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COMP Cams 4589-1 Gen III Hemi Rocker Arm Stud M8x1.25 67mm Single

Manufacturer

Picture for manufacturer COMP Cams

Part Number

4589-1
6 reviews
Sale Price

$14.95

3 left at this price

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The COMP Cams 4589-1 is a replacement rocker arm stud designed specifically for Gen III Hemi engines. Sold as a single unit, this stud-and-nut set provides the precise fitment and durability required for high-performance and stock valvetrain assemblies.

Key Specifications:

  • Stud Thread: M8 x 1.25
  • Base Thread: M8 x 1.25
  • Effective Stud Length: 67mm (approximately 2.638 inches)
  • Includes: One (1) stud and one (1) nut
  • Application: Gen III Hemi cylinder heads

Engineered to COMP Cams' exacting tolerances, this rocker stud maintains proper rocker arm geometry and ensures consistent valve actuation under demanding operating conditions. It is an ideal replacement or upgrade stud for those servicing or building a Gen III Hemi valvetrain with COMP Cams rocker arms.

The website was easy to navigate. I found the product easy peasy. Placed order and my order was delivered within days not weeks. I would order again from them if I ever need shocks again.

Super grateful you had the part. I searched other location and nobody had it in stock. You saved my bacon after the freezing temps. Will definitely shop here again and very fast delivery!

This company is super fast to get you your order! I ordered online and figured it would be at least a couple days or so until my order would even get processed. I think they overnighted it to me! The package showed up undamaged and sealed. Unfortunately, I may have to return the product as I am thinking I would like the spikes shorter but that is no fault of Thmotorsports. Hopefully their customer service is as superior as their ordering and shipping. At this point I would definitely shop there again and recommend them.

Quick delivery

Online ordering was easy, the prices are good, and fast delivery. Over all it was a pleasure doing business with them.

Quick and easy, found what I wanted and all the information was readily available, easy checkout process too!

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Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy