Dorman 977-323 Fuel Injection Throttle Body

Dorman 977-323 Electronic Throttle Body

Dorman 977-323 is a 100% new electronic fuel injection throttle body built to match original equipment fit and performance. It uses a corrosion-resistant aluminum housing and includes a new throttle position sensor and circuit board for consistent electronic control on Nissan and INFINITI applications.

Key Features

• 100% new electronic throttle body assembly
• Corrosion-resistant aluminum body with gray finish
• Throttle position sensor included
• 6-terminal male pin electrical connection
• Direct OE-style replacement for fuel injection throttle body service
• Package contents: 1 throttle body unit

Detailed Description

This Dorman throttle body is built for vehicles that use electronic throttle control, including Nissan Frontier, Nissan TITAN, Nissan Armada, Nissan Xterra, Nissan Pathfinder, NV1500, NV2500, NV3500, and INFINITI QX56 applications. Part number 977-323 is engineered as a direct replacement for the original unit, with the sensor and circuit board replaced as part of the assembly for reliable throttle response and signal control. This part cross-references Standard Ignition S20181 for the same application.

Use Dorman 977-323 when servicing the throttle body on 2004-2019 Nissan and INFINITI models that require a 6-terminal electronic unit. The aluminum housing helps resist corrosion in demanding underhood conditions, while the OE-style configuration supports proper electrical connection and fitment.

What It Helps Fix

• Throttle response problems caused by a worn electronic throttle body
• Idle instability related to throttle plate or sensor wear
• Electronic signal faults from a failing circuit board
• Corrosion-related housing damage on the original unit
• Driveability issues tied to inconsistent throttle control

Installation Notes and Tips

Verify connector style, terminal count, and throttle body mounting layout before installation. This unit uses a male electrical connection with a pin-style terminal design and does not include installation hardware. After installation, follow the vehicle manufacturer’s relearn or calibration procedure for electronic throttle systems.

Quality Assurance

Dorman builds this throttle body as a new replacement part rather than a remanufactured unit. The updated sensor and circuit board are included to support dependable operation across the listed Nissan Frontier, TITAN, Armada, Xterra, Pathfinder, and INFINITI QX56 fitments.