Valve Oil Seal

Brand: Mortch Motor
Product Code: MICF0JYV-022300-4000

Product Viewed: 1670

Availability: In Stock

Weight: 0.00kg

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CFMoto Valve Stem Seal

Part Number: 0JYV-022300-4000

Product Type: Valve Stem Seal | Valve Guide Seal | Valve Train Component

Function: Prevents engine oil from entering the combustion chamber through the clearance between the valve stem and valve guide

Package Specification: 4 pieces / pack

Fits CFMoto 600cc - 1000cc ATV, SSV and UTV models, compatible with 191S-B/2V91W-F/2V91Y-D/2V91Y-F engine series

📋 Product Overview

This is a CFMoto OEM-quality valve stem seal, part number 0JYV-022300-4000. The valve stem seal is a critical sealing component in the engine valve train. It is installed on the valve guide and surrounds the valve stem. Its function is to prevent engine oil from entering the combustion chamber through the gap between the valve stem and the valve guide, while allowing the valve stem to move freely within the seal. Manufactured from high-quality rubber with a precision design, it offers excellent oil resistance, high-temperature durability, and wear resistance, ensuring long-term reliable sealing performance, preventing excessive oil consumption and blue exhaust smoke.

Product Features:

High-quality rubber, oil and heat resistant
Precision lip design for reliable sealing
Integral garter spring maintains constant sealing pressure

🔧 OEM Quality Assurance: Manufactured to strict CFMoto original technical standards. Material, dimensional accuracy and sealing performance are identical to genuine parts, ensuring perfect fit and reliable sealing.

📐 Specifications

Part Number: 0JYV-022300-4000

Product Type: Valve Stem Seal

Material: FKM / NBR rubber

Type: Single lip with spring

Package: 4 pieces / pack

Compatible Engines: 191S-B, 2V91W-F, 2V91Y-D, 2V91Y-F

🔧 Complete Fitment List

🏍️ 600/625cc Series (191S-B Engine)

ATV CF600ATR-2LC CForce 625 Touring (inc. GD/HLG/KSR/SS) 191S-B
ATV CF600ATR-2SC CForce 625 (inc. GD/SS) 191S-B
ATV CF600AU-3LA CForce 600 Touring/625 Touring (inc. AU/RU/ST/US) 191S-B
ATV CF600AU-3SA CForce 625 EPS (inc. AU/RU/ST/US) 191S-B
ATV CF600AZ-3LA CForce 600 Touring (inc. CA/US) 191S-B
ATV CF600AZ-3S CForce 600 (inc. CA/US) 191S-B
ATV CF600AZ-3SA CForce 600 (inc. CA/US) 191S-B

🏍️ 800/850cc Series (2V91W-F/K Engine)

ATV CF800AU-3 CForce 850 TOURING 2V91W-F
ATV CF800ATR-5 CForce 850 TOURING (inc. GD/HLG/SS) 2V91W-F
ATV CF800AZ-3 CForce 800 TOURING/CForce 850 TOURING (inc. AU/CA/RU/ST/US) 2V91W-F
UTV CF800UU-4 UForce 800 XL (inc. AU/ST) 2V91W-F
UTV CF800UZ-4 UForce 800 (inc. CA/US) 2V91W-F
UTV CF800UTR-4 UForce 800 XL 2V91W-K

🏍️ 1000cc Series (2V91Y-D/F Engine)

SSV CF1000SU-3 ZForce 950 TRAIL (inc. US) 2V91Y-D
SSV CF1000SU-3A ZForce 950 SPORT (inc. US) 2V91Y-D
SSV CF1000SU-3L ZForce 950 SPORT-4 (inc. US) 2V91Y-D
SSV CF1000SU-D ZForce 950 H.O.EX/ZForce 1000 Sport R (inc. AU/RU/ST/US) 2V91Y-D
SSV CF1000SU-E ZForce 950 H.0.SPORT (inc. ST) 2V91Y-D
SSV CF1000SZ-3L ZForce 950 Sport 4 (inc. AU/CA/RU/ST/US) 2V91Y-D
SSV CF1000SZ-D ZForce 950 HO EX (inc. CA/US) 2V91Y-D
SSV CF1000SZ-E ZForce 950 HO Sport (inc. CA/US) 2V91Y-D
POLICE MOTORCYCLE CF1000US-J ZForce 1000 2V91Y-D
SSV CF1000UTR-C ZForce 1000 Sport (inc. GD/HLG/KSR/SS) 2V91Y-D
SSV CF1000STR-3L ZForce 950 SPORT-4 (inc. GD/SS) 2V91Y-D(950 TRAIL/950 SPORT)
SSV CF1000SZ-3 ZForce 950 TRAIL (inc. CA/US) 2V91Y-D(950 TRAIL/950 SPORT)
SSV CF1000SZ-3A ZForce 950 SPORT (inc. AU/CA/ST/US) 2V91Y-D(950 TRAIL/950 SPORT)
SSV CF1000UTR-6(T1b) ZForce 1000 (inc. GD/HLG/KSR/SS) 2V91Y-D(950 TRAIL/950 SPORT)
ATV CF1000ATR-2 CForce 1000 TOURING (inc. GD/HLG/SS) 2V91Y-F
ATV CF1000ATR-2A CForce 1000 OVERLAND (inc. GD/HLG/SS) 2V91Y-F
ATV CF1000ATR-3 CForce 1000 MV (inc. GD/SS) 2V91Y-F
ATV CF1000AU-2 CForce 1000 TOURING 2V91Y-F
ATV CF1000AZ-2 CForce 1000 TOURING (inc. AU/CA/RU/ST/US) 2V91Y-F
ATV CF1000AZ-2A CForce 1000 OVERLAND (inc. AU/CA/ST/US) 2V91Y-F
ATV CF1000AZ-3 CForce 1000 MV (inc. AU/RU/ST) 2V91Y-F
ATV CF1000ATR-3L CForce 1000 (inc. GD/HLG) 2V91Y-F

