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The Ventech LHG (Liquid Heat Generator) is a rapid supplemental heat provider and diesel idle reduction system. 


This LHG Kit is designed specifically for Thomas Built Saf-T-Liner C2 Buses equipped with the Detroit diesel DD5 engine.

The LHG provides fast engine and cabin warmup and window defrost while reducing excessive idling – resulting in fuel savings, reduced tailpipe emissions, and reduced wear and tear. The LHG is fully automatic and managed by an Electronic Control Unit (ECU) that engages and disengages the LHG based on coolant temperature, load, and other engine and environmental conditions. If desired, an optional dashboard switch is available.

Thomas Built Saf-T-Liner C2 DD5 LHG Kit

SKU: LHG700-0078AM
Excluding Sales Tax
  • The LHG700-0078 Kit for the Saf-T-Liner C2 includes:


    • LHG700 Subassembly
    • LHG Mounting Bracket
    • ECU (Electronic Control Unit)
    • ECU Harness
    • Misc Fasteners, washers, and hardware.
    • Coolant Flow Restrictor
    • Idler Pulley
    • Serpentine Belt


    NOTE: The following additional hardware items are required and are not included in the kit:


    • Two (2) hose coils.
    • Two (2) lengths of 5/8” heater hose.
    • Four (4) hose clamps.
    • One length of corrugated split-tubing.


    (specifics are provided in the installation manual).


    Make sure that you have the correct LHG Installation Kit for your vehicle. Different vehicles use the same LHG700 and the same ECU/Harness system, however, each vehicle platform requires a unique kit. If you are not sure which kit to purchase, please contact us at, or call 248-863-5226.

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