Honda R18A1 1.8L L4 Remanufactured Engine 2006-2011

SKU: 122
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Turn heads quickly using the custom LS Classic GMLS9006 495HP crate engine package right now. We pair a 376 CID aluminum block with cast BBC valve covers and Holley EFI.

  • 495 HP dominates highway cruising easily
  • 473 TQ pulls heavy custom chassis
  • All aluminum engine drops vehicle weight
$2,609.00
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Description

Restore the legendary reliability of your daily driver with the Honda R18A1 1.8L Remanufactured Engine. This 1.8-liter inline-4 uses a highly efficient aluminum block and cylinder head configuration to deliver factory-fresh smooth operation and incredible fuel economy. Completely torn down and remanufactured using precision CNC machining to correct factory wear patterns, this drop-in replacement engine guarantees your eighth-generation Civic gets back on the road safely.

Key Features of Honda R18A1 1.8L

  • Complete Factory Remanufacturing: Disassembled, cleaned, and precision-machined to establish exact factory-fresh internal tolerances.
  • Aluminum Cylinder Head: Fully reconditioned with multi-angle valve jobs and new valve stem seals to restore optimal compression.
  • Precision Bored Cylinders: Honed with torque plates to ensure perfect piston ring sealing and eliminate annoying oil consumption.
  • Micro-Polished Crankshaft: Ground to exact specifications to maximize bearing lifespan and ensure smooth four-cylinder operation.
  • i-VTEC Valvetrain: Retains Honda’s legendary variable valve timing system to balance low-end torque with highway fuel efficiency.
  • New Gaskets & Seals: Assembled with premium replacement gaskets to ensure a completely leak-free installation right out of the crate.

Component Breakdown: Remanufactured Long Block Configuration

This replacement assembly includes the essential internal components completely pre-installed.

  • Features a fully assembled aluminum cylinder head attached and torqued to the precision-machined short block
  • Contains the pre-installed overhead camshaft valves and matching valvetrain hardware pre-lubricated for assembly

Vehicle Fitment & Compatibility Matrix

Verify your specific trim level before purchasing to ensure accessory bracket alignment. Swapping in a remanufactured Honda 1.8L engine keeps your daily commuter running for years to come.

  • Fits 2006-2011 Honda Civic DX LX and EX models equipped with the 1.8L R18A1 naturally aspirated engine
  • Fits 2006-2011 Honda Civic coupes and sedans utilizing either manual or automatic factory transmissions
  • Fits select international Honda variants utilizing the R18 family 1.8-liter SOHC i-VTEC architecture

Fuel & Ignition System Requirements

Transfer your existing external components to get this remanufactured engine running perfectly.

  • Requires the original multi-point fuel injection intake manifold and factory Honda fuel rail
  • Operates seamlessly with the OEM coil-on-plug ignition system and factory engine control unit

Installation, Break-In Oil & Priming Instructions

Strict adherence to startup protocols prevents premature failure of the new bearings.

  • Prime the oiling system manually by disabling the fuel injectors and cranking the engine before the final startup
  • Fill the crankcase with premium conventional oil for the first 500 miles before switching to your preferred synthetic blend

USA Warranty, Emissions & Logistics

Backed by comprehensive coverage and straightforward commercial shipping logistics.

  • Covered by a standard remanufactured engine warranty protecting against defects in workmanship and materials
  • Complies with original factory emission standards when used with intact OEM exhaust and catalytic converters

Honda R18A1 1.8L L4 Remanufactured Engine – 2006-2011 Additional Info

Weight190 lbs
Dimensions36 × 36 × 36 in
Important NotesR18A1 Eng.
Block CastingR18A1, RNA
Crank CastingRNA
Body Style1799
Fuel TypeGasoline
Displacement1.8L
Number of Cylinders4
Product TypeEngines
Block TypeL
Head TypeSOHC
Number of Valves16

Honda R18A1 1.8L L4 Remanufactured Engine – 2006-2011 Vehicle Fitment

YearMakeModelEngineNote
2006 - 2011HondaCivicL4 1.8L 1799ccIn-Line Head Cast # RNA, R60, Cam Cast # RNA, Crank Cast # RNA, Block Cast # R18A1, RNA, Chain Driven Cam, Screw-in S/P Adapters

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