Arbour coached 1,500 regular-season games over 19 seasons with the Islanders after he was hired at the start of the 1973-74 season. He retired after the 1994 playoffs, but returned in 2007 at the age of 75 to coach one more game for the team -- a 3-2 victory against the Pittsburgh Penguins.
"Al will always be remembered as one of, if not, the greatest coaches ever to stand behind a bench in the history of the National Hockey League," Islanders president and general manager Garth Snow said in a statement released Friday by the team. "The New York Islanders franchise has four Stanley Cups to its name, thanks in large part to Al's incredible efforts.
"From his innovative coaching methods, to his humble way of life away from the game, Al is one of the reasons the New York Islanders are a historic franchise. On behalf of the entire organization, we send our deepest condolences to the entire Arbour family."
Arbour won 119 career playoff games -- an NHL record for a coach with one club -- over 15 postseason appearances and hoisted the Stanley Cup each season from 1980 to 1983. He finished his coaching career with 740 victories and was elected to the NHL Hall of Fame in 1996.