Toyota 164010C030 — Radiator Cap Sub-Assembly
Overview
Radiator cap assembly Toyota 164010C030 regulates maximum operating pressure at 1.1 bar (108 kPa) within closed automotive engine cooling circuits. Manufactured with a zinc-plated steel cap body, stainless steel internal spring, and heat-resistant EPDM rubber seal gaskets, this pressure cap unit prevents coolant boiling above 100 °C. The twin-valve vacuum mechanism discharges excess fluid to the overflow expansion tank under thermal expansion during engine operation, then draws coolant back as circuit temperature drops. Key dimensions include a 45 mm outer lock-tab diameter and a 28 mm lower valve seal diameter. OEM part number: Toyota 16401-0C030. Equivalent cross-reference numbers include 16401-0C010, 16401-75120, and 16401-50021.
This component fits Toyota Hilux, Fortuner, Land Cruiser Prado 120, Land Cruiser Prado 150, Tacoma, Tundra, and 4Runner vehicles manufactured from 2004 to 2021. Engine compatibility includes petrol units 2.7L 2TR-FE, 4.0L 1GR-FE, 4.7L 2UZ-FE, alongside turbo-diesel variants 2.5D 2KD-FTV and 3.0D 1KD-FTV. Replace the radiator cap assembly when rubber seal rings harden or perish, internal spring tension decreases, relief valves seize, or visible coolant leakage occurs around the filler neck seat assembly during scheduled cooling system inspections.
Toyota 164010C030 — radiator cap sub-assembly. 5 offers available, starting from 20.15 USD.
Specifications
Manufacturer — Toyota. Article number — 164010C030. Name — Radiator Cap Sub-Assembly. Offers — 5. From — 20.15 USD.
Compatible cross-references
Replacements and analogues: HONDA 19045PAAA01, HONDA 19045PWA004, METALCAUCHO 03605, STC T403605, SUZUKI 1792075F00.
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