Yanmar YANMAR - N21 -SEAT RETURN VALVE - 146673-51360
The Seat Return Valve is a precision fuel system component used in YANMAR N21 / 6N21 / 8N21 marine diesel engines to provide a sealing surface for the return valve assembly. It helps regulate fuel return flow and maintains proper pressure balance within the fuel injection system.
Designed for marine diesel engine fuel systems, this component ensures stable fuel circulation, reliable injection performance, and efficient engine operation under varying load and operating conditions.
Brand
Yanmar
Category
Engine Parts
Subcategory
Other Ship Machineries
Part Number
146673-51360
Description
MAKE : YANMAR
TYPE : N21 / 6N21 / 8N21
PART NAME : SEAT RETURN VALVE
PART NUMBER : 146673-51360
OTHER SPARES :
CYLINDER HEAD, CYLINDER LINER, PISTON, PISTON RING, CONNECTING ROD, CRANKSHAFT, MAIN BEARING, THRUST BEARING, CAMSHAFT, CAMSHAFT GEAR, ROCKER ARM, EXHAUST VALVE, INLET VALVE, FUEL INJECTION PUMP, FUEL INJECTOR, DELIVERY VALVE, RETURN VALVE, PLUNGER, GOVERNOR PARTS, LUBE OIL PUMP, WATER PUMP, AIR COOLER, TURBOCHARGER, GASKET KIT, OVERHAUL KIT, O-RING, SEAL RING, BUSH, BEARING, FASTENERS AND OTHER ENGINE COMPONENTS.
ENGINEX MARINE is a well-known supplier of YANMAR marine diesel engine spare parts, covering models such as NY16, N18, N21, M200, M220, T220, T240, T260, N165, S165, S185, Z280, N260, N280, N330, HAL, EY18, EY22, EY26, and EY17.
The seat return valve is manufactured from precision-machined hardened alloy steel with excellent wear resistance and dimensional accuracy. Operating under continuous fuel pressure, flow variations, vibration, and temperature fluctuations, it provides a reliable sealing interface for the return valve mechanism. This ensures controlled fuel return, stable system pressure, reduced leakage, and improved fuel injection efficiency in YANMAR N21, 6N21, and 8N21 marine diesel engines.
TYPE : N21 / 6N21 / 8N21
PART NAME : SEAT RETURN VALVE
PART NUMBER : 146673-51360
OTHER SPARES :
CYLINDER HEAD, CYLINDER LINER, PISTON, PISTON RING, CONNECTING ROD, CRANKSHAFT, MAIN BEARING, THRUST BEARING, CAMSHAFT, CAMSHAFT GEAR, ROCKER ARM, EXHAUST VALVE, INLET VALVE, FUEL INJECTION PUMP, FUEL INJECTOR, DELIVERY VALVE, RETURN VALVE, PLUNGER, GOVERNOR PARTS, LUBE OIL PUMP, WATER PUMP, AIR COOLER, TURBOCHARGER, GASKET KIT, OVERHAUL KIT, O-RING, SEAL RING, BUSH, BEARING, FASTENERS AND OTHER ENGINE COMPONENTS.
ENGINEX MARINE is a well-known supplier of YANMAR marine diesel engine spare parts, covering models such as NY16, N18, N21, M200, M220, T220, T240, T260, N165, S165, S185, Z280, N260, N280, N330, HAL, EY18, EY22, EY26, and EY17.
The seat return valve is manufactured from precision-machined hardened alloy steel with excellent wear resistance and dimensional accuracy. Operating under continuous fuel pressure, flow variations, vibration, and temperature fluctuations, it provides a reliable sealing interface for the return valve mechanism. This ensures controlled fuel return, stable system pressure, reduced leakage, and improved fuel injection efficiency in YANMAR N21, 6N21, and 8N21 marine diesel engines.
Technical Specifications
- MAKE : YANMAR
- TYPE : N21 / 6N21 / 8N21
- PART NAME : SEAT RETURN VALVE
- PART NUMBER : 146673-51360
- CATEGORY : FUEL INJECTION SYSTEM COMPONENT
- APPLICATION : YANMAR N21 / 6N21 / 8N21 DIESEL ENGINE
- FUNCTION : Provides the sealing seat for the return valve and regulates fuel return flow within the injection system
- MATERIAL : HARDENED ALLOY STEEL
- CONDITION : GENUINE / NEW / RECONDITIONED
- INDUSTRY : MARINE, INDUSTRIAL AND POWER GENERATION
