Mitsubishi 4G52, 4G54, 4G55 engine 2.0L, 2.6L Workshop Manual (P/N 30521)

This workshop manual focuses directly on the Mitsubishi Astron 4G5-series. It organizes technical data strictly by engine code rather than vehicle chassis. This structure saves time when you need immediate access to lubrication, fuel, and cooling specs alongside core engine mechanics. Always verify factory safety protocols and proper torque sequences before starting any heavy teardown or maintenance work.

Engine Coverage

• 4G52 — 2.0L
• 4G54 — 2.6L
• 4G55 — 2.0L

Common Vehicle Applications

These Astron powerplants drive a wide range of Mitsubishi models. You will find them equipped in the Lancer, Galant, Sigma, Delica, Pajero, and Triton. Check your specific engine tag first. The vehicle badge simply acts as a secondary confirmation for platform compatibility.

Manual Contents

• Complete breakdown of the 4G5 engine family
• Dedicated sections for 2.0L and 2.6L displacement variations
• Deep dives into core mechanical components, engine lubrication, fuel delivery, and the cooling system
• Factory document identifier: 30521

Technical Specifications

Content Layout

This manual avoids mixing general chassis wiring or suspension data with engine mechanics. It delivers a highly focused main engine section, supported immediately by chapters on lubrication, fuel, and cooling. This layout proves incredibly efficient for technicians comparing engine codes across different applications. You get exactly the drivetrain data you need without filtering through irrelevant body diagrams.