An aftermarket part is any part for a vehicle that is not sourced from the vehicle's maker. If the parts are direct replacement parts, they will not void your vehicle's warranty. A number of companies make parts designed to function the same, or in some cases even better than the original. 

There are several leading manufacturers of axles and transmissions as Dana/Spicer, Alison, Carraro, AxleTech, ZF, Clark, Volvo, NAF AG, Graziano (now it belongs to Dana) which supply products to OEM brands as Caterpillar, CASE NEW HOLLAND (CNH), Terex, MOXY, VOLVO, BOMAG, Hyundai, Doosan.
OEM John Deere AT414573 Planetary gear with bearing
In accordance to original parts book the number is  AT414573 Planetary Assembly fits John Deere backhoeloaders as 310SK, 310J, 315SK, 310K, 325J, 325K, 325SK, 410J, 310SJ, 410K, 315SJ 

This part is supplied by OEM John Deere in original box.

If we open the box and look at the part we can see the name of the manufacturer is different from the name on the box.

It is aftermarket part. Sometimes one part can be used on several OEM vehicles, and this part may have OEM part numbers.

We offer aftermarket parts for OEM brands with reasonable prices.