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Airtronic D2/D4/B4 wire harness. Fits Gen 1 heaters

Rubber mount for smaller fuel metering pumps used on the D2/D4 type heaters.

This fillister head bolt is used to secure the burner tube to the heat exchanger. For D2 applications three bolts are required; for B4/D4 applications 4 are required.

The M 4x10 fillister head bolt is used to secure the control unit properly; if the control unit is not secured, the control unit cannot read blower motor speed properly.