Shift Interrupt Switch – Fits MerCruiser Alpha & Bravo Engines (Replaces 87-814281A5)
Shift Interrupt Switch – Fits MerCruiser Alpha & Bravo Engines (Replaces 87-814281A5)

Shift Interrupt Switch – Fits MerCruiser Alpha & Bravo Engines (Replaces 87-814281A5)

Vendor: JLM Marine
Availability: In Stock
$17.00
$20.00
$17.00
Subtotal: $17.00

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Shift Interrupt Switch – Fits MerCruiser Alpha & Bravo Engines (Replaces 87-814281A5)

Shift Interrupt Switch – Fits MerCruiser Alpha & Bravo Engines (Replaces 87-814281A5)

$20.00 $17.00
Shift Interrupt Switch – Fits MerCruiser Alpha & Bravo Engines (Replaces 87-814281A5)

Shift Interrupt Switch – Fits MerCruiser Alpha & Bravo Engines (Replaces 87-814281A5)

$20.00 $17.00
Descripción

Shift Interrupt Switch – Fits MerCruiser Alpha & Bravo Engines (Replaces 87-814281A5)

This shift interrupt switch is designed for Mercury MerCruiser stern drive engines from model years 1996–2001. It is compatible with a wide range of models, including the 3.0L, 4.3L, 5.0L, and 5.7L engines equipped with Alpha One and Bravo outdrives, ensuring smooth and reliable shifting.

This component is a direct replacement for the following Mercury/MerCruiser part numbers: 87-814281A5 and 814281A5.

  • Installation Type: Direct bolt-on replacement for easy installation.
  • Connection: Features a standard 2-wire electrical connection.
  • Function: Momentarily cuts ignition when shifting from gear to neutral under load to prevent gear damage and ensure smooth operation.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number
Mercury/MerCruiser 87-814281A5
Mercury/MerCruiser 814281A5

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Brand Model Rated HP Stroke Years OEM Part No. Notes
MerCruiser 3.0L Alpha One 135-140 4-Stroke 1996-2001 87-814281A5 GM 181 I/L4
MerCruiser 3.0LX Alpha One 135-140 4-Stroke 1996-1997 87-814281A5 GM 181 I/L4
MerCruiser 4.3L Alpha/Bravo 190-225 4-Stroke 1998-2001 87-814281A5 4.3L CARB ALPHA/BRAVO
MerCruiser 4.3L (GEN+) 190-225 4-Stroke 1996-1997 87-814281A5 4.3LX (2 BBL) GM 262 V-6
MerCruiser 4.3LH (GEN+) 190-225 4-Stroke 1998 87-814281A5 4.3LH (4 BBL) GM 262 V-6
MerCruiser 4.3LXH (GEN+) 190-225 4-Stroke 1996-1997 87-814281A5 4.3LXH (4 BBL) GM 262 V-6
MerCruiser 5.0L Alpha/Bravo 220-260 4-Stroke 1998-2001 87-814281A5 5.0L (2 BBL) GM 305 V-8
MerCruiser 5.0L CARB Alpha/Bravo 220-260 4-Stroke 1998-2001 87-814281A5 Alpha and Bravo models
MerCruiser 5.7L Alpha/Bravo 250-300 4-Stroke 1997-2001 87-814281A5 5.7L (2 BBL) GM 350 V-8
MerCruiser 5.7L CARB Alpha/Bravo 250-300 4-Stroke 1997-2001 87-814281A5 Alpha and Bravo models
MerCruiser 5.7LX 250-300 4-Stroke 1997 87-814281A5 5.7LX (4 BBL) GM 350 V-8
MerCruiser 350 MAG Alpha 300 4-Stroke 1997 87-814281A5 350 MAG (4 BBL) GM 350 V-8

Technical Specifications

Specification Value
Product Type Shift Interrupter Micro Switch Assembly
Installation Direct Replacement
Fuel Type Gasoline
Connection 2-Wire Electrical Connection
Housing Material Plastic
Housing Color Black
Fitting Type Bolt-on
Warranty Yes (specifics vary by seller)
Other Technical Attributes Momentarily cuts ignition when shifting from gear to neutral under load

Package Contents

  • 1 x Shift Interrupter Micro Switch Assembly (87-814281A5)

Installation Guide

  1. Safety First: Ensure the engine is off and cool. Disconnect the boat's battery to prevent electrical shorts.
  2. Locate the Switch: Find the old shift interrupt switch, typically mounted on the shift cable bracket near the engine.
  3. Disconnect Wiring: Carefully unplug the 2-wire electrical connector from the old switch.
  4. Remove Old Switch: Unscrew the mounting bolt(s) holding the switch in place and remove it.
  5. Install New Switch: Position the new switch correctly and secure it with the original mounting hardware.
  6. Reconnect Wiring: Plug the electrical connector firmly into the new switch.
  7. Restore Power: Reconnect the battery terminals.
  8. Test Operation: With the boat safely secured, start the engine and test the shifting from neutral into forward and reverse to ensure the engine runs smoothly and does not stall.

Troubleshooting & FAQ

Q: How do I know if this shift interrupt switch will fit my engine?
A: Please verify your engine model and year against the "Compatible Engine Models" table. Cross-reference your existing part number with those listed (87-814281A5) to ensure an exact match.

Q: What is the function of a shift interrupt switch?
A: Its purpose is to momentarily cut the engine's ignition for a split second when you shift out of gear (from forward or reverse to neutral). This brief interruption of power relieves pressure on the drive gears, allowing for a smoother, easier shift and preventing damage to the dog clutch.

Q: What are common signs that my shift interrupt switch is failing?
A: Common symptoms include the engine stalling when shifting into neutral, difficulty shifting out of gear, or a "clunking" noise during shifts. If the switch is faulty, the engine may not "stumble" as it should, making shifting difficult.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.
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Para nuestros clientes típicos de EE. UU. y Canadá , nuestros plazos de envío son los siguientes:

  • Amazon FBA : los pedidos se entregarán dentro de 1-5 días hábiles después de realizar el pedido (durante ciertos períodos especiales como promociones importantes, Navidad, etc., el tiempo de entrega de Amazon FBA puede verse afectado).
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Al realizar un pedido, estimaremos las fechas de envío y entrega según la disponibilidad de sus artículos y las opciones de envío que elija. Dependiendo del proveedor de envío que elija, las fechas de envío estimadas podrían aparecer en la página de presupuestos de envío.

Tenga en cuenta también que las tarifas de envío de muchos de los artículos que vendemos se basan en el peso. Puede consultar el peso de cada artículo en su página de detalles. Para reflejar las políticas de las empresas de envío que utilizamos, todos los pesos se redondearán a la libra superior.

Acerca de JLM Marine

Fundada en 2002, JLM Marine se ha consolidado como un fabricante dedicado de piezas marinas de alta calidad, con sede en China. Nuestro compromiso con la excelencia en la fabricación nos ha ganado la confianza de las principales marcas marinas a nivel mundial.

Como proveedor directo, evitamos intermediarios, lo que nos permite ofrecer precios competitivos sin comprometer la calidad. Este enfoque no solo promueve la rentabilidad, sino que también garantiza que nuestros clientes reciban el mejor valor directamente del proveedor.

Estamos entusiasmados de ampliar nuestro alcance a través de canales minoristas, llevando nuestra experiencia y compromiso con la calidad directamente a los propietarios de embarcaciones y entusiastas de todo el mundo.

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