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Radium Engineering Mazda 20B-REW Primary Top Feed Conversion Fuel Rail

Radium Engineering Mazda 20B-REW Primary Top Feed Conversion Fuel Rail

SKU:RAD20-0464

Regular price $1,554.00
Regular price Sale price $1,554.00
(Duties & import taxes included)
Import Duties & Taxes

The displayed price includes import duties and taxes. In principle, no additional payment is required upon delivery. If the shipping carrier nevertheless charges you import duties or taxes upon delivery, please pay the charges first. Shaft Shop will reimburse you for the amount paid.

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Shipping calculated at checkout.

In stock | Estimated delivery: 5–8 business days

International shipping rates are calculated at checkout.
Authorized U.S. Suppliers Sourced through authorized channels
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Japanese & English Support Contact us about fitment and delivery
FAQs: Duties, Delivery & Fitment → View full details
The Radium Engineering high-flow primary fuel rail is designed for the 20B-REW rotary engine originally found in the 1990-1995 Mazda/Eunos Cosmo. The aluminum fuel rail is black anodized and is compatible with all common fuel types, including E85. The fuel rail is manufactured with a large internal bore to support all necessary engine power requirements. Converts to top-feed fuel injectors (sold separately).

This part fits the following:

Year Make Model Submodel
1993-1995 Mazda RX-7 Base
1993 Mazda RX-7 R1
1994-1995 Mazda RX-7 R2
1993-1995 Mazda RX-7 Touring


Before Ordering

〇 Regarding Import Consumption Tax
At the Shaftoya shopping site, we pay the import consumption tax incurred at the time of import on your behalf, so there will be no additional charges beyond the total amount paid at checkout.

Checking Compatibility
Our entire product database is based on North American vehicles (USDM), so please verify whether parts can be installed on Japanese vehicles (JDM) before ordering. (Please feel free to contact us if you are unsure whether the listed product is compatible with your vehicle. Our support team will look into it for you.)
If you order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, make, and model on our homepage tabs, this does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.

○ Regarding Delivery
Shipping costs are paid at the time of payment. Shipping estimates are calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping cost and the actual shipping cost. In such cases, we will contact you individually via email.

Basically, all products are shipped internationally from our US warehouse. Unlike domestic delivery within Japan, international delivery takes about 7 to 14 days, so please allow plenty of time when ordering. If you are in a hurry, please contact us in advance to check the delivery time. Please note that all products are transported by air; they are never shipped by sea freight.

○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Please note that all products we handle are designed and manufactured outside of Japan. They are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide strength calculation documents or similar paperwork for the Japanese inspection system. Therefore, all parts are sold for the purpose of "use on circuits, private land, or off-road," and installation and use are at your own risk.

○ Regarding Warranty
Please check the contents immediately upon arrival of the product. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packaging box or the product itself. Please understand that we will only provide returns, refunds, or replacement exchanges for items with shipping damage, defective products, or items different from what was ordered if you contact us within 7 days of receipt. Please note that for products sold through us, warranty support will be provided "only through us." We do not provide support through other companies or distributors located within Japan.