991551 863358T 27-896561 Thermostat for Mercruiser Sterndrive 4.3L 5.7L 7.4L

This Mercruiser Thermostat is a thermostat compatible with Mercruiser stern drive 4.3L, 5.7L, and 7.4L engines and references part numbers 991551, 863358T, and 27-896561.

Product Overview

The Mercruiser thermostat is listed for stern drive marine engine applications. It provides a replacement reference for the listed 4.3L, 5.7L, and 7.4L engines and associated part numbers.

Key Features & Performance

• Thermostat for stern drive applications

• Brand: Mercruiser

• Part numbers: 991551, 863358T, and 27-896561

• Listed for 4.3L, 5.7L, and 7.4L engines

Fitment & Compatibility

• for Mercruiser stern drive 4.3L engines

• for Mercruiser stern drive 5.7L engines

• for Mercruiser stern drive 7.4L engines

Technical Specifications

Product Type: Thermostat

Brand Compatibility: Mercruiser

Application: Stern drive

Engine Compatibility: 4.3L, 5.7L, 7.4L

Part Number(s): 991551, 863358T, 27-896561

Frequently Asked Questions

Q: Which applications are listed for this thermostat? A: The title lists Mercruiser stern drive applications with 4.3L, 5.7L, and 7.4L engines.

Q: How should fitment be verified? A: Confirm the Mercruiser engine application and existing part number against 991551, 863358T, or 27-896561 before purchase.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.