High Output Alternator for Saturn Vue (2008-2010) 2.4L
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High-Amp Charging Output Alternator for 2008-2010 Saturn Vue (Theta Platform)
What it Does: The 250-Amp high-output alternator replaces the low-output factory charging unit on the 2008-2010 Saturn Vue to eliminate system voltage drop and reliably support high-draw electrical accessories.
The Stock Saturn Vue Alternator Bottleneck
Factory alternators equipped on the GMT319 chassis provide a modest 120-130 amps, engineered solely for baseline electrical demands. When auxiliary audio amplifiers, lighting, or supplemental power demands are added, the stock internal bridge rectifier suffers from extreme thermal saturation. This restriction results in idle voltage droop down to 12.0V, premature battery degradation, and stator diode failure on the factory 2.4L LE5 Ecotec platform under extended operation.
The Engineering Solution
Engineered for high-demand loads, this 250-amp unit utilizes heavy-gauge, high-temperature copper windings and an upgraded 12-diode avalanche rectifier to manage peak electrical resistance without thermal breakdown. Precision-wound stators yield up to 165 amps at engine idle speeds and a sustained 250-amp peak at operating RPM. The direct-fit cast aluminum housing bolts directly into factory brackets, ensuring correct belt alignment and steady 14.4V regulation without requiring ECM modifications.
What's Included
- 1x 250 Amp High Output Alternator
Technical Specifications
| Fitment | 2008-2010 Saturn Vue |
|---|---|
| Engine / Chassis | 2.4L LE5 Ecotec / GMT319 (Theta) |
| Stock Output | 169 hp / 161 lb-ft |
| Replaces OEM Part # | 20758751, 22762984, 11164N, 11164R, 11265, 11265n, FG12S010, GMT319, GMX001, GMX384, GMX386, 420532, 2650532, 15828450, 11164 |
Compatibility
- 2008-2010 Saturn Vue 2.4L Gas (XE, XR)
- 2008-2009 Saturn Vue 2.4L Hybrid (Green Line)
Frequently Asked Questions & Fitment Warnings
Does this fit the Theta Vue?
Yes, this is a direct bolt-on fit for the 2008-2010 Saturn Vue equipped with the 2.4L LE5 Ecotec four-cylinder engine.
Do I need to upgrade my charging cables?
Yes, a "Big 3" wiring upgrade with 1/0 or 4-gauge power and ground cabling is strongly recommended to safely carry 250 amps of current without harness resistance.
The Saturn Standard
Engineered to deliver clean, ripple-free current, this heavy-duty unit protects sensitive GM control modules while keeping auxiliary accessories running at maximum operational voltage.
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