Skip to content
Used engines, transmissions and Harley-Davidson motorcycles shipped nationwide. 90 day warranty. +1 503-551-4892  ·  Sales@hanedaautos.com  ·  Grand Rapids, Michigan
2006-2011 Honda Civic 1.8L Inline-4 SOHC i-VTEC Engine JDM R18A R18A1

2006-2011 Honda Civic 1.8L Inline-4 SOHC i-VTEC Engine JDM R18A R18A1

Stock number HON-EN-R18A-001

$899.99

In stock, ships from Grand Rapids

Stock numberHON-EN-R18A-001
MakeHonda
Engine codeR18A
Fits model years2006-2011
CategoryEngines, Honda Engines
Shipping weight280 lbs (estimated)
ConditionUsed, imported from Japan, tested before dispatch
Warranty90 days from delivery

Prefer to write it down? Call +1 503-551-4892 or email Sales@hanedaautos.com.

Get a freight price first

This ships by freight. It travels bolted to a pallet, and the price depends on your ZIP, whether the address is residential and whether you need a liftgate. Order online and we will send the freight price before anything leaves the floor, or get the price up front below.

Checking fitment? Call +1 503-551-4892 or email Sales@hanedaautos.com with your VIN and we will confirm it against this unit.

About this unit

FeatureDetail
Engine CodeR18A (JDM Version)
Displacement1.8 Liter
ConfigurationInline 4-Cylinder
Valve TrainSOHC 16-Valve i-VTEC
Block MaterialAluminum Alloy
HorsepowerApprox. 140 hp @ 6300 RPM
Torque128 lb-ft @ 4300 RPM

Vehicle Fitment

This engine serves as a direct long-block replacement for the following North American models:

  • Honda Civic Sedan (DX, LX, EX): 2006, 2007, 2008, 2009, 2010, 2011

  • Honda Civic Coupe (DX, LX, EX): 2006, 2007, 2008, 2009, 2010, 2011

  • Compatibility Note: This engine is for the 1.8L Non-Si models only. It is NOT compatible with the 2.0L Civic Si (K20Z3) or the Civic Hybrid.

JDM to USDM Installation & Swap Guide

To ensure 100% compatibility and maintain your Civic’s OBDII compliance, professional technicians recommend the following “External Swap” steps:

  1. Intake & Exhaust Manifolds: You must transfer your original USDM Intake Manifold and Exhaust Manifold. JDM versions may have different vacuum port layouts and lack specific sensors required for North American emissions.

  2. Wiring Harness: Always retain and use your original USDM Engine Wiring Harness. JDM harnesses are configured for right-hand drive (RHD) and will not interface with your Civic’s chassis bulkheads or ECU location.

  3. Engine Sensors: Transfer your original USDM Camshaft, Crankshaft, and Knock Sensors. Using your “known-good” sensors prevents intermittent signal issues or Check Engine Light codes.

  4. Water Housing: Transfer your original USDM water housing and thermostat housing to ensure the coolant temperature sensors and hose locations match your factory cooling system.

What is included

You receive exactly what is pictured. Engines are supplied as a long block assembly with the components visible in the photos. Accessories such as the alternator, starter, intake manifold or sensors are included only where you can see them on the unit, so check the photographs before ordering and ask us if anything is unclear.

Before you order

  • Confirm the engine code against your own vehicle, not just the model year.
  • Japanese market units can differ from the US version in intake, loom and sensors.
  • Replace the timing components, water pump and seals while the unit is out. It is cheap insurance on an engine this age.
  • Keep your original accessories until the swap is finished and running.

Others that fit a similar job

All honda engines
Scroll to Top