John Deere Original Equipment V-Belt #M138583. SECONDARY BELT Fits the following John Deere models: 2025R(-1LV2025RCHH100000), X300(42″M)(050001-), x304(42″M)(050001-), X310(42″M), X320(42″M), X324(-050001-), X340(42″M), X360(42″M). This is a OEM John Deere part.