Sale

Air and Fuel Fuel Injection Systems and Components - Electronic

Radium Engineering

Air Assist Injector Seat

$14.95 $13.54 Save $1.41

SKU: R005 20-0816

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In Stock
Ships by Aug 30
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
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Easy — 1–2 hours

Overview

The Radium Engineering 20-0816 is an air assist injector seat designed for use with Subaru fuel rails. These seats are necessary when converting from OEM to aftermarket fuel injectors. They press-fit into the intake manifold or TGV injector ports and seal with an included FKM O-ring to prevent leaks. The bores are made to accommodate a standard 14mm lower injector O-ring.
Show original supplier description
The Radium Engineering 20-0816 is a precision-machined aluminum injector seat designed to facilitate the transition from OEM to aftermarket fuel injectors in specific Subaru models. This component is crucial for ensuring a proper seal and preventing vacuum or boost leaks. It features an integrated FKM O-ring and is designed to accept a common 14mm lower injector O-ring size. The included FKM O-ring creates a reliable seal within the counterbore, maintaining fuel system integrity. Each injector seat is sold individually, and the quantity should be adjusted based on the number of cylinders in the engine. This specific model, the 20-0816, is identified as an Air Assist Injector Seat and is primarily used with the Radium 20-0764-02 fuel rail for the Phase 1 EZ30 engine. It is compatible with the 2000-2004 Legacy H6 and 2000-2004 Outback H6 models. Proper installation involves cleaning the injector seat bores, lubricating the O-rings, and firmly pressing the seats into place, using a rubber mallet if necessary.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandRadium Engineering
Part NumberR005 20-0816
CategoryAir and Fuel

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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