The fruit is regarded as superior to both jackfruit and chempedak. The fruit is round to oblong, about 170mm in length, and the thick rind is covered with soft, short spines. These become rigid and brittle when fruit is mature. The fruit does not fall when ripe. It may be harvested mature but hard, and left to soft ripen.
Marang turns green-yellow when ripe.
Ripe fruit is opened by cutting the rind around the fruit. Twisting and gently pulling the halves leaves the fruit's flesh separated. The internal structure is similar to the jackfruit's. Arils are white and the size of a grape, each containing a 12mm long seed. Once opened, the marang should be consumed within a few hours, as it loses flavour quickly and fruit darkens.