CG Crankcase RH
- Brand: Mortch Motor
- Product Code: MICG125-1049
- Product Viewed: 163
- Availability: Pre-Order Pre-Order
- Weight: 1.00kg
US$18.98
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CG Right Crankcase
🔧 Right Crankcase · Engine Right Case · Crankcase Half · CG Series Specific
Excellent Inexpensive Replacement · For CG125, CG150, CG200 Engines · Engine Core Component
This is the CG Right Crankcase — an excellent inexpensive replacement crankcase half. This component is a core part of the engine, combining with the left crankcase to form the engine main body, housing the crankshaft, transmission, clutch, and other critical components.
The crankcase is the foundation of the engine, providing precise mounting locations and support for all moving parts. The right crankcase typically houses the clutch assembly, oil pump, starter motor, and features precision oil passages and bearing seats. Manufactured from high-quality cast aluminum with precision machining, this crankcase ensures accurate dimensions for all mounting holes and bearing bores. This is the perfect replacement when the original crankcase suffers from cracks, deformation, worn bearing seats, or damaged threads.
✨ Core Functions: Support crankshaft and transmission · Form sealed oil cavity · Mount clutch and oil pump · Support engine components · Restore engine structure
Product Name
Right Crankcase / Engine Right Case
Compatible Engines
CG125 / CG150 / CG200
Material
Cast Aluminum Alloy
Surface Finish
Painted / Natural Finish
Mounting Location
Right Side of Engine
Cooling Type
Air Cooled
Compatible Vehicles
CG Series Motorcycles
Mounting Type
Direct OEM Replacement
Associated Components
Left Crankcase, Crankshaft Bearings, Oil Seals
🏗️ Structural Support
Combines with the left crankcase to form the engine main body, providing precise mounting for the crankshaft, transmission, and clutch.
🛢️ Forms Oil Cavity
Together with the left case, forms a sealed crankcase oil cavity that holds oil and ensures proper lubrication system operation.
⚙️ Mounting Base
Provides mounting locations for the clutch assembly, oil pump, starter motor, and other components.
🔧 Bearing Support
Features precision bearing seats to support the crankshaft, transmission main shaft, and countershaft rotation.
⚠️ Symptoms of Right Crankcase Failure: Cracks causing oil leaks, worn bearing seats causing noise, damaged threads preventing bolt tightening, deformation causing installation issues, broken case exposing internal components. If these issues occur, inspect and replace the right crankcase promptly.
This right crankcase is compatible with the following engines and vehicles:
- Engine Types: CG125, CG150, CG200 4-stroke engines
- Vehicle Types: Honda CG series, Chinese-made CG series motorcycles, dirt bikes, street bikes
- Mounting Location: Right side of engine (clutch side)
- Applications: Engine overhaul, crankcase crack repair, bearing seat repair, collision damage repair
📌 Compatibility Note: This right crankcase is specifically designed for CG series engines as a standard replacement for the original right crankcase. Installation requires the left crankcase, crankshaft bearings, oil seals, and other components — professional assembly is strongly recommended.
- High-Quality Aluminum Casting: Made from premium aluminum alloy casting for good strength, lightweight construction, and excellent heat dissipation.
- Precision Machining: Critical areas such as bearing seats, mounting surfaces, and oil passages are precision-machined for accurate dimensions.
- OEM Specification Standards: Manufactured to CG series original specifications for perfect fitment.
- Surface Finish: Painted surface for corrosion resistance and attractive appearance.
- Optimized Design: Internal oil passages are well-designed for proper oil circulation.
- Excellent Value: High cost-performance ratio makes it an ideal choice for engine overhaul and repair.
🔧 Installation Guide
1. Ensure all components are disassembled and clean the crankcase mating surfaces before starting.
2. Inspect the new crankcase for casting defects or machining burrs; clean if necessary.
3. When installing crankshaft bearings, use a press tool to avoid impact damage.
4. When installing oil seals, pay attention to orientation and apply a small amount of grease.
5. Apply sealant or use a gasket on the mating surface to ensure reliable sealing.
6. Join the left and right crankcases, aligning the locating pins, and hand-start the bolts.
7. Tighten bolts evenly in a diagonal pattern in multiple stages to the specified torque.
8. After assembly, rotate the crankshaft to confirm smooth operation without binding.
9. Crankcase assembly involves critical engine components — professional installation is strongly recommended.
Spec Confirmation: Before purchasing, verify that your engine is CG125, CG150, or CG200 to ensure compatibility.
Installation Caution: Crankcase assembly requires specialized tools and skills. Use a press tool for bearing installation to avoid impact damage. It is recommended to replace crankshaft bearings, oil seals, and gaskets simultaneously. Professional installation is strongly recommended. Product images are for reference only; please refer to the actual product.
- 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 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.
- 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.


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