HomeEmission Control > Electrical ConnectorsDorman 645-929 Mass Air Flow Sensor Connector
Part #: 645-929

Dorman 645-929 Mass Air Flow Sensor Connector

N/A
⚙️ 16 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$40.54Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: INFINITI and Nissan, Q45, I30, Maxima, and J30
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Mass Air Flow Sensor Connector for Nissan and Infiniti

The Dorman 645-929 Mass Air Flow Sensor Connector is designed to provide a secure and precise electrical connection for emission control systems in select Nissan and Infiniti vehicles. Engineered with durable materials and specific dimensions, this connector ensures consistent performance in your vehicle's air flow sensor circuit.

  • Color: Black plastic housing for durability and corrosion resistance
  • Connector shape: Rectangle with a length of 1.1 inches for exact fitment
  • Female gender connector with 3 terminals and 3 wires for proper electrical contact
  • Wire gauge: 18 AWG with a wiring harness length of 7.9 inches
  • Blade terminal type designed for secure and reliable connections

Product Details and Specifications

The Dorman 645-929 connector features a female blade terminal configuration with three terminals and wires, each measuring 18 gauge. The connector's rectangular shape and 1.1-inch length allow it to fit precisely within the mass air flow sensor system. Constructed from durable plastic, this connector is designed to withstand typical engine bay conditions, although it is not water resistant. The wiring harness length of 7.9 inches provides sufficient reach for installation in compatible Nissan and Infiniti models.

Compatible Vehicles and Applications

This mass air flow sensor connector is compatible with the following vehicles:

  • INFINITI I30
  • Nissan J30
  • Nissan Maxima
  • INFINITI Q45

It is specifically designed to replace worn or damaged connectors in the emission control electrical system, ensuring proper sensor function and engine performance.

Common Issues Addressed by This Connector

  • Intermittent or faulty mass air flow sensor readings
  • Electrical connection failures due to damaged or corroded terminals
  • Wiring harness damage causing sensor communication errors
  • Engine performance issues related to air flow sensor malfunctions
  • Check engine light triggered by sensor circuit faults

Installation Notes and Tips

When installing the Dorman 645-929 connector, ensure the wiring harness is routed away from heat sources and moving parts. Use the included butt connectors to secure wire splices and maintain electrical integrity. Verify that the female blade terminals are fully seated to prevent loose connections. This connector is designed for direct replacement and does not require modifications to the vehicle's wiring.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 645-929 connector is made from quality plastic materials and designed for durability in automotive environments. While this product does not include water resistance, proper installation will help maintain connector longevity. Please refer to Dorman's warranty policy for specific coverage details.

BrandDorman
Part Number645-929
ColorBlack
Connector Length1.1 in
Connector MaterialPlastic
GenderFemale
Package Contents1 EGR Valve Harness; 3 Butt Connectors
ShapeRectangle
Terminal GenderFemale
Terminal Quantity3
Terminal TypeBlade
Water ResistantNo
Wire Gauge Measurement18
Wire Quantity3
Wiring Harness Length7.9

This part fits 16 vehicles. Search below:

YearMakeModelPositionNotes
2001INFINITIQ45N/A2 Way Connector
2000INFINITIQ45N/A2 Way Connector
1999INFINITII30N/A2 Way Connector
1999INFINITIQ45N/A2 Way Connector
1999NissanMaximaN/A2 Way Connector
1998INFINITII30N/A2 Way Connector
1998INFINITIQ45N/A2 Way Connector
1998NissanMaximaN/A2 Way Connector
1997INFINITII30N/A2 Way Connector
1997INFINITIJ30N/A2 Way Connector
1997INFINITIQ45N/A2 Way Connector
1997NissanMaximaN/A2 Way Connector
1996INFINITII30N/A2 Way Connector
1996INFINITIJ30N/A2 Way Connector
1996NissanMaximaN/A2 Way Connector
1995NissanMaximaN/A2 Way Connector

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

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.