Spark Plug
NGK BPR5ES
8 compatible models
The NGK BPR5ES is an aftermarket spark plug compatible with 8 models across 2 brands. It is a direct cross-reference for OEM part numbers 491055S, 796112S, 98079-55846. Compatible equipment includes Briggs & Stratton 450e Series, Briggs & Stratton 500e Series, Briggs & Stratton 550ex Series, Briggs & Stratton 625ex Series, Briggs & Stratton 675ex Series, and 3 more.
Verify before ordering: Fitment can vary by serial number, production date, region, and sub-model. Match the OEM number and physical dimensions before ordering.
Compare Merchants
Use these links to compare price, kit contents, shipping, and OEM availability before ordering.
Some links may be affiliate links. Match the OEM number, dimensions, and model variant before buying.
Compatible Models
| Brand | Model | OEM # | Confidence | Source | Reviewed | Evidence | |
|---|---|---|---|---|---|---|---|
| Briggs & Stratton | 450e Series | 491055S | Medium | Aftermarket catalog | 2026-05-21 | 0.030 inch gap | Small Engine |
| Briggs & Stratton | 500e Series | 796112S | Medium | Aftermarket catalog | 2026-05-20 | 0.030" gap | Small Engine |
| Briggs & Stratton | 550ex Series | 796112S | Medium | Aftermarket catalog | 2026-05-20 | 0.030" gap | Small Engine |
| Briggs & Stratton | 625ex Series | 796112S | Medium | Aftermarket catalog | 2026-05-20 | 0.030" gap | Small Engine |
| Briggs & Stratton | 675ex Series | 796112S | Medium | Aftermarket catalog | 2026-05-20 | 0.030" gap | Small Engine |
| Briggs & Stratton | 725EXi Series | 796112S | Medium | Aftermarket catalog | 2026-05-20 | 0.030" gap | Small Engine |
| Briggs & Stratton | 850EXi Series | 796112S | Medium | Aftermarket catalog | 2026-05-20 | 0.030" gap | Small Engine |
| Honda | GX120 | 98079-55846 | Medium | Aftermarket catalog | 2026-05-20 | 0.7-0.8mm gap | Small Engine |