Advance 135A Marine Reduction Gearbox — Ratio 4:1

Overview

The Advance 135A is a heavy-duty marine reduction gearbox built for reliable propulsion transmission on ships and boats. Its rugged cast-iron housing, precision helical gears, and multi-plate clutch deliver smooth, dependable power transfer from the main diesel engine to the propeller shaft. Configured with a 4:1 reduction ratio and CCS certified, it is supplied ready for global export.

Key selling points

• Heavy-duty cast-iron housing for long service life in harsh marine environments
• Precision helical gears and multi-plate clutch for smooth, quiet, reliable transmission
• Integrated control valve and oil cooler for stable operation and optimal temperature
• CCS certified; built for professional marine propulsion
• 1 Year / 1500 hrs warranty with wooden-box export packing

Technical specifications

Features & highlights

• Rigid cast-iron construction resists vibration and supports high loads
• Helical gearset with thrust bearing for smooth engagement and axial-load handling
• Standard marine coupling flange for secure, precise shaft connection
• Control lever and oil dipstick for easy operation and maintenance
• Four lifting eyes for safe handling and installation

Typical applications

Marine main propulsion for fishing boats, cargo ships, tug boats, and yachts, matched to the vessel's engine power and required reduction ratio.

See it in use: Fishing Trawler Repower with 320 HP Marine Diesel and Reduction Gearbox.

Customization options

Alternative reduction ratios, input-speed matching, flange and coupling configurations, and OEM requirements available on request. Contact us with your engine model and vessel specifications for a tailored recommendation.

Ordering information

Supplied in protective wooden-box packing for safe global transport. Warranty: 1 Year / 1500 hrs. Please confirm engine model, power, and required reduction ratio when ordering.

Frequently asked questions