ST-198 Engine Crankshaft Rear Seal Installer for John Deere JDG478 JDG477 JDG476

Product Overview

This aftermarket replacement crankshaft rear seal installer is intended for the listed John Deere applications and references JDG478, JDG477, JDG476, and ST-198. A crankshaft rear seal installer is used to position and install the corresponding seal during engine service.

Key Features & Performance

• Designed for service work involving a crankshaft rear seal.
• Supports positioning and installation of the corresponding engine seal.
• References JDG478, JDG477, JDG476, and ST-198 for comparison.
• Intended for maintenance or replacement work on the listed John Deere applications.

Fitment & Compatibility

• for John Deere JDG478 applications
• for John Deere JDG477 applications
• for John Deere JDG476 applications

Common Uses

• Replacing a worn, damaged, or malfunctioning crankshaft rear seal.
• Servicing the rear crankshaft seal area during engine maintenance.
• Supporting seal installation when the corresponding component requires replacement.

Technical Specifications

• Product Type: Crankshaft rear seal installer
• Part Number(s): JDG478, JDG477, JDG476, ST-198
• Model Application(s): John Deere JDG478, JDG477, and JDG476

Frequently Asked Questions

Q: What does a crankshaft rear seal installer do? A: It is used to position and install the corresponding rear crankshaft seal during engine service.

Q: How should fitment be verified? A: Compare the complete existing part number and complete equipment model designation with JDG478, JDG477, JDG476, and ST-198 before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. 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.