Holley HLY12-842 HP Billet Fuel Press. Regulator w/Bypass

Holley HLY12-842 HP Billet Fuel Press. Regulator w/Bypass is listed by Motorstate as a Fuel Pressure Regulators for catalog matching by brand, part number, and product name. Use this source-backed listing when comparing Holley components in the Fuel Pressure Regulators category. The manufacturer part reference is 12-842, while the Motorstate part number is HLY12-842. Catalog description context: Fuel Pressure Regulator - HP Billet - 4.5 to 9 psi - In-Line - 3/8 in NPT Inlet - 3/8 in NPT Outlet - 1/8 in NPT Port - Bypass - Aluminum - Natural / Black Anodized - Diesel / E85 / Gas - Each. No vehicle compatibility is stated here unless it is present in separate fitment data.