333-0677-02 Cummins Block / Water Heater Retrofit Kit 240/480VAC 6420W E204747

Need to replace a 333-0677-02 Cummins Onan block heater? Our 6420W heater retrofit kits provide the most amount of heat to your engine, without redesigning the OEM configuration of the block heater plumbing. These kits include new inlet and outlet block heater hoses with new hose clamps. These retrofit kits can replace a 333-0677-02 Cummins Onan Water Heater; they're in stock, ready to ship today. Depending on specific generator set application and model number, may require new mounting holes to be drilled in bracket; contact us for additional details and clarification for your application.

Block heater thermostats (P/N 309-0649) and control relay(s) are also available at our store. Please see our online store for additional offerings, or to combine shipments with these other recommended block heater replacement parts.

307-2859 Block Heater Relay Contactor Assembly -> https://www.ebay.com/itm/295516567077

*6420W heaters are recommended for applications which may experience ambient temperatures below 40 degrees F. 4990W heaters can be used in climates where ambient temperatures remain above 40 degrees F.*

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