YS Parts No.OEM Parts No.Fit for EngineSize and SpecificationCategory
YS18-274818-2748Sierra 18-2748 Exhaust Boot Replaces 32-44348001Sierra 18-2748 Mercruiser 4" Upper Exhaust Boot
Sierra high-quality engine parts are designed to meet OEM specifications. For use on Mercruiser Stern Drive engines.

Upper Tube: 4"
Fits MCM 120, 140 & GM V-6 & V-8 engines
Use with: 18-1975-1 Riser with Exhaust Tube

Interchangeable with:

GLM
89120
Mallory
9-72805
Mercruiser Stern Drive
32-44348T
32-44348001
32-44348		MERCRUISER WATER SHUTTER & EXHAUST TUBES
YS18-2732-918-2732-9Sierra 18-2732-9 Water Shutter (2Pk) Replaces 807166A3Mercruiser Water Shutters by Sierra (2 Pack)

Used on Mercruiser engines

THIS PART NUMBER IS FOR 2 SHUTTERS
For 1 Shutter order SIE-18-2732


Replaces:

Mercruiser
1438A1,14348,14348A2,807166A3
Mallory
9-42802
GLM
89170
Pro Marine
65166
Redline
89170		MERCRUISER WATER SHUTTER & EXHAUST TUBES
YS18-273218-2732Sierra 18-2732 Water Shutter Replaces 807166A3Mercruiser Water Shutter by Sierra
Used on Mercruiser engines

THIS PART NUMBER IS FOR 1 SHUTTER
For 2 Shutters order SIE-18-2732-9
Replaces:

Mercury - 807166A3
Mallory - 9-42802
GLM - 89170
Pro Marine - 65166		MERCRUISER WATER SHUTTER & EXHAUST TUBES

MERCRU~1 by Marine Parts China on Scribd