











O-Ring between thermostat housing and cylinder head
2X Entries For Our G87 M2 Sweepstakes!We Price Match – Give Us A Call or Chat!
$3.80
2X Entries For Our G87 M2 Sweepstakes!We Price Match – Give Us A Call or Chat! O-Rings have multiple purposes and are very important to your vehicle’s health and functionality. Whether you need a replacement for your Thermostat Housing, Plastic Bypass Pipe or Cooling Sensors, ECS Tuning has the part for you. Stop leaks before they happen, replace your worn O-Rings at the first sign of wear, or while you're working on your cooling system.
917.931
| Mfg Part # | 021121119A |
|---|


Replace your dented rusty oil pan
2X Entries For Our G87 M2 Sweepstakes!We Price Match – Give Us A Call or Chat!


Keeps chain tight.
10X Entries For Our G87 M2 Sweepstakes!


Metal pipe that runs around the front of the block up the side of the cylinder head, commonly rusts out & starts leaking


Stepped plastic valves that resides under intake manifold & attached to the engine block breather system
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Oil filter cartridge with o-ring
5X Entries For Our G87 M2 Sweepstakes!We Price Match – Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!