ATI ARP Crank Bolt – LS / L-Series Aluminum Wet Sump & 2014+ LT1 / LT4 Wet Sump

Secure your ATI Super Damper or balancer to your LS, L-Series, or Gen V LT engine with the ATI ARP Crank Bolt. Manufactured by ARP and supplied by ATI, this high-strength crank bolt is engineered specifically for LS and L-Series aluminum wet sump engines as well as 2014+ LT1 and LT4 wet sump applications — providing the clamping force and fatigue resistance required to keep your damper securely retained under high-RPM and high-load conditions.

A critical fastener for any LS or LT build running an ATI Super Damper or aftermarket balancer — do not reuse the factory crank bolt.

Key Features

• ARP Manufacturing: Produced by ARP — the industry standard for high-performance engine fasteners — for superior strength and fatigue resistance over the OEM crank bolt
• LS / L-Series Aluminum Wet Sump Fitment: Correct specification for LS and L-Series engines with aluminum wet sump oil pans
• 2014+ LT1 / LT4 Wet Sump Fitment: Also fits Gen V LT1 and LT4 engines in wet sump configuration
• ATI Supplied: Sourced and supplied by ATI Performance Products for use with ATI Super Dampers and compatible balancers
• High-Strength Construction: Engineered to maintain proper clamping load on the damper/balancer under sustained high-RPM operation

Specifications

• Manufacturer: ARP (supplied by ATI)
• Application: LS / L-Series Aluminum Wet Sump; 2014+ LT1 / LT4 Wet Sump
• Part Number: ATI951503

Fitment

• GM LS / L-Series engines — aluminum wet sump configuration
• 2014+ GM LT1 / LT4 — wet sump configuration

Note: Always replace the crank bolt when installing or removing a damper or balancer — do not reuse the factory crank bolt. Follow ATI’s specified torque procedure and use appropriate thread preparation. Professional engine assembly recommended.