Description
Radiator Cap – 31511
Features & Benefits:
All Gates radiator pressure caps are constructed of corrosion-resistant, heavy-gauge metal. This assures long service life and accurate control of pressure.
Can be used for applications with or without coolant recovery systems.
- Safety release lever.
- Protects against accidental burns by releasing steam through overflow tube.
Common Applications Include:
| Make | Model | Year Range | Engine Base |
| Pontiac | Bonneville | 1957 | V-8 347 |
| Pontiac | Bonneville | 1958 | V-8 370 |
| Pontiac | Bonneville | 1959-1961 | V-8 389 |
Product Specifications:
| Attachment Type | Cam On |
| Cap Depth (IN) | 1.48 |
| Cap Finish | Stainless Steel |
| Color | Silver |
| Coolant Recovery System | Optional System |
| Filler Neck Depth (IN) | 0.75 |
| Filler Neck Inside Diameter (IN) | 1.61 |
| Filler Neck Outside Diameter (IN) | 2.13 |
| Height (IN) | 1.48 |
| Lever Type | Yes |
| Quick Pressure Release | Yes |
| Shell Outside Diameter (IN) | 2.61 |
| Type | Safety Release Cap |
| Valve Outside Diameter (IN) | 1.54 |
| Width (IN) | 2.25 |



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