Engineered specifically for 2011 through 2026 Ford F-250, F-350, F-450, and F-550 Super Duty manual transmission trucks powered by the 6.7L Powerstroke V8 turbo diesel engine, the ARP Pro Series Flywheel Bolt Kit (Part # 150-2801) delivers professional-grade fastener reliability for the rear crankshaft-to-flywheel connection. In heavy-duty towing and performance manual-clutch configurations, high-torque shock loads and rapid clutch engagement subject factory flywheel bolts to extreme shear stress and cyclic fatigue.

Factory torque-to-yield flywheel bolts can stretch or fatigue over time, resulting in bolt backing-out, sheared fastener heads, and destruction of the crankshaft flange and clutch assembly. ARP manufactures the 150-2801 kit from premium 8740 chromoly forged steel, heat-treated in-house to a nominal 200,000 PSI tensile strength. Each bolt features an exclusive flat, low-profile 12-point head design that provides optimal clearance against clutch disc hubs and pressure plate assemblies, along with an increased shank diameter for improved flywheel register. Supplied as a complete set with zero core charge, these reusable fasteners ensure absolute driveline integrity under heavy commercial loads.

Key Features & Benefits

• 200,000 PSI Tensile Strength: Forged from premium aerospace-grade 8740 chromoly steel to substantially outperform factory torque-to-yield fasteners.
• Eliminates Flywheel Shear: Provides exceptional clamp load and shear resistance to prevent bolt fatigue and loosening under high diesel torque loads.
• Exclusive Flat 12-Point Head Design: Features a low-profile head engineered specifically for tight clearance tolerances around manual clutch assemblies.
• Roll-Threaded After Heat Treatment: Maximizes cyclic fatigue life and eliminates root stress risers for superior vibration resistance.
• Improved Shank Register: Larger-than-stock shank diameter aligns the flywheel perfectly with the crankshaft flange to eliminate runout.
• Zero Core Charge: Brand-new outright rotating assembly hardware requiring no core deposit or core return shipping.

Technical Specifications

• Manufacturer / Brand: Automotive Racing Products (ARP)
• Manufacturer Part Number / SKU: 150-2801
• Alternative Part Numbers: 1502801 / ARP150-2801
• Product Series: Pro Series Flywheel Bolts
• Fastener Material: Premium Forged 8740 Chromoly Steel
• Tensile Strength Rating: 200,000 PSI
• Fastener Head Style: Low-Profile Flat 12-Point Head
• Thread Size & Pitch: M12 x 1.5
• Underhead Length (UHL): 1.825 in.
• Package Quantity: Complete Set (Manual Transmission Application)
• Fastener Finish: Black Oxide Protective Coating
• Truck Platform: 2011–2026 Ford Super Duty (F-250, F-350, F-450, F-550)
• Engine / Transmission Platform: 6.7L Powerstroke V8 Diesel with Manual Transmission
• Core Requirement: None
• Warranty: ARP Limited Manufacturer Warranty

Vehicle Fitment & Technical Installation Notes

• 2011–2026 Ford F-250 Super Duty – 6.7L Powerstroke V8 Diesel (Manual Transmission)
• 2011–2026 Ford F-350 Super Duty – 6.7L Powerstroke V8 Diesel (Manual Transmission)
• 2011–2026 Ford F-450 Super Duty – 6.7L Powerstroke V8 Diesel (Manual Transmission)
• 2011–2026 Ford F-550 Super Duty – 6.7L Powerstroke V8 Diesel (Manual Transmission)
• Fits Model Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
• Transmission Application Note: Designed specifically for manual transmission flywheel installations. (For automatic transmission flexplate applications, use ARP SKU 150-2901).
• Installation Tip: Thoroughly clean the crankshaft rear flange and flywheel bolt holes to remove old thread-locker or debris. Apply medium-strength thread-locker or ARP assembly lubricant as indicated in the kit instructions. Torque all flywheel bolts in a criss-cross star pattern to factory or ARP torque specifications to ensure equal load distribution. Never reuse factory stretch bolts.