Boeing and GE Capital Aviation Services announced an order for 75 737 MAX 8 aircraft. The order, booked in December, has an approximate value of $8.25 billion at list prices. The follow-on order increases the GECAS firm order book for the 737 MAX to 170 airplanes, the largest of any aircraft leasing company.

“These new orders will enable GECAS to serve our clients’ needs — assisting in managing their fleets, transitioning aircraft and providing new equipment,” said Alec Burger, president and CEO of GECAS. “Our customers want the latest technology and fuel efficiency, and the CFM International LEAP-1B engines on these aircraft deliver outstanding productivity and reliability in the single-aisle market.”

“When it comes to demand, this order shows the MAX 8 remains at the heart of the single-aisle market,” said Brad McMullen, vice president of North America and Leasing Sales, Boeing Commercial Airplanes. “We appreciate the confidence GECAS has in the 737 MAX, and look forward to seeing the airplanes placed with carriers all over the world.”

To date, customers have ordered 3,419 MAXs, making it the fastest-selling airplane in Boeing’s history.