Radium Engineering Split-Flow Flex Fuel Sensor Adapter | FFP
YOUR BUILD STARTS HERE Expert Installs Thousand Oaks, CA
805-267-9762 — Tap to Call
Authorized Dealer • Expert Installation • Thousand Oaks, CA
Discount Code: FFPERFORMANCE
805-267-9762
Radium Engineering
Radium Engineering ✓ Authorized
22 products at FFP
View All

Radium Engineering Split-Flow Flex Fuel Sensor Adapter

$94.95

or as low as $7.91/mo with Affirm

Verified In Stock Inventory Confirmed • Money-Back Guarantee
Authorized Dealer
Guaranteed Fit
🔒
Secure Checkout
💬
Expert Support
Ships boxed: 4.7 × 4.3 × 4.1 in · 1 lb
SKU20-0589
BRANDRadium Engineering


ADAPTER FITTING SOLD SEPARATELY.
This product features 10AN ORB female ports. Adapter fittings are required for the hose connection.

Flex fuel sensors measure ethanol content. They can be used in the FPR return line. But for improved accuracy and faster response times, the sensor should be plumbed upstream of the fuel injectors in the feed line. In this case, expect to see up to a ~10psi pressure drop if multiple pumps are used with a high-powered engine.

As shown above, the Radium Engineering adapter splits the fuel flow into an auxiliary passage parallel to the sensor. Because the flex fuel sensor is directly inline with the fuel flow path, it will read the incoming ethanol content at high and low engine demands. Traditionally this additional flow path could be accomplished with hose and y-adapter fittings. However, the Radium Split-Flow Flex Fuel Sensor Adapter is less complicated, considerably compact, and provides a mounting solution for the popular GM 13577429 flex fuel sensor (shown below).

Two M6x1.0mm socket head bolts are provided for mounting.

Additionally, the position of the sensor can be rotated at any given time even when mounted and plumbed.

This is great for proper spacing with surrounding components.

Unique 10AN ORB end port adapter fittings can be purchased HERE.


SENSOR COMPATIBILITY
The Radium Engineering Split-Flow Flex Fuel Adapter was designed to be compatible with multiple sensors, as described below.

1. GM P/N: 13577429
NOTE: This sensor is the same found in AEM 30-2200 / 30-2201, ECU Master WHP, MaxxECU 1282, Fuel Tech 5005100353 / 5011100354, and Cobb Tuning kits.

Compatible with included mount (shown below).

2. GM P/N: 13577379
This sensor already has 3 useable mounting holes. The provided mount cannot be used.

3. GM P/N: 13577394
NOTE: This sensor is the same one found in the Haltech HT-011000 kit

This sensor already has 3 useable mounting holes. The provided mount cannot be used. For assembly, this sensor (shown above) requires a minor modification described in the instructions.


FEATURES
-4pc billet 6061 aluminum construction
-Black anodized and laser-engraved-10AN (5/8″) equivalent flow rate
-Can be used on fuel feed or return line
-8 double FKM O-rings (primary and backup)
-Stainless steel metric hardware


DIMENSIONS

 


Reviews

There are no reviews yet

Be the first to review “Radium Engineering Split-Flow Flex Fuel Sensor Adapter”

Your email address will not be published. Required fields are marked *

Drag photos here or browse

🤖

Not sure if this fits your build? Ask Senna.

Our AI assistant knows every product on the site and can check compatibility, suggest alternatives, and answer technical questions.

💡 Quick Answers

FREQUENTLY ASKED QUESTIONS

📦 What happens after I order? +

You'll get an instant confirmation email with your part details and invoice. We source from a network of authorized suppliers across the country, so lead times vary by brand and part type — we'll send a tracking number the moment your parts move.

Made-to-order builds — carbon fiber bodywork, fabricated systems, custom finish work — run longer than off-the-shelf items because they're built per order. You'll get progress updates throughout the build.

Need a specific timeline on a part before you buy? Call 805-267-9762 or hit the chat — we'll check vendor stock direct and give you a straight answer.

🚚 Do you send tracking with my order? +

Absolutely! Once your order ships, you'll get an email with a tracking link so you can follow its journey from our shop to your doorstep.

If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.

🛡 What if my parts get lost or damaged? +

Things happen on the road — even to boxes. If your order arrives damaged, snap a few clear photos of the box and product and send them our way right away.

If your shipment is lost, just email or call us — we'll help track it down and guide you through the next steps to make it right.

What can I do to help FFP? +

Simple — spread the horsepower! Follow us on Instagram, YouTube, and Facebook, and most importantly, drop us a review on Google or Yelp to let others know about your experience.

Your feedback helps us grow, create more content, and keep bringing performance-driven parts to the community. 🏁

🏎
Ready to Order?

1ST CLASS SERVICE

805-267-9762 EMAIL SUPPORT

Car parts can be a maze — good thing we brought the map. Our team's here to keep things smooth, simple, and maybe even a little fun.

📞 Click To Call Now

Follow us for builds, tips & giveaways

@FFPerformanceAZ
👤
Customer Support Specialist
Product Guaranteed
🏁
Race Proven Knowledge
🔒
Payments Verified
📞 Call Expert
Popular Searches
Search for parts
Try "C8 exhaust" or "Mustang intake"
Navigate Enter Select Esc Close