The Speedmaster 2 3/8" Chrome Twist-In Inround Valve Cover Breather Cap (PCE309.1002) is a chrome-plated engine breather component designed to fit standard inround valve covers. This twist-in style cap allows engine vapor to escape while preventing dirt and debris from entering the crankcase, making it an essential maintenance part for proper engine breathing.
The 2 3/8" inround design provides compatibility with Speedmaster valve covers and similar aftermarket engine dress-up applications. The polished chrome finish delivers a clean, professional appearance under the hood while offering corrosion resistance. Ideal for custom engine builds, performance restorations, and street rod projects where quality air separation and ventilation are priorities.
Key Features & Benefits
- 2 3/8" Inround Fit: Twist-in design compatible with standard inround valve cover openings.
- Polished Chrome Finish: Durable chrome plating resists corrosion and enhances engine bay appearance.
- Engine Breather Function: Allows controlled crankcase vapor ventilation while excluding contaminants.
- Speedmaster Brand: OEM replacement or upgrade component from trusted Speedmaster performance line.
Specifications
| Brand | Speedmaster |
| Model/MPN | PCE309.1002 |
| Size | 2 3/8" inround |
| Style | Twist-In |
| Finish | Chrome |
| Type | Valve Cover Breather Cap |
Ideal Applications
- Custom and street rod engine builds requiring proper crankcase ventilation
- Aftermarket engine dress-up and restoration projects
- Performance engine applications using Speedmaster valve covers
- High-performance or modified engine installations needing breather management