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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 IC Buses equipped with the Cummins ISB6.7 engine built from 2014 to the present with a viscous fan.

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.

IC Cummins ISB6.7 - Viscous Fan LHG Kit

SKU: LHG700-0077-AM
Excluding Sales Tax
  • The LHG700-0077 Kit for the IC/Cummins ISB6.7 with a Viscous Fan includes:


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


    (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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