Honda Civic R18A1 1.8L i-VTEC Engine

Name: Honda Civic Engine Motor suit FD 2006-2011 R18A1 1.8L Petrol 4 Cylinder i-VTEC
Brand: Parts Factory Australia
SKU: R18A1-REMAN
Price: 4650 AUD
Availability: InStock

High Quality Honda Civic R18A1 Engine

Honda Civic R18A1 Engine

Top Quality Manufacturer Selected.
Common Engine Design Issues Fixed / Resolved.
One Year Product Warranty Included as Standard
Directly Plug & Play Engines. No Modifications Required.

Customer Reviews

Hundreds of High Quality Positive Reviews.

Straight Drop in Plug and Play. Customer was happy. No Complaints so far after 4 Months.

Might have been cheaper to buy second hand but the 2 year warranty justified the extra 2k. Happy.

2nd Motor purchased from this crew and delivered within the 12 day period. Both motors running well as they should for the price.

Good Quality Overall. Cant fault them. Interesting to see in 5-10 years time how these motors run, but for now they are great.

I-load Motor purchased October 22. Continues to run till Present. Happy with my Purchase would recommend to anyone that needs a quality engine.

Very Good. Delivery took 15 Days but we are still happy. The Product Quality was as Described. Wouldn't hesitate to purchase again.

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Shipping & Handling

Free Shipping anywhere within Australia.
All Crate Engines are Shipped with Team Global Express.
Delivery Times can vary between 5-11 Days as we have multiple warehouses in Various Cities.
All Crate Engines are shipped with Insurance as Standard.
We have Expedited Shipping Available on Checkout.
International Postage is Available upon Request.

5 Main Differences

What Makes Crate Engines the Best Choice?

Centra Steel Crankshaft:
Our crankshafts are made from Centra Steel, offering superior compressive strength compared to forged steel, ensuring durability and long-lasting performance.
Precision Tolerances:
We maintain crankshaft tolerances of no more than 2S, delivering exacting precision that guarantees smoother operation and reduced wear over time.
OEM Precision Design:
Our engines are built to a 1:1 specification, with 98% of the original OEM design followed, ensuring compatibility and reliability.
Skilled Workforce:
Every engine is assembled by highly skilled employees with a minimum of 5 years of hands-on engine-building experience, ensuring expertise and attention to detail.
High-Grade Aluminum:
We use only high-grade aluminum for the engine head and block (where applicable), ensuring lightweight strength and heat resistance, vital for engine longevity.

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Warranty & Returns

All Crate Engines include a 1 Year Manufacture Warranty.
Certain Guidelines Must be Followed in order to ensure this Warranty is accepted upon the event of a failure.
Our website will Store your information, so if a warranty issue does come up, we have all your details.
Please see our Warranty or Returns Sections.
Returns are Accepted within 7 Days, providing the Engine has not be Used / Dismantled.
Extended Warranty available on Checkout!

More Information about

Honda Civic R18A1 Engine

Professionally Remanufactured Honda Civic R18A1 Engine

This Honda Civic R18A1 Engine is a professionally remanufactured 1.8-litre petrol long motor suitable for selected Australian Honda Civic FD vehicles manufactured between 2006 and 2011 and originally fitted with the R18A1 engine.

The R18A1 is a 1,799cc inline four-cylinder petrol engine featuring a single overhead camshaft, 16 valves, Honda i-VTEC technology, electronic drive-by-wire throttle control and PGM-FI multipoint fuel injection. In Australian specification, the Honda Civic 1.8 Engine produced approximately 103kW at 6,300rpm and 174Nm at 4,300rpm. It was available with five-speed manual and five-speed automatic transmissions in selected Civic VTi and VTi-L sedan models.

Cylinder block

Remanufactured Honda casting

Cylinder head

Remanufactured Honda casting

Crankshaft

Brand new

Valves & timing

Brand new

Not an entirely brand-new engine — read this firstNew Honda R18A1 cylinder-block and cylinder-head castings are no longer readily available. For that reason, the engine uses original Honda block and cylinder-head castings that have been professionally inspected, machined and remanufactured, then assembled using new internal components.

The correct product description is: professionally remanufactured R18A1 long motor using remanufactured original Honda head and block castings with new internal components.

This replacement long motor provides an alternative to installing a second-hand engine with unknown kilometres, maintenance history or internal wear.

✓ New crankshaft, valves and timing

✓ Supplied as a bare engine / long motor

✓ No exchange engine required

✓ Free delivery to eligible locations

✓ One-year product warranty

Remanufactured Honda R18A1 1.8L i-VTEC long motor for Civic FD

R18A1 engine with new crankshaft, valves and timing chain kit

Honda Civic 1.8 R18A1 replacement engine packed for delivery

Important R18A1 Condition Disclosure

This Honda Civic R18A1 Engine is not advertised as an entirely brand-new engine.

The remanufactured Honda castings are then assembled using new internal components. These include a brand-new crankshaft, new valves, new timing components, new bearings, new pistons and rings, new gaskets, new seals and other new internal wear components.

