Diesel TW230DHB Parts (with 35 HP engine) Home / Timberwolf Diesel Chipper parts / Diesel TW230DHB Parts (with 35 HP engine) / 411MS - Roller , Belt Tension 411MS - Roller , Belt Tension 411MS - Roller , Belt Tension £42.44 Information 411MS - Rotor Belt Pulley Tension for the the Timberwolf TW 125PH, TW150 DHB, TW150VTR and TW 230 DHB Wood Chippers. Related Products BRK - Belt Roller Tensioner Kit £85.00 WA415 - Heavy Washer Belt Roller £5.62 BE491 - Bearing 6205 £7.78 0472MCB - Belt Tensioner Boss £29.43