Toyota 9091603046 — Engine Coolant Thermostat
Overview
Engine coolant thermostat Toyota 9091603046 controls coolant circulation between the engine bypass circuit and the radiator assembly. This unit features an opening temperature rating of 82 °C, a flange outer diameter of 56 mm, a frame height of 43 mm, and an integrated air jiggle valve to bleed trapped air during coolant refills. Constructed with a brass frame, stainless steel return spring, and a calibrated wax element, it maintains engine operating temperatures under load and prevents thermal shock. Factory original OEM cross-reference numbers include Toyota 90916-03046, 90916-03093, 90916-03120, 90916-03075, and 90916-03129.
Vehicle applications cover Toyota Camry XV30 and XV40, Corolla E120 and E150, RAV4 XA20 and XA30, Avensis T220 and T250, Yaris, and Hilux fitted with 1.4, 1.6, 1.8, 2.0, and 2.4 litre petrol or diesel engines produced between 1997 and 2018. Thermostat replacement is required when the valve sticks open causing low engine operating temperatures and poor cabin heating, or sticks closed resulting in coolant boil-over and engine overheating. Degradation of the internal wax element or perished rubber seals also requires unit replacement. Fitting a new thermostat restores design operating temperatures, stabilizes idle speed, and restores correct fuel consumption parameters.
Toyota 9091603046 — engine coolant thermostat. 5 offers available, starting from 35.92 USD.
Specifications
Manufacturer — Toyota. Article number — 9091603046. Name — Engine Coolant Thermostat. Offers — 5. From — 35.92 USD.
Compatible cross-references
Replacements and analogues: ABAKUS 0350250001, CONTINENTAL 28020040362, DENSO DTM82530.
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