SY Series (Shaftdrive)

SY Series (Shaftdrive)

Introduction

SY Series (Shaftdrive)

Yanmar SY Series Marine Diesel Engine
(654 - 720 - 900hp)

Yanmar's renowned technology for building lightweight high-performance diesels now includes big power engines displacing up to 16 litres. The all new 8SY-900 at 900hp (662kW), the 6SY-720 at 720hp (530kW) & the 6SY-650 at 654hp (481kw) are the latest additions to the range of Yanmar engines for luxury craft.

Discerning boaters expect their new cruisers and motor yachts to be built with vision and pride. They want nothing but the best from bow to stern.

And therein lies a fundamental key to Yanmar's continued success with its big power diesels and their extra performance. These state-of-the-art propulsion systems assure you of maximum enjoyment, wherever your boating takes you.

Yanmar engines are true pearls of the ocean, cultivated to give you the freedom to pursue those personal dreams.

Higher power from low weight
Built for thorough reliability
Compact dimensions
State-of-the-art electronics
Optimised output
Fuel efficient
Fresh water cooled
Low emissions
Easy to service
Worldwide support

Yanmar 6SY-720

Yanmar 8SY-900

Dual Electronic Control & LCD Screen

Specifications

	6SY-650	6SY-720	8SY-900
Type	4-stroke, vertical, water cooled diesel engine
Cylinders	6 in-line	6 in-line	V8-type 90°
Maximum Power	654 @ 2300rpm	720 @ 2300rpm	900 @ 2300rpm
Continuous Power	479 @ 2100rpm	550 @ 2100rpm	655 @ 2100rpm
Cooling System	Fresh water cooling by centrifugal fresh water pump and rubber impeller seawater pump
Bore x Stroke	127 x 154mm
Displacement	11.7 litres	11.7 litres	15.6 litres
Dry Weight (Engine only)	1150 kg	1150 kg	1650 kg

Accessories

Standard Package

Alternator
Protection cover for belt transmission
Transmission oil cooler
Water level sensor
Engine control harness
Engine control components including:
- Control lever
- LCD display
- Backup throttle control system

Optional