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Fuel Gauge / Level Sender

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477919051C/1
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Product Information

OE Match fuel level sender, this replacement monitors fuel in the tank and provides the signal used by the dashboard gauge.

Fits

  • Porsche 944 1982-85
  • Porsche 924 1976-88
  • Porsche 924S 1986-88

Check fitment for your specific vehicle (model, year, engine) before ordering.

What This Product Does

The sender supplies fuel-level information to the instrument display. Its role is measurement rather than pumping fuel or regulating delivery to the engine. An unreliable indication therefore needs separate diagnosis from a starting or running fault.

Functions

  • Monitors the quantity of fuel remaining in the tank.
  • Provides an electrical input for the dashboard fuel indicator.
  • Supports fuel monitoring between refuelling stops.

Technical Details

  • Brand: OE Match.
  • Component: fuel tank level sender.
  • Supplied references: 477919051B and 477919051C.

Symptoms of Fault

  • Fuel indication remains at empty or full.
  • The needle moves abruptly when travelling over uneven surfaces.
  • The displayed level fails to increase after filling the tank.
  • Readings vary intermittently or change with temperature.
  • The low-fuel warning does not correspond with the fuel remaining.
  • Corroded terminals or damaged sender wiring are visible.

Why Replacement Matters

Renewing a confirmed faulty sender can restore useful fuel-level information when worn contacts, internal deterioration or contamination affect measurement. Check the gauge, wiring, connectors and earth connections first, since these can produce similar symptoms. Inspect the sender seal during the repair; fuel odour around its mounting may indicate a sealing problem rather than an electrical fault.

FAQs

Does an inaccurate gauge always mean the sender has failed?
No. The instrument, its electrical connections and the vehicle wiring can also cause incorrect readings.

Will changing the sender resolve poor engine running?
Not usually. This component measures fuel level; delivery faults require their own checks.

Should the sealing ring also be renewed?
Renew an aged or damaged sender seal to address potential vapour leakage. Do not assume a seal is included with the sender.




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

477919051C
477919051B
477919051C

The product you are viewing cross references to these numbers
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477919051C
Product Information
Product Information
Replacement fuel tank gauge

Fits:
Porsche 944 1982-85
Porsche 924 1976-88
Porsche 924S 1986-88

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

477919051C
477919051B
477919051C

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
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About Fuel Gauge / Level Sender

Fuel Level Sender Units – Accurate Fuel Readings for Reliable Porsche Performance

A fuel level sender unit is a critical component in your Porsche’s fuel system, designed to monitor the amount of fuel in the tank and transmit that data to your dashboard gauge. It ensures accurate readings, helping drivers manage fuel efficiency and avoid running dry.

At Design911, we offer a wide selection of fuel level sender units developed for Porsche models across generations — from classic air-cooled icons to modern performance cars. Each unit is crafted to deliver accurate resistance readings, durable performance, and seamless electrical compatibility, ensuring your dashboard gauge provides dependable fuel level information.

Our high-quality sender units are built to withstand fuel exposure, temperature changes, and vibration, restoring accuracy and reliability to your vehicle’s instrumentation.

What Do Fuel Level Sender Units Do?

The sender unit is responsible for measuring fuel level inside the tank and communicating that information to the gauge via a variable resistor or electronic sensor.

Core Functions:

  • Measures fuel level using a float and resistance-based signal.
  • Transmits real-time data to the dashboard fuel gauge.
  • Ensures accurate monitoring for efficient driving and trip planning.
  • Maintains correct communication within the vehicle’s fuel system.

Without a properly functioning sender unit, your Porsche’s fuel gauge can become unreliable — leading to false readings and unnecessary refuelling anxiety.

Why Do Fuel Level Sender Units Fail?

Fuel level sensors operate constantly within harsh conditions — submerged in fuel and exposed to varying temperatures and vibration. Over time, they can deteriorate, resulting in erratic or inaccurate readings.

Common Causes of Failure Include:

  • Wear and corrosion on electrical contacts or float arms.
  • Contaminated or degraded fuel, causing internal residue buildup.
  • Float leakage or disintegration, affecting buoyancy and measurement.
  • Electrical short circuits or open circuits due to connector fatigue.
  • Age-related material breakdown in older Porsche models.

Symptoms of a failing sender include stuck or fluctuating gauges, inaccurate readings, or a fuel light that remains on or off constantly.

Why Replace with Precision-Engineered Sender Units?

Installing a precision-fit replacement fuel sender unit restores the accuracy of your Porsche’s fuel gauge, ensuring dependable readings and maintaining the integrity of your fuel management system.

Key Benefits:

  • Restores accurate dashboard readings for fuel monitoring.
  • Eliminates erratic gauge behaviour or warning light faults.
  • Enhances reliability during long drives and performance use.
  • Crafted from corrosion-resistant, fuel-safe materials.
  • Direct-fit compatibility for quick and precise installation.
  • Designed to match Porsche performance standards.

Whether part of a restoration or routine service, a new sender unit ensures confidence every time you hit the road.

Highlights:

  • High-precision Porsche fuel level sender units for classic and modern models.
  • Durable, corrosion-resistant materials for long-term accuracy.
  • Restores communication between tank and gauge.
  • Direct-fit design for easy installation and reliable operation.
  • Ensures accurate fuel readings and system integrity.
  • Perfect for maintenance, restoration, or upgrades.

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