The Optitorque Mopar 426 Hemi Header Stud Kit provides 16 stainless steel header studs for Mopar 426 Hemi engines. Each stud features an 8mm x 1.25 thread and comes with 12-point nuts. Header studs simplify header installation and removal while preventing stripped threads in the cylinder head.

![SI-TEX Temperature Probe f/SST-110 TM [TM200-30]](https://www.marinerailparts.com/wp-content/uploads/2026/10/si-tex-temperature-probe-f-sst-110-tm-tm200-30.webp)






