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2V91Y-F Piston Assy - Model MICF0JYV-04000B
High-quality piston assembly for CFMoto CForce 1000 ATV with 2V91Y-F engine. Complete kit includes piston ring kit, piston pin, circlip, and all necessary components. Compatible with CForce 1000 TOURING, OVERLAND, and MV models. OEM part 0JYV-040002-5000. Premium replacement parts for optimal engine performance.  CFMoto CForce 1000 Piston Assembly 2V91Y-F 0JYV-040002-5000 Ring Kit Pin Circlip | Mortch 

2V91Y-F Piston Assy

  • Brand: Mortch Motor
  • Product Code: MICF0JYV-04000B
  • Product Viewed: 219
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  • Availability: In Stock
  • Weight: 0.51kg
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  • US$33.60


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CFMoto 2V91Y-F Piston Assy

Part Numbers: 0JYD-0400A0 / 0JYV-040002-5000-Q0-00002 etc.

Product Type: Engine Piston Assembly | Piston Kit

Fitment: CFMoto 1000cc ATV (2V91Y-F Series)

OEM-specification 2V91Y-F piston assembly, including piston, piston rings, piston pin, and circlips. Manufactured from high-strength aluminum alloy with precision machining, ensuring perfect fit with the cylinder and maintaining engine compression ratio and power output.

📋 Product Overview

This product is a genuine quality CFMoto 2V91Y-F Piston Assembly, including the following components:

Part Number Description Quantity
0JYD-0400A0 Piston Ring Kit 1 set
0800-040005 Piston Pin Circlip 2 pcs
0JYV-040002-5000-Q0-00002 Piston 1 pc
0800-040002-00001 Piston Pin 1 pc

This piston assembly is manufactured from high-strength aluminum alloy through precision casting and machining, offering excellent strength, wear resistance, and thermal conductivity. The piston is the core reciprocating component of the engine,承受ing the high temperatures and pressures of combustion and converting them into mechanical energy. Piston rings provide sealing, preventing gas leakage and oil from entering the combustion chamber. The piston pin connects the piston to the connecting rod, transmitting power.

🔧 Genuine Quality Assurance: All components are manufactured strictly according to CFMoto OEM technical standards. Dimensions, material quality, and machining precision are identical to the original parts, ensuring perfect fitment and reliable durability.

📐 Specifications

Product Name:

Piston Assembly

Engine Series:

2V91Y-F

Displacement:

1000cc

Material:

High-Strength Aluminum Alloy

🔧 Complete Fitment Model List
🏍️ ATV Models - 1000cc (2V91Y-F)
  • ATV CF1000ATR-2 CForce 1000 TOURING 2V91Y-F
  • ATV CF1000ATR-2(GD) CForce 1000 TOURING 2V91Y-F
  • ATV CF1000ATR-2(HLG) CForce 1000 TOURING 2V91Y-F
  • ATV CF1000ATR-2(SS) CForce 1000 TOURING 2V91Y-F
  • ATV CF1000ATR-2A CForce 1000 OVERLAND 2V91Y-F
  • ATV CF1000ATR-2A(GD) CForce 1000 OVERLAND 2V91Y-F
  • ATV CF1000ATR-2A(HLG) CForce 1000 OVERLAND 2V91Y-F
  • ATV CF1000ATR-2A(SS) CForce 1000 2V91Y-F
  • ATV CF1000ATR-3 CForce 1000 MV 2V91Y-F
  • ATV CF1000ATR-3(GD) CForce 1000 MV 2V91Y-F
  • ATV CF1000ATR-3(SS) CForce 1000 MV 2V91Y-F
  • ATV CF1000ATR-3L CForce 1000 2V91Y-F
  • ATV CF1000ATR-3L(GD) CForce 1000 2V91Y-F
  • ATV CF1000ATR-3L(HLG) CForce 1000 2V91Y-F
  • ATV CF1000ATR-4L CForce 1000 2V91Y-F
  • ATV CF1000AU-2 CForce 1000 TOURING 2V91Y-F
  • ATV CF1000AZ-2 CForce 1000 TOURING 2V91Y-F
  • ATV CF1000AZ-2(AU) CForce 1000 TOURING 2V91Y-F
  • ATV CF1000AZ-2(CA) CForce 1000 TOURING 2V91Y-F
  • ATV CF1000AZ-2(RU) CForce 1000 TOURING 2V91Y-F
  • ATV CF1000AZ-2(ST) CForce 1000 TOURING 2V91Y-F
  • ATV CF1000AZ-2(US) CForce 1000 TOURING 2V91Y-F
  • ATV CF1000AZ-2A CForce 1000 OVERLAND 2V91Y-F
  • ATV CF1000AZ-2A(AU) CForce 1000 OVERLAND 2V91Y-F
  • ATV CF1000AZ-2A(CA) CForce 1000 OVERLAND 2V91Y-F
  • ATV CF1000AZ-2A(ST) CForce 1000 OVERLAND 2V91Y-F
  • ATV CF1000AZ-2A(US) CForce 1000 OVERLAND 2V91Y-F
  • ATV CF1000AZ-3 CForce 1000 MV 2V91Y-F
  • ATV CF1000AZ-3(AU) CForce 1000 MV 2V91Y-F
  • ATV CF1000AZ-3(RU) CForce 1000 MV 2V91Y-F
  • ATV CF1000AZ-3(ST) CForce 1000 MV 2V91Y-F

