1. Introduction
The CRAFTSMAN CMMT98350 Fluid Extractor is designed for efficient and clean transfer of various automotive fluids. This tool is particularly useful when draining fluids from a reservoir is challenging or not feasible through conventional methods. It can be used for both extracting old fluids and filling reservoirs with new fluids, including brake fluid, power steering fluid, gear oil, and anti-freeze.
Its robust polypropylene construction and double plunger seals ensure durability and minimize the risk of leaks during operation. The transparent barrel allows for clear visibility of fluid levels and condition.
2. Safety Information
Always observe the following safety precautions when using the fluid extractor:
- Wear appropriate personal protective equipment (PPE), including safety glasses and gloves, when handling automotive fluids.
- Ensure the work area is well-ventilated to avoid inhaling hazardous fumes.
- Do not use the extractor with flammable liquids or corrosive chemicals not specified for use with this tool.
- Dispose of used fluids responsibly according to local environmental regulations.
- Keep the tool out of reach of children and untrained personnel.
- Inspect the tool and hoses for any damage before each use. Do not use if damaged.
- Avoid overfilling the extractor to prevent spills.
3. Package Contents
Verify that all items are present in the package:
- CRAFTSMAN CMMT98350 Fluid Extractor Unit
- Hose Extension(s)

Image 1: CRAFTSMAN CMMT98350 Fluid Extractor with included hose extensions. The main unit is a clear cylinder with a black plunger handle, and two white hose extensions are shown alongside it.
4. Setup
Before using the fluid extractor, ensure it is properly assembled and ready for operation.
- Inspect the Unit: Check the fluid extractor body, plunger, and hose extensions for any signs of damage, cracks, or wear. Ensure the double plunger seals are intact.
- Attach Hose Extension: Connect the desired hose extension to the nozzle of the fluid extractor. Ensure a secure fit to prevent leaks during use. The hose extensions are designed to connect to over 15 inches in length for reaching various reservoirs.

Image 2: The CRAFTSMAN CMMT98350 Fluid Extractor showing the main body and how the hose extensions connect to the nozzle for use.
5. Operating Instructions
The CRAFTSMAN Fluid Extractor can be used for both fluid extraction and filling.
5.1 Fluid Extraction
- Prepare the Vehicle: Ensure the vehicle is on a level surface and the engine is off and cooled, if applicable. Access the fluid reservoir you intend to work with.
- Insert Hose: Carefully insert the hose extension into the fluid reservoir, ensuring it reaches the fluid level you wish to extract.
- Extract Fluid: Pull the plunger handle of the extractor upwards to create a vacuum, drawing fluid into the transparent barrel. The see-through barrel allows you to monitor the fluid volume and condition.
- Empty Extractor: Once the desired amount of fluid is extracted, or the extractor reaches its 7 oz. capacity, remove the hose from the reservoir. Empty the extracted fluid into an appropriate waste container.
- Repeat if Necessary: For larger volumes, repeat the extraction process until the task is complete.
5.2 Fluid Filling
- Clean Extractor: Ensure the extractor is clean and free of any previous fluid residue, especially if filling with a different type of fluid.
- Fill Extractor: Submerge the hose end into the fresh fluid container and pull the plunger handle upwards to draw the new fluid into the extractor barrel. Alternatively, the extractor can be filled directly by pouring fluid into the barrel if the plunger is removed.
- Dispense Fluid: Insert the hose extension into the vehicle's reservoir. Gently push the plunger handle downwards to dispense the fluid into the reservoir. Monitor the fluid level in the vehicle's reservoir to avoid overfilling.
- Repeat if Necessary: Continue filling until the desired level is reached.
6. Maintenance
Proper maintenance ensures the longevity and effective operation of your fluid extractor.
- Cleaning: After each use, especially when handling different types of fluids, clean the extractor thoroughly. Flush the barrel and hoses with an appropriate cleaning agent or warm soapy water, then rinse with clean water and allow to air dry completely.
- Inspection: Regularly inspect the plunger seals and hose connections for wear or damage. Replace components if they show signs of deterioration to maintain a leak-free operation.
- Storage: Store the fluid extractor in a clean, dry place, away from direct sunlight and extreme temperatures. Keep it disassembled or with the plunger fully extended to prevent seals from sticking.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Fluid not extracting or filling efficiently. |
|
|
| Fluid leaking from the extractor. |
|
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| Plunger is stiff or difficult to move. |
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8. Specifications
- Model: CRAFTSMAN CMMT98350 Fluid Extractor
- Part Number: CMMT98350
- Fluid Capacity: 7 oz. (207 mL)
- Construction Material: Oil and chemical-resistant polypropylene
- Seals: Double plunger seals
- Hose Extension Length: Connects to over 15 inches
- Product Dimensions: Approximately 30.73 x 6.5 x 5.99 cm
- Item Weight: Approximately 0.28 g
- Applications: Brake fluid, anti-freeze, gear oil, power steering fluid, and other automotive fluids.
9. Warranty & Support
9.1 Warranty Information
CRAFTSMAN products are manufactured to high-quality standards. For specific warranty details regarding your CMMT98350 Fluid Extractor, please refer to the warranty card included with your purchase or visit the official CRAFTSMAN website. Keep your proof of purchase for any warranty claims.
Note: The product description mentions "FULL LIFETIME" which implies a lifetime warranty. Please consult official CRAFTSMAN warranty documentation for complete details.
9.2 Customer Support
If you have any questions, require technical assistance, or need to report an issue with your CRAFTSMAN CMMT98350 Fluid Extractor, please contact CRAFTSMAN customer support. You can typically find contact information on the official CRAFTSMAN website or through the retailer where the product was purchased.
Official CRAFTSMAN Website: www.craftsman.com




