$99.99
until FREE shipping
042-5020-00 – 1/4 – 2 Square Key Stock
Key Features of Bad Boy Mower 042-5020-00 – 1/4 - 2 Square Key Stock
- OEM Quality Construction: Genuine Bad Boy square key stock built to factory specifications.
- 1/4 - 2 Inch Design: Ensures secure shaft and component connection.
- High-Strength Steel: Engineered for long-lasting durability.
- Corrosion Resistance: Built to withstand harsh mowing conditions.
- Precision Fitment: Compatible with Bad Boy Mower shaft systems.
- Versatile Use: Ideal for securing rotating components.
- Secure Engagement: Provides reliable torque transfer.
- Easy Installation: Engineered for quick and secure insertion.
- Reliable Performance: Maintains stability in rugged environments.
- See Models Used On below for more detail.
-
SKU:
042-5020-00
-
Weight:
0.40
$2.99
Usually ship in 1-3 days
Bad Boy Mower 042-5020-00 – 1/4 – 2 Square Key Stock
The Bad Boy Mower 042-5020-00 – 1/4 – 2 Square Key Stock is a genuine OEM replacement designed for reliable performance in Bad Boy Mower shaft systems. Built to exact factory standards, this 1/4 – 2 inch square key stock ensures secure component connection, durability, and consistent performance in demanding mowing conditions.
Engineered for use in Bad Boy Mower models with shaft systems, the 042-5020-00 is designed for securing rotating components, providing robust torque transfer for reliable operation. Its sturdy construction ensures consistent performance in rugged environments.
Constructed from high-strength steel with corrosion-resistant properties, this OEM key stock resists wear, impact, and environmental damage, ensuring long-term reliability. Its precision engineering guarantees a secure fit, maintaining system efficiency.
The Bad Boy OEM Square Key Stock meets Bad Boy’s rigorous quality standards, providing dependable performance and durability. Shop at BadBoyMowerParts.com for a full range of OEM mechanical components, with free shipping on orders over $100, ensuring factory-grade performance for your mower.
| Weight | 0.40 lbs |
|---|
Models Used On
(Click Link For Diagram)
2026
- Maverick HD - Engine - Kawasaki
- Rebel & Rebel X - Engine - Kawasaki EVO
- Rebel & Rebel X - Engine - Kawasaki FX1000
- Rebel & Rebel X - Engine - Kawasaki FX1000 EFI
- Rebel & Rebel X - Engine - Kawasaki FX850
- Renegade - Gas - Engine - Kohler ECH980
- Revolt (36" Deck) - Engine - Kawasaki FX691
- Revolt (48"-61" Decks) - Engine - Kawasaki EVO
- Revolt (48"-61" Decks) - Engine - Kawasaki FX730
- Revolt (48"-61" Decks) - Engine - Kawasaki FX850
- Revolt (48"-61" Decks) - Engine - Vanguard EFI
- Revolt X - Engine - Kawasaki EVO
- Revolt X - Engine - Kawasaki EVO Detail
- Revolt X - Engine - Kawasaki FX1000 EFI
- Rogue - Engine - Kawasaki FX1000
- Rogue - Engine - Kawasaki FX1000 EFI
- Rogue - Engine - Kohler ECV980
2025
- Maverick - Engine - Briggs CXI
- Maverick - Engine - Kawasaki FS730V
- Maverick - Engine - Kohler ZT740
