Hydronic S3 D6L (24V) - Boxed - Right

Espar Hydronic S3 D6L — 24V Diesel Coolant Heater | Boxed Installation Kit (Right-Hand)

Keep your engine warm and your cabin comfortable in any climate. The Espar Hydronic S3 D6L is a high-performance OEM diesel coolant heater engineered for RV, truck, and industrial applications where reliable cold-start protection and cabin heat are critical.

This boxed kit ships ready to install and includes everything needed to get up and running — with the Easystart Pro Controller for precise, programmable operation right out of the box.

What's Included:

• Espar Hydronic S3 D6L coolant heater (24V, right-hand configuration)
• Easystart Pro Controller
• Installation kit (hardware, wiring, and mounting components)

What's Not Included:

• Fuel pickup tube (order P/N 20.2900.20.2004 or 20.2900.20.2010 separately)
• Coolant hoses (application-specific — consult your installation manual)

Key Specifications:

• Voltage: 24V DC
• Fuel: Diesel
• Output: 6 kW heating capacity
• OEM Espar / Eberspaecher quality

Compatible with: Commercial trucks, RVs, and heavy equipment requiring engine pre-heating and cab warmth.