Hose connection found on the back of the block
$19.00
The 03H121145A Coolant Inlet Flange is a genuine OEM replacement part designed to connect the engine’s coolant system securely and ensure consistent coolant flow. This critical component helps regulate engine temperature and prevents overheating by maintaining a leak‑free connection between coolant lines.
Over time, plastic coolant flanges are prone to cracking and leaks due to heat cycling, coolant exposure, and vibration. A worn or damaged flange can cause coolant loss, overheating, and even engine failure if left unchecked. Replacing it with a genuine OEM unit ensures durability, perfect fitment, and restored reliability.
🔹 Features & Benefits:
| Weight | .5 lbs |
|---|---|
| Dimensions | 6 × 4 × 3 in |
| Mfg Part # | 03H121145A |
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Ensure a proper seal when installing your new thermostat. 50×4
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Stepped plastic valves that resides under intake manifold & attached to the engine block breather system
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O-Ring between thermostat housing and cylinder head
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