HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsDelphi FP10519 Fuel Injection Pressure Regulator
Part #: FP10519

Delphi FP10519 Fuel Injection Pressure Regulator

16 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$147.75Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Toyota, 4Runner and Pickup
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Delphi Fuel Injection Pressure Regulator FP10519

The Delphi Fuel Injection Pressure Regulator FP10519 is designed for precise fuel pressure control in Toyota 4Runner and Pickup models. Manufactured from durable metal, this non-adjustable regulator ensures consistent fuel delivery for optimal engine performance.

  • Constructed from high-quality metal for durability
  • Non-adjustable design for reliable factory-spec pressure regulation
  • Single hose inlet and threaded outlet for secure connections
  • Compatible with Toyota 4Runner and Pickup fuel injection systems
  • Does not include a gauge port, simplifying installation

Detailed Product Description

This fuel injection pressure regulator by Delphi, part number FP10519, is engineered to maintain steady fuel pressure within the fuel injection system of select Toyota vehicles. The metal construction provides resistance to wear and corrosion, ensuring long-term functionality. Featuring one hose-type inlet and one threaded outlet, it integrates seamlessly with the existing fuel lines on Toyota 4Runner and Pickup models. The regulator is non-adjustable, maintaining factory-set pressure levels to support consistent engine operation without the need for manual tuning. The absence of a gauge port simplifies the design and installation process.

Applications and Problem Solving

This fuel injection pressure regulator is used to control fuel pressure in the fuel injection system, which is critical for engine efficiency and emissions control. It addresses several common issues, including:

  • Fuel pressure fluctuations causing poor engine performance
  • Hard starting or stalling due to inconsistent fuel delivery
  • Fuel leaks from worn or damaged regulators
  • Reduced fuel economy linked to improper fuel pressure
  • Engine hesitation or misfires related to fuel system irregularities

Installation Notes and Tips

When installing the Delphi FP10519 fuel injection pressure regulator, ensure the following:

  • Verify compatibility with Toyota 4Runner or Pickup models before installation
  • Use appropriate tools to connect the hose inlet and threaded outlet securely
  • Inspect fuel lines for wear or damage and replace if necessary
  • Follow vehicle manufacturer torque specifications to avoid leaks
  • Check for fuel leaks after installation and before engine start-up

Quality Assurance and Warranty

Delphi manufactures the FP10519 fuel injection pressure regulator to meet strict quality standards, ensuring reliable performance in Toyota 4Runner and Pickup vehicles. The metal construction supports durability under typical operating conditions. While specific warranty details may vary, Delphi products generally come with a limited warranty against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.

BrandDelphi
Part NumberFP10519
AdjustableNo
Gauge PortNo
Inlet Quantity1
Inlet TypeHose
MaterialMetal
Outlet Quantity1
Outlet TypeThreaded

This part fits 16 vehicles. Search below:

YearMakeModelPositionNotes
1995Toyota4RunnerN/A
1995ToyotaPickupN/A
1994Toyota4RunnerN/A
1994ToyotaPickupN/A
1993Toyota4RunnerN/A
1993ToyotaPickupN/A
1992Toyota4RunnerN/A
1992ToyotaPickupN/A
1991Toyota4RunnerN/A
1991ToyotaPickupN/A
1990Toyota4RunnerN/A
1990ToyotaPickupN/A
1989Toyota4RunnerN/A
1989ToyotaPickupN/A
1988Toyota4RunnerN/AFuel Pressure Regulator
1988ToyotaPickupN/AFuel Pressure Regulator

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

158-0252217-1242187223280-350305G1351800-238PR126PR460

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.