ARP 100-9909 Ultra Torque Assembly Lubricant
Updated June 8, 2026
ARP 100-9909 Ultra Torque Assembly Lubricant is a premium moly-based fastener lubricant designed for high-performance engine assembly. It ensures consistent and repeatable torque readings by minimizing tension pre-load scatter, which occurs when using oils or other lubricants. This 1.69 oz squeeze tube lubricant is formulated to be used on all engine fasteners, including bolts and studs, to achieve proper preload without requiring multiple torque cycles.
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How It Works
Ultra-Torque lubricant reduces frictional inconsistencies that cause tension pre-load scatter. By providing a stable coefficient of friction, it allows the installer to achieve the required bolt stretch or preload in a single torque application, eliminating the need to cycle fasteners multiple times. The moly-based formula also prevents rust and corrosion during the life of the lubricant.
Key Features
This assembly lubricant is specifically designed for high-performance engine fasteners. It offers consistent clamping force, reduces the risk of under- or over-torquing, and is compatible with ARP and other quality bolts. The squeeze tube packaging allows easy, precise application directly onto threads and under bolt heads.
Application Notes
Apply Ultra-Torque liberally to threads and under the bolt head before installation. For best results, use on all critical engine fasteners such as connecting rod bolts, main cap bolts, cylinder head bolts, and studs. It is suitable for both steel and aluminum components. No additional lubricant or anti-seize compound is needed. Torque to manufacturer specifications in one smooth, continuous motion.



