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Fuelab 51505-4-S-T Series Adjustable Fuel Pressure Regulator for TBI Applications - 515

Manufacturer

Picture for manufacturer Fuelab

Part Number

51505-4-S-T
6 reviews
Sale Price

$210.26

Estimated ship date Monday, November 23

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Product Details

The Fuelab 51505-4-S-T is a 515 Series Adjustable Fuel Pressure Regulator specifically designed for throttle body injection (TBI) applications. Engineered with performance and flexibility in mind, this precision regulator accepts both port style and non-port style union fittings without interference, providing versatile installation options for custom fuel system configurations.

Key Features:

  • Dual -6AN inlet ports and single -6AN return port located on the bottom for clean routing
  • Adjustable pressure range optimized for TBI systems (1-125 PSID depending on configuration)
  • Compatible with multiple fuel types including gasoline, diesel, methanol, and ethanol
  • CNC-machined billet aluminum construction with Type II military-spec anodizing (MIL-A-8625)
  • Fine thread pitch adjustment for precise pressure tuning
  • 1/8 NPT gauge port with plug for external fuel pressure gauge monitoring
  • 1/8 NPT pressure reference port with barbed fitting for vacuum/boost reference
  • Versatile mounting bracket included with stainless steel hardware
  • Backed by Fuelab's 2-year limited warranty

This regulator delivers the reliability and precision tuning capability demanded by performance fuel systems, whether for street, strip, or off-road applications. The robust construction and multi-fuel compatibility make it an excellent choice for both stock and modified TBI setups.

Products specifications

Range

10-25 psi

Size

(2) -10AN Inlets, (1) -6AN Return

so far so good

Best price for the item I needed. Very fast shipping and there consumer service was great on the phone.

Fast shipping, good customer service!

Lowest price, fast shipping. Thanks!

Autoplicity agent was very helpful over the phone. He answered all my questions & even did some research to make me feel comfortable I was getting the appropriate parts I needed for my car. I was very pleased & will shop Autoplicity again.

Best price on the net! Haven't got my order yet, it just shipped so we will see from there.

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