Honda Civic R18Z1 1.8L i-VTEC Engine

Name: Honda Civic Engine Motor suit FC6 / FK5 2016-2021 R18Z1 1.8L Petrol 4 Cylinder i-VTEC
Brand: Parts Factory Australia
SKU: R18Z1-REMAN
Price: 4650 AUD
Availability: InStock

High Quality Honda Civic R18Z1 Engine

Honda Civic R18Z1 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 R18Z1 Engine

Professionally Remanufactured Honda Civic R18Z1 Engine

This Honda Civic R18Z1 Engine is a professionally remanufactured 1.8-litre petrol long motor suitable for selected Australian Honda Civic FC6 sedan and FK5 hatchback models manufactured between 2016 and 2021.

The R18Z1 belongs to Honda’s R-Series engine family. It uses a 1,799cc inline four-cylinder configuration with a single overhead camshaft, 16 valves, i-VTEC valve technology, electronic drive-by-wire throttle control and Honda PGM-FI multipoint fuel injection. In Australian specification, the engine produces approximately 104kW at 6,500rpm and 174Nm at 4,300rpm. It was fitted to selected naturally aspirated Civic VTi and VTi-S models with a Continuously Variable Transmission.

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 cylinder-head and block castings for this engine are no longer readily available. For this reason, the engine uses original Honda R18Z1 cylinder-head and cylinder-block castings that have been professionally inspected, machined and remanufactured, then assembled using new internal components.

The correct description is: professionally remanufactured R18Z1 long motor using remanufactured original Honda head and block castings with new internal parts.

The Civic FC6 Replacement Engine provides an alternative to purchasing a second-hand motor with unknown kilometres, service 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 R18Z1 1.8L i-VTEC long motor for Civic FC6 and FK5

R18Z1 engine with new crankshaft, valves and timing chain kit

Honda Civic FC6 R18Z1 replacement engine packed for delivery

Important R18Z1 Condition Disclosure

This Honda Civic R18Z1 Engine is not advertised as an entirely brand-new engine.

The professionally remanufactured Honda castings are then assembled using new internal components.

The original Honda block may undergo

✓ Complete cleaning and inspection
✓ Cylinder measurement 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

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

New R18Z1 internal 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 engine gaskets
✓ Brand-new engine seals
✓ Other new internal wear components used throughout the assembly

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

Engine-code confirmation is essentialThe original engine must be stamped R18Z1 or confirmed as the corresponding Australian R18Z application. The model name and engine capacity alone cannot confirm compatibility.

Honda Civic R18Z1 Engine Specifications

Engine code	R18Z1 / R18Z
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 multipoint injection
Throttle system	Electronic drive-by-wire
Intake system	Variable-length intake manifold
Valve system	SOHC, 16 valves
Valve technology	i-VTEC
Bore	81.0mm

Stroke	87.3mm
Compression ratio	Approximately 10.6:1
Factory power	Approximately 104kW at 6,500rpm
Factory torque	Approximately 174Nm at 4,300rpm
Timing system	Timing chain
Cylinder block	Aluminium-alloy Honda casting
Cylinder head	Aluminium-alloy Honda casting
Cooling system	Water-cooled
Original transmission	CVT automatic
Original emissions standard	Euro 5
Condition	Professionally remanufactured with new internals
Warranty	One-year product warranty
Exchange engine required	No

R18Z1 Long-Motor Inclusions

The Honda Civic R18Z1 Engine is supplied as a bare engine or long motor. It generally includes:

The long motor generally includes

✓ Remanufactured Honda cylinder block
✓ Remanufactured Honda cylinder head
✓ New crankshaft
✓ New pistons and piston rings
✓ New main and connecting-rod 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

↻ Variable-length intake manifold
↻ Exhaust manifold
↻ Catalytic-converter components
↻ 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
↻ Flexplate
↻ CVT transmission components
↻ Vehicle-specific pipes, hoses and covers

Exact inclusions depend on the supplied motor, product photographs and invoice. Components not shown or specifically listed must be transferred or purchased separately.

Inspect before transferring. Every transferred part must be professionally inspected. Faulty external components can damage the replacement engine and may affect warranty coverage.

Honda Civic FC6 Sedan Compatibility

The Civic FC6 Replacement Engine may suit selected:

✓ Honda Civic FC6 VTi sedan
✓ Honda Civic FC6 VTi-S sedan
✓ Selected FC6 VTi-based special editions
✓ Selected 2016 Honda Civic 1.8L models
✓ Selected 2017 Honda Civic 1.8L models
✓ Selected 2018 Honda Civic 1.8L models
✓ Selected 2019 Honda Civic 1.8L models
✓ Selected 2020 Honda Civic 1.8L models
✓ Selected 2021 Honda Civic 1.8L models
✓ Front-wheel-drive CVT applications
✓ Vehicles originally fitted with R18Z1

Dates overlap. Build dates and registration years may overlap. Always verify the VIN and engine number.

