Mtd Snowblower Chute, Lower 731-1300E 16.80 x 7.80 x 7.10 Genuine OEM. This is a Genuine OEM MTD part. This chute (part number 731-1300E) is for snowblowers. Chute 731-1300E funnels snow away from the snowblower. Wear work gloves to protect your hands when installing this part.... - Mtd Snowblower Chute, Lower 731-1300E 16.80 x 7.80 x 7.10 Genuine OEM.