The original Honda block may undergo

✓ Cleaning and inspection
✓ Dimensional measurement
✓ Cylinder inspection and machining
✓ Deck-surface inspection
✓ Main-bearing alignment checks
✓ Thread and sealing-surface inspection
✓ Final cleaning before assembly

The original Honda cylinder head may undergo

✓ Cleaning and inspection
✓ Pressure or crack testing
✓ Surface inspection and machining
✓ Valve-seat inspection
✓ Installation of new valves
✓ Installation of new valve-stem seals
✓ Camshaft and valvetrain inspection
✓ Final cleaning before assembly

New internal engine components used during assembly

✓ Brand-new crankshaft
✓ Brand-new intake valves
✓ Brand-new exhaust valves
✓ Brand-new valve-stem seals
✓ Brand-new pistons
✓ Brand-new piston rings
✓ Brand-new main bearings
✓ Brand-new connecting-rod bearings
✓ Brand-new timing chain
✓ Brand-new timing-chain tensioner
✓ Brand-new timing-chain guides
✓ Brand-new timing gears and sprockets
✓ Brand-new gaskets
✓ Brand-new oil seals
✓ Other new internal wear components used throughout the engine

Exact components and inclusions are confirmed by the supplied engine specification, product photographs and invoice.

Engine-code confirmation is essentialThe original engine must be confirmed as R18A1 or the matching Australian R18A application before ordering.

Honda Civic R18A1 Engine Specifications

Engine code	R18A1 / R18A
Engine family	Honda R-Series
Capacity	1,799cc
Engine size	1.8 litres
Configuration	Inline four-cylinder
Fuel type	Petrol
Induction	Naturally aspirated
Fuel system	Honda PGM-FI electronic multipoint injection
Throttle system	Electronic drive-by-wire
Valve system	SOHC, 16 valves
Valve technology	i-VTEC
Bore	81.0mm

Stroke	87.3mm
Compression ratio	Approximately 10.5:1
Factory power	Approximately 103kW at 6,300rpm
Factory torque	Approximately 174Nm at 4,300rpm
Timing system	Timing chain
Cylinder block	Aluminium Honda casting
Cylinder head	Aluminium Honda casting
Cooling system	Water-cooled
Original emissions standard	Euro 4 Australian specification
Condition	Professionally remanufactured with new internals
Warranty	One-year product warranty
Exchange engine required	No

R18A1 Long-Motor Inclusions

The Honda Civic 1.8 Engine is supplied as a bare engine or long motor. It generally includes:

The long motor generally includes

✓ Remanufactured original Honda cylinder block
✓ Remanufactured original Honda cylinder head
✓ New crankshaft
✓ New pistons and piston rings
✓ New internal bearings
✓ Camshaft and internal valvetrain
✓ New intake and exhaust valves
✓ New valve-stem seals
✓ New timing chain
✓ New timing-chain guides
✓ New timing-chain tensioner
✓ New timing gears
✓ Timing cover
✓ Rocker or camshaft cover
✓ Engine oil sump
✓ New assembly gaskets and seals

Components that must be transferred

↻ Intake manifold
↻ Exhaust manifold
↻ Electronic throttle body
↻ Fuel rail
↻ Fuel injectors
↻ Ignition coils
↻ Engine wiring harness
↻ ECU
↻ Sensors not supplied
↻ Starter motor
↻ Alternator
↻ Air-conditioning compressor
↻ Engine mounts and brackets
↻ Flywheel or flexplate
↻ Clutch components
↻ Transmission-specific components
↻ Vehicle-specific pipes, hoses and covers

Exact inclusions are determined by the product photographs and invoice. Components not shown or specifically identified as included must be transferred or purchased separately.

Inspect before transferring. Transferred components must be professionally inspected before installation. A faulty external component can damage the replacement motor and may affect warranty coverage.

Honda Civic FD Compatibility

This Honda Civic R18A1 Engine may suit selected:

✓ Honda Civic FD 1.8L sedan models
✓ Honda Civic FD1 models
✓ Honda Civic VTi
✓ Honda Civic VTi-L
✓ Honda Civic VTi Limited Edition
✓ Honda Civic 40th Anniversary
✓ Honda Civic Limited Edition
✓ Vehicles built from February 2006
✓ Vehicles manufactured through 2011
✓ Some vehicles registered during early 2012
✓ Five-speed manual models
✓ Five-speed automatic models

Dates overlap. Build and registration dates can overlap. Compatibility must be confirmed using the VIN, engine number, build date and transmission details.

Important Civic Engine Differences

Not every 2006–2011 Honda Civic uses the R18A1. This engine is different from:

× K20Z2 fitted to selected Civic Sport models
× LDA petrol-electric Civic Hybrid engines
× K20Z4 and other Civic Type R engines
× European-market R18A2 engines
× Later R18Z1 engines
× Other R18Z-series engines
× Earlier D-Series Civic engines
× K20 and K24 engine conversions

R18A1 · THIS ENGINENOT K20Z2 · CIVIC SPORTNOT LDA · HYBRID NOT K20Z4 · TYPE RNOT R18A2NOT R18Z1 / R18Z NOT D-SERIES

Similar external appearance does not confirm interchangeability. Different versions may use different engine mounts, cylinder heads, sensors, intake systems, emissions equipment, wiring and ECU calibration.