📌 Fitment Note: This 2V91Y-F Piston Assembly fits all CFMoto 1000cc ATV models listed above. Please verify your specific model is listed before purchasing. If your model is not listed, please contact our customer service with your VIN for confirmation.

⚙️ Product Functions
  • Withstands Combustion Pressure: The piston crown directly承受s the high temperatures and pressures of combustion, converting them into mechanical energy.
  • Reciprocating Motion: Performs high-speed reciprocating motion within the cylinder, driving the crankshaft through the connecting rod.
  • Seals Combustion Chamber: Piston rings work with the cylinder wall to seal the combustion chamber, preventing gas leakage and oil from entering.
  • Transfers Heat: Transfers most of the combustion heat through the piston rings to the cylinder wall, where it is carried away by the cooling system.
  • Guides Motion: The piston skirt contacts the cylinder wall, guiding smooth piston motion and承受ing side forces.
✅ Fault Indications: Common signs of piston or piston ring wear/damage include:
• Engine burning oil, blue smoke from exhaust;
• Loss of power, low compression;
• Engine knocking noise;
• Excessive oil consumption;
• Heavy carbon deposits on spark plugs.
If you encounter these issues, inspect and replace the piston assembly promptly.
✅ Installation Tip: Thoroughly clean the cylinder and piston before installation. When installing piston rings,注意 ring orientation and gap positioning, with gaps staggered. Carefully install the piston pin and circlips, ensuring circlips are fully seated in their grooves. Use a ring compressor when installing the piston into the cylinder to avoid damaging the cylinder wall. Professional installation by an experienced technician is highly recommended.
⚠️ Important Notice: This product is a CFMoto 2V91Y-F Piston Assembly, including parts 0JYD-0400A0, 0800-040005, 0JYV-040002-5000-Q0-00002, and 0800-040002-00001. It is applicable for the 1000cc ATV models listed above. Minor variations may exist between different model years or production batches. If your specific model is not listed, please contact our customer service with your VIN for compatibility verification. Images are for reference only; the actual product may vary.
🔧 Compatibility Notice
  • Please verify that this part fits your specific vehicle model and year. Many vehicles share similar names but use different components depending on year or market region.
  • We strongly recommend cross-checking with your vehicle's owner's manual or contacting us for confirmation before placing your order.
📄 Product Disclaimer
  • Product images, measurements, and descriptions are for reference only. Slight variations in color or appearance may occur due to manufacturing batches or photography lighting—functional specifications remain identical to the ordered part.
  • Professional installation is mandatory. Mortch Motor assumes no liability for damages, injuries, or losses resulting from improper installation, misuse, unauthorized modification, or abnormal operation.
💰 Import Duties & Taxes
  • All listed prices EXCLUDE shipping costs, import duties, taxes, and customs clearance fees. These charges (if applicable) are determined and collected by your local customs authority and are solely the buyer's responsibility.
  • In case of return due to unpaid duties/taxes or refusal to clear customs, the buyer shall bear the original shipping cost, return shipping fees, and any associated administrative charges deducted from the refund.
📌 Order Confirmation: By completing your purchase, you acknowledge that you have read, understood, and agreed to all terms above. For any questions, please contact our support team prior to ordering.

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