Fits: RZT-L46, RZT-L50, RZT-L54, RZT-LX46, RZT-LX50, RZT-LX54, RZT-S46, RZT-S50, RZT-S54, RZT-SX46, RZT-SX50, RZT-SX54 Fits: Z6400 Z6600 Z6900 ZS6700 T3200 T8200 T8400 T8600 G8200 G8300 G8400 G8600 TB2350 TB2454, 247.270560, 17AAFACQ066 Mustang Z46 Z50, 17AAFACT066, 17ADCACN066 Mustang XP 46 50 54 XP46 XP50 XP54, 17ADCACT066, 17AKCACT099 247.204280, 17AKCACZ066, 17AKFACW066 Mustang Z54, 17ANCACZ066, 17ARCACA099 247.277750, 17ARCACQ011, 17ARCACQ211, 17ARCACW011, 17ARCACW099 247.204191, 17ARCACW309, 17ARCBDQ099 247.204100, 17ARCBDT011 Mustang Pivot S 46 S46, 17ARCBDT011 Mustang XP Pivot S 46 S46 131QA1ZT099 247.204390, 132QA1ZT099 247.270390, 13A7A1ZW099 247.204440, 13AAA1BQ066 Super Bronco 50 54 Hydro, 13AAA1KQ066, 13AAA1ZW099 247.273340, 13AAA2BW066, 13AAA2KW066, 13AAA2KW266, 13AJA1BN066 Super Bronco 46 50 54 XP 46XP 50XP 54XP, 13AJA1BQ066, 13AJA1BZ066, 13AJA2BW066, 13APA1BN066, 13APA1BNA66, 13AQA1BL066, 13AQA1BLA66, 13AQA1BQ011, 13AQA1BQA66, 13AQA1ZT099 247.204420, 13AQA1ZT299 247.202420, 13AQA2BA011, 13AQA2BW011, 13AQA2BW066, 13AQA2BWA66, 13AQA2KA011, 13AQA2KA066, 13AQA2KW011 13B7A1ZW099 247.270440, 13B7A1ZW099 247.270441, 13BJA1BZ066, 13BQA1ZT099 247.270420, 13BQA1ZT099 247.270421, 13BQA1ZT299 247.270490, 13BQA1ZT299 247.270491, 13WQA2KQ011, 13WQA2KW011, 1417A3ZW099 247.204470, 1427A3ZW099 247.270470, 14A7A3BA011 Super Bronco 54 GT, 14A7A3BA066, 14A7A3KA011, 14A7A3KA066, 14A7A3ZQ099 247.204430, 14A7A3ZW099 247.204450, 14A7A5BA011, 14A7A5KA011, 14A7A5ZQ099 247.270480, 14B7A3ZQ099 247.270460, 14B7A3ZW099 247.270550, 14B7A3ZW099 247.270551, 14B7A3ZW299 High Torque Coil: This OEM Upgrade has 130ftlbs of Torque. Higher Torque Means this Clutch holds Strong Even in the Toughest Cuts and Prevents Overheating caused by slippage. BIGBearing: The Pulley Bearing Takes a lot of abuse and is often the first thing to fail. We use a Larger Pulley Bearing for a much longer life. We also designed our Billet Pulley with a snapring making the bearing replaceable. HD Clutches are designed at HD Clutch and Assembled in the USA. Higher Torque: 130 ft-lbs (OEM is 105 ft-lbs). We add a few more windings to our coils to provide the maximum gripping strength to prevent damaging micro-slipping during tough cutting conditions. The HD Switch BIGBearing design addresses the #1 reason clutches fail with a larger tougher pulley bearing. Machined Billet Pulleys: It is easy to damage formed pulley and damage (even a small stone nick) damages the belt with every rotation. With our Billet Pulley design, we include a snap ring so the bearing is replaceable, making this clutch rebuildable. Clutches all run very hot; we use a composite material instead of plastic to allow the heat to dissipate much faster. This makes the HD Clutch run much cooler; extending the bearing and clutch life. HD Clutch wrote the Bearing specifications to include Premium C3 Rated Bearings and high temperature rated synthetic grease to combat heat. Less Heat = Extended Life.