12557840 Engine Harmonic Balancer Bolt for GM Performance Parts, for Most of Gen 3 and Gen 4 LS Engines Crank Bolt, Replaces # 917-139, 1 Pack
| Country | USA |
| Brand | LifeOil |
| Manufacturer | The Alden Group Inc. (Grocery) |
| Binding | Grocery |
| Size | 25.3 Fl Oz (Pack of 2) |
| UnitCount | 2 |
| ReleaseDate | 0000-00-00 |