Replace part numbers: 4918, 4918U1, 38810-RNA-A02, 38800-RNA-A011M2, 98555, 97555 4992, 38810RNAA02, 38810RRBA01, 3410, 4901, 80221SNAA01, 80221STKA41, 80221SVAA01, 80221SWAA02 Fitment: 2006-2011 Honda Civic 1.8L DX Coupe 2-Door / DX Sedan 4-Door / EX Coupe 2-Door / EX Sedan 4-Door / GX Sedan 4-Door / LX Coupe 2-Door / LX Sedan 4-Door 2008-2011 Honda Civic 1.8L DX-G Coupe 2-Door / DX-G Sedan 4-Door / EX-L Sedan 4-Door 2009-2011 Honda Civic 1.8L EX-L Coupe 2-Door / LX-S Sedan 4-Door 2006-2007 Honda Civic 1.8L EXS Sedan 4-Door / LXS Sedan 4-Door 2009-2010 Honda Civic 1.8L Sport Sedan 4-Door cooling to the vehicle. How to install： 1. Always wear eye protection. 2. Remove the failed compressor. Transfer any switches, sensors, brackets, or manifolds from the original compressor to the replacement unit. 3. Thoroughly flush each component not being replaced with an approved AC flush solvent. 4. Replace the accumulator or dryer and all expansion devices. including the orifice tube and screen. 5. After installing the replacement compressor on the vehicle ensure proper mounting and belt alignment. 6. It is recommended to install an in-line filter in the suction line near the compressor inlet. 7. Add the proper type and amount of ac oil as per manufacturers procedures. 8. Apply a vacuum to the car ac system. A minimum of 29 inches of mercury for one hour to insure moisture and residual flushing solids or boiled from the system. 9. Recharge your air conditioning system using the recommended Freon. 10. After you finish your repairs, conduct a complete system performance test.