CG Left Crankcase Rear Cover (New Style)

Brand: Mortch Motor
Product Code: MICG125-1076

Product Viewed: 155

Availability: Pre-Order

Weight: 0.28kg

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US$3.99 7 SOLD

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CG Left Crankcase Rear Cover · New Style

🔧 Left Crankcase Cover · Magneto Cover · New Style Design · CG125/CG150 Engine

For CG125 · CG150 4-Stroke Engines · Left Crankcase Rear Cover

📋 Product Overview

This is the CG Left Crankcase Rear Cover (New Style), a high-quality, cost-effective replacement for the left crankcase rear cover on CG125 and CG150 4-stroke engines. Specifically designed for CG series engines, this cover is suitable for motorcycles, ATVs, and various other vehicles, making it the ideal choice for engine repairs or cover replacement.

The left crankcase rear cover (also known as magneto cover) is installed on the left side of the engine, sealing the rear of the crankcase and protecting internal components such as the magneto stator and starter gears. Manufactured from high-quality aluminum alloy with precision machining, this new style design offers excellent sealing and heat dissipation properties, ensuring reliable operation of left-side engine components.

✨ Core Functions: Seal left crankcase rear · Protect magneto and starter mechanism · Provide sealing and heat dissipation · Prevent foreign material entry

🆕 New Style Design Description

📌 New Style Features

The new style left crankcase rear cover features optimized structural design with improved rib layout for better rigidity, enhanced sealing performance, and superior heat dissipation. Some new style covers incorporate an integrated seal groove design for more reliable sealing.

📌 Difference from Old Style

New style covers may differ from old style covers in appearance, mounting bolt locations, and seal type. Before installation, verify your original cover style to ensure compatibility. New style and old style covers are not interchangeable — verify carefully.

💡 Compatibility Note: This product is new style design for newer CG125 and CG150 engines. Before installation, verify your original cover style — new style and old style are not interchangeable.

📐 Specifications

Displacement

125cc / 150cc

Style

New Style

Material

High-Quality Aluminum Alloy

Manufacturing Process

Precision Casting · CNC Machined

Surface Finish

Shot Blasted / Painted

Mounting Location

Left Side Rear of Engine

Fastening Method

Bolt Mount (New Style Pattern)

Seal Type

O-Ring / Gasket

⚠️ Cover Failure Symptoms

💨 Common Symptoms

• Visible oil leakage around the cover
• Heavy oil stains on left side of engine
• Cracked or damaged cover
• Deformed cover causing poor sealing
• Loose or broken mounting bolts
• Damaged starter motor mounting area

🔍 Possible Causes

• Impact or drop causing cover fracture
• Aged or failed seal ring
• Excessive bolt torque causing cover deformation
• Cover aging from prolonged use
• Magneto or starter mechanism failure damaging the cover

⚠️ Important Note: Cover oil leakage not only wastes oil but may also lead to insufficient oil levels, causing poor engine lubrication. If you notice cover leakage or damage, inspect and replace promptly.

🏍️ Compatible Vehicles

This left crankcase rear cover (new style) fits vehicles equipped with newer CG125 and CG150 4-stroke engines, including but not limited to:

New Style CG125 Motorcycles

New Style CG150 Motorcycles

New Style Honda CG Series

ATVs / Quad Bikes

Trikes / Three-Wheelers

💡 Compatibility Note: This cover is new style design for newer CG125 and CG150 engines. Before installation, verify your original cover style — new style and old style are not interchangeable. Verify carefully.

✨ Product Features

High-Quality Aluminum Alloy: Cast from premium aluminum alloy for lightweight construction, high strength, and excellent heat dissipation.
New Style Design: Optimized structural design with improved rib layout for better rigidity and impact resistance.
Precision Machining: Sealing surfaces and mounting holes precision-machined for accurate fit and reliable sealing.
OEM Specification: Manufactured to exact CG series engine factory specifications for perfect replacement of damaged original covers.
Cost-Effective: Excellent value, ideal replacement for original covers.
Reliable Sealing: Optimized seal surface design with new seal ring effectively prevents oil leakage.

🔧 Installation Guide

1. Disconnect the negative battery terminal for safety.
2. Remove the left crankcase rear cover mounting bolts (typically 6-8 bolts).
3. Carefully remove the old cover, being careful not to damage the sealing surface.
4. Clean the left crankcase mating surface, removing old sealant or old seal residue.
5. Inspect the new cover seal groove and install a new O-ring or gasket.
6. Apply a small amount of oil to the seal surface to aid installation and enhance sealing.
7. Align the new cover with the mounting position and hand-thread bolts to avoid cross-threading.
8. Tighten bolts in a diagonal pattern in stages to specified torque (typically 8-12 N·m).
9. Start the engine and check for oil leaks.
Important Note: Pay attention to bolt hole pattern differences between new and old style covers. Do not use excessive torque, as this may deform the cover or damage bolts. Use a new seal ring and have installation performed by a professional technician.

⚠️ Important Notice: This is the CG Left Crankcase Rear Cover (New Style), designed for newer CG125 and CG150 4-stroke engines.
Spec Confirmation: Before purchasing, verify your engine model and cover style (new style) to ensure compatibility. New style and old style covers are not interchangeable — verify your original cover style and bolt hole pattern carefully.
Installation Note: Pay attention to bolt hole pattern differences between new and old style covers. Use a new seal ring and tighten bolts to specified torque. Professional installation is strongly recommended.
Recommended Parts: When replacing the cover, it is recommended to also replace the seal ring to ensure optimal sealing performance. Product images are for reference only; 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.