High Output Alternator for Infiniti G20 (1994-1996) 2.0L

High-Output 180-Amp Alternator for 1994-1996 Infiniti G20 (P10)

What it Does: The High Output Alternator replaces the factory charging unit on the 1994-1996 Infiniti G20 to deliver up to 180 amps of stable electrical current, preventing voltage drop under high electrical loads.

The Stock Infiniti G20 Charging Deficiencies

The factory 80-amp charging system on the P10 chassis was engineered strictly for baseline electrical demands. When introducing modern high-draw electrical modifications—such as aftermarket audio amplifiers, upgraded electric radiator fans, or high-draw ignition components—the OEM unit quickly suffers from thermal overload and severe voltage drops at idle. Heat soak in the compact engine bay degrades the stock stator insulation and internal diodes over time, yielding common symptoms such as dimming headlights, slow starter cranking, erratic sensor readings, and incomplete battery charging cycles.

The Engineering Solution

Engineered as a direct bolt-in replacement, this 180-amp alternator significantly upgrades charging throughput across the entire RPM range of the SR20DE. The unit features heavy-gauge, high-temperature copper stator windings and precision-balanced rotors to handle sustained high-RPM operation without harmonic fatigue. Equipped with premium sealed bearings and an integrated solid-state internal voltage regulator, it stabilizes system potential between 13.5V and 14.5V under load. Factory-matched mounting brackets, correct drive pulley sizing, and an OEM-spec plug harness eliminate the need for bracket fabrication or wiring splices.

What's Included

• 1 x 180-Amp High Output Alternator (Part # 13723)

Technical Specifications

Compatibility

• 1994 Infiniti G20 Base / Touring Sedan 2.0L L4 (SR20DE)
• 1995 Infiniti G20 Base / Touring Sedan 2.0L L4 (SR20DE)
• 1996 Infiniti G20 Base / Touring Sedan 2.0L L4 (SR20DE)

Frequently Asked Questions & Fitment Warnings

Does this fit the P10 G20?

Yes, this is a direct fit for the 1994-1996 Infiniti G20 equipped with the SR20DE engine.

Do I need to upgrade my wiring when installing this 180-amp alternator?

While this alternator connects to the factory harness, upgrading the primary B+ charging wire and engine block ground straps (the "Big Three" upgrade) is recommended to safely carry full rated amperage without resistive voltage drop.

The Infiniti Performance Standard

Maintain the peak operational capability of your P10 chassis without sacrificing electrical headroom or engine management consistency during spirited road use.