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$6.95
The 037121121A Coolant Flange is an OEM‑quality replacement designed to connect the engine block to the cooling system hoses while providing a sealed pathway for coolant flow. Located near the cylinder head, this flange keeps coolant circulating correctly and prevents overheating.
Over time, factory coolant flanges can crack, warp, or leak due to heat exposure and pressure. A failing flange may cause coolant loss, warning lights, or overheating. Replacing it with this durable OEM‑spec flange restores system reliability and peace of mind.
🔹 Features & Benefits:
| Weight | .20 lbs |
|---|---|
| Dimensions | 4 × 3 × 3 in |
| Mfg Part # | 037121121A |

Replace your dented rusty oil pan – 021103601B


Keeps chain tight.
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Oil filter cartridge with o-ring


Hose connection found on the back of the block


O-Ring between thermostat housing and cylinder head
2X Entries For Our G87 M2 Sweepstakes!We Price Match – Give Us A Call or Chat!