89-825096T Starter Solenoid Relay for Mercury Mariner | JLM Marine

89-825096T Starter Solenoid Relay for Mercury Mariner | JLM Marine

This aftermarket starter solenoid relay is designed as a direct replacement for Mercury Mariner 4-stroke outboard engines ranging from 8 HP to 115 HP. Engineered to meet or exceed OEM specifications, this 12V relay ensures reliable starting performance across a wide range of engine models from 1998 to 2010.

This relay directly replaces OEM part numbers 89-825096T, 825096T01, 825096T, and aftermarket number 18-5821, providing a cost-effective solution without compromising quality or compatibility.

• 12V operation for consistent performance
• Direct bolt-on replacement requiring no modifications
• Compatible with Mercury 4-stroke outboards from 8 HP to 115 HP

Part Number Cross-Reference

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

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.

Technical Specifications

Package Contents

• 1 × Starter Solenoid Relay

Installation Guide

1. Disconnect the negative battery cable to prevent electrical shorts during installation.
2. Locate the existing starter solenoid relay on your Mercury Mariner outboard engine.
3. Disconnect all electrical terminals from the old solenoid, noting their positions for reference.
4. Remove the mounting bolts securing the old solenoid to the engine.
5. Position the new starter solenoid relay in the same mounting location.
6. Secure the new relay with the original mounting bolts, tightening them firmly but not over-tightening.
7. Reconnect all electrical terminals to the new solenoid in the same configuration as the original.
8. Ensure all connections are clean, tight, and properly seated to prevent voltage drop or corrosion.
9. Reconnect the negative battery cable.
10. Test the starter system by turning the ignition key to verify proper relay operation.
11. Listen for a clear click from the solenoid when the key is turned, indicating proper engagement.
12. If the engine starts normally, installation is complete; if issues persist, recheck all connections.

Troubleshooting & FAQ

Q: How do I confirm this starter solenoid relay fits my engine?
A: Cross-reference your engine model and year with the compatibility table above. You can also verify the OEM part number (89-825096T, 825096T01, 825096T, or 18-5821) on your existing solenoid or in your engine's parts diagram.

Q: What are the signs that my starter solenoid relay needs replacement?
A: Common symptoms include a clicking sound when turning the key but the engine won't crank, intermittent starting issues, or complete failure to engage the starter motor. Corrosion or burnt terminals on the solenoid are also indicators of failure.

Q: How often should I replace the starter solenoid relay?
A: Starter solenoid relays typically last many years under normal conditions. Replace when you experience starting problems, notice visible damage or corrosion, or during routine electrical system maintenance if the relay shows signs of wear.

Q: Can I install this relay myself or do I need a mechanic?
A: Installation is straightforward for those with basic mechanical and electrical knowledge. However, if you're unfamiliar with marine electrical systems or uncomfortable working around batteries, professional installation is recommended.

Q: Is this an OEM part or 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.