Piston Assy

Brand: Mortch Motor
Product Code: MICF0JYA-0400A0

Product Viewed: 322

Availability: In Stock

Weight: 0.48kg

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CFMoto Piston Assy

Part Number: 0JYA-0400A0

Product Type: Engine Piston Assembly | Piston Kit

Specifications: Piston Diameter 91mm | Piston Pin 22*56mm

Fitment: CFMoto 400cc/500cc/600cc/800cc/1000cc Series ATV/SSV/UTV

OEM-specification piston assembly suitable for multiple CFMoto models. Includes 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 Piston Assembly, part number 0JYA-0400A0. This piston assembly is suitable for multiple CFMoto models and includes the following components:

Part Number	Description	Specification
0800-040005	Piston Pin Circlip	2 pcs
0800-040002	Piston Pin	22*56mm
0800-0400A0	Piston Ring Set	1 set
0JYA-040001-00010(00020)	Piston	91mm

Installation Direction Note:

Front Cylinder Piston: Mark on piston must face the intake side
Rear Cylinder Piston: Mark on piston must face the exhaust side

Piston marks I and II are interchangeable.

The piston is the core reciprocating component of the engine, withstands the high temperatures and pressures of combustion and converting them into mechanical energy. This piston assembly is manufactured from high-strength aluminum alloy through precision casting and machining, offering excellent strength, wear resistance, and thermal conductivity.

🔧 Genuine Quality Assurance: 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

Part Number:

0JYA-0400A0

Piston Diameter:

91mm

Piston Pin:

22*56mm

Material:

High-Strength Aluminum Alloy

🔧 Complete Fitment Model List

🏍️ 400cc ATV Models (191Q)

ATV CF400ATR-2L/2S CForce 450L/450S 191Q (including T3a/T3b/SS/HLG/KSR/GD variants)
ATV CF400ATR-3L/3S CForce 450L/450 191Q (including T3a/T3b/SS/HLG/KSR/GD variants)
ATV CF400ATR-4L/4S GOES TERROX 400L/400S 191Q (including SS variant)
ATV CF400ATR-L CForce 450L 191Q
ATV CF400AU CForce 400S/450S 191Q (including AU/CA/US/X4 Police variants)
ATV CF400AU-2L/2S IRON MAX L7e / IRON L7e 191Q
ATV CF400AU-3L/3S CForce 450L/450S 191Q-A (including GD/HLG/KSR/Fire variants)
ATV CF400AU-3LH/3SH CForce 450L/450S 191Q
ATV CF400AU-6S CForce 450S 191Q (including US variant)
ATV CF400AU-A CForce 450S 191Q (including HLG/KSR variants)
ATV CF400AU-B CForce 450L 191Q (including HLG/KSR variants)
ATV CF400AU-G GOES TERROX 400S 191Q
ATV CF400AU-L CForce 400L/450L 191Q (including CA/RU variants)
ATV CF400AU-LA GOES TERROX 400L 191Q
ATV CF400AU-LF CForce 450L 191-A (KSR)
ATV CF400AU-SF CForce 450S 191Q-A (including GD/HLG/KSR variants)
ATV CF400ATR CForce 450 191Q
ATV CF400ATR-5L/5S IRON MAX T3 / IRON T3 191Q (including T3b variant)
ATV CF400AZ-3L CForce 400 TOURING/CForce 450 L 191Q (including CA/RU/ST/Fire variants)
ATV CF400AZ-3S CForce 400/CForce 450 191Q (including AU/CA/ST/US variants)
ATV CF400AZ-6L/6S CForce 450L/450S 191Q (including CA/US/Classic variants)

🏍️ 500cc ATV/SSV/UTV Models (191R/191R-X550/191R-E/191R-C/191R-Z550/191R-U550)

