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  • Bearing 6303 for Left Crankcase
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Bearing 6303 for Left Crankcase - Model MICF30400-01701
CFMoto, bearing 6303, 30400-01701, crankcase bearing, CF500, CF600, CF625, UForce 500, UForce U6, ATV bearing, GB276 6303, engine parts, left crankcase  OEM quality bearing 6303 for CFMoto left crankcase. Part number 30400-01701. Compatible with CF500, CF600, CF625, UForce 500, UForce U6 ATV UTV models. GB276 6303 specification for reliable engine performance. 

Bearing 6303 for Left Crankcase

  • Brand: Mortch Motor
  • Product Code: MICF30400-01701
  • Product Viewed: 17
  • Availability: In Stock
  • Weight: 0.12kg

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  • US$2.88


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CF Moto Bearing 6303 for Left Crankcase

OEM Part Number: 30400-01701 | Bearing Model: 6303

Dimensions: 17mm x 47mm x 14mm (ID x OD x Width)

Fits CF Moto 500cc / 600cc / 800cc Multiple Models

📋 Product Overview

This bearing 6303 is a high-quality OEM replacement part for CF Moto engines. It is installed in the left crankcase, supporting the rotation of the crankshaft or other shafts, reducing friction and wear. Directly replaces CF Moto OEM part number 30400-01701. This is a standard deep groove ball bearing model 6303.

This bearing features precision-ground raceways and high-quality steel balls for smooth, low-friction operation with excellent load capacity. Fits various CF Moto models including ATV, UTV, and SSV, covering 500cc (CF188 series), 600cc (196S series), and 800cc (2V91W series) displacements.

Specifications:

  • Bearing Model: 6303
  • Inner Diameter: 17mm
  • Outer Diameter: 47mm
  • Width: 14mm
  • Type: Deep Groove Ball Bearing

✨ High Quality: Made from high-quality bearing steel with precision-ground raceways, offering smooth operation, low friction, high load capacity, and long service life.

📐 Part Number
CF Moto Part Number 30400-01701
Bearing Model 6303
🔧 Compatible Models
🏍️ 500cc X5 Series (CF188 Engine)
  • ATV CF500 X5 CF188
  • ATV CF500-2 X5 CF188
  • ATV CF500-2A X5 CF188
  • ATV CF500-5 X5 CF188
  • ATV CF500-5A X5 CF188
  • ATV CF500-5B X5 CF188-B
  • ATV CF500-5C X5 CF188-B
  • ATV CF500-A X5 CF188
  • ATV CF500-B X5 CF188
  • ATV CF500-C X5 CF188
  • ATV CF500-D X5 CF188
  • ATV CF500-E X5 CF188
  • UTV CF500-3 UForce 500 U5 CF188-A
  • ATV GOES500 CF188
  • ATV GOES500-A CF188
🏍️ 600/625cc X6/U6/Z6 Series (196S Engine)
  • ATV CF600-B X6 196S-B(X6)
  • ATV CF600-C X6 196S-B(X6)
  • ATV CF625-2 X6 196S-B(X6)
  • ATV CF625-2A X6 196S-B(X6)
  • ATV CF625-B X6 196S-B(X6)
  • ATV CF625-C X6 196S-B(X6)
  • UTV CF600-5 UForce U6 196S-B(U6)
  • SSV CF600-3 Z6 196S-C
  • SSV CF600-6 Z6 196S-C
  • SSV CF625-3 Z6 196S-C
  • SSV CF625-6 Z6 196S-C
🏍️ 800cc Series (2V91W Engine)
  • ATV CF800-2 X8 2V91W(X8)
  • ATV CF800ATR CForce 800 2V91W(X8)
  • ATV CF800ATR-2 CForce 800 2V91W FOR CF800ATR-2
  • SSV CF800 ZForce 800EX 2V91W(Z8)
  • SSV CF800(Z8) ZForce 800EX 2V91W(Z8)
  • SSV CF800(CA) ZForce 800EX 2V91W(Z8-US)
  • SSV CF800(US) ZForce 800EX 2V91W(Z8-US)
  • SSV CF800US-A ZForce 800 Trail 2V91W(Z8)
  • SSV CF800US-A(CA) ZForce 800 Trail 2V91W(Z8)
  • SSV CF800US-A(US) ZForce 800 Trail 2V91W(Z8-US)
  • SSV CF800UTR ZForce Z8-EX 2V91W FOR CF800UTR
  • UTV CF800-3 UForce 800 2V91W(U8)
  • UTV CF800-3(CA) UForce 800 2V91W(U8-CA)
  • UTV CF800-3(US) UForce 800 2V91W(U8-US)
  • UTV CF800UTR-2 UForce 800 2V91W FOR CF800UTR-2
  • UTV CF800UTR-2(GD) UForce 800 2V91W FOR CF800UTR-2
  • UTV CF800UTR-2(HLG) UForce 800 2V91W FOR CF800UTR-2
  • UTV CF800UTR-2(KSR) UForce 800 2V91W FOR CF800UTR-2
  • UTV CF800UTR-2(SS) UForce 800 2V91W FOR CF800UTR-2
  • UTV CF800UU-A UForce 800 2V91W(U8)
  • UTV CF800UU-A(AU) UForce 800 2V91W(U8)
  • UTV CF800UU-A(HLG) UForce 800 2V91W(U8)
  • UTV CF800UU-A(KSR) UForce 800 2V91W(U8)
  • ATV CF800AU-2B CForce 800 2V91W-S

📌 Compatibility Note: This bearing 6303 fits all CF Moto models listed above, including 500cc X5 series, 600/625cc X6/U6/Z6 series, and 800cc series. The list includes all known variant models.

⚙️ Features
  • Direct OEM Replacement: Perfectly matches CF Moto OEM part number 30400-01701 for precise fitment.
  • Standard Model 6303: Universal deep groove ball bearing widely used in engine and transmission applications.
  • High-Quality Bearing Steel: Made from premium bearing steel with excellent wear resistance and long service life.
  • Precision Ground Raceways: Smooth raceways ensure low friction and quiet operation.
  • High Load Capacity: Designed to handle both radial and moderate axial loads in both directions.
✅ Importance of Bearing Replacement: Bearings are critical components that support rotating shafts and reduce friction. If a bearing wears or fails, it can cause shaft misalignment, increased noise, vibration, and eventual seizure, leading to severe engine damage. Common symptoms include: grinding noise, rough operation, shaft play, and overheating. During engine overhaul or when experiencing bearing-related symptoms, replace bearings with high-quality components.
⚠️ Installation Tips: Use proper bearing installation tools to press the bearing into place, avoiding impacts that could damage the bearing. Ensure the bearing bore and shaft are clean and free of burrs. Pack with appropriate grease if required.
🔧 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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