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2007-2012 Nissan Altima thermostat opening temp

The exact OE thermostat opening temperature your Altima takes, plus the part number — cross-checked against two independent maker sources so you buy the right thermostat, not a hotter or cooler variant.

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2.5L I4 · 2007-20122.5L-I4

This engine uses two thermostats (a cold-side and a main). Replace both when you do the job.

OE opening temperature

  • Upper (cold-side)205°F (96°C)(part 15112)
  • Lower (main)180°F (82°C)(part 14678)
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OE temperature cross-checked against two independent maker sources (stant, gates) · confirmed Jun 2026. This is the factory opening temp, not a hotter or cooler performance variant. Your owner's manual is the final word.

Opening temperature confirmed against two independent maker sources — never changed by what an affiliate link pays us, and always the OE (factory) temp, never a low- or high-temp performance variant. Your owner's manual is always the final word.