Header Reducers

Header Reducer, with Oxygen Sensor Bung, 3-Bolt Flange, 3 in. Inlet, 3 in. Outlet, Steel, Painted, Each

Part Number: HED-21133

4.64 out of 5 stars ( 14 )

Header Reducer, with Oxygen Sensor Bung, 3-Bolt Flange, 3.00 in. Inlet, 3.00 in. Outlet, Stainless Steel, Natural, Each

Part Number: HED-22126

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

Header Reducer, Ball/Socket Flange, 3 in. Inlet, 3 in. Outlet, Oxygen Sensor Fitting, Steel, Each

Part Number: HED-21134

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Today

Header Reducer, with Oxygen Sensor Bung, 3-Bolt Flange, 3 in. Inlet, 3 in. Outlet, Steel, Painted, Each

Part Number: SUM-626101

Not Yet Reviewed

Estimated Ship Date: Today

Collector Adapter 3" inlet 3" outlet with O2 bung

Part Number: STW-HCA33-O2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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HEADER COLLECTOR ADAPTER

Part Number: STW-HCA3-53O2

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

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• Special Order