A Legacy of Trust, Backed by Marathon.
Your adventures deserve lasting confidence. Our warranty stands ready to back every launch, paddle, passage, and hunt.
Marathon Boats Warranty
When you choose a Grumman Canoe or DuraNautic Boat, you’re investing in proven durability and generations of craftsmanship. Our comprehensive warranty coverage protects your boat with the same confidence and strength that has made these brands trusted by sportsmen, families, and adventurers for decades. Backed by a tradition of rugged reliability, quality materials, and American-made construction, our warranty ensures peace of mind on every outing.

Grumman Lifetime Hull Warranty
The hull of the Grumman® canoe is warrantied against puncture for the life of the original customer.
Get the full warranty at the link below.


DuraNautic 10 Year Warranty
Ten (10) year Extended warranty on all DuraNautic aluminum boat hulls:
Welded main hull seams, which are side to bottom, transom to hull side, and transom to bottom seams are warranted against defects in material and workmanship for 10 years to the original purchaser.
Get the full warranty at the link below.

About Marathon Boat Group
We’ve been building reliable, aluminum watercraft for over 80 years in Marathon, NY. From iconic Grumman canoes to rugged DuraNautic fishing boats, everything we make is crafted to perform and built to last.