ATV CF500ATR CForce 520 191R-X550
ATV CF500ATR-2L/2S CForce 520L/520S 191R-X550 (including T3a/T3b/SS/HLG/KSR/GD variants)
ATV CF500ATR-2LC/2SC CForce 520L/520S 191R
ATV CF500ATR-3 CForce 520 191R-X550 (including T3a variant)
ATV CF500ATR-5L/5S COBALT MAX T3 / COBALT T3 191R (including T3b variant)
ATV CF500ATR-9L/9S CForce 520 L / CForce 550 191R-E (including T3a/T3b/SS/HLG/KSR/GD variants)
ATV CF500ATR-11L/11S GOES TERROX 500L/500S 191R (including SS variant)
ATV CF500ATR-A CForce 550 191R-X550
ATV CF500AU-6B/6L CForce 550 191R-C / 191R-X550 (including CA variant)
ATV CF500AU-7A/7C/7L/7S CForce 520S/520L/520 S 191R (including HLG/KSR/AU/CA/US variants)
ATV CF500AU-7LF/7SF CForce 520L / CForce 500S/CForce 520S 191R-E (including HLG/KSR/GD variants)
ATV CF500AU-8L/8S COBALT MAX L7e / COBALT L7e 191R-C
ATV CF500AU-9S/9L CForce 520/CForce 500 / CForce 520 L 191R-E (including GD/HLG/KSR/RU/ST variants)
ATV CF500AU-9LH/9SH CForce 520 L / CForce 520 191R-E
ATV CF500AU-10S CForce 500 S 191R (including US variant)
ATV CF500AZ-9S CForce 500/CForce 520 191R (including AU/CA/US variants)
ATV CF500AZ-10S CForce 500 S / CForce 500 191R (including CA/US variants)
ATV CF500AU-7LA/7SA GOES TERROX 500L/500S 191R
SSV CF500US ZForce 500 Trail 191R-Z550 (including CA/US variants)
SSV CF500US-EX / CF500UTR ZForce 550EX 191R-Z550 (including T1a/T1b/SS/GD variants)
UTV CF500UTR-2 / CF500UU UForce 550 / UForce 500 191R-U550 (including GD/CA/US variants)

🏍️ 600cc ATV/UTV Models (191S/191S-A/191S-B/191S-U6)

ATV CF600ATR-2L CForce 625 Touring 191S (including T3b/GD/HLG/KSR/SS variants)
ATV CF600ATR-2LC CForce 625 Touring 191S-B (including GD/HLG/KSR/SS variants)
ATV CF600ATR-2S CForce 625 191S (including T3b/GD/HLG/KSR/SS variants)
ATV CF600ATR-2SC CForce 625 191S-B (including GD/SS variants)
ATV CF600ATR-L CForce 625 / CForce 600 191S (including T3a/T3b/GD variants)
ATV CF600AU-3L CForce 600 Touring/625 Touring 191S (including AU/CA/RS/US/HLG/KSR variants)
ATV CF600AU-3LA CForce 600 Touring/625 Touring 191S-B (including AU/RS/ST/US variants)
ATV CF600AU-3LF CForce 600 Touring/625 Touring 191S-A (including GD/HLG/KSR variants)
ATV CF600AU-3LH CForce 600 Touring/625 Touring 191S-A
ATV CF600AU-3S CForce 600/625 191S (including AU/CA/RS/US/HLG/KSR variants)
ATV CF600AU-3SA CForce 625 EPS 191S-B (including AU/RS/ST/US variants)
ATV CF600AU-3SF CForce 600 191S-A (including HLG/KSR variants)
ATV CF600AU-3SH CForce 600 191S
ATV CF600AU-L CForce 600 EPS / CForce 600 191S (including EU168/INTERNATIONAL/US/X6 Police variants)
ATV CF600AZ-3L CForce 600 191S (including CA/US variants)
ATV CF600AZ-3LA CForce 600 Touring 191S-B (including CA/US variants)
ATV CF600AZ-3S CForce 600 191S-B (including CA/US variants)
ATV CF600AZ-3SA CForce 600 191S-B (including CA/US variants)
UTV CF600UTR UForce 600 191S-U6 (including T1b/GD/HLG/KSR/SS variants)
UTV CF600UU UForce 600 191S-U6 (including AU/ST/US/Police variants)
UTV CF600UZ UForce 600 191S-U6 (including CA/US variants)

🏍️ 800cc ATV/SSV/UTV Models (2V91W/2V91W-A/2V91W-B/2V91W-D/2V91W-G/2V91W-S)