Honda Civic FK5 Hatchback Compatibility

The R18Z1 may also suit selected:

✓ Honda Civic FK5 VTi hatchback
✓ Honda Civic FK5 VTi-S hatchback
✓ Selected VTi-based hatchback special editions
✓ Civic hatchback models from approximately 2017 to 2021
✓ Front-wheel-drive CVT applications
✓ Vehicles originally fitted with R18Z1

Sedan and hatch differ externally. The sedan and hatchback may use different brackets, sumps, intake pipes, wiring or other external components. Transfer the correct vehicle-specific equipment from the original engine.

Earlier R18Z1 Applications

The R18Z1 engine code was also used in selected earlier Honda Civic FB applications in some markets.

This listing is written specifically for the 2016–2021 FC6 and FK5 Civic. Earlier FB-series vehicles require separate fitment verification because their external components, wiring, intake system, emissions equipment and transmission arrangement may differ.

Do not purchase this engine for an earlier vehicle without full mechanical verification.

Important Civic Engine Differences

Not every 2016–2021 Honda Civic uses this Honda Civic R18Z1 Engine. This motor does not directly replace:

× L15B7 1.5L turbo engines
× Civic VTi-L turbo engines
× Civic RS turbo engines
× Civic VTi-LX turbo engines
× K20C1 Civic Type R engines
× Civic Hybrid powertrains
× Earlier R18A1 engines without verification
× R18A2 engines
× R18Z4 European applications
× Honda HR-V R18Z9 engines

R18Z1 · THIS ENGINENOT L15B7 · 1.5 TURBONOT VTi-L / RS / VTi-LX NOT K20C1 · TYPE RNOT HYBRIDNOT R18A1 / R18A2 NOT R18Z4NOT R18Z9 · HR-V

Although these engines may belong to related Honda engine families, the cylinder heads, compression ratios, intake systems, sumps, sensors, emissions components, wiring and ECU calibration can differ.

When Is an R18Z1 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:

• Excessive engine-oil consumption
• Persistent blue or white exhaust smoke
• Low compression
• Difficult starting
• Engine overheating
• Coolant loss
• Cylinder-head or head-gasket damage
• Timing-chain noise
• Low engine-oil pressure
• Crankshaft or bearing noise
• Internal knocking
• Valve damage
• Piston or cylinder damage
• Metal contamination in the lubrication system

Diagnose first. These symptoms should be professionally diagnosed before ordering an engine. The original cause of failure must be identified and corrected before the replacement motor is installed.

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 coolant flow
✓ Cooling fans and fan-control system
✓ Thermostat
✓ Radiator cap
✓ Coolant hoses
✓ Heater circuit
✓ Coolant reservoir
✓ Water pump
✓ Coolant-temperature sensors

A blocked radiator, faulty thermostat, failed fan or unresolved coolant leak can overheat and damage the replacement Civic FC6 Replacement Engine.

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

Intake, fuel and ignition inspection

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

The ignition coils and spark plugs must also be checked. Incorrect fuel delivery or ignition faults can cause misfiring, poor combustion, piston damage or catalytic-converter failure.

Clean all debris, oil and contamination from the intake system following the original engine failure.

Timing and lubrication requirements

The engine is assembled using a new timing chain, new timing-chain guides, a new tensioner and new timing gears. The installer must still confirm correct mechanical timing before the engine is started.

Use new engine oil and a new oil filter. Prime the lubrication system before startup so the engine develops oil pressure before operating.

Do not allow the engine to run without confirmed oil pressure.

Professional Engine Installation

This Honda Civic R18Z1 Engine must be installed by a qualified mechanic familiar with Honda i-VTEC engines and CVT-equipped vehicles. Before installation, the workshop should:

1Confirm the R18Z1 engine number
2Diagnose the original engine failure
3Inspect every transferred component
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 oil, coolant and filters
10Prime the lubrication system
11Verify mechanical timing
12Scan and clear diagnostic trouble codes
13Complete the Honda idle-learning procedure
14Inspect for oil, coolant and fuel leaks
15Confirm correct oil pressure
16Confirm correct operating temperature

Keep your paperwork. Keep all installation, servicing and component-testing invoices for warranty purposes.

Australia-Wide Delivery and Warranty

No exchange engine is required. Customers may retain their original engine until all required components have been transferred.

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

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

Read our engine ordering and warranty information before purchasing.

Honda Civic R18Z1 Engine FAQs

Is this motor entirely brand new?

No. The original Honda cylinder head and block are professionally remanufactured because new R18Z1 castings are no longer readily available. The internal wear components are new.

Is the crankshaft brand new?

Yes. The engine is assembled with 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.

Does the engine fit the FC6 sedan?

It may suit selected FC6 VTi and VTi-S models originally fitted with R18Z1.

Does it fit the FK5 hatchback?

It may suit selected FK5 VTi and VTi-S hatchback models originally fitted with R18Z1.

Does it fit Civic RS or VTi-L models?

Not if the vehicle uses the L15B7 1.5L turbo engine.

Does it fit a Civic Type R?

No. The Civic Type R uses a different turbocharged K20C1 engine.

Does it replace an R18A1?

Not automatically. The earlier R18A1 application requires separate verification.

Is an exchange engine required?

No exchange engine is required.

How do I confirm compatibility?

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

Order Your Civic FC6 Replacement Engine

This professionally remanufactured R18Z1 long motor combines correctly prepared original Honda cylinder-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 engine application can be checked accurately.

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