Part #: 159-1129

Beck Arnley 159-1129 Fuel Injector

⚙️ 74 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Lexus, ES350, GS350, IS300, IS350, LC500h, LS500h, RC300, RC350, RX350, RX350L, and TX550h+
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Overview of Beck Arnley Fuel Injector 159-1129

The Beck Arnley 159-1129 fuel injector is designed for precise fuel delivery in select Lexus models. Featuring a blade terminal type and multi-point fuel injection (MPI) technology, this injector supports efficient engine performance and reliable operation.

  • Compatible with Lexus ES350, GS350, IS300, IS350, LC500h, LS500h, RC300, RC350, RX350, RX350L, and TX550h+
  • Blade terminal type for secure electrical connection
  • Multi-point fuel injection (MPI) system compatibility
  • Part number 159-1129 ensures exact fit and function
  • Designed for air and fuel delivery systems in fuel injection applications

Detailed Product Description

This Beck Arnley fuel injector 159-1129 is engineered to meet the specifications of various Lexus models, including the ES350, GS350, IS300, IS350, LC500h, LS500h, RC300, RC350, RX350, RX350L, and TX550h+. The injector features a blade terminal type, which provides a reliable and secure electrical connection to the vehicle’s wiring harness. Utilizing multi-point fuel injection (MPI) technology, it delivers fuel directly to each cylinder, promoting efficient combustion and consistent engine performance.

Manufactured to fit precisely within the fuel injection system, this component supports optimal air and fuel delivery, contributing to smoother engine operation and reduced emissions. The part number 159-1129 corresponds to this specific injector model, ensuring compatibility and ease of identification for maintenance or replacement.

Common Applications and Issues Addressed

  • Restores proper fuel delivery in Lexus ES350 and GS350 models
  • Resolves engine misfires and rough idling in IS300 and IS350 vehicles
  • Improves fuel efficiency and throttle response in RX350 and RX350L
  • Addresses poor acceleration and hesitation in RC300 and RC350
  • Supports hybrid fuel injection needs in LC500h, LS500h, and TX550h+

Installation Notes and Tips

When installing the Beck Arnley 159-1129 fuel injector, ensure the blade terminal connections are clean and secure to maintain proper 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 for accurate fitment and system calibration.

Quality Assurance and Warranty

Beck Arnley fuel injectors are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number 159-1129 should be confirmed at the point of purchase, Beck Arnley products typically come with a limited warranty covering defects in materials and workmanship to ensure reliability and customer confidence.

BrandBeck Arnley
Part Number159-1129
Terminal TypeBlade
Fuel Injection TypeMpi

This part fits 74 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2025LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2025LexusIS3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2025LexusIS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2025LexusLC500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2025LexusLS500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2025LexusRC3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2025LexusRC3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2025LexusTX550h+3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2024LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2024LexusIS3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2024LexusIS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2024LexusLC500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2024LexusLS500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2024LexusRC3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2024LexusRC3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2024LexusTX550h+3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2023LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2023LexusIS3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2023LexusIS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2023LexusLC500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2023LexusLS500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2023LexusRC3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2023LexusRC3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2022LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2022LexusIS3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2022LexusIS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2022LexusLC500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2022LexusLS500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2022LexusRC3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2022LexusRC3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2022LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8; Except Japan Built Vehicle; Japan Built Part
2022LexusRX350L3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2021LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2021LexusIS3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2021LexusIS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2021LexusLC500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2021LexusLS500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2021LexusRC3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2021LexusRC3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2021LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8; Except Japan Built Vehicle; Japan Built Part
2021LexusRX350L3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2020LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2020LexusGS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2020LexusIS3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2020LexusIS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2020LexusLC500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2020LexusLS500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2020LexusRC3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2020LexusRC3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2020LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8; Except Japan Built Vehicle; Japan Built Part
2020LexusRX350L3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2019LexusES3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2019LexusGS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2019LexusIS3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2019LexusIS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2019LexusLC500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2019LexusLS500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2019LexusRC3003.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2019LexusRC3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2019LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8; Except Japan Built Vehicle; Japan Built Part
2019LexusRX350L3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2018LexusGS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2018LexusIS3003.5LV6N/ANEW, DIRECT INJECTION; From 10/17; Mark 8
2018LexusIS3503.5LV6N/ANEW, DIRECT INJECTION; From 10/17; Mark 8
2018LexusLC500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2018LexusLS500h3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2018LexusRC3003.5LV6N/ANEW, DIRECT INJECTION; From 10/17; Mark 8
2018LexusRC3503.5LV6N/ANEW, DIRECT INJECTION; From 11/17; Mark 8
2018LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8; Except Japan Built Vehicle; Japan Built Part
2018LexusRX350L3.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2017LexusGS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2017LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8; Except Japan Built Vehicle; Japan Built Part
2016LexusGS3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8
2016LexusRX3503.5LV6N/ANEW, DIRECT INJECTION; Mark 8; Except Japan Built Vehicle; Japan Built Part

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