The link to the non-Arnott boxed compressor was not an AMK brand. The AMK pump will have AMK cast on the side (and it has AMK stickers). That one also only has 2 year warranty where Arnott's AMK pump is protected by a Limited Lifetime Warranty.

Arnott's air suspension compressor P-2872 for the BMW X5 (E70 Chassis) and X6 (E71) is a 100% direct replacement for the original OE compressor from BMW. This BMW replacement compressor is new and is produced by AMK, the same manufacturer as the original compressor. The compressor comes complete with a mounting bracket, valve block, and intake air hose for a fast plug and play installation. The AMK BMW X5 and X6 compressor is a powerful, extremely compact, and lightweight compressor backed by Arnott's Limited Lifetime Warranty.

Features:

• Powerful and Reliable
• Compact, Lightweight Design
• Minimum Noise and Vibration
• Integrated Air Dryer
• Made in Germany
• Limited Lifetime Warranty

For more information on Arnott's AMK compressor: AMK OES AIR SUSPENSION COMPRESSOR - BMW X5 (E70), X6 (E71)