Welcome To Just Rotaries , Your reliable source of

Mazda Rotary Parts

Just Rotaries is a premier destination for rotary engine enthusiasts and owners, offering a comprehensive range of services, parts, and expertise dedicated to the unique needs of rotary-powered vehicles. With a passionate team of experts, we provide high-quality components, custom modifications, and professional advice to ensure your rotary engine performs at its best. 

Welcome to Just Rotaries: Your Premier Source for Rotary Engine Expertise

Welcome to Just Rotaries, the ultimate destination for enthusiasts and owners of rotary engines. Our commitment to excellence and passion for rotary technology drive us to offer an unparalleled selection of parts, services, and advice. Dive into the world of rotary engines with us and discover why Just Rotaries is the preferred choice for enthusiasts across Australia. We supply rotary engine parts, 12a rotary parts, Rx7 racing parts, RX7 FD performance parts, and Mazda OEM rotary parts.

Just Rotaries

We are a Mazda rotary spare parts specialist


For inquiries, support, or feedback, connect with us through the following channels:

We’re here to help and look forward to hearing from you.

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Why Just Rotaries

Just Rotaries is a company dedicated to the passion and technology behind rotary engines. These engines, known for their unique design and high power-to-weight ratio, have a fervent following among car enthusiasts.

Just Rotaries taps into this niche, offering a specialized focus on products, services, and information related to rotary engines. Whether it’s through providing parts, or expert advice, Just Rotaries aims to be the ultimate hub for all things rotary. Our commitment to this specialized segment of the automotive industry demonstrates our expertise and dedication to serving the needs of rotary engine enthusiasts across Australia.


Our Services

  • Parts Supply: Explore our extensive inventory of high-quality rotary engine parts. From seals to rotors, we have everything you need to keep your engine running at its best.
  • Expert Consultation: Benefit from our in-depth knowledge and expertise. Whether you’re undertaking a full rebuild or need maintenance tips, our team is here to assist.
  • Technical Support: Access to experienced technical support for any questions or issues that arise, ensuring you have the knowledge and support needed to keep your rotary engine running smoothly.

Mazda Rotary Parts We deal In

We have a large stock range of quality used Mazda Rotary spare parts , if we do not have the parts you need , we will try our best to find the parts for you

Parts available for most Mazda Rotaries

We are a Mazda rotary spare parts specialist

We cater for most Rotary and old school Mazda cars

We Deliver Across Australia: Wrecking, Used Parts, New Aftermarket Parts

Just Rotaries is your one stop Mazda rotary shop, we try to supply all the hard to get parts , new , used and aftermarket , to suit most years and models including,

MAZDA Rotary RX series include:

  • RX2 RX3 RX4 RX5 RX7 series 1 
  • RX7 series 2 
  • RX7 series 3 
  • RX7 series 4 
  • RX7 series 5 
  • RX7 series 6 
  • RX7 series 7
  • RX7 series 8 
  • RX8 series 1 
  • RX8 series 2

Piston model Mazda models:

  • Mazda 1200 
  • Mazda 1300 
  • Capella 929, 121  
  • Sedan, convertible, hard top, coupe, two-door sedan
  • Rotary engines: 10a 12a 13b 13bt 13b n/a
  • Model codes S102A , S124A , STC , SN3A , FA3TS , STB , LA22S ,  LA23S , LA2VS , SA22C , FC3S , FD3S
  • Mazda Luce/929
  • Mazda MX-5 Miata

Parts We Can Supply Includes 

  • Electrical: wiring looms, wipe motor, coil, regulators, taillights, headlights, lights, window motors, radio,  air conditioner, interior light, switches
  • Chasis: guards,  fenders, doors, boots, bonnets, body cuts, shells, mirrors, radiator support
  • Engine: motors, carby, fuel pump, Housings, engine mounts, Sumps, Water pumps, radiators, Oil coolers, Turbo, Rotors, Apex Seals, Side Seals, Corner Seals, Rotor Housing, Eccentric Shaft, Stationary Gears, Oil Metering Pump (OMP).
  • Interior: headlights, front seats, rear seats, door cards, door trims, Interior trims, kick panels, door handles, pull  handles, window winders, window regulators
  • Exterior: mirrors,  glass, windows, windscreen, body moulds, body trims, badges, emblems, exterior  door handles, door locks, boot locks, bonnet latches, bonnet stays
  • Cooling System

