★★★★★ 5
Useful
Very secure attachment
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Reviewed in the United States on April 8, 2026
Radium Engineering Mazda 13B Primary Top Feed Conversion Fuel Rail
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Radium Engineering Mazda 13B Primary Top Feed Conversion Fuel RailCNC machined fuel rail with direct fitment on the 13B housing. Converts to common top feed fuel injectors. Fuel rail is equipped with three 8AN ORB ports. Check injector compatibility at Radiumauto. com. CNC Machined from aluminum and compatible with gas and E85. This Part Fits: 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
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Your Radium Engineering Mazda 13B Primary Top Feed Conversion Fuel Rail orders ship within 1-2 business days.
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.8 ★★★★★
Based on 2207 reviews
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Product Reviews
★★★★★ 4
Good
Good
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Hubby was happy
My husband was happy with these. He didn’t complain so gold star.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
If you need them,good place to order them
Great but was 2 days late weather. Was bad,in lot of places,
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Reviewed in the United States on March 14, 2026
★★★★★ 5
Great quality
Product exactly as described and worked perfectly for my 2008 Honda accord
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 9, 2025
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