Exhaust› Headers, Manifolds and Components
ARP
S/S Header Bolt Kit - 3/8 x 1.00 UHL (12)
SKU: A00M 400-1209
Easy — 1–2 hours
Description
Designed for durability and performance, the stainless steel construction offers high corrosion and heat resistance, while the 12-point head allows for a socket to fit into tight spaces near headers. ARP stainless steel bolts are noted to be 15 percent stronger than Grade 8 steel.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | ARP |
| Part Number | A00M 400-1209 |
Buy with Confidence
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.
View Full Return Policy