This SBC-FR3.5-390XP alternator is specifically designed, engineered, and manufactured for the Ford 3.5L Raptor gasoline engine. It is a direct bolt in replacement for the OEM alternator with no modifications required. The 3.5L Raptor engine began production in 2008 and can be found in several Ford. The SBC-FR3.5-390XP generates a maximum of 390 Amps at normal driving speeds and 220 Amps at idle. The OEM alternators for this engine produce a maximum of 110 to 220 Amps depending on the vehicle. By upgrading to the 390XP alternator you are gaining between 30 and 140 Amps.
The XP series of SBC alternators are manufactured in California, USA and assembled using DENSO components. This allows the XP alternator to tie into the OEM electrical system without any issues while producing significantly higher amperage at both idle and driving speeds. XP series alternators feature a larger housing while still retaining OEM fitment. They run cooler and are virtually indestructible.
A precision machined, hard anodized pulley made from Aircraft Certified 6061 aluminum is installed on each alternator for maximum output and durability.
This alternator comes with an unprecedented full two year warranty.
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