2006-2011 Honda Civic JDM R18A 1.8L i-VTEC Automatic Transmission Assembly OEM

Restore your vehicle's driving performance with this premium JDM 2006-2011 Honda Civic R18A 1.8L i-VTEC Automatic Transmission. Imported directly from Japan, this genuine OEM transmission is the perfect high-quality replacement for any 8th-generation Honda Civic experiencing slipping gears, delayed engagement, or internal mechanical failure. Known for their reliability and precise shifting, these JDM-sourced units are meticulously inspected to ensure fluid integrity and smooth solenoid operation. By choosing this authentic factory-spec transmission, you ensure a direct, plug-and-play fit that restores your Civic's factory fuel efficiency and acceleration without the need for complex internal rebuilds.

Vehicle Specifications

• Year Range: 2006, 2007, 2008, 2009, 2010, 2011

• Make & Model: Honda Civic (8th Generation)

• Engine Compatibility: R18A 1.8L i-VTEC Engine

• Transmission Type: 5-Speed Automatic

• Drivetrain: Front-Wheel Drive (FWD)

• Origin: Japan (Genuine OEM Japanese Domestic Market Import)

• Condition: Premium Used Take-Off (Clean fluid, functional solenoid pack, and verified low-mileage operation)

Vehicle Fitments

• Direct US-Spec Replacement: 2006-2011 Honda Civic (DX, LX, EX, and GX trims with 1.8L engine).

• Fitment Note: Designed specifically for the 8th-generation Civic FWD platform. This transmission is a direct structural swap for the USDM version. Ensure your vehicle’s TCU (Transmission Control Unit) matches the transmission revision for seamless integration.

Included Parts

• Transmission Assembly: Complete 5-speed automatic gearbox housing

• Torque Converter: Factory-matched torque converter included

• Solenoids: Integrated factory transmission control solenoid assembly

• Sensors: Input and output speed sensors and range switch

Installation & Conversion Notes

• Fluid Service: For optimal longevity, flush the transmission with genuine Honda ATF-DW1 fluid upon installation. Using the correct fluid is critical to maintaining the shift quality and protecting the internal clutch packs.

• TCU Calibration: In some instances, after installing a replacement transmission, it is beneficial to perform a "Transmission Re-learn" procedure using an OBD-II diagnostic tool to clear old shift-point data and adapt the TCU to the new unit.

• Mounting Points: Verify that your existing transmission mounts are in good condition before installing the new unit, as worn mounts can cause excessive vibration and potential stress on the new transmission casing.

• Safety First: Transmission replacement is a major component swap. Always support the engine block independently before disconnecting the transmission and ensure the vehicle is stable on a professional-grade lift or jack stands.