







04.5-07 GM 6.6L Duramax DHD Billet Thermostat Housing To Heater Core Fitting
$68.95
- Part Number: 500-304
- Est. Ship Time: Usually Ships in 1-2 Business Days

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DHD 500-304 Duramax Thermostat Housing to Heater Core Fitting 2004.5-07
DHD's Billet Coolant supply fitting replaces the OE steel EGR/heater core supply tube. This assembly is designed to fit into the front coolant bridge adjacent to the thermostat housing and is almost a must when doing a high flow intake install.
Confirmed fitment on LLY and LBZ trucks. May fit other years.
Note: This fitting has been revised to work in conjunction with HSP's forward facing thermostat housing.
Part Number: 500-304

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