VDO Reed Switch Fuel Sender - 350 MM

The VDO Reed Switch Fuel Sender – 350 MM (MPN 226-635) replaces unreliable float-arm fuel senders that plague countless boats and marine engines. If you've spent years on the water watching your fuel gauge bounce erratically or fail mid-trip, you know how frustrating—and dangerous—an inaccurate fuel level reading can be. This revolutionary design eliminates the mechanical wear and resistance-card drift that plague traditional aftermarket senders, giving you stable, dependable fuel measurement when it matters most.

The VDO reed switch technology replaces moving float arms with a sealed, magnetically actuated switch mechanism that requires no resistance cards or sliding contacts. This design virtually eliminates pointer drift and erratic gauge movement caused by fuel slosh, vibration, and corrosion—common culprits in marine environments where tanks endure constant motion and exposure to moisture. The 350 MM length suits mid-range tank depths, and the compact 3 x 3 x 19-inch profile fits cleanly in most standard tank installations. At just 0.8 lbs, the sender adds negligible weight while delivering years of maintenance-free, accurate fuel monitoring.

Serious anglers, cruisers, and commercial boaters who rely on precise fuel management will appreciate the reliability this sender brings to the helm. Whether you're planning an all-day offshore run or a multi-day expedition, knowing your true fuel reserve removes guesswork and improves safety margins. The VDO reed switch sender integrates with your existing fuel gauge system—consult your boat's wiring diagram or contact a marine electrician to confirm compatibility with your gauge head. This is a direct replacement for worn or failing original equipment senders, delivering the stable, stick-free gauge response that transforms how you monitor fuel consumption underway.