prices

• $20.99-$21.99

specifications vesselveep:

• for models: Marine
• for makes: Mercury
• manufacturers code: Cfw222
• including: Products As Shown In The Picture
• warranty: 90 Day
• custom bundle: No
• manufacturer part number: RSC891
• type: Ignition Key Switch Starter

returns vesselveep:

• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

payments vesselveep:

• wallet: Google-pay
• credit card: Discover
• other

general vesselveep:

• Parts Accessories > Boat Parts > Other
• condition: New

shipping vesselveep:

• service: USPS First Class
• class: Standard
• type: Fixed
• cost: $0.00
• transit: 4-6 Days
• carrier: USPS

seller vesselveep:

• city: Hebron
• rating: 99.8%
• # reviews: 670

offer vesselveep:

• quantity: 9
• best offers: True
• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: October 13, 2025

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