ATV CF800-2 X8 2V91W(X8)
ATV CF800ATR CForce 800 2V91W(X8)
ATV CF800ATR-2 CForce 800 2V91W
ATV CF800AU-2B CForce 800 2V91W-S
ATV CF800ATR-3 CForce 850XC 2V91W-A (including GD/HLG/KSR/SS variants)
ATV CF800AU-2A CForce 850XC / CForce 800XC 2V91W-A (including AU/CA/RS/ST/US/HLG/KSR/Government variants)
ATV CF800AZ-2A CForce 800XC 2V91W-A (including CA/US variants)
ATV CF800AU-2AF CForce 800XC/CForce 850XC 2V91W-D (including HLG/KSR variants)
SSV CF800 ZForce 800EX 2V91W(Z8) (including CA/US variants)
SSV CF800US-A ZForce 800 Trail 2V91W(Z8) (including CA/US variants)
SSV CF800UTR ZForce Z8-EX 2V91W
SSV CF800SU-2 / CF800SZ-2 ZForce 800 Trail 2V91W-B (including AU/CA/ST/US variants)
SSV CF800SU-3 ZForce 800 SPROT 2V91W-G
UTV CF800-3 UForce 800 2V91W(U8) (including CA/US variants)
UTV CF800UTR-2 UForce 800 2V91W (including GD/HLG/KSR/SS variants)
UTV CF800UU-A UForce 800 2V91W(U8) (including AU/HLG/KSR variants)

🏍️ 1000cc ATV/SSV/UTV Models (2V91Y-X10/2V91Y-C/2V91Y-Z10/2V91Y-Z1000/2V91Y-U10)

ATV CF1000ATR CForce 1000 2V91Y-X10 (including GD/HLG/KSR/SS variants)
ATV CF1000AU CForce 1000 EPS Overland 2V91Y-X10 (including AU/CA/RS/ST/US/Government variants)
ATV CF1000AU-F CForce 1000 2V91Y-C (including GD/HLG/KSR variants)
ATV CF1000AZ CForce 1000 Overland 2V91Y-C (including CA/US variants)
SSV CF1000US ZForce 1000EX 2V91Y-Z10 (including AU/RS variants)
SSV CF1000US-2 ZForce 1000 2V91Y-Z1000 (including CA/US variants)
SSV CF1000US-A ZForce 950 Sport/ZForce 1000 Sport 2V91Y-Z10 (including CA/US variants)
SSV CF1000UTR-2 ZForce 1000 2V91Y-Z1000 (including GD variant)
SSV CF1000UTR-B ZForce 1000 Sport 2V91Y-Z10 (including GD/HLG/KSR/SS variants)
UTV CF1000UTR-3 UForce 1000 2V91Y-U10 (including GD/HLG/KSR/SS variants)
UTV CF1000UTR-5 UForce 1000 XL 2V91Y-U10 (including GD/HLG/KSR/SS variants)
UTV CF1000UU UForce 1000 2V91Y-U10 (including AU/CA/RS/ST/US/Hunter variants)
UTV CF1000UU-2 UForce 1000 XL 2V91Y-U10 (including AU/RS/ST/US/Police variants)
UTV CF1000UZ UForce 1000 2V91Y-U10 (including CA/US variants)
UTV CF1000UZ-2 UForce 1000 XL 2V91Y-U10 (including CA/US variants)
UTV CF1000UZ-2A UForce 1000 2V91Y-U10 (including US variant)
UTV CF1000UZ-A UForce 1000 2V91Y-U10 (including US variant)
UTV CM1000UZ-2A UForce 1000 XL Alpine 2V91Y-U10 (including CA/US variants)
UTV CM1000UZ-A UForce 1000 Alpine 2V91Y-U10 (including US variant)

📌 Fitment Note: This Piston Assembly (Part Number 0JYA-0400A0) fits all CFMoto 400cc-1000cc ATV, SSV, and UTV models listed above. Please observe the front and rear cylinder installation direction requirements. Piston marks I and II are interchangeable. If your specific model is not listed, please contact our customer service with your VIN for confirmation.

⚙️ Product Functions

Withstands Combustion Pressure: The piston crown directly withstands 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: Works with piston rings to seal the combustion chamber, preventing gas leakage.
Transfers Heat: Transfers most of the combustion heat 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 withstands 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, pay attention to ring orientation and gap positioning, with gaps staggered. Carefully install the piston pin and circlips, ensuring circlips are fully seated in their grooves. Pay attention to front and rear cylinder installation direction requirements. 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 Piston Assembly, part number 0JYA-0400A0, piston diameter 91mm, piston pin 22*56mm. It is applicable for the 400cc-1000cc ATV, SSV, and UTV models listed above. Pay attention to front and rear cylinder installation direction requirements during installation. 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.