Aftermarket Mercury Outboard 85653A87 Powerhead Gasket Set
The Sierra 18-4356 Powerhead Gasket Set is an aftermarket replacement for Mercury 85653A87, designed for 90HP and 115HP 6-cylinder Mercury outboards. It includes the gaskets, O-rings and fuel-pump service components required when removing, refitting or rebuilding the powerhead. Head gaskets are not included.
Technical Specifications
- Brand: Sierra Marine
- Sierra Part Number: 18-4356
- Product Type: Gasket Set
- Application: Mercury Outboard
Kit Contents
- Seal
- Gasket, Water Pump Base - Sierra 18-2826-9
- Gasket
- Water Jacket Cover Gasket - Sierra 18-2573
- Gasket
- Gasket, Exhaust Cover - Sierra 18-2574-9
- Gasket, Plate to Drive Shaft Housing
- Gasket, Baffle Plate - Sierra 18-2839-9
- Powerhead Base Gasket - Sierra 18-2835
- O-Ring - Sierra 18-7161-9
- Block Cover Gasket - Sierra 18-2807-9
- O-Ring - Sierra 18-7153-9
- Transfer Port Gasket - Sierra 18-0946
- O-Ring - Sierra 18-7173-9
- Crankcase Gasket - Sierra 18-2515
- O-Ring - Sierra 18-7162-9
- Carburetor Mounting Gasket - Sierra 18-2802-9
- O-Ring - Sierra 18-7167-9
- Drive Shaft Housing Plate Gasket - Sierra 18-0912
- O-Ring - Sierra 18-7164-9
- Gasket, Water Pump - Sierra 18-2915-9
- O-Ring - Sierra 18-7413-9
- Gasket, Water Pump - Sierra 18-2914-9
- O-Ring - Sierra 18-7426-9
- Gasket, Water Pump - Sierra 18-2801-9
- O-Ring - Sierra 18-7157
- Fuel Pump Kit - Sierra 18-7817
- O-Ring - Sierra 18-7120
- Fuel Pump Kit - Sierra 18-7813
- O-Ring - Sierra 18-7421
- Fuel Pump Kit - Sierra 18-7807
- Water Pump Housing Bushing - Sierra 18-3110
Mercury Outboard Suitability
- 90HP & 115HP 6-Cylinder: Mercury Outboards
Cross References & Alternative Products
- GLM: 39550
- Mercury: 27-60476A72
- Mercury: 27-60476A73
- Mercury: 27-60476A74
- Mercury: 27-60476A75
- Mercury: 27-85653A32
- Mercury: 27-85653A79
- Mercury: 27-85653A87
- Mercury: 85653A87
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
Frequently Asked Questions
What is Sierra 18-4356?
Sierra 18-4356 is an aftermarket gasket set for Mercury Outboard applications.
Which part numbers cross-reference Sierra 18-4356?
This listing cross-references GLM 39550, Mercury 27-60476A72, Mercury 27-60476A73 and Mercury 27-60476A74. See the Cross References & Alternative Products section above for linked alternatives where available.
How can I check whether Sierra 18-4356 fits my Mercury Outboard application?
Contact us with your engine model and serial number and we'll help check suitability.
Australian Dollars
