070-0055-00 PTO Clutch for Bad Boy MZ Magnum & ZT Avenger | Ogura Replacement

Overview

This aftermarket 070-0055-00 electric PTO clutch replacement fits select Bad Boy MZ, MZ Magnum, and ZT Avenger zero-turn mowers originally equipped with the 070-0055-00 clutch.

Built with a 1-inch crankshaft bore and 6-inch pulley, this complete clutch assembly includes a wiring harness and is designed to restore mower deck blade engagement when replacing a worn or failed clutch.

Fitment note: Match your original clutch number and compare the bore, pulley diameter, pulley offset, wiring connector, and anti-rotation mounting before ordering. Bad Boy used different clutch assemblies within the same mower series.

Key Features

• Aftermarket replacement for Bad Boy 070-0055-00
• Crankshaft Bore: 1" / 1.000"
• Pulley Diameter: 6"
• Belt Compatibility: 1/2" or 5/8" on supported applications
• Type: Electric PTO clutch assembly
• Wiring: Includes wiring harness; compare connector style with your original setup
• Assembled clutch and pulley unit for mower deck engagement

Compatible Bad Boy Applications

This clutch replaces 070-0055-00 on supported applications within these mower families:

• Bad Boy MZ / MZ Magnum: select 2017–2023 applications using 070-0055-00
• Bad Boy ZT Avenger: select 2020–2023 applications using 070-0055-00

Confirmed Factory Application Examples

• 2022 MZ / MZ Magnum: the factory parts manual lists 070-0055-00 in the Kawasaki FR651V engine assembly
• MZ Magnum 54 with Kawasaki FR651V: model BMZ54FR651, when the model-year parts diagram specifies 070-0055-00
• 2022 ZT Avenger: the factory parts manual lists 070-0055-00 in the Kohler KT740, Kawasaki FR691, and Briggs 25 hp CXi engine assemblies

Important: These are application references, not universal fitment by engine or mower name. Confirm the clutch number in the parts diagram for your mower’s model and production year.

Later-model note: On 2025 models, Bad Boy specifies checking whether the original clutch is Ogura or Warner. Some Warner-equipped MZ Rambler and MZ Magnum applications use 070-0057-00, while Warner-equipped ZT Avenger applications may use 070-0058-00. Match the original assembly before ordering.

Replaces OEM Part Numbers

• Bad Boy: 070-0055-00
• Alternate Number Format: 070005500

Original equipment reference: Bad Boy identifies 070-0055-00 as an Ogura PTO clutch assembly. This listing is for an aftermarket replacement, not a genuine Ogura or Bad Boy product.

What’s Included

• Complete electric PTO clutch assembly with pulley
• Wiring harness as shown in the product photos

Why Buy From PTO Direct USA?

• Fast USA shipping
• Fitment guarantee
• 1-year warranty
• Help matching your original clutch number and mower application
• Fitment support before and after purchase

FAQ

Does this replace Bad Boy 070-0055-00?

Yes. This aftermarket clutch replaces 070-0055-00, also written as 070005500, on compatible Bad Boy mower applications. Compare the original clutch number, pulley dimensions, connector, and mounting arrangement before ordering.

Does this fit a Bad Boy MZ Magnum 54 with a Kawasaki FR651V?

It fits supported applications using 070-0055-00, including the 2022 configuration shown in Bad Boy’s factory parts manual. Confirm your mower’s model-year parts diagram rather than ordering by deck size or engine alone.

Does this fit a Bad Boy ZT Avenger?

Yes, on supported ZT Avenger applications specifying 070-0055-00. Check the original clutch number, especially on later machines where Bad Boy used different clutch configurations.

What bore and pulley size does this replacement use?

This replacement uses a 1-inch crankshaft bore and a 6-inch pulley. Also compare pulley offset, belt alignment, and anti-rotation mounting with the original assembly.

Is 070-0055-00 the same part number as 070-0050-00?

No. These are separate Bad Boy clutch references. This listing is for 070-0055-00. If your original clutch or factory diagram specifies 070-0050-00, see our 070-0050-00 PTO clutch listing.

Can you help confirm fitment?

Yes. Email support@ptodirectusa.com with your mower model number, serial number, deck size, original clutch number, and clear photos of the clutch label, pulley, wiring connector, and anti-rotation mounting.

Installation: Follow the mower and clutch installation instructions for mounting-bolt torque, spacer placement, belt alignment, and wiring routing. Visit our PTO Clutch Installation Guide for additional guidance.

Looking for a Different Bad Boy PTO Clutch?

Match the part number on your original clutch to the appropriate listing:

• 070-0056-00 PTO Clutch — for select ZT Elite, Maverick, and Revolt SD applications
• 070-1000-00 PTO Clutch — for select Outlaw, Lightning, Pup, and CZT applications

Browse all Bad Boy PTO clutches or contact us for fitment support before ordering.