Every part is inspected and comes with a warranty — terms are transparent and clearly defined for each category of parts.
The part was not installed, seals are intact.
From the day of receipt, by category.
Invoice and warranty card.
For engines and gearboxes it’s advisable to record the process.
Before starting.
A working radiator and pump.
Replace the belt/chain as scheduled.
Fitting by a qualified specialist, keeping the documents.