- Maverick HD - Engine - Kawasaki FX691/FX730
- Maverick HD - Engine - Kohler ECV749 EFI
- Maverick HD - Engine - Vanguard EFI
- Rebel & Rebel X - Engine - Kawasaki EVO EFI
- Rebel & Rebel X - Engine - Kawasaki FX1000
- Rebel & Rebel X - Engine - Kawasaki FX1000 EFI
- Rebel & Rebel X - Engine - Kawasaki FX850
- Renegade - Gas - Engine - Kohler ECH980 EFI
- Revolt (36" Deck) - Engine - Kawasaki FX691
- Revolt (48"-61" Decks) - Engine - Kawasaki EVO781 EFI
- Revolt (48"-61" Decks) - Engine - Kawasaki FX730
- Revolt (48"-61" Decks) - Engine - Kawasaki FX850
- Revolt (48"-61" Decks) - Engine - Vanguard EFI
- Revolt X - Engine - Kawasaki FX1000 EFI
- Revolt X - Kawasaki EVO - Detail
- Rogue - Engine - Kawasaki FX1000
- Rogue - Engine - Kawasaki FX1000 EFI
- Rogue - Engine - Kohler ECV980 EFI
- ZT Elite - Engine - Briggs
- ZT Elite - Engine - Kawasaki
- ZT Elite - Engine - Kohler
2024
- Maverick - Engine - Briggs CXI
- Maverick - Engine - Kawasaki FS730V
- Maverick - Engine - Kohler ZT740
- Maverick HD - Engine - Kawasaki FX691/FX730
- Maverick HD - Engine - Kohler ECV749 EFI
- Maverick HD - Engine - Vanguard EFI
- Rebel & Rebel X - Engine - Kawasaki EVO781 EFI
- Rebel & Rebel X - Engine - Kawasaki FX1000
- Rebel & Rebel X - Engine - Kawasaki FX850
- Renegade - Gas - Engine - Kohler ECH980 EFI
- Revolt (36" Deck) - Engine - Kawasaki FX691
- Revolt (48"-61" Decks) - Engine - Kawasaki EVO781 EFI
- Revolt (48"-61" Decks) - Engine - Kawasaki FX730
- Revolt (48"-61" Decks) - Engine - Kawasaki FX850
- Revolt (48"-61" Decks) - Engine - Vanguard EFI
- Rogue - Engine - Kawasaki FX1000
- Rogue - Engine - Kawasaki FX1000 EFI
- Rogue - Engine - Kohler ECV980 EFI
- ZT Elite - Engine - Briggs CXI
- ZT Elite - Engine - Kawasaki FR730
- ZT Elite - Engine - Kohler KT740 & KT745
2023
- Maverick - Engine - Briggs CXI
- Maverick - Engine - Kawasaki FS730V
- Maverick - Engine - Kohler ZT740
- Maverick HD - Engine - Honda GXV700
- Maverick HD - Engine - Kawasaki FX691/FX730
- Maverick HD - Engine - Kohler ECV749 EFI
- Rebel - Engine - Kawasaki EVO820 EFI
- Rebel - Engine - Kawasaki FX1000
- Rebel - Engine - Kawasaki FX850
- Rebel - Engine - Kohler ECV749 EFI
- Renegade - Gas - Engine - Kohler ECH980 EFI
- Revolt - Engine - Kawasaki EVO781 EFI
- Revolt - Engine - Kawasaki FX691V
- Revolt - Engine - Kawasaki FX730V
- Revolt - Engine - Kawasaki FX850V
- Rogue - Engine - Kawasaki FX1000
- Rogue - Engine - Kawasaki FX1000 EFI
- Rogue - Engine - Kawasaki FX850
- Rogue - Engine - Kohler ECV980 EFI
- ZT Elite - Engine - Briggs CXI
- ZT Elite - Engine - Kawasaki FR730
- ZT Elite - Engine - Kohler KT740 & KT745P
- ZT Elite Limited - Engine - Briggs CXI
- ZT Elite Limited - Engine - Kohler ZT740
2022
- Maverick - Engine - Briggs CXI
- Maverick - Engine - Kawasaki FS730V
- Maverick - Engine - Kohler ZT740
- Maverick HD - Engine - Honda GXV700 EFI
- Maverick HD - Engine - Kawasaki FX691/FX730
- Maverick HD - Engine - Kohler CV742
