Mercury MerCruiser Isolator Part # 892267510 By Automotive Authority

Isolator for Mercury MerCruiser

This isolator, OEM cross‑reference number 892267510, prevents electrical interference and protects your marine electrical system for Mercury MerCruiser engines. Designed to isolate the battery and alternator, it ensures reliable performance on the water.

Overview

This isolator for Mercury MerCruiser is a direct‑fit electrical component that separates battery circuits to prevent parasitic drain and voltage spikes. It is essential for maintaining clean power distribution in boats equipped with Mercury MerCruiser stern drives and inboards, keeping your starting battery charged while protecting sensitive electronics.

Built For Performance

• Heavy‑duty diode construction for long‑lasting reliability
• 100‑amp continuous rating handles high electrical loads
• Corrosion‑resistant housing withstands marine environments
• Compact design allows easy mounting in tight engine compartments
• Plated terminals resist oxidation and ensure solid connections

Fits These Machines

• for Mercury MerCruiser stern drive engines
• for Mercury MerCruiser inboard engines

On‑The‑Job Use

• Separates house and starting battery banks on fishing boats
• Used in dual‑battery setups on cruisers and runabouts
• Ideal for marine electrical systems requiring battery isolation
• Commonly installed in saltwater and freshwater boats

Specs At A Glance

Good To Know

Q: Will this isolator work with a 24‑volt system? A: This isolator is designed for 12‑volt systems. For 24‑volt applications, verify voltage compatibility before ordering.

Q: Can I install it myself? A: Yes, with basic electrical knowledge. Follow the wiring diagram provided and ensure all connections are secure to avoid voltage drops.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.