OptiTorque 10341P Cummins Late 6.7 (2012 +)12mm head stud kit – all one length


OptiTorque Cummins 5.9/6.7cr M12 Torque Master head stud kit. Fits blocks with all the same head bolt hole depths.

In stock (can be backordered)


OptiTorque Patriot series

If your power package is 700 hp or less we offer the Patriot series Opti10341P (ARP 2000 equivalent 15% less clamp load than a  Torqmaster head stud.), which will work on two length or single length blocks.

100% manufactured with pride in the USA. Crafted from vacuum
melted micro alloyed American manufactured HSLA steel, each
fastener is heat treated and undergoes a proprietary tempering process to achieve a fine grain structure prior to thread rolling. The coarse threaded (block) end of the fastener features a bottoming boss eliminating the purchase of special tools to “hold” the fastener during installation.
Equivalent ARP 2000.
These premium fasteners use ALL available factory block threads to distribute stress loads and are fully stress relieved prior to centerless grounding for maximum straightness.
The Patriot Series fasteners feature the greatest stretch area in their price class optimizing cycle fatigue properties.
Each fastener is hot temperature oiled and brilliant black oxide coated for protection.
The kit contains:
Forged high strength heat treated 12-point nuts and precision ground load distributing washers, ensuring a uniform clamp load, TrueTorq+ ® fastener assembly lubricant and installation procedures.
**Fastener lengths are engineered from O.E.M. production parts
and machine tolerances. Aftermarket or custom manufactured
parts may require fitment modifications or length alterations**

Additional information

Weight 14 lbs
Dimensions 9 × 10 × 3 in