Main Stud/Bolt Kits: VW AHU & ALH TDI

This ARP main stud/nut kit works in (Mk3) AHU and (Mk4) ALH TDIs. Length is sufficient to hold a windage tray. Constructed from from 8740 chromemoly steel, they feature a 190,000 psi tensile-strength rating. -more than enough for all but the most stout builds. They are precision centerless-ground and thread-rolled to Mil-S-8879 specs with a black oxide finish for corrosion resistance. Hardened washers and high-strength hex nuts accompany the studs to make for a rock solid build foundation.

ARP TDI main studs nuts ALH AHU
See gas-spec main stud shown on the left with proper fitting hardware on the right.

ABA main stud in AHU TDI

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  • Model: arp_202-5401
  • Manufactured by: ARP

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