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YANMAR - N21 - ADJUSTINGSCREW ROCKER ARM - 139653-11261

The ADJUSTING SCREW ROCKER ARM (Part No. 139653-11261) is a precision valve train component used in YANMAR N21 marine diesel engines. It is designed to accurately set valve clearance by adjusting the rocker arm position, ensuring proper valve timing, efficient combustion, and smooth engine performance. This component is suitable for YANMAR N21, 6N21, and 8N21 marine diesel engines.

YANMAR - N21 - ADJUSTING SCREW ROCKER ARM - 139653-11261
Home Engine Parts Other Ship Machineries YANMAR - N21 - ADJUSTING SCREW ROCKER ARM - 139653-11261
Brand
Yanmar
Category
Engine Parts
Subcategory
Other Ship Machineries
Part Number
139653-11261

Description

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

PART NAME : ADJUSTING SCREW ROCKER ARM
PART NUMBER : 139653-11261

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 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 ADJUSTING SCREW ROCKER ARM is manufactured from hardened alloy steel with precision threading and surface treatment to ensure accurate valve clearance adjustment and long-term durability. It is engineered to withstand continuous vibration, high-temperature engine operation, and repetitive mechanical loading within the valve train system. Its robust design ensures stable valve timing, improved combustion efficiency, reduced wear on valve components, and reliable performance of YANMAR N21, 6N21, and 8N21 marine diesel engines in demanding marine environments.

Technical Specifications

  • MAKE : YANMAR
  • TYPE : N21 / 6N21 / 8N21
  • PART NAME : ADJUSTING SCREW ROCKER ARM
  • PART NUMBER : 139653-11261
  • CATEGORY : VALVE TRAIN ADJUSTMENT COMPONENT
  • APPLICATION : YANMAR N21 / 6N21 / 8N21 DIESEL ENGINE
  • FUNCTION : Provides precise valve clearance adjustment through rocker arm control
  • MATERIAL : HARDENED ALLOY STEEL / CARBON 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-EN8N21L-SV 6N21AL-EN

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