HomeAir and Fuel Delivery > Fuel Pumps and Related ComponentsDelphi FG1665 Fuel Pump Module Assembly
Part #: FG1665

Delphi FG1665 Fuel Pump Module Assembly

6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$814.25Free 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: Lexus, ES350
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Delphi Fuel Pump Module Assembly for Lexus ES350

The Delphi FG1665 fuel pump module assembly is designed specifically for the Lexus ES350, providing reliable fuel delivery and accurate fuel level readings. This in-tank electric fuel pump module ensures consistent fuel pressure and flow for optimal engine performance.

  • Electric fuel pump with 12V operation
  • Includes internal strainer and fuel level sender assembly
  • Maximum pressure rating of 95 psi with system pressure at 58 psi
  • Push-in outlet type with 0.313 inch outside diameter
  • Four male blade terminals for secure electrical connections
  • Regulator included for stable fuel pressure control
  • Average flow rating of 55 liters per hour and average current draw of 10 amps

Technical Details and Features

The Delphi FG1665 fuel pump module assembly is engineered for gas fuel systems and fits the Lexus ES350 model. It features an internal strainer inlet type to prevent debris from entering the fuel system, enhancing durability and performance. The module includes a fuel level sender assembly with resistance values ranging from 410 ohms (empty) to 15 ohms (full), providing accurate fuel gauge readings. The pump uses a push-in outlet with two outlets, each having an outside diameter of 0.313 inches, ensuring proper fuel flow. The four male blade terminals facilitate reliable electrical connections, and the included regulator maintains a maximum pressure of 95 psi, with a system pressure of 58 psi for consistent fuel delivery.

Compatible Applications and Common Issues Solved

  • Replacement for failing or noisy fuel pumps in Lexus ES350
  • Resolves inconsistent fuel pressure causing engine hesitation or stalling
  • Fixes inaccurate fuel gauge readings due to faulty sender assembly
  • Addresses fuel delivery interruptions from clogged or damaged strainers
  • Eliminates electrical connection problems with secure blade terminals

Installation Notes and Tips

Installation of the Delphi FG1665 fuel pump module assembly requires removal of the fuel tank to access the in-tank pump. Ensure the electrical connectors match the four male blade terminals and verify the push-in outlet connections are secure. Since the module does not include a gasket or lock ring, reuse the original components or source replacements as needed. Follow all safety precautions when working with fuel system components to prevent leaks and ensure proper operation.

Quality Assurance and Warranty

This Delphi fuel pump module assembly is a standard replacement part manufactured to meet OEM specifications for the Lexus ES350. It includes a fuel pump module with float arm and an instruction sheet for installation guidance. While specific warranty details are not provided, Delphi parts typically come with manufacturer-backed quality assurance to ensure reliable performance and durability.

BrandDelphi
Part NumberFG1665
Average Current Draw10
Average Flow Rating55
Fuel Level Sender Assembly IncludedYes
Fuel TypeGas
Gasket Or Seal IncludedNo
In Tank or ExternalIn Tank
Inlet TypeStrainer
Internal Or External StrainerInternal
Item GradeStandard Replacement
Lock Ring IncludedNo
Maximum Pressure95.0
Outlet Outside Diameter0.313
Outlet Quantity2
Outlet TypePush In
Package ContentsFuel Pump Module Assembly w/Float Arm, Instruction Sheet
Pump TypeElectric
Regulator IncludedYes
Resistance Ohms Empty410.0
Resistance Ohms Full15.0
Strainer IncludedYes
System Pressure58 psi
Terminal GenderMale
Terminal Quantity4
Terminal TypeBlade
Vapor Pressure SensorNo
Voltage12.0

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2018LexusES350N/AJapan Built; Fuel tank contamination is the leading cause of premature fuel pump failure. To reduce risk of contaminating the replacement pump, it’s recommended to clean the fuel tank before installing a new pump.; Use of fuel tank cleaning kit FC01 is recommended.
2017LexusES350N/AJapan Built; Fuel tank contamination is the leading cause of premature fuel pump failure. To reduce risk of contaminating the replacement pump, it’s recommended to clean the fuel tank before installing a new pump.; Use of fuel tank cleaning kit FC01 is recommended.
2016LexusES350N/AJapan Built; Fuel tank contamination is the leading cause of premature fuel pump failure. To reduce risk of contaminating the replacement pump, it’s recommended to clean the fuel tank before installing a new pump.; Use of fuel tank cleaning kit FC01 is recommended.
2015LexusES350N/AJapan Built; Fuel tank contamination is the leading cause of premature fuel pump failure. To reduce risk of contaminating the replacement pump, it’s recommended to clean the fuel tank before installing a new pump.; Use of fuel tank cleaning kit FC01 is recommended.
2014LexusES350N/AClean fuel tank before installing fuel pump to prevent future seal problems.
2013LexusES350N/AClean fuel tank before installing fuel pump to prevent future seal problems.

* 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:

77020-3336077020-3336177020-3336383320-3314083320-33141DFG1665E16448P76817SP1395SP9061M

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