Speedmaster®
Freeze Plug, Steel, 29/64 in. Diameter, Steel, Shallow Cup, Ford, Jeep [RNB-555-004]
![Speedmaster® PCE285.1018 Freeze Plug, Steel, 29/64 in. Diameter, Steel, Shallow Cup, Ford, Jeep [RNB-555-004]](https://product-arena.s3-us-west-1.amazonaws.com/ProcompElectronics/PCE285%20-%20Engine%20Block%20Expansion%20Plugs/PCE285.1018/PCE285.1018.jpg?resizeid=224&resizeh=600&resizew=600)
![Speedmaster® PCE285.1018 Freeze Plug, Steel, 29/64 in. Diameter, Steel, Shallow Cup, Ford, Jeep [RNB-555-004]](https://product-arena.s3-us-west-1.amazonaws.com/ProcompElectronics/PCE285%20-%20Engine%20Block%20Expansion%20Plugs/PCE285.1018/PCE285.1018_A.jpg?resizeid=224&resizeh=600&resizew=600)
![Speedmaster® PCE285.1018 Freeze Plug, Steel, 29/64 in. Diameter, Steel, Shallow Cup, Ford, Jeep [RNB-555-004]](https://product-arena.s3-us-west-1.amazonaws.com/ProcompElectronics/PCE285%20-%20Engine%20Block%20Expansion%20Plugs/PCE285.1018/PCE285.1018_B.jpg?resizeid=224&resizeh=600&resizew=600)
![Speedmaster® PCE285.1018 Freeze Plug, Steel, 29/64 in. Diameter, Steel, Shallow Cup, Ford, Jeep [RNB-555-004]](https://product-arena.s3-us-west-1.amazonaws.com/ProcompElectronics/PCE285%20-%20Engine%20Block%20Expansion%20Plugs/PCE285.1018/PCE285.1018_C.jpg?resizeid=224&resizeh=600&resizew=600)
Product Information
Overview
Speedmaster steel shallow cup freeze plugs
Specs
| Brand: | Speedmaster |
| Part Number: | PCE285.1018 |
| Part Type: | Engine Block Expansion Plug |
| Expansion Plug Material: | Steel |
| Diameter (in.) | 29/64 in. |
| Expansion Plug Type: | Shallow Cup |
| Quantity: | Sold Individually. |
| Notes: | Can Be Used To Block Injector Port |
Warranty Information
12-Month Limited Worldwide Warranty
Prop 65 Warning
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Installation Guide
Our AI assistant generates a step-by-step guide for this product — covering installation, maintenance, and troubleshooting.
This AI-generated guide is for general reference only and does not constitute official Speedmaster product documentation. Always verify fitment, torque specifications, and safety requirements before installation.