Truck Flywheels & Flexplates – Used OEM Clutch & Torque Converter Drive Plates
Used truck flywheels & flexplates for heavy-duty drivetrains
Flywheels and flexplates are critical transmission components on heavy trucks. A flywheel is a heavy steel disc bolted to the crankshaft on engines with a manual gearbox, providing a friction surface for the clutch and helping to smooth the engine’s power pulses. A flexplate is a thinner, pressed-steel drive plate used with automatic gearboxes to transfer torque to the torque converter. Both parts must match the engine, clutch or torque converter and starter ring gear exactly to work properly.
In this category we list used OEM truck flywheels and flexplates removed from complete donor vehicles. Stock focuses on modern European lorries from manufacturers such as MAN, DAF, Volvo and Mercedes-Benz, making it easier for workshops and fleets to find the correct replacement for their transmission and drivetrain repairs.
What you will find in the Flywheels & Flexplates category
Our Flywheels & Flexplates category typically includes:
- clutch flywheels for engines with manual gearboxes, complete with starter ring gear and mounting pattern for the clutch cover;
- two-mass and single-mass flywheels depending on the engine and application;
- flexplates (drive plates) for engines with automatic or automated transmissions, designed to bolt to the torque converter;
- ring gear flywheels for engines where the starter engages on the outer diameter of the flywheel;
- selected associated hardware such as flywheel bolts or spacers when they are supplied as part of a kit.
Each listing includes detailed photos, OEM part numbers where available and donor vehicle details, so you can compare bolt patterns, ring gear teeth and overall design with the part fitted to your truck.
Flywheels vs flexplates on heavy trucks
On trucks with a manual gearbox, the flywheel:
- provides the friction surface for the clutch disc and pressure plate;
- carries the starter ring gear and allows the starter motor to crank the engine;
- adds rotational inertia to smooth out engine torque fluctuations and improve drivability.
On trucks with an automatic or automated transmission, a flexplate:
- bolts to the crankshaft and connects to the torque converter;
- carries the starter ring gear in many designs;
- is designed to flex slightly to absorb movement between the engine and transmission, while transmitting torque into the drivetrain.
Because these components are engineered for specific engines, gearbox types, clutch sizes and ring gear tooth counts, choosing the correct OEM part is essential.
Typical reasons to replace a flywheel or flexplate
Common reasons to order parts from this category include:
- cracks or heat damage on the friction surface of a flywheel caused by clutch slip or overheating;
- excessive wear or scoring leading to clutch judder and poor engagement;
- damaged starter ring gear teeth that cause starting problems and noise;
- distorted or cracked flexplates that create vibration or torque converter engagement issues;
- replacing a non-original or incorrectly machined part with a genuine OEM flywheel or flexplate that matches the original specification.
How to choose the correct flywheel or flexplate
To minimise fitting issues and avoid repeated gearbox removal, please check the following before ordering:
- engine type and code – for example DAF MX-13, MAN D26, Volvo D13, Mercedes OM47x;
- gearbox type – manual, automated manual or full automatic with torque converter;
- clutch size and design – diameter and type of clutch cover and disc used on the vehicle;
- ring gear tooth count and position relative to the mounting holes;
- OEM part numbers stamped or cast into the original flywheel or flexplate, matched against the references shown in the product description;
- donor vehicle details such as brand, model, Euro emission class and year, to confirm compatibility with your truck.
If you are unsure, you can contact us with your VIN or registration number and clear photos of your existing flywheel or flexplate. Our team can help you cross-check compatibility before you place an order. For general guidance, see How to Find the Right Part and Compatibility & VIN Policy.
Used OEM flywheels & flexplates from dismantled trucks
VRA Truckparts specialises in used OEM truck parts sourced from carefully selected donor vehicles. During dismantling, our technicians remove flywheels and flexplates, inspect them for cracks, heavy heat damage and ring gear wear, and reject components that do not meet our standards. Usable parts are cleaned of loose dirt, labelled and stored under cover in our warehouse ready for dispatch.
Because these are genuine OEM components designed for heavy-duty applications, you benefit from correct fitment to the crankshaft and clutch or torque converter, proper balance and the durability expected from the original manufacturer. To learn more about our processes, please visit Our Dismantling & Quality Process, Warranty & Part Condition and Trucks We Dismantle.
Related transmission & drivetrain categories
If you are working on the clutch or gearbox of a truck, you may also want to browse:
- Clutch Parts – clutch covers, discs and release bearings that work directly with the flywheel;
- Gearboxes & Transmissions – manual, automated and automatic gearboxes for European trucks;
- Propshafts & Driveshafts – components connecting the gearbox to the drive axles;
- Complete Engines – donor engines that may be supplied with matching flywheel or flexplate assemblies.
Delivery, payment & returns
Most flywheels and flexplates are shipped as well-packed heavy parcels or on pallets with tracked delivery services across the UK and EU. For details of available services, transit times and costs, please see our Delivery & Shipping page.
Information about payment methods, VAT handling and returns is available on Payment & VAT and Returns & Refunds. If you need to combine flywheels or flexplates with other transmission or drivetrain components for the same vehicle, our team will be happy to help you build a complete order.