Introducing the HEBEOT V-Idler Pulley 420613, meticulously designed for seamless replacements in your Murray Mower's 20613 91178 Flat Idler Pulley. This metal tensioner, featuring a robust 4-inch outer diameter and half-inch inner diameter, is an ideal match for Ride On Tractor Mowers. This pulley ensures optimal tensioning, reducing the risk of stringing and knots in mower cables, thereby extending the lifespan of your mower and cables. With its V-shaped design, the HEBEOT V-Idler Pulley 420613 offers superior traction and engagement, eliminating the need for constant adjustments to cable tension. Its compatibility with various mower models and tensioners makes it an efficient and versatile solution for maintaining and upgrading your Ride On Tractor Mower's performance. Elevate your mower maintenance experience with the HEBEOT V-Idler Pulley 420613, the perfect choice for a hassle-free and reliable mowing experience.