S2-AS3 Upgrade
S2-AS3 Upgrade is backordered and will ship as soon as it is back in stock.
Delivery and Shipping
Delivery and Shipping
Products ship in 1-2 business days.
S2-AS3 Upgrade is backordered and will ship as soon as it is back in stock.
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
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