Part #: 159-1121

Beck Arnley 159-1121 Fuel Injector

⚙️ 42 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Lexus and Toyota, Avalon, Camry, ES350, Highlander, RX350, Sienna, and Tacoma
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Reliable Fuel Injector for Lexus and Toyota Vehicles

The Beck Arnley 159-1121 fuel injector is designed to deliver precise fuel injection for select Lexus and Toyota models. Engineered with a blade terminal type and multi-point injection (MPI) technology, this fuel injector supports efficient engine performance and fuel delivery.

  • Compatible with Lexus and Toyota models including Avalon, Camry, ES350, Highlander, RX350, Sienna, and Tacoma
  • Fuel Injection Type: Multi-Point Injection (MPI) for accurate fuel atomization
  • Terminal Type: Blade for secure electrical connection
  • Part Number: 159-1121 for easy identification and fitment
  • Designed to meet OEM specifications for reliable operation

Product Details and Specifications

The Beck Arnley 159-1121 fuel injector features a blade terminal type, ensuring a stable and corrosion-resistant electrical connection. Its multi-point injection (MPI) design allows fuel to be delivered directly into the intake ports, promoting better fuel atomization and combustion efficiency. This injector is engineered to maintain consistent fuel flow and spray patterns, which are critical for optimal engine performance and emissions control. Compatible with a range of Lexus and Toyota vehicles such as the Avalon, Camry, ES350, Highlander, RX350, Sienna, and Tacoma, this part supports various engine configurations that utilize MPI fuel injection systems.

Common Applications and Problem Resolution

  • Restores proper fuel delivery in Lexus Avalon and Toyota Camry MPI engines
  • Addresses rough idling and engine misfires caused by faulty injectors
  • Improves fuel efficiency and reduces emissions in Toyota Highlander and RX350
  • Eliminates hesitation and poor acceleration in Toyota Sienna and Tacoma
  • Prevents engine stalling related to inconsistent fuel injection

Installation Notes and Tips

When installing the Beck Arnley 159-1121 fuel injector, ensure the blade terminal connections are clean and free of corrosion for optimal electrical contact. It is recommended to inspect the fuel rail and injector seals for wear or damage during replacement. Proper torque specifications should be followed to avoid leaks or injector damage. Professional installation is advised to maintain system integrity and performance.

Quality Assurance and Warranty

Beck Arnley fuel injectors are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 159-1121 fuel injector undergoes rigorous testing to verify fuel flow and spray pattern consistency. While specific warranty details are not provided here, Beck Arnley products typically include a limited warranty covering defects in materials and workmanship.

BrandBeck Arnley
Part Number159-1121
Terminal TypeBlade
Fuel Injection TypeMpi

This part fits 42 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2025LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2024LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2023LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2023ToyotaCamry3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2023ToyotaTacoma3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2022LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2022LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2; Except Japan Built Vehicle; Except Japan Built Part
2022ToyotaAvalon3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2022ToyotaCamry3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2022ToyotaHighlander3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2022ToyotaTacoma3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2021LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2021LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2; Except Japan Built Vehicle; Except Japan Built Part
2021ToyotaAvalon3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2021ToyotaCamry3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2021ToyotaHighlander3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2021ToyotaTacoma3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2020LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2020LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2; Except Japan Built Vehicle; Except Japan Built Part
2020ToyotaAvalon3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2020ToyotaCamry3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2020ToyotaHighlander3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2020ToyotaSienna3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2020ToyotaTacoma3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2019LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2019LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2; Except Japan Built Vehicle; Except Japan Built Part
2019ToyotaAvalon3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2019ToyotaCamry3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2019ToyotaHighlander3.5LV6GASN/ANEW, DIRECT INJECTION; Mark 2
2019ToyotaSienna3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2019ToyotaTacoma3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2018LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2; Except Japan Built Vehicle; Except Japan Built Part
2018ToyotaCamry3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2018ToyotaHighlander3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2018ToyotaSienna3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2018ToyotaTacoma3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2017LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2; Except Japan Built Vehicle; Except Japan Built Part
2017ToyotaHighlander3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2017ToyotaSienna3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2017ToyotaTacoma3.5LV6N/ANEW, DIRECT INJECTION; Mark 2
2016LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 2; Except Japan Built Vehicle; Except Japan Built Part
2016ToyotaTacoma3.5LV6N/ANEW, DIRECT INJECTION; Mark 2

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