Factory freeze plugs were never designed with repeatable installation, serviceability, or engine aesthetics in mind. Anyone who has installed OEM steel plugs knows the risk—tap them in too far, deform the plug, or damage the block during removal. The PHR Billet Freeze Plug Set for the 4G63 was designed specifically to eliminate those problems.
Each plug is CNC machined from billet aluminum and features a machined outer stop lip, preventing the plug from being driven too far into the block during installation. This eliminates one of the most common installation mistakes with OEM freeze plugs and makes tapping them in straightforward and controlled—no guessing depth, no crushed plