MPerformance.parts does our best to accurately describe every advertised engine, transmission, differential and related component. Used automotive parts may show normal wear, cosmetic marks or minor imperfections. Customers must review the listing photos, description and fitment details before ordering.
It is the purchaser’s responsibility to confirm the item is correct for the vehicle and intended use. If you are unsure, contact us with your VIN, part number, photos and vehicle details before purchase.
30-Day Start-Up Warranty
Eligible engines, transmissions and differentials purchased from MPerformance.parts include a 30-day start-up warranty from the date the goods are received, unless otherwise stated in writing.
The part must be installed within the warranty period by a suitably qualified mechanic with relevant experience. MPerformance.parts may request the mechanic’s certification, contact details, installation invoice, diagnostic notes, photos, video evidence and a written defect report before assessing a claim.
First Start and Inspection Requirements
For engine and transmission claims, customers may be required to provide a clear first-start video, diagnostic report and evidence that correct installation procedures, fluids, filters, coding, programming and adaptation steps were followed.
Problems must be reported to MPerformance.parts before repairs, teardown or third-party work is carried out. Repairs performed without prior written authorisation may affect warranty assessment.
What the Warranty Covers
Where a covered internal defect is confirmed, MPerformance.parts will, at its discretion and in accordance with Australian Consumer Law, repair, replace or otherwise provide an appropriate remedy for the defective engine block, cylinder head, transmission, differential or covered internal component.
What the Warranty Does Not Cover
The warranty does not cover external accessories or bolt-on components, including but not limited to manifolds, turbos, superchargers, alternators, starters, pumps, sensors, solenoids, wiring, torque converters, clutches, flywheels, flex plates, valve covers, oil pans, fuel system components, belts, hoses, timing components, air-conditioning parts or power steering components unless specifically stated in writing.
The warranty also does not cover damage caused by incorrect installation, overheating, oil starvation, blocked radiators, incorrect fluids, poor water circulation, faulty ancillary components, tuning, aftermarket ECU use, boost controllers, nitrous oxide, racing or motorsport use, misuse, neglect, accident damage, unauthorised repairs or use outside the part’s intended purpose.
Return and Claim Process
All warranty and defective-item claims must be submitted by email to sales@mperformance.parts before the item is returned. Items sent back without prior approval and a return authorisation may not be accepted.
Returned engines, transmissions and differentials will be inspected, including serial-number checks and condition checks against dispatch records. The customer is responsible for safe return packaging and return freight unless MPerformance.parts agrees otherwise in writing or a remedy is required under Australian Consumer Law.
Core Exchange Terms (Engines)
Some engines are supplied on a core exchange basis. Where a core exchange refund or credit is offered, it depends on the core coming back to us within the timeframes below, and on the core being complete and able to be assessed.
- Within 30 days: the core engine must be returned to and received by MPerformance.parts within 30 days of the date you receive the replacement engine. This is the time limit that applies to any agreed core exchange refund. Cores received after 30 days do not comply with this policy.
- Just outside 30 days: a core received after the 30 day window may still be accepted as a goodwill gesture at our discretion. Anything accepted on that basis can be subject to an adjustment, and a goodwill acceptance does not guarantee the full core refund.
- 60 days or more: a core received 60 days or more after you receive the replacement engine may be refused entirely, with no refund or credit payable.
- 90 days or more, or incomplete: a core received 90 days or more after you receive the replacement engine, or returned with missing components, is accepted only at our discretion. In most cases we will assess the core when it arrives and determine what, if anything, we are prepared to pay for it.
Core assessment is based on the engine being the correct unit for the exchange, complete, and in the condition described when the exchange was agreed. Where a core is refused, the customer is responsible for collection or return freight of the core.
Nothing in this section limits your rights under the Australian Consumer Law.
Body, Interior, Wheels and Suspension Parts
Used body parts, interior parts, wheels and suspension components are sold based on their listed condition and photos. These parts are not covered by the engine/transmission start-up warranty and cannot be returned once installed, painted, modified or damaged during installation.
Custom and Special Orders
Custom orders, special-order items, VIN-specific components, electronics, modules, airbags, seatbelts and non-stock items are subject to the MPerformance.parts Refund Policy and may be non-returnable for change of mind, incorrect ordering, delayed installation or compatibility issues caused by incorrect customer-supplied information.
Australian Consumer Law
Nothing in this policy excludes, restricts or modifies any rights or remedies you may have under the Australian Consumer Law.