Dorman 977-321 Fuel Injection Throttle Body

Overview of Dorman Fuel Injection Throttle Body 977-321

The Dorman 977-321 fuel injection throttle body is designed specifically for Nissan Frontier models, providing reliable air and fuel delivery performance. This throttle body features a durable aluminum housing and includes a throttle position sensor for precise engine control.

• Compatible with Nissan Frontier vehicles
• Durable aluminum housing for long-lasting use
• Includes throttle position sensor for accurate throttle response
• Gray throttle body finish for corrosion resistance
• Electrical connection with 6-pin male terminals
• Non-adjustable throttle body design

Detailed Product Description

The Dorman 977-321 throttle body is engineered to meet the specific requirements of Nissan Frontier models, ensuring proper air and fuel mixture delivery to the engine. Constructed with a robust aluminum housing, this throttle body offers strength and heat resistance necessary for consistent operation. The included throttle position sensor allows the vehicle's engine control unit to monitor throttle position accurately, optimizing fuel injection and engine performance. Featuring a gray finish, the throttle body resists corrosion and wear over time. The electrical connection uses a 6-pin male terminal with a pin-type connector, ensuring secure and reliable connectivity. This throttle body is non-adjustable and designed for direct replacement without the need for additional calibration.

Common Applications and Problem Resolution

• Restores proper throttle response in Nissan Frontier vehicles
• Resolves engine hesitation or stalling related to faulty throttle bodies
• Addresses check engine light issues caused by throttle position sensor failure
• Improves idle stability and overall engine performance
• Replaces worn or damaged throttle body components

Installation Notes and Tips

Installation of the Dorman 977-321 throttle body requires basic mechanical skills and appropriate tools. Ensure the vehicle is turned off and cooled before beginning. Disconnect the battery to prevent electrical shorts. Carefully remove the existing throttle body and clean the mounting surface before installing the new unit. Since installation hardware is not included, retain original bolts and fasteners. Reconnect the electrical connector securely to the 6-pin male terminal. After installation, it is recommended to perform a throttle body relearn procedure or reset the engine control unit to ensure proper operation.

Quality Assurance and Warranty

Dorman manufactures the 977-321 throttle body to meet or exceed OEM specifications for Nissan Frontier vehicles. The aluminum housing and integrated throttle position sensor undergo rigorous quality checks to ensure durability and performance. While specific warranty details are not provided here, Dorman typically offers limited warranties on their replacement parts. Consult product documentation or the manufacturer for exact warranty terms.