90-861329 Service Manual – MerCruiser GM 4-Cylinder 181 CID (3.0 L)

90-861329 Service Manual Overview

The 90‑861329 Service Manual is the official factory-issued guide for MerCruiser GM 4‑cylinder 181 CID (3.0 L) marine engines. Printed in March 1999, this manual, labeled as Service Manual No. 26, delivers comprehensive OEM service instructions.  

System Coverage & Application

It covers models from 1998 onward, and includes key engine areas such as engine block, fuel system, cooling, exhaust, electrical wiring, and Alpha drives. As a result, it remains a trusted tool for both seasoned mechanics and dedicated DIYers.

Technical Highlights

Inside the manual, you’ll find:

• Clear exploded diagrams and systematically organized schematics

• Step-by-step procedures for disassembly, maintenance, and troubleshooting

• Practical safety alerts, torque specs, and orderly instructions designed for efficient service work

Format & Availability

It’s available in two convenient formats:

• Used printed copies, usually in good, readable condition—ideal for hands-on workshop use

• Digital PDF versions, fully bookmarked and indexed for fast, searchable access in modern digital workflows

Arizona Outboard Dismantlers supplies authentic marine manuals trusted by professionals and DIY enthusiasts alike. Therefore, the 90-861329 Service Manual guarantees the factory-level precision and clarity you need for reliable engine care.