When Is a Replacement Engine Required?

A replacement engine may be required when the original motor has suffered serious damage or is no longer economical to rebuild. Possible symptoms include:

• Cracks or coolant leakage from the engine block
• Engine overheating
• Persistent coolant loss
• Excessive engine-oil consumption
• Blue or white exhaust smoke
• Low compression
• Difficult starting
• Timing-chain noise
• Valve damage
• Low engine-oil pressure
• Crankshaft or bearing noise
• Internal knocking
• Piston or cylinder damage
• Metal contamination in the lubrication system

Diagnose first. These symptoms must be professionally diagnosed. The cause of the original engine failure must be identified and corrected before installing the replacement engine.

Systems to Inspect Before Installation

Cooling-system inspection

The complete cooling system must be inspected, flushed and pressure-tested before installation. The workshop should check:

✓ Radiator condition and flow
✓ Cooling fans and fan controls
✓ Thermostat operation
✓ Radiator cap
✓ Coolant hoses
✓ Heater circuit
✓ Coolant reservoir
✓ Water pump
✓ Temperature sensors

A damaged, blocked or contaminated cooling system can overheat the replacement Honda Civic R18A1 Engine.

Use the correct Honda-compatible coolant and bleed the system according to the applicable workshop procedure.

Fuel, ignition and intake inspection

The fuel injectors, fuel rail, throttle body and intake manifold must be cleaned and tested before being transferred.

The ignition coils and spark plugs should also be inspected. Incorrect ignition or fuel delivery can cause poor combustion, misfiring, cylinder damage or catalytic-converter failure.

Any debris remaining inside the intake system following the original engine failure must be removed.

Timing and lubrication requirements

The engine is assembled using a new timing chain, tensioner, guides and timing gears. The installer must still verify correct mechanical timing before startup.

Use new engine oil and a new oil filter. The lubrication system must be primed so the engine develops oil pressure before it is allowed to start.

The engine must not be started or operated without confirmed oil pressure.

Professional Installation Requirements

This engine must be installed by a qualified mechanic familiar with Honda i-VTEC engines. Before installation, the workshop should:

1Confirm the R18A1 engine code
2Diagnose the original engine failure
3Inspect all transferred components
4Flush and pressure-test the cooling system
5Clean the intake manifold and throttle body
6Test the fuel injectors
7Inspect the ignition coils
8Install new spark plugs where required
9Install new engine oil and filter
10Install fresh coolant
11Prime the lubrication system
12Verify mechanical timing
13Check for diagnostic trouble codes
14Complete the Honda idle-learning procedure
15Inspect for fuel, oil and coolant leaks
16Confirm correct oil pressure
17Confirm correct operating temperature

Keep your paperwork. All installation, servicing and component-testing invoices should be retained for warranty purposes.

Australia-Wide Delivery and Warranty

No exchange engine is required. Customers can retain their damaged engine until all necessary external components have been transferred.

The motor is securely packed for transport and includes free standard delivery to eligible Australian locations. Remote-area, residential, tailgate and special-handling charges may apply.

A one-year product warranty is included, subject to the published warranty and installation conditions. The warranty does not cover damage caused by incorrect installation, overheating, oil starvation, faulty transferred components, contaminated systems or unresolved vehicle faults.

Read our engine ordering and warranty information before purchasing.

Honda Civic R18A1 Engine FAQs

Is this engine entirely brand new?

No. The original Honda cylinder-head and block castings are professionally remanufactured because new R18A1 castings are no longer readily available. The internal wear components are new.

Is the crankshaft new?

Yes. The engine is assembled using a brand-new crankshaft.

Are the valves new?

Yes. New intake valves, exhaust valves and valve-stem seals are installed.

Is the timing system new?

Yes. The timing chain, guides, tensioner and timing gears are new.

Why are the block and cylinder head remanufactured?

Correct new Honda castings are no longer readily available. Suitable original Honda castings are therefore inspected, machined and professionally remanufactured.

Does the engine include the intake manifold?

No. This is a long motor. The intake manifold, exhaust manifold and other external parts must normally be transferred.

Does it fit every 2006–2011 Honda Civic?

No. It only suits selected vehicles originally fitted with the R18A1 or matching R18A engine.

Will it fit a Civic Sport?

Not if the vehicle is fitted with the K20Z2 2.0L engine.

Will it replace an R18A2 or R18Z1?

Not automatically. Full mechanical and electronic compatibility checks are required.

Is an exchange engine required?

No exchange motor is required.

How do I confirm compatibility?

Provide the VIN, engine number, build date, model variant, transmission and photographs of the original engine.

Order Your Honda Civic 1.8 Engine

This professionally remanufactured R18A1 long motor combines properly prepared original Honda head and block castings with a new crankshaft, new valves, new timing components and other new internal wear parts.

Send Crate Engines Australia your VIN and complete engine number before ordering so the application can be checked accurately.

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