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Engines and Components› Cylinder Heads and Components
ARP
Header Bolt Kit - 12pt. 3/8 x .750 UHL (12)
SKU: A00M 100-1207
Easy — 1–2 hours
Overview
ARP manufactures these header bolt kits to facilitate header installation. They are rated at 170,000 psi, making them stronger than stock, and are designed to last under severe conditions. Each kit includes the necessary parts for the application, along with premium-quality washers and 12-point heads.
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Part #: 100-1207
Header Bolt - 3/8-16 in Thread - 0.750 in Long - 12 Point Head - Chromoly - Black Oxide - Universal - Set of 12
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | ARP |
| Part Number | A00M 100-1207 |
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Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
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