Trim Sender Limit Kit – Fits MerCruiser Alpha One Gen 2 & Bravo Stern Drives (Replaces 805320A03, 805320A1)
Trim Sender Limit Kit – Fits MerCruiser Alpha One Gen 2 & Bravo Stern Drives (Replaces 805320A03, 805320A1)

Trim Sender Limit Kit – Fits MerCruiser Alpha One Gen 2 & Bravo Stern Drives (Replaces 805320A03, 805320A1)

Vendor: JLM Marine
Availability: In Stock
$37.89
$45.00
$37.89
Subtotal: $37.89

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Trim Sender Limit Kit – Fits MerCruiser Alpha One Gen 2 & Bravo Stern Drives (Replaces 805320A03, 805320A1)

Trim Sender Limit Kit – Fits MerCruiser Alpha One Gen 2 & Bravo Stern Drives (Replaces 805320A03, 805320A1)

$45.00 $37.89
Trim Sender Limit Kit – Fits MerCruiser Alpha One Gen 2 & Bravo Stern Drives (Replaces 805320A03, 805320A1)

Trim Sender Limit Kit – Fits MerCruiser Alpha One Gen 2 & Bravo Stern Drives (Replaces 805320A03, 805320A1)

$45.00 $37.89
Descripción

Trim Sender Limit Kit – Fits MerCruiser Alpha One Gen 2 & Bravo Stern Drives

This trim sender and limit switch kit is designed for a wide range of Mercury MerCruiser stern drives, including MC-I, R, MR, Alpha One, Alpha One Gen II, and Bravo I, II, & III models. It provides a complete replacement for both the trim position sender and the trim limit switch assemblies, ensuring your trim system functions accurately.

This assembly is a direct replacement for Mercury / MerCruiser part numbers 805320A03, 805320A1, 17693A2, 63115A12, 88678A4, and 88678A5. It also replaces aftermarket parts such as Sierra 18-7633 and Red Rhino MR-971.

  • Complete Kit: Includes both the port side trim limit switch and the starboard side trim position sender.
  • Ready to Install: Features wire leads with pre-installed electrical connectors for a direct fit.
  • Critical Note: Designed for use with analog gauge systems only. Not compatible with SmartCraft digital systems.

Part Number Cross-Reference

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

Brand Part Number
Mercury / MerCruiser 805320A03
Mercury / MerCruiser 805320A1
Mercury / MerCruiser 17693A2
Mercury / MerCruiser 63115A12
Mercury / MerCruiser 88678A4
Mercury / MerCruiser 88678A5
Sierra 18-7633
Red Rhino MR-971
REC REC805320A03
RM RM805320A1

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 Stroke OEM Part No. Notes
MerCruiser MC-I 4-Stroke 805320A03
MerCruiser R 4-Stroke 805320A03
MerCruiser MR 4-Stroke 805320A03
MerCruiser Alpha One 4-Stroke 805320A03
MerCruiser Alpha One Gen 2 4-Stroke 805320A03 For analog instruments only
MerCruiser Bravo I 4-Stroke 805320A03 For analog instruments only
MerCruiser Bravo II 4-Stroke 805320A03 For analog instruments only
MerCruiser Bravo III 4-Stroke 805320A03 For analog instruments only

Technical Specifications

Specification Value
Product Type Tilt/Trim Sender & Limit Kit
Installation Direct replacement
Connection Wire leads with pre-installed electrical connectors
Mounting Type Direct mount to gimbal housing
Housing Material Plastic
Operating Voltage 12 Volts
Contact Type Normally Open
Terminal Screw
Circuit Type 1-way
Actuator Type Rotary
Warranty Varies by manufacturer (Typically 1 year)
Other Technical Attributes Trim limit switch on port side; trim position sender on starboard side

Package Contents

  • 1 x Trim Limit Switch (Port Side)
  • 1 x Trim Position Sender (Starboard Side)
  • 2 x Wire Leads with Pre-installed Connectors

Installation Guide

  1. Safety First: Disconnect the boat's battery before beginning any electrical work.
  2. Access Components: Tilt the stern drive to the full "up" position to access the trim sender and limit switch located on the gimbal housing.
  3. Disconnect Wires: Carefully unplug the electrical connectors for the old sender and limit switch.
  4. Remove Old Switches: Unscrew and remove the old trim limit switch (port side) and trim position sender (starboard side). Note the orientation of the actuator arms.
  5. Install New Switches: Mount the new trim limit switch on the port side and the new trim position sender on the starboard side, ensuring they are correctly seated.
  6. Secure and Connect: Fasten the new components with the original hardware and connect the pre-installed wire leads to the boat's harness.
  7. Test Operation: Reconnect the battery. Test the trim functionality and verify the trim gauge reads correctly and the upper limit switch functions.
  8. Final Check: Ensure all connections are secure and wires are routed away from any moving parts.

Troubleshooting & FAQ

Q: How do I know if this kit will fit my MerCruiser drive?

A: This kit is designed for a broad range of MerCruiser drives, including MC-I, R, MR, Alpha One, Alpha One Gen II, and Bravo I, II, & III models. The best way to confirm is to match your original part number to those listed in our cross-reference table, such as 805320A03 or 805320A1.

Q: Will this trim sender kit work with my SmartCraft digital gauges?

A: No. This kit is specifically designed for systems with traditional analog trim position gauges. It is not compatible with MerCruiser's SmartCraft digital information systems.

Q: What are the signs that my trim sender or limit switch is failing?

A: Common symptoms include an inaccurate or non-functional trim gauge, the stern drive trimming up or down on its own, or the trim motor not stopping when it reaches the upper limit. These issues can be caused by a faulty sender (gauge issues) or a faulty limit switch (trim range issues).

Q: Which side of the gimbal housing does each part install on?

A: The kit is side-specific for proper operation. The trim limit switch must be installed on the port (left) side, and the trim position sender must be installed on the starboard (right) side.

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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