www.badboylawnmowerparts.com Toggle search bar MY CART ( ) Mower Parts Mower Parts and Accessories by Model Parts Look-Up (old V) Fast Moving Parts Shop By Part 2006 & Earlier Mowers Parts List Accessories ADJUSTABLE STEERING ARM ADVANCE CHUTE SYSTEM Bad Boy Baggers BUMPER GUARDS CARGO RACKS DECK LIFT FRONT DISC BRAKES LIGHT KITS MOUNT ASSIST HANDLE MOWER COVERS MOWER LIFTS MULCH KITS PULL BEHINDS RIMS, TIRES & NO FLATS ROLL OVER PROTECTION SIDE BAGGERS SNOW PLOWS SOUND BARS SPOILERS SPRAYERS STRIPING KITS SUN SHADES SUSPENSION SEATS TOOL BOXES TRAILER HITCHES TRASH BUCKETS TRIMMER GRIP ASSEMBLY Apparel BAD BOY BANNERS & SIGNS BAD BOY GEAR BAD BOY HATS BAD BOY SHIRTS BAD BOY STICKERS Advanced Chute System Advanced Chute System Parts Advanced Chute System Info. Advanced Chute System Installation Advanced Chute System Fitment Chart UTV/SxS Parts Bad Boy MTV Parts Bad Boy UTV Bandits Parts & Accessories Mowers Blades 21" BLADES 34" BLADES 36" BLADES 42" BLADES 48" BLADES 50" BLADES 52" BLADES 54" BLADES 60" BLADES 61" BLADES 72" BLADES Mowers Belts Mowers Engines Briggs and Vanguard Engines Diesel Engines Honda Engines Kawasaki Engines Kohler Engines Yamaha Engines Tractors and Implements Parts Bad Boy Implement Parts Bad Boy Tractor Parts Videos Gas & Electric Tools Parts Electric Tools Parts Gas Tools Parts Manuals Bad Boy Manuals (E-File) MOWER MANUALS ENGINE MANUALS Search... Search Submit SELECT A CATEGORY CLOSE MENU Nav Menu 2 Nav Menu 3 Nav Menu 4 Nav Menu 5 Nav Menu 6 Nav Menu 7 Tools Home > Spindles > 037-4000-00 - Bad Boy Mowers 2017 - 2026 Outlaw/XP/Diesel Cast Iron Spindle 037400000 Bad Boy Part #037-4000-00 / #037400000 Alternative Views: Product Info:Bad Boy Part #037-4000-00Genuine SKU: #037-4000-00 / OEM MPN: #037-4000-00, #037400000Part Description: 2017 - 2026 Outlaw/XP/Diesel Cast Iron Spindle for Bad Boy Mowers List Price: $315.99 Our Price: $291.99 Savings: $24.00 Product Code: 037-4000-00 Qty: Description Genuine OEM Bad Boy Mowers Cast Iron Spindle – Part #037-4000-00 Restore cutting performance and deck reliability with this genuine OEM Bad Boy Mowers cast iron spindle designed for 2017 - 2026 Outlaw, XP, and Diesel zero-turn mower decks. This heavy-duty spindle assembly is engineered for maximum strength, durability, and long-term performance under demanding commercial mowing conditions. Built with cast iron construction, it provides superior resistance to heat, wear, and impact compared to standard aluminum spindle designs. Compatible Models Bad Boy Outlaw (2017 - 2026 models) Bad Boy Outlaw XP Bad Boy Outlaw Diesel Part Numbers 037-4000-00 037400000 Features Genuine OEM Bad Boy Mowers Spindle Heavy-Duty Cast Iron Construction Designed for High-Stress Cutting Conditions Improves Deck Stability & Blade Performance Precision Factory Fitment Enhanced Durability vs Standard Spindles Long Service Life in Commercial Use Direct Replacement Installation Why Buy From Us? Fast Professional Shipping OEM Factory Parts Secure Packaging Responsive Customer Support037-4000-00 - Bad Boy Mowers 2017 - 2026 Outlaw/XP/Diesel Cast Iron Spindle - Bad Boy Mowers Part. We have the Bad Boy Part you need. We are here to help with all the Bad Boy Parts to keep your Bad Boy Mower going so you can continue to Mow with an Attitude! Related Items 037-8001-00 - Bad Boy Mowers Double Bearing for Spindle 037800100 037-9050-00 - Bad Boy Mowers Collar Spacer - Top of Spindle 037905000 037-0010-00 - Bad Boy Mowers Front Suspension Fork Spindle Shaft - Black 037001000 037-6028-00 - Bad Boy Mowers MZ Spindle Spacer-Component 037602800 Our Price: $43.99 Our Price: $6.99 Our Price: $39.99 Our Price: $13.99 037-0001-00 - Bad Boy Mowers Fork Spindle (weld on) 037000100 037-6025-00 - Bad Boy Mowers mz spindle shaft 037602500 037-6000-00 - Bad Boy Mowers Shaft, Spindle, Old Style used on 037-6001-00 037600000 037-2002-00 - Bad Boy Mowers Revolt 36" Spindle 037200200 Our Price: $26.99 Our Price: $56.99 Our Price: $53.99 Our Price: $212.99 Share your knowledge of this product. Be the first to write a review »