S2-AS3 Upgrade

The Espar/Eberspächer S3-D2L brings the latest generation heating technology to your existing install — with a drop-in swap that takes minutes, not hours. Why Upgrade? Increased altitude compensation to 13,000 ft Improved combustion chamber no glow pin screen Effortless Installation Remove your old heater and Fuel Metering Pump (same as S2 FMP), drop in the new S3-D2L and its FMP. Your existing wire harness and controller work as-is — no rewiring required. What's Included S3-D2L Heater Fuel metering pump Fuel line adapter 3.5 - 4.5mm 9mm hose clamp 11mm hose clamp