Proudly focused on American made products.
This black nylon screw-type retainer is designed for GM radiator overflow jar mounting applications, with documented use on Chevrolet Camaro and Pontiac Firebird vehicles. Its open-end configuration provides replacement mounting hardware when the original retainer matches the required hole size and dimensional configuration.
The retainer fits a 5/16" mounting hole and features a 43/64" head diameter with a 23/64" stem length. It uses a Phillips or hex drive and cross-references GM OEM number 20451119.
OEM Cross Reference
GM: 20451119
| Product Type | Radiator Overflow Jar Retainer |
| Application | GM |
| Common Uses | Radiator Overflow Jar / Coolant Recovery Tank |
| Type | Screw-Type with Open End |
| Hole Size | 5/16" |
| Head Diameter | 43/64" |
| Stem Length | 23/64" |
| Drive Type | Phillips & Hex |
| Material | Nylon |
| Color | Black |
| GM OEM Cross Reference | 20451119 |
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