Dorman 977-911 Fuel Injection Throttle Body

Electronic Throttle Body for Mazda 3, 5, and 6

Dorman 977-911 is a replacement electronic fuel injection throttle body for select Mazda applications. It is built with an aluminum housing, a natural finish, and an integrated throttle position sensor to match the original equipment design on the listed vehicles.

For drivers searching for a Mazda 3 throttle body replacement, Mazda 5 electronic throttle body, or Mazda 6 throttle body assembly, this unit addresses common throttle-body-related drivability concerns tied to dirt, carbon buildup, or oil contamination.

Key Features

• Electronic throttle body design for gas fuel systems
• 58 mm inlet and outlet diameter
• Flanged inlet with non-flanged outlet
• Aluminum throttle body construction with aluminum/PBT housing
• Integrated throttle position sensor included
• 6-terminal male/blade electrical connection
• Natural finish and natural housing color
• Direct replacement for select Mazda 3, Mazda 5, and Mazda 6 applications

Detailed Description

Dorman 977-911 is engineered as an OE-style replacement for the electronic throttle body used on select 2003-2007 Mazda vehicles. The unit is built to match original performance specifications and uses high-quality materials to help reduce the risk of repeat failure. It is a practical choice when the original throttle body is affected by contamination or internal wear.

This part cross-references Standard Ignition S20189 and Spectra Premium TB1216 for the same application. It is a direct-fit option for Mazda 3, Mazda 5, and Mazda 6 models listed below, making it a relevant search result for Mazda throttle body replacement part number 977-911.

What It Helps Address

• Erratic idle speed
• Malfunction indicator lamp illumination
• Throttle body-related diagnostic trouble codes
• Carbon and dirt buildup inside the electronic throttle body
• Oil ingress affecting throttle response

Installation Notes and Tips

Verify the inlet diameter, connector style, and sensor configuration before installation. This throttle body does not include mounting hardware or a gasket/seal, so those items must be sourced separately if required by the repair. Confirm the vehicle’s throttle body mounting and electrical connection match the original unit before replacement.

Compatible With 2004-2005 Mazda 3, 2006-2007 Mazda 5, and 2003-2005 Mazda 6. Use part number 977-911 to confirm application details when ordering a Mazda throttle body replacement.

Quality Assurance

Dorman builds this replacement throttle body to match the performance of the original equipment unit on the specified vehicles. The aluminum construction and OE-style design are intended to support consistent operation and help reduce future failure risk under normal service conditions.