Engineered specifically for 2011 through 2026 Ford F-250, F-350, F-450, and F-550 Super Duty trucks powered by the 6.7L Powerstroke V8 turbo diesel engine, the ARP Pro Series Flexplate Bolt Kit (Part # 150-2901) provides extreme fastener reliability for the rear crankshaft-to-flexplate connection. In modified diesel applications running aggressive tuning, high low-end torque curves, and heavy towing profiles, torsional crankshaft impulses and sudden load changes subject factory flexplate bolts to severe cyclic shear stress.

Factory torque-to-yield flexplate bolts can stretch or fatigue over time, leading to bolt loosening, sheared fastener heads, and catastrophic damage to the crankshaft flange, flexplate, and transmission torque converter. ARP manufactures the 150-2901 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, compact 12-point head design that provides maximum socket clearance against torque converter mounting rings, accompanied by a robust shank diameter for superior shear resistance. Supplied as a complete set with zero core charge, these reusable fasteners ensure absolute driveline security.

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 Flexplate Shear: Provides exceptional clamp load and shear resistance to prevent bolt fatigue and backing-out under high-torque diesel loads.
• Exclusive Flat 12-Point Head Design: Features a low-profile head engineered specifically for tight clearance tolerances around automatic transmission torque converter mounting surfaces.
• Roll-Threaded After Heat Treatment: Maximizes cyclic fatigue life and eliminates stress risers in the thread roots for superior vibration resistance.
• Reusable High-Performance Hardware: Unlike single-use factory stretch bolts, ARP chromoly fasteners can be safely reinstalled during future maintenance or transmission service.
• Zero Core Charge: Brand-new outright rotating assembly hardware requiring no core deposit, no core return shipping, and no core inspection delays.

Technical Specifications

• Manufacturer / Brand: Automotive Racing Products (ARP)
• Manufacturer Part Number / SKU: 150-2901
• Alternative Part Numbers: 1502901 / ARP150-2901
• UPC / GTIN: 0672036044763
• Product Series: Pro Series Flexplate 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: M10 x 1.0
• Package Quantity: Complete Set (Standard Engine Set)
• Fastener Finish: Black Oxide Protective Coating
• Truck Platform: 2011–2026 Ford Super Duty (F-250, F-350, F-450, F-550)
• Engine Platform: 6.7L Powerstroke V8 Turbo Diesel (Gen 1, Gen 2, and Gen 3 Platforms)
• Core Requirement: None
• Warranty: ARP Limited Manufacturer Warranty

Vehicle Fitment & Technical Installation Notes

• 2011–2026 Ford F-250 Super Duty – 6.7L Powerstroke V8 Turbo Diesel
• 2011–2026 Ford F-350 Super Duty – 6.7L Powerstroke V8 Turbo Diesel
• 2011–2026 Ford F-450 Super Duty – 6.7L Powerstroke V8 Turbo Diesel
• 2011–2026 Ford F-550 Super Duty – 6.7L Powerstroke V8 Turbo Diesel
• Fits Model Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
• Crank Flange Preparation Tip: Clean the crankshaft rear flange bolt holes and flexplate mounting surfaces thoroughly of any old thread-locker, oil, or debris.
• Installation Tip: Apply medium-strength (blue) thread-locker or ARP fastener assembly lubricant as specified in the kit instructions to the bolt threads. Torque all flexplate bolts in a criss-cross star pattern to factory torque specifications to ensure uniform clamping pressure. Never reuse factory torque-to-yield flexplate bolts.