John Deere V-Belt R71603 fits the following models:

• 4040, 4240 and 4440 Tractors (North American Edition)
• 4040, 4240, 4440 Tractors (European Edition)
• 4040S, 4240S Tractors
• 6600 Combine
• 6602 Hillside Combine
• 6620 Combine
• 6622 Combine
• 8440 and 8640 Tractors
• 8450, 8650 Tractors (Worldwide Edition)
• 4000 and 4020 (s.n. 201,000- ) Tractors