VDO Reed Switch 800MM Tank Depth Fuel Sender

The VDO 800 mm Reed Switch Fuel Sender is designed for a fuel tank that requires a substantially deeper vertical sender. Its stainless-steel tubular construction occupies a narrow footprint inside the tank, avoiding the side-to-side sweep of a conventional pivoting sender arm. The specified sender depth is 800 mm, with manufacturer part number 226-680.

A depth mismatch can make a fuel-level gauge inaccurate or prevent the sender from fitting safely, so measure the tank before selecting this model. The catalog specifies a 240–33 ohm resistance range; confirm that the boat's gauge uses the same range. Also inspect internal tank clearance and the top mounting location rather than assuming every five-hole installation will accept an 800 mm tube.

Fuel slosh is moderated by the sender's enclosed vertical sensing arrangement, helping reduce abrupt gauge fluctuations. The assembly uses an SAE five-hole mounting pattern and is supplied with a neoprene mounting gasket and installation hardware, alongside an ethanol-resistant Viton gasket. Seal the mounting surface carefully, verify the electrical connections, and check the gauge across the usable fuel range after fitting.