High Output Alternator for Chevrolet Corvette (2002-2004) 5.7L
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High-Output 250-Amp Alternator for 2002-2004 Chevrolet Corvette (C5)
What it Does: The 250-amp high output alternator replaces the factory charging unit on the 2002-2004 Corvette to eliminate voltage drop and deliver stable electrical current under demanding operating loads.
The Stock Chevrolet Corvette Electrical Limitation
Factory charging systems on the C5 platform utilize factory alternators rated at 110 to 140 amps, which frequently struggle under increased electrical loads. In high ambient heat environments, the OEM diode bridge and regulator suffer from thermal saturation, resulting in rapid voltage drops at idle. Upgraded electric cooling fans, high-flow fuel pumps, aftermarket audio systems, and high-energy ignition coils exacerbate this issue, triggering dash-cluster "Charge System Fault" messages and diminishing electrical performance across the vehicle.
The Engineering Solution
Engineered and assembled in the USA, this direct-fit 250-amp alternator resolves charging deficiencies by providing over 140 amps at curb idle and a full 250 amps at operating RPM. It features heavy-gauge copper windings, premium internal heat sinks, and rugged avalanche diodes designed to resist heat soak in tight engine bays. Built to factory mounting geometry, it aligns seamlessly with the factory serpentine accessory drive on LS1 and LS6 platforms without requiring bracket modifications, directly replacing OEM units such as 10350160 and 10353440.
What's Included
- 1 250-Amp High Output Alternator
Technical Specifications
| Fitment | 2002-2004 Chevrolet Corvette |
|---|---|
| Engine / Chassis | 5.7L LS1 / LS6 / C5 |
| Stock Output | 350 hp / 375 lb-ft |
| Replaces OEM Part # | 10350160, 10353440, AL8800X, 334-1493, 13969, 10305775A, 10305775B, 13969A, 10327514, 15791160, 15841234, 25888970, TG15C046, TG15C089, TG15C107, TG15C139, TG15S051, 420151, 2605916, 2650151, 2650380, 2650491, 10305775, 2650073, TG15C013, TG15C051, TG155010, 420164, 2540073, 2542675 |
Compatibility
- 2002-2004 Chevrolet Corvette Base 5.7L V8 (LS1)
- 2002-2004 Chevrolet Corvette Z06 5.7L V8 (LS6)
Frequently Asked Questions & Fitment Warnings
Does this fit the C5 Corvette?
Yes, this is a direct fit for the 2002-2004 Chevrolet Corvette equipped with the 5.7L LS1 / LS6 engine.
Do I need to upgrade my main charging cables?
A Big 3 wiring upgrade utilizing 4-gauge or 1/0-gauge pure copper cable is highly recommended to safely support the full 250-amp capacity without system resistance.
The Chevrolet Performance Standard
Engineered to deliver uninterrupted charging under wide-open throttle, this high-output unit preserves ignition coil dwell and fuel pump flow rate, keeping your small block performing consistently down the strip or through the corners.
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