Header Reducers & Extensions

Header Collector Extensions, 3-Bolt, 3.00 in. Diameter, 12.0 in. Length, Gaskets, Fasteners, Pair

Part Number: SUM-670162

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 5/19/2025

Header Reducers, 3-Bolt Flange, 3.00 in. Inlet, 2.50 in. Outlet, Steel, Natural, Pair

Part Number: SUM-G4754ID

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 5/19/2025

Header Reducers, Ball and Socket Flange, 3 in. Inlet, 2.25 in. Outlet, Steel, Painted, Pair

Part Number: HED-21114

4.73 out of 5 stars ( 11 )

Estimated Ship Date: Monday 5/19/2025

Header Collector Adapter, Reducer, 3.0 in. 3-Bolt Flange, 3.0 in.Out., 6.0 in. OAL., 304L SS, Each

Part Number: STW-HCA33

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/19/2025

Header Reducers, 3-Bolt Flange, 3 in. Inlet, 3 in. Outlet, Stainless Steel, Natural, Pair

Part Number: SUM-G4752SS

3.2 out of 5 stars ( 10 )

Estimated Ship Date: Monday 5/19/2025

Header Reducers, 3-Bolt Flange, 3.50 in. Inlet, 2.50 in. Outlet, Steel, Painted, Pair

Part Number: HOK-11035HKR

4.71 out of 5 stars ( 7 )

Estimated Ship Date: Monday 5/19/2025

Header Collector Flange, Stainless Steel, 3-Bolt, 2.50 in. Diameter Hole, .375 in. Thick, Each

Part Number: PYE-HVF10S

4.76 out of 5 stars ( 17 )

Estimated Ship Date: Monday 5/19/2025

Header Collector Extensions, 3-Bolt, 3.50 in. Diameter, 12.0 in. Length, Gaskets, Fasteners, Pair

Part Number: SUM-670164

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 5/19/2025

Header Reducers, 3-Bolt Flange, 3.00 in. Inlet, 2.25 in. Outlet, Steel, Natural, Pair

Part Number: SUM-G4751ID

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Monday 5/19/2025

Header Collector Extensions, 3.0 in. Universal Flange, 3 in. Pipe, Pair

Part Number: HED-18702

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 5/19/2025

Header Reducers, Ball and Socket Flange, 3 in. Inlet, 3 in. Outlet, Steel, Aluminized, Pair

Part Number: HED-21122

4.79 out of 5 stars ( 14 )

Estimated Ship Date: Monday 5/19/2025

Header Reducers, 3-Bolt Flange, 3 in. Inlet, 2.25 in. Outlet, Steel, Natural, Pair

Part Number: SUM-G4751

4.29 out of 5 stars ( 21 )

Estimated Ship Date: Monday 5/19/2025

Header Reducers, 3-Bolt Flange, 3.50 in. Inlet, 3.00 in. Outlet, Steel, Natural, Pair

Part Number: SUM-G4753ID

4.14 out of 5 stars ( 7 )

Estimated Ship Date: Monday 5/19/2025

Header Reducer, Stainless Steel, Bolt-On, 3 in. 3-bolt Flange, 2.50 in. Out, 6.0 in. OAL, Each

Part Number: STW-HCA32-5

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 5/19/2025

Header Reducers, 3-Bolt Flange, 3.5 in. Inlet, 2.5 in. Outlet, Stainless Steel, Polished, Pair

Part Number: PYE-PVR19S

4.67 out of 5 stars ( 9 )

Estimated Ship Date: Monday 5/19/2025

Collector Rings, 2.50 in., Weld-On, 3-Bolt Flange, Steel, Natural, Pair

Part Number: SUM-G4760

3.9 out of 5 stars ( 10 )

Estimated Ship Date: Monday 5/19/2025

Collector Rings, 3.50 in., Weld-On, 3-Bolt Flange, Steel, Natural, Pair

Part Number: SUM-G4762

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Monday 5/19/2025

Header Reducers, Collector Reducers, 3-bolt Flange, 2.500 in. Diameter, Stainless Steel, Natural, Each

Part Number: STW-HCA2-52-5O2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/19/2025

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Header Collector, 3-Bolt, 3.00 in. Inlet/Outlet Diameter, Steel, Zinc Plated, Composite Gaskets, Pair

Part Number: PTE-H7237

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Monday 5/19/2025

Header Reducer, with Oxygen Sensor Bung, 3-Bolt Flange, 3 in. Inlet, 2.5 in. Outlet, Steel, Painted, Each

Part Number: SUM-626102

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 5/19/2025

Collector Bolts, 12-Point Head, Stainless Steel, Natural, 3/8 in.-24, 1.500 UHL, Set of 6

Part Number: ARP-400-1215

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 5/19/2025

Collector Reducers, 3-Bolt, 3.5 in. to 3.5 in., Gaskets, Fasteners, Pair

Part Number: PTE-H7246

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Monday 5/19/2025

Header Reducers, Stainless, Natural, Ball and Socket Flange, 2.5 in. Collector, 2.5 in. Reducer Outlet, Pair

Part Number: HED-22129

Not Yet Reviewed

Estimated Ship Date: Monday 5/19/2025

• Free Shipping

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

Part Number: HED-21134

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Monday 5/19/2025

Header Reducer, 3-Bolt Flange, 3.0 in. Inlet, 2.5 in. Outlet, Oxygen Sensor Fitting, Steel, Each

Part Number: HED-21142

4.41 out of 5 stars ( 17 )

Estimated Ship Date: Monday 5/19/2025