- Rebel - Engine - Kawasaki FX1000
- Rebel - Engine - Kawasaki FX850
- Rebel - Engine - Kawasaki FX850 EFI
- Rebel - Engine - Kohler CV752
- Renegade - Gas - Engine - Vanguard EFI
- Revolt - Engine - Kawasaki FX691V
- Revolt - Engine - Kawasaki FX730V
- Revolt - Engine - Kawasaki FX850V
- Revolt - Engine - Vanguard EFI
- Rogue - Engine - Kawasaki FX1000
- Rogue - Engine - Kawasaki FX1000 EFI
- Rogue - Engine - Kawasaki FX850
- Rogue - Engine - Yamaha EFI
- ZT Elite - Engine - Briggs
- ZT Elite - Engine - Kawasaki
- ZT Elite - Engine - Kohler KT740 & KT745P
2021
- Compact Outlaw - Engine - Kawasaki FX691V
- Compact Outlaw - Engine - Vanguard
- Maverick - Engine - Honda GXV630
- Maverick - Engine - Kawasaki FS730V
- Maverick - Engine - Kohler ZT740
- Rebel - Engine - Kawasaki FX1000
- Rebel - Engine - Kawasaki FX850
- Rebel - Engine - Kohler CV752
- Rebel - Engine - Vanguard
- Rebel - Engine - Yamaha
- Renegade - Gas - Engine - Vanguard EFI & NON-EFI
- Revolt - Engine - Kawasaki FX691V
- Revolt - Engine - Kawasaki FX730V
- Revolt - Engine - Kawasaki FX850V
- Revolt - Engine - Vanguard EFI
- Rogue - Engine - Kawasaki FX1000
- Rogue - Engine - Kawasaki FX850
- Rogue - Engine - Kohler ECV880 EFI
- Rogue - Engine - Yamaha EFI
- ZT Elite - Engine - Kawasaki FR730
- ZT Elite - Engine - Kohler KT740 & KT745P
2020
- Compact Outlaw - Engine - Kawasaki FX691V
- Compact Outlaw - Engine - Vanguard 810
- Maverick - Engine - Honda GXV630
- Maverick - Engine - Kawasaki FS730V
- Maverick - Engine - Kohler ZT740
- Rebel - Engine - Kohler CV752
- Rebel - Engine - Kawasaki FX1000
- Rebel - Engine - Kawasaki FX850
- Rebel - Engine - Vanguard
- Rebel - Engine - Yamaha
- Renegade - Gas - Engine - Vanguard EFI & NON-EFI
- Revolt - Engine - Kawasaki FX691V
- Revolt - Engine - Kawasaki FX730V
- Revolt - Engine - Kawasaki FX850V
- Revolt - Engine - Vanguard EFI
- Rogue - Engine - Kawasaki FX1000
- Rogue - Engine - Kawasaki FX850
- Rogue - Engine - Kohler ECV880 EFI
- Rogue - Engine - Yamaha EFI
- ZT Elite - Engine - Kawasaki FR730V
- ZT Elite - Engine - Kohler KT740 & KT745
2019
- Compact Outlaw - Engine - Kawasaki FX691V
- Compact Outlaw - Engine - Vanguard 810
- Maverick - Engine - Honda GXV630
- Maverick - Engine - Kawasaki FS730V
- Maverick - Engine - Kohler ZT740
- Rebel - Engine - Vanguard
- Rebel - Engine - Kawasaki FX1000
- Rebel - Engine - Kawasaki FX850
- Rebel - Engine - Kohler CV752
- Renegade - Gas - Engine - Vanguard EFI
- Revolt - Engine - Kawasaki FX730V
- Rogue - Engine - Kawasaki FX1000
- Rogue - Engine - Kawasaki FX850
- Rogue - Engine - Kohler ECV880 EFI
- Rogue - Engine - Yamaha EFI
- ZT Elite - Engine - Kawasaki FR730V
- ZT Elite - Engine - Kohler KT740 & KT745
2018
- Compact Outlaw - Engine - Kawasaki FX691
- Compact Outlaw - Engine - Vanguard 810
- Maverick - Engine - Kawasaki FS730V
- Maverick - Engine - Kohler ZT740
- Outlaw & Outlaw Extreme - Engine - Kawasaki FX751
- Outlaw & Outlaw Extreme - Engine - Kawasaki FX850
