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YANMAR - N21 - PISTONCOOLING NOZZLE ASSY - 747673-39400

The PISTON COOLING NOZZLE ASSY is a lubrication and cooling component in the YANMAR N21 diesel engine designed to spray lubricating oil onto the underside of the piston. It helps control piston temperature, reduce thermal stress, and improve engine durability. Proper operation of this nozzle is essential for maintaining piston stability, preventing overheating, and ensuring reliable engine performance.

YANMAR - N21 - PISTON COOLING NOZZLE ASSY - 747673-39400
Home Engine Parts Pistons YANMAR - N21 - PISTON COOLING NOZZLE ASSY - 747673-39400
Brand
Yanmar
Category
Engine Parts
Subcategory
Pistons
Part Number
747673-39400

Description

MAKE : YANMAR
TYPE : N21
PART NAME : PISTON COOLING NOZZLE ASSY
PART NUMBER : 747673-39400

OTHER SPARES :
CYLINDER HEAD, CYLINDER LINER, PISTON, PISTON RING, CONNECTING ROD, CRANKSHAFT, MAIN BEARING, CAMSHAFT, CAMSHAFT GEAR, ROCKER ARM, EXHAUST VALVE, INLET VALVE, FUEL INJECTION PUMP, FUEL INJECTOR, 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 supplies YANMAR N21 PISTON COOLING NOZZLE ASSY suitable for YANMAR N21 diesel engines. The piston cooling nozzle assembly is engineered to deliver a precisely directed jet of lubricating oil to the underside of the piston crown. This controlled oil flow helps dissipate excess heat generated during combustion, reducing piston expansion and thermal stress. Its accurate design ensures consistent cooling performance, improved lubrication efficiency, and extended engine life. This component is widely used in MARINE, INDUSTRIAL AND POWER GENERATION applications where continuous heavy-duty operation is required.

Technical Specifications

  • MAKE : YANMAR
  • TYPE : N21
  • PART NAME : PISTON COOLING NOZZLE ASSY
  • PART NUMBER : 747673-39400
  • CATEGORY : LUBRICATION / COOLING SYSTEM COMPONENT
  • APPLICATION : YANMAR N21 DIESEL ENGINE
  • FUNCTION : Sprays lubricating oil onto the underside of the piston to control temperature and reduce thermal stress during engine operation.
  • CONDITION : GENUINE / NEW / USED / RECONDITIONED
  • INDUSTRY : MARINE, INDUSTRIAL AND POWER GENERATION

Engine Compatibility

N21 8N21L-SV 8N21L-EV 8N21L-GV 8N21L-DV 8N21AL-SV 8N21AL-GV 8N21AL-EV 8N21AL-DV 8N21L-DN 8N21L-UN 8N21L-SN 8N21L-EN 8N21AL-DN 8N21AL-UN 8N21AL-SN 8N21AL-EN 6N21L-SV 6N21L-EV 6N21L-GV 6N21L-DV 6N21AL-SV 6N21AL-GV 6N21AL-EV 6N21AL-DV 6N21L-DN 6N21L-UN 6N21L-SN 6N21L-EN 6N21AL-DN 6N21AL-UN 6N21AL-SN 6N21AL-EN

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