GE Capital Aviation Services (GECAS) has confirmed a 2013 order for 40 737s split evenly between the MAX and 737-800 versions.

Carrying a list-price value of $3.9 billion, the order increases the GECAS commitment for the 737 MAX to 95 and the current production 737 family to 387, making it the most for both models by any leasing company.

GECAS has now ordered 638 aircraft directly from Boeing, of which 459 have been delivered. The various models in the GECAS portfolio include 737s, 747s, 757s, 767s, 777s and 787s and with the latest order now include the 737-8 version of the MAX family.

Boeing says confirmation of the leasing company order, previously listed as unidentified, also means that to date 32 customers have ordered 1,763 MAX aircraft. Together with firm orders, options and other commitments, the overall 737 MAX order list now stands at 2,800.

In 2011 GECAS also ordered 60 of the competing Airbus A320neos in a deal valued at $5.1 billion.