Allstar Performance ALL50813
Allstar Performance ALL50813 Red Plastic Plug User Manual
Brand: Allstar Performance
1. Product Overview
The Allstar Performance ALL50813 Red Plastic Plug is designed to protect automotive lines and hoses from debris and contamination. This plug is specifically sized for -6AN 9/16-18 threads and is supplied in a pack of 20 pieces. Its primary function is to maintain cleanliness of internal components in systems such as dry sump pumps, fuel pumps, and pressure regulators during storage or transport.

Image 1.1: Allstar Performance ALL50813 Red Plastic Plugs.
2. Key Features
- Thread Compatibility: Designed for -6AN 9/16-18 thread sizes.
- Material: Constructed from high-quality red plastic for durability and visibility.
- Debris Protection: Essential for preventing foreign particles from entering lines and hoses.
- Component Preservation: Ideal for keeping internal components of dry sump pumps, fuel pumps, and pressure regulators clean during storage.
- Versatile Fit: Compatible with both 37-degree flared fittings and straight threaded ports.
- Packaging: Sold in a convenient pack of 20 pieces.
3. Installation and Usage
The Allstar Performance Red Plastic Plugs are designed for straightforward installation to protect open ports and lines.
- Identify Compatible Port: Ensure the port or line you intend to plug is a -6AN 9/16-18 thread. The plug is designed to fit both 37-degree flared fittings and straight threaded ports.
- Inspect Plug: Before installation, visually inspect the plastic plug for any signs of damage, cracks, or deformities that could compromise its sealing ability.
- Insert and Hand-Tighten: Carefully align the plug with the port. Insert the threaded end of the plug into the port and hand-tighten until snug. Avoid over-tightening, as this is a plastic component and excessive force can strip threads or damage the plug. The plug should provide a secure, debris-preventing seal.
- Removal: To remove, simply unscrew the plug by hand in a counter-clockwise direction.
These plugs are intended for temporary sealing during storage, transport, or maintenance to prevent the ingress of dirt, dust, moisture, and other contaminants into sensitive automotive components.

Image 3.1: Top view of a single Allstar Performance Red Plastic Plug.
4. Maintenance
The Allstar Performance Red Plastic Plugs require minimal maintenance. To ensure their longevity and effectiveness:
- Cleaning: If the plugs become dirty, wipe them clean with a damp cloth. Avoid harsh chemicals that could degrade the plastic material.
- Inspection: Periodically inspect the plugs for any signs of wear, cracking, or thread damage. Damaged plugs may not provide an adequate seal and should be replaced.
- Storage: Store unused plugs in a clean, dry environment away from direct sunlight and extreme temperatures to prevent material degradation.
5. Troubleshooting
While these plugs are simple in design, minor issues can arise:
- Plug Does Not Thread Smoothly:
- Ensure the port is clean and free of debris or damaged threads.
- Verify that the port is indeed a -6AN 9/16-18 thread. Using an incorrect size plug can cause damage.
- Check the plug's threads for any manufacturing defects or damage.
- Plug Feels Loose After Tightening:
- Confirm the correct thread size.
- Inspect the internal threads of the port for wear or damage.
- Ensure the plug is fully seated against the flared fitting or port face.
If issues persist, discontinue use and ensure the correct plug size and port condition.
6. Specifications
| Attribute | Detail |
|---|---|
| Model Number | ALL50813 |
| Brand | Allstar Performance |
| Material | Plastic |
| Color | Red |
| Thread Size | -6AN (9/16-18) |
| Quantity | 20 pieces per pack |
| Item Weight | 1.76 ounces (approx. for the pack) |
| Product Dimensions | 5.5 x 8.95 x 1.05 inches (packaging dimensions) |
| UPC | 848238026658 |
7. Warranty and Support
Specific warranty information for the Allstar Performance ALL50813 Red Plastic Plugs is typically provided by the manufacturer at the time of purchase or on their official website. For detailed warranty terms, product support, or technical assistance, please refer to the official Allstar Performance website or contact their customer service department directly.
It is recommended to retain your purchase receipt for any warranty claims.
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