C100 Oil Pump

Brand: Mortch Motor
Product Code: MIC100-6034

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Availability: Pre-Order

Weight: 0.08kg

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C100 Oil Pump

🛢️ Oil Pump · Lubrication Pump · Engine Lubrication System

For Moped, Cub & ATV · Fits 139FMB, 147FMD, 147FMF, 150FMG engines

📋 Product Overview

This is the C100 Oil Pump, a core component of the engine's lubrication system. It is suitable for Mopeds, Cub series, and ATVs, and fits engines including 139FMB, 147FMD, 147FMF, 150FMG, and similar models.

The oil pump is driven by the engine crankshaft and is responsible for pressurizing and delivering oil from the oil pan to all engine friction surfaces, including the crankshaft, connecting rod, camshaft, valve rocker arms, and other critical components. Manufactured with high-quality aluminum alloy pump body and precision-machined gear or rotor internals, it offers stable oil pressure and excellent self-priming capability. This oil pump is the ideal replacement when the original shows signs of low oil pressure, abnormal noise, or wear, ensuring the engine receives adequate lubrication protection.

✨ Key Functions: Builds oil pressure · Forced circulation lubrication · Cools engine components · Cleans friction surfaces · Extends engine life

📐 Specifications

Product Name

Oil Pump Assembly

Engine Application

139FMB / 147FMD / 147FMF / 150FMG

Body Material

High-Strength Aluminum Alloy

Pump Type

Rotor Pump / Gear Pump

Drive Type

Crankshaft Driven / Chain Driven

🔧 Oil Pump Size Options

⚠️ Important: Different engine displacements may use different oil pump specifications. Please select the correct specification based on your engine model!

70cc / 90cc Specification

Displacement: 70cc / 90cc

Pump Type: Rotor / Gear Pump

Position: Right Side Crankcase

Engine Models: 139FMB, 147FMD

110cc / 125cc Specification

Displacement: 110cc / 125cc

Pump Type: Rotor / Gear Pump

Position: Right Side Crankcase

Engine Models: 147FMF, 150FMG

📌 Size Selection Guide: Different displacement engines may use different oil pump capacities and port dimensions. To ensure accurate fitment, it is recommended to verify your original oil pump model or contact customer service for specific specifications.

🔧 Compatible Engine Models

This oil pump fits the following engine models:

139FMB

147FMD

147FMF

150FMG

Engine Reference Information:

139FMB: 1P39FMB / 1P39QMB · 50cc-125cc universal engine
147FMD: 1P47FMD · 70cc-110cc engine
147FMF: 1P47FMF · 90cc-110cc engine
150FMG: 1P50FMG · 125cc-150cc engine

🛵 Compatible Vehicles

Mopeds - Various 50cc-150cc moped models (underbones, scooters, etc.)
Cub Series - Honda Cub and clone models
ATVs - Small-engine quad bikes / kids ATVs
Dirt Bikes - Small off-road motorcycles
Other vehicles using 139FMB, 147FMD, 147FMF, 150FMG engines

📌 Compatibility Note: This oil pump is suitable for the engine models listed above. Since different displacement engines may use different oil pump specifications, please verify your original specifications or contact customer service before purchase.

⚙️ Importance of Oil Pump

🛢️ Builds Oil Pressure

Provides stable oil pressure to ensure oil reaches all friction surfaces.

🔁 Forced Lubrication

Creates forced oil circulation, forming an oil film between moving parts to reduce friction and wear.

🌡️ Cooling

Circulating oil carries away internal engine heat, helping cool high-temperature components.

🧹 Cleaning

Flows through the engine to carry away wear particles and contaminants, keeping the interior clean.

⚠️ Oil Pump Failure Symptoms: Oil pressure warning light illuminates, engine knocking noise (from valve train or crankshaft area), engine overheating, abnormal oil consumption, or in severe cases, engine seizure. If these occur, stop operation immediately and inspect/replace the oil pump.

⚠️ Common Failure Symptoms

Oil Pressure Light Illuminated: Dashboard oil pressure warning light stays on while engine is running, indicating low oil pressure.
Engine Knocking Noise: Metallic knocking or grinding noise from valve rocker arms, camshaft, or crankshaft area.
Engine Overheating: Inadequate oil circulation leads to poor cooling and abnormally high engine temperature.
Low Oil Pressure: Oil pressure measured with a gauge is below specification.
Oil Pump Noise: Unusual humming or gear mesh noise from the oil pump area.
Worn or Damaged Components: Inspection reveals visible wear, scoring, or damage to pump gears, rotors, or pump body.

If you experience these symptoms, inspect the oil pump and oil strainer, and replace if necessary.

✨ Product Features

OEM Specifications: Manufactured to original dimensions and specifications for perfect fitment.
High-Strength Aluminum Alloy Body: Die-cast aluminum body for compact structure and excellent heat dissipation.
Precision-Machined Rotor/Gears: Pump internals are precision-machined for precise clearances and stable oil pressure.
Excellent Self-Priming: Superior self-priming capability ensures rapid oil delivery to friction surfaces during cold starts.
Direct Replacement: Directly replaces worn or damaged original oil pump without modification.

🔧 Installation Tip

1. Replacing the oil pump requires removing the engine right side cover and clutch assembly; professional installation is recommended.
2. Thoroughly clean the oil pump mounting surface and oil passages to remove oil and debris.
3. Inspect the oil pump drive gear or chain for wear; replace if necessary.
4. Pay attention to drive shaft alignment during installation to ensure proper engagement.
5. Tighten oil pump mounting bolts to the specified torque.
6. Prime the oil pump with a small amount of engine oil before installation to prevent dry running during initial startup.
7. After installation, add proper engine oil and manually rotate the crankshaft several times to confirm oil pump operation.
8. Start the engine and verify the oil pressure warning light turns off; check for oil leaks.

⚠️ Important Notice: This is a C100 oil pump assembly suitable for Mopeds, Cubs, ATVs, and vehicles using 139FMB, 147FMD, 147FMF, 150FMG engines.
Size Confirmation: Different displacement engines may use different oil pump specifications. Before purchase, please confirm your engine model or verify the original oil pump type. Contact customer service if you have any questions.
Installation Notes: Prime the oil pump with oil before installation to prevent dry damage. It is recommended to inspect the oil strainer for clogging simultaneously. 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.