Street. Track. Everything between.
07 3276 7829
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Hedman Oxygen Sensor Reducers with 3 Inch Outlet 21133 Header Reducer, Bung, 3-Bolt Flange, in. Inlet, in. Outlet, Steel, Painted, Each

SKU: HED21133

Header Reducers

Hedman Oxygen Sensor Reducers with 3 Inch Outlet 21133 Header Reducer, Bung, 3-Bolt Flange, in. Inlet, in. Outlet, Steel, Painted, Each

SKU: HED21133

Header Reducers
A$122.31
IN STOCK! Est Ship 4-7 days. In stock at 2 locations (more than 10 available)

Added to cart

We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Collector Reducer - 3 in Inlet to 3 in OD Outlet - 3-Bolt Flange - Gaskets Included - O2 Bung - Steel - Black Paint - Each


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:36:16

Data: v4.2 - Upd: 2026-11-08 20:35:35

Features

Note for Australian and European Markets

Unless otherwise stated, this product may be engineered for use in Left-Hand Drive vehicles. Steering components, pedals, shifters, linkages, wing mirrors, instrument clusters, panhard rods/traction bars, drag links, brake boosters, brake or clutch lines, accelerator cables, heater cores, some master cylinders and adjacent parts can vary between LHD and RHD configurations. In some models compenents such as windscreen wiper arms, motors and linkages could differ in their size and orientation. Items such as floor mats & dash mats may have differences in their structure around the front row (or padding in different locations). In many cases items are identical depending on the design of the vehicle and part, but may have differing mounts, lengths or bolt patterns. Carefully review the product images and details to ensure suitability for your vehicle, or contact StreetFX support if you are unsure. Returns are not accepted for special order products.

(keyword: header)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Hedman Hedders, HEDMAN
StreetFX SKU hed21133
SFX Item ID 5069918
Accounting SKU hed-21133
Manufacturer SKU 21133
Manufacturer UPC 732611211338
Alternative References 21133, HED-21133

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

Hedman oxygen sensor reducers allow you to retain an oxygen sensor when you add on headers. They come with all the necessary flanges, gaskets, and hardware needed to adapt your exhaust to your headers.

Product Attributes
BrandHedman Hedders
Manufacturer's Part Number21133
Part TypeHeader Reducers
Product LineHedman Oxygen Sensor Reducers
UPC732611211338
Collector Attachment3-bolt flange
Collector Diameter (in.)3.00
Reducer Outlet Diameter3.000 in.
Oxygen Sensor Bung IncludedYes
Bolts/Studs IncludedYes
Gaskets IncludedNo
Reducer MaterialSteel
Reducer FinishPainted
QuantitySold individually.

Compatibility

Loading compatibility information...

Keep shopping

More from Hedman Hedders