- Outlaw & Outlaw Extreme - Engine - Kohler ZT740
- Outlaw & Outlaw Extreme - Engine - Yamaha 824
- Outlaw XP - Engine - Kawasaki FX850
- Outlaw XP - Engine - Yamaha EFI
- ZT Elite - Engine - Kawasaki FR730
- ZT Elite - Engine - Kohler KT740 & KT745
2017
- Compact Outlaw - Engine - Kawasaki FX691
- Compact Outlaw - Engine - Vanguard 810
- Maverick - Engine - Kawasaki FS730
- Maverick - Engine - Kohler ZT740
- Outlaw & Outlaw Extreme - Engine - Kawasaki FX730
- Outlaw & Outlaw Extreme - Engine - Kawasaki FX850
- Outlaw & Outlaw Extreme - Engine - Kohler ECV860 EFI
- Outlaw & Outlaw Extreme - Engine - Kohler ZT740
- Outlaw XP - Engine - Kawasaki FX850
- Outlaw XP - Engine - Yamaha EFI
- Stand-On - Engine - Kawasaki FX691/FX730
- ZT Elite - Engine - Kawasaki FR730
- ZT Elite - Engine - Kohler KT740 & KT745
2016
- Compact Outlaw - Engine - Kawasaki FX691
- Compact Outlaw - Engine - Vanguard 810
- Maverick - Engine - Kawasaki FS730
- Maverick - Engine - Kohler ZT740
- Outlaw & Outlaw Extreme - Engine - Kawasaki FX730
- Outlaw & Outlaw Extreme - Engine - Kawasaki FX850
- Outlaw & Outlaw Extreme - Engine - Kohler ECV860 EFI
- Outlaw & Outlaw Extreme - Engine - Kohler ZT740
- Outlaw XP - Engine - Kawasaki FX850
- Stand-On - Engine - Kawasaki FX691/FX730
- ZT Elite - Engine - Kawasaki FR730
- ZT Elite - Engine - Kohler KT740/KT745
2015
- CZT Elite - Engine - Kawasaki FS730
- CZT Elite - Engine - Kohler ZT740
- CZT Elite - Engine - Vanguard 810
- Outlaw & Outlaw Extreme - Engine - Kawasaki FX730
- Outlaw & Outlaw Extreme - Engine - Kawasaki FX850
- Outlaw & Outlaw Extreme - Engine - Kohler ECV860 EFI
- Outlaw & Outlaw Extreme - Engine - Kohler ZT740
- Outlaw XP - Engine - Kawasaki FX850
- Stand-On - Engine - Kawasaki FX730
- ZT Elite - Engine - Kawasaki FR730
- ZT Elite - Engine - Kohler KT740/KT745
2014
- CZT Elite - Engine - Briggs 810
- CZT Elite - Engine - Kawasaki FS730
- CZT Elite - Engine - Kohler ZT740
- Outlaw & Outlaw Extreme - Engine - Kawasaki FS730
- Outlaw & Outlaw Extreme - Engine - Kawasaki FX850
- Outlaw & Outlaw Extreme - Engine - Kohler 29HP EFI
- Outlaw & Outlaw Extreme - Engine - Kohler ZT740
- Outlaw XP - Engine - Kawasaki FX850
- Stand-On - Engine - Kawasaki FS730
- ZT Elite - Engine - Kawasaki FR730
- ZT Elite - Engine - Kohler KT740/KT745
2013
- CZT - Engine - Briggs Cyclonic 30HP
- Outlaw & Outlaw Extreme - Engine - Kawasaki FX850
- Outlaw & Outlaw Extreme - Engine - Kohler 29HP EFI
- Outlaw & Outlaw Extreme - Engine - Kohler 30HP
- Outlaw XP - Engine - Kawasaki FX850
- Stand-On - Engine - Kawasaki FS730
- ZT Elite - Engine - Briggs 27HP
- ZT Elite - Engine - Kohler 27HP
2012
- Outlaw & Outlaw Extreme - Engine - Kawasaki FX850
- Outlaw & Outlaw Extreme - Engine - Kohler 29HP EFI
- Outlaw & Outlaw Extreme - Engine - Kohler 30HP
- Outlaw XP - Engine - Kawasaki FX850
- Stand-On - Engine - Kawasaki FR651
- Stand-On - Engine - Kawasaki FS730
- ZT - Engine - Kohler 27HP
- ZT - Engine - Briggs 27HP