Description
Product Overview
The YFIXTOOL DFFM-04 Mechanical Fuel Flow Meter is engineered for accurate measurement of high‑viscosity liquids such as diesel, gasoline, engine oil and other lubricants. Constructed from high‑quality aluminum, the meter offers a robust, corrosion‑resistant housing that stands up to harsh workshop conditions. A large‑screen LCD presents three‑digit subtotals that can be manually reset and a six‑digit total that records cumulative flow. The device measures 19‑75 LPM and is calibrated in liters, ensuring reliable data for fuel transfer applications.
![[Product front view showing all components]](https://www.pearlshop.store/wp-content/uploads/2026/06/459c1a39faff4cceaaed2a97e338580a.jpg)
Usage
Designed for automotive service centers, fleet maintenance facilities and DIY enthusiasts, this flow meter fits seamlessly into fuel transfer pumps and lubrication systems. Whether you are refilling a diesel generator, topping up a vehicle’s fuel tank, or monitoring oil circulation in industrial equipment, the DFFM-04 delivers clear, instant readings. Its adjustable flow ports can be set horizontally or vertically, providing flexibility for a variety of installation spaces and pipe configurations.
Why Choose Us
YFIXTOOL combines precision engineering with durable materials to create tools that professionals trust. The DFFM-04’s aluminum backplate guarantees longevity, while the mechanical design eliminates the need for batteries or complex electronics, reducing maintenance costs. Each unit undergoes strict quality testing and comes with responsive customer support to address any installation or performance questions.
Key Features
- Accurate measurement of high‑viscosity liquids from 19‑75 LPM
- Large LCD display with resettable subtotals for easy monitoring
- Durable aluminum construction resists corrosion and impact
- Adjustable flow ports allow horizontal or vertical installation
- Comprehensive after‑sales support and warranty coverage
FAQ
What liquids can the DFFM-04 measure?
The meter is suitable for diesel, gasoline, engine oil, and other high‑viscosity lubricants commonly used in automotive and industrial settings.
Can the meter be used with gallons?
No, the DFFM-04 measures only in liters. If you require gallon measurement, this model is not compatible.
How do I reset the subtotal reading?
Press the reset button on the front panel; the three‑digit subtotal will return to zero while the totalized volume remains unchanged.
Is the device battery‑free?
Yes, it operates mechanically with a clear LCD, eliminating the need for batteries or external power sources.
What warranty does YFIXTOOL provide?
All units come with a one‑year limited warranty covering manufacturing defects and include access to our dedicated support team.




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