Beck Arnley 159-1129 Fuel Injector

OE-Style Fuel Injector for Lexus Direct Injection

Beck Arnley 159-1129 is a fuel injector built for direct replacement use on select Lexus applications. It is specified with a blade terminal and MPI fuel injection type, making it a focused replacement for vehicles that require the correct electrical connection and fuel delivery setup.

Compatible With select 2016-2025 Lexus ES350, IS300, IS350, LC500h, LS500h, RC300, RC350, RX350, RX350L, GS350, and TX550h+ applications with direct injection requirements.

Key Features

• Beck Arnley fuel injector, part number 159-1129
• Blade terminal design for the specified electrical connection
• MPI fuel injection type
• OE-style replacement for foreign nameplate applications
• Built to match form, fit, and function requirements for listed Lexus vehicles

Vehicle Fitment Details

• Fits 2019-2025 Lexus ES350, N/A, NEW, DIRECT INJECTION; Mark 8
• Fits 2019-2025 Lexus IS300, N/A, NEW, DIRECT INJECTION; Mark 8
• Fits 2019-2025 Lexus IS350, N/A, NEW, DIRECT INJECTION; Mark 8
• Fits 2018-2025 Lexus LC500h, N/A, NEW, DIRECT INJECTION; Mark 8
• Fits 2018-2025 Lexus LS500h, N/A, NEW, DIRECT INJECTION; Mark 8
• Fits 2019-2025 Lexus RC300, N/A, NEW, DIRECT INJECTION; Mark 8
• Fits 2019-2025 Lexus RC350, N/A, NEW, DIRECT INJECTION; Mark 8
• Fits 2024-2025 Lexus TX550h+, N/A, NEW, DIRECT INJECTION; Mark 8
• Fits 2016-2022 Lexus RX350, N/A, NEW, DIRECT INJECTION; Mark 8; Except Japan Built Vehicle; Japan Built Part
• Fits 2018-2022 Lexus RX350L, N/A, NEW, DIRECT INJECTION; Mark 8
• Fits 2016-2020 Lexus GS350, N/A, NEW, DIRECT INJECTION; Mark 8
• Fits 2018 Lexus IS300, N/A, NEW, DIRECT INJECTION; From 10/17; Mark 8
• Fits 2018 Lexus IS350, N/A, NEW, DIRECT INJECTION; From 10/17; Mark 8
• Fits 2018 Lexus RC300, N/A, NEW, DIRECT INJECTION; From 10/17; Mark 8
• Fits 2018 Lexus RC350, N/A, NEW, DIRECT INJECTION; From 11/17; Mark 8

Common Replacement Uses

• Restores proper fuel delivery on Lexus direct injection systems
• Addresses injector-related misfire or rough-running concerns
• Helps correct hard-start or extended-crank conditions tied to fuel delivery
• Supports repair of fuel trim and drivability issues caused by a worn injector
• Replaces a failed injector with the correct terminal and injection type

Installation Notes and Tips

Confirm the vehicle’s year, model, and build notes before ordering, especially for 2018 applications and RX350 coverage with Japan-built exclusions. Verify the blade terminal connection and direct injection specification against the original part before installation. For best results, inspect related fuel system components and follow the manufacturer service procedure during replacement.

Quality Assurance

Beck Arnley sources parts for foreign nameplates with attention to OE-level form, fit, and function. Part number 159-1129 is selected to meet Beck Arnley specifications for the listed Lexus applications and to support confident installation on the correct vehicle.