📌 Fitment Note: This valve stem seal fits all CFMoto models listed above. Parentheses indicate country codes or technical variants (e.g., GD, HLG, KSR, SS, AU, CA, US, RU, ST, etc.). This part is universal across all variants. Please verify according to your vehicle model and engine type. If your vehicle is not listed, contact customer service for confirmation.

⚙️ Product Features

OEM Match: Part number 0JYV-022300-4000 corresponds exactly to the CFMoto official parts system, ensuring a direct replacement.
High-Quality Rubber: Made from premium FKM or NBR rubber, offering excellent oil resistance, high-temperature durability, and aging resistance.
Integral Garter Spring: The lip is equipped with a garter spring to maintain constant sealing pressure, effectively preventing oil leakage even at high RPM.
Precision Lip Design: Precision-machined sealing lip perfectly matches the valve stem, ensuring a seal while allowing smooth valve movement.

🔧 Important Installation Note: The valve stem seal is a critical sealing component in the valve train. Correct installation is crucial. It is recommended that installation be performed by an experienced professional technician. Key points to note:

Inspect the valve stem and valve guide for wear before installation; replace if necessary.
Apply a small amount of clean lubricating oil to the seal lip to aid installation and prevent initial dry running.
Use the appropriate installation tool to press the seal onto the valve guide, ensuring it is fully seated and square.
Avoid using sharp tools that could damage the seal lip.
After installation, check that the valve moves smoothly within the seal.
It is recommended to replace the valve cover gasket at the same time as the valve stem seals.

📖 Installation Guide (Valve Stem Seal)

Follow these steps to replace the valve stem seal to ensure proper sealing and engine operation. This operation requires special tools and is recommended to be performed by a professional technician.

🔧 Pre-Installation

Confirm that the new valve stem seal is 0JYV-022300-4000, 4 pieces/pack.
Prepare the valve stem seal installation tool, torque wrench, cleaning cloth, and lubricant (engine oil).
Ensure the engine is cooled down, and remove necessary components such as the cylinder head to access the valve train.

🔄 Step 1: Remove the Old Valve Stem Seal

Use a dedicated valve stem seal removal tool to carefully remove the old seal.
Be careful not to scratch the inner wall of the valve guide.
Clean the valve guide mounting area to remove old seal residue and oil.
Inspect the valve stem and valve guide for wear; repair or replace as necessary.

🧽 Step 2: Install the New Valve Stem Seal

Take out the new valve stem seals (4 pieces) and check for damage or deformation.
Apply a small amount of clean engine oil to the valve stem for lubrication.
Slide the new seal over the valve stem and use the installation tool to press the seal onto the valve guide.
Ensure the seal is fully seated, with the sealing lip oriented correctly (usually toward the combustion chamber).
⚠️ Critical Step: Ensure the seal lip is not damaged by burrs or sharp edges on the valve stem during installation.

✅ Step 3: Post-Installation Check

Verify that all seals are installed correctly, without tilt or deformation.
Reinstall the cylinder head and other components according to factory specifications.
Start the engine and check for unusual noises or smoke.
Perform a road test to confirm normal oil consumption.
Record the mileage and date of replacement for future maintenance reference.

💡 Installation Tips

Apply oil to the valve stem before installation to lubricate the seal and prevent dry-running damage to the lip.
Use the proper installation tool; avoid pushing by hand to prevent seal deformation.
Pay attention to seal orientation — the sealing lip should face toward the combustion chamber.
It is recommended to check valve stem clearance and valve guide wear when replacing valve stem seals.
If you lack repair experience, it is strongly advised to have a professional technician perform the work.

⚠️ Ordering Note: This product is a valve stem seal, part number 0JYV-022300-4000, 4 pieces per pack. Minor variations may exist between different years or batches. If your vehicle is not listed above, or if you have any fitment questions, please contact customer service with your VIN or engine model for verification.

🔧 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.