• Top Street Performance 5/16" Spring Lock EFI Fuel Rail Adapter Fitting - Fuel Adapter
  • Top Street Performance 5/16" Spring Lock EFI Fuel Rail Adapter Fitting - front view
  • Top Street Performance 5/16" Spring Lock EFI Fuel Rail Adapter Fitting - side view
  • Top Street Performance 5/16" Spring Lock EFI Fuel Rail Adapter Fitting - close-up
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Top Street Performance

5/16" Spring Lock EFI Fuel Rail Adapter Fitting

5/16" Spring Lock EFI Fuel Rail Adapter Fitting

SKU: 81098

$14.94
$14.94 $16.98
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In stock

Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Straight adapter connects 5/16" female spring lock to -8 AN male thread
  • Simplifies feed/return line plumbing at the fuel rail connection
  • Fits perfectly with TSP Velocity fuel rails using matching connection
  • Universal design also works with other compatible spring-lock rails

Description

This EFI fuel rail adapter connects a 5/16" female spring lock connection to -8 AN male thread for clean AN fuel line routing at the rail. The straight adapter layout helps simplify feed or return line plumbing on compatible EFI fuel rails, including TSP Velocity fuel rail assemblies with the matching connection style.

Use it when adapting a quick-connect or spring-lock rail outlet to AN hose plumbing. While this product is universal, its -8 AN design fits perfectly with TSP Velocity fuel rails. Confirm the rail connection, AN thread size, hose end, sealing surface, and line routing clearance before installation.


Applications
Universal fit for 5/16" female spring lock fuel rail connections. Its -8 AN design fits perfectly with TSP Velocity fuel rails.

Installation
Confirm fuel rail connection style, AN size, hose end, sealing surface, and routing clearance before installation.

Specs

Fitting StyleFuel Rail
Attachment 15/16 in Female Spring Lock
Attachment 2-8 AN Male Thread
Fitting AngleStraight
Gauge PortNo

Engine Fitment

COMPATIBLE WITH
UNIVERSAL

NOTES
While this product is universal, its -8AN design fits perfectly with TSP Velocity fuel rails.
Verify fuel rail connection style, AN size, hose end, sealing surface, and routing clearance before installation.

Q&A

What does this adapter connect?
A 5/16" female spring lock fuel rail connection to -8 AN male thread, for AN hose plumbing.

Does this fit TSP Velocity fuel rails?
Yes — its -8 AN design fits perfectly with TSP Velocity fuel rails using the matching spring lock connection.

Is this a straight or angled fitting?
Straight.

Does this have a gauge port?
No.

Will this work with fuel rails other than TSP Velocity?
Yes — it's a universal fitting for 5/16" female spring lock connections, not limited to TSP Velocity rails specifically.

Emissions Notice

This product does not affect vehicle emissions and is not subject to emissions compliance regulations.