Diesel TW230DHB Parts (with 35 HP engine) Home / Timberwolf Diesel Chipper parts / Diesel TW230DHB Parts (with 35 HP engine) / P74 - Hitch Unit c/w Locking Head P74 - Hitch Unit c/w Locking Head P74 - Hitch Unit c/w Locking Head £475.00 Information P0000074 - Hitch Unit Complete assembly with Locking Head to suit the Timberwolf TW230 model Woodchippers