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YANMAR - N21 -SEAT LOWER - 139653-14420

The Seat Lower is a precision support component used in YANMAR N21 / 6N21 / 8N21 marine diesel engines to provide a stable seating surface for associated engine assemblies, springs, valves, or mechanical components. It ensures correct positioning and load distribution during engine operation.

Designed for continuous marine service, this component helps maintain assembly alignment, reduces wear, and supports the reliable performance of YANMAR N21, 6N21, and 8N21 marine diesel engines.

YANMAR - N21 - SEAT LOWER - 139653-14420
Home Engine Parts Other Ship Machineries YANMAR - N21 - SEAT LOWER - 139653-14420
Brand
Yanmar
Category
Engine Parts
Subcategory
Other Ship Machineries
Part Number
139653-14420

Description

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

PART NAME : SEAT LOWER
PART NUMBER : 139653-14420

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, VALVE SEAT, VALVE SPRING, 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 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 lower seat is manufactured from high-strength alloy steel or wear-resistant engineering material to withstand continuous mechanical loading, vibration, thermal cycling, and operational stresses. Precision-machined for accurate fitment, it provides stable support and proper alignment of associated engine components, improving durability, reducing wear, and enhancing the operational reliability of YANMAR N21, 6N21, and 8N21 marine diesel engine systems.

Technical Specifications

  • MAKE : YANMAR
  • TYPE : N21 / 6N21 / 8N21
  • PART NAME : SEAT LOWER
  • PART NUMBER : 139653-14420
  • CATEGORY : ENGINE SUPPORT AND POSITIONING COMPONENT
  • APPLICATION : YANMAR N21 / 6N21 / 8N21 DIESEL ENGINE
  • FUNCTION : Provides a stable seating surface and maintains proper positioning of associated engine components
  • MATERIAL : HIGH-STRENGTH ALLOY STEEL / WEAR-RESISTANT ENGINEERING METAL
  • 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-EN8N21L-SV 6N21AL-EN

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