    • Water Pump: Circulates coolant through the engine to maintain optimal operating temperatures.
    • Radiator: Dissipates heat from the coolant as it passes through.
    • Thermostat: Regulates the flow of coolant based on the engine temperature.
    • Coolant Hoses: Transport coolant to and from the radiator and engine.

    Fuel System

    • Fuel Injectors: Deliver fuel into the combustion chamber.
    • Fuel Pump: Supplies fuel from the tank to the injectors.
    • Fuel Lines: Transport fuel throughout the system.
    • Intake Manifold: Distributes air (and sometimes fuel) to the rotors.
  • Transmission and Drivetrain (if applicable)

    • Clutch Kit: Connects and disconnects the engine from the drivetrain.
    • Flywheel: This balances the engine and provides a surface for the clutch to engage.
    • Drive Shaft: Transfers power from the transmission to the differential.
  • Electronics and Sensors

    • Engine Control Unit (ECU): The brain of the engine, controlling various parameters for optimal performance.
    • Temperature Sensors: Monitor engine and coolant temperatures.
    • Oxygen Sensors: Measure the oxygen levels in exhaust gases for optimal fuel combustion.
  • Ignition System

    • Spark Plugs: Ignite the air/fuel mixture within the rotors.
    • Ignition Coils: Provide the necessary voltage for spark plug ignition.
    • Distributor: Distributes the spark to each spark plug in the correct sequence.
  • Exhaust System

    • Exhaust Manifold: Collects exhaust gases from the rotor housings.
    • Catalytic Converter: Reduces harmful emissions from exhaust gases.
    • Exhaust Pipes: Channel exhaust gases away from the engine.
    • Muffler: Reduces the noise produced by exhaust gases.

Our Services Include

At Just Rotaries, we specialize in offering a comprehensive selection of Mazda rotary performance parts, catering to enthusiasts and professionals alike. Our inventory encompasses everything from essential rotary engine components to specific Mazda rotary engine and parts, ensuring that we meet all your needs for enhancing performance and maintaining the exceptional condition of your Mazda rotary vehicles. Our commitment to quality, combined with expert advice and support, makes us your go-to destination for all things related to Mazda rotary parts and performance upgrades.

Why Choose Us?

  • Unmatched Expertise: With years of experience and a deep understanding of rotary engines, we provide insights and solutions you can trust.
  • Quality Guarantee: We stand behind the quality of our products and services, ensuring your complete satisfaction with every purchase.
  • Passion for Rotary Engines: Our dedication goes beyond business. We’re enthusiasts at heart, committed to promoting and advancing the rotary engine.

Frequently Asked Questions

Just Rotaries specializes in a wide range of Mazda Rotary parts, including engine components like apex seals, rotors, and oil metering pumps, as well as cooling system parts, fuel system components, transmission and drivetrain parts, electronics and sensors, and ignition system components. They cater to most Rotary and old school Mazda cars, offering both new and used parts to meet different needs .

Just Rotaries stands out for its commitment to quality, extensive selection of parts, competitive pricing, fast shipping, and excellent customer service. They are a leading supplier of replacement OEM used parts for Mazda rotaries in Australia, ensuring customers receive the highest quality parts that meet their strict standards.

Yes, Just Rotaries offers comprehensive rotary engine rebuild services, including basic rebuilds, engine porting (street, race, bridge, peripheral), lightening, balancing, and more. They rebuild all Mazda Rotary Engines, from 1st Gen 12A engines to RX-8 RENESIS engines, using quality parts for longevity that surpasses factory Mazda engines.

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