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YANMAR - N21 -SEAT SPRING - 146673-51170

The Seat Spring is a precision component used in the fuel injection system of YANMAR N21 / 6N21 / 8N21 marine diesel engines. It provides controlled spring force to maintain the correct seating position of associated fuel system components, ensuring accurate fuel delivery and stable engine performance.

Designed for continuous marine engine operation, this spring helps maintain injection system reliability, supports efficient combustion, and contributes to smooth engine running under varying load conditions.

YANMAR - N21 - SEAT SPRING - 146673-51170
Home Engine Parts Other Ship Machineries YANMAR - N21 - SEAT SPRING - 146673-51170
Brand
Yanmar
Category
Engine Parts
Subcategory
Other Ship Machineries
Part Number
146673-51170

Description

MAKE : YANMAR
TYPE : N21 / 6N21 / 8N21

PART NAME : SEAT SPRING
PART NUMBER : 146673-51170

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, 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 spring is manufactured from premium-grade spring steel with excellent elasticity, fatigue resistance, and dimensional stability. Operating under repeated compression cycles, vibration, fuel pressure variations, and elevated temperatures, it maintains consistent seating force and precise component positioning. This ensures reliable fuel injection performance, improved combustion efficiency, reduced wear, and enhanced durability of YANMAR N21, 6N21, and 8N21 marine diesel engine fuel systems.

Technical Specifications

  • MAKE : YANMAR
  • TYPE : N21 / 6N21 / 8N21
  • PART NAME : SEAT SPRING
  • PART NUMBER : 146673-51170
  • CATEGORY : FUEL INJECTION SYSTEM COMPONENT
  • APPLICATION : YANMAR N21 / 6N21 / 8N21 DIESEL ENGINE
  • FUNCTION : Provides controlled spring force to maintain proper seating and positioning of fuel system components
  • MATERIAL : HIGH-GRADE SPRING STEEL
  • CONDITION : GENUINE / NEW / 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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