Mercury Quicksilver 858541T4 Adapter Plate Kit OEM Optimax Air Handler

Part Number: 858541T4
UPC: 745061552234

Condition: Brand New OEM Part

This listing is for a genuine Mercury Marine / Quicksilver OEM Adaptor Plate Kit, part number 858541T4.

This factory Mercury component is designed for use in Mercury Optimax 3.0L DFI air handling systems. It is a direct OEM replacement component manufactured to Mercury Marine specifications for proper fit, performance, and reliability.

Why buy aftermarket when you can install the same genuine Mercury part used from the factory?

Features

• Genuine Mercury Marine OEM component
• Brand new and never installed
• Factory fit and finish
• Designed for Mercury Optimax 3.0L DFI applications
• Direct replacement Mercury part number 858541T4

Typical Applications

Commonly found on:

• Mercury Optimax 200 HP
• Mercury Optimax 225 HP
• Mercury Optimax 250 HP
• Mercury Pro XS 3.0L DFI applications

Used in Mercury air handler / intake system assemblies.

OEM Information

Manufacturer:
Mercury Marine / Quicksilver

Part Number:
858541T4

UPC:
745061552234

Please verify compatibility using your engine serial number before purchasing. Mercury used multiple versions of air handling components across production years.

You will receive the exact genuine Mercury OEM adaptor plate kit shown in the photos.

This is not aftermarket or a reproduction part — it is a factory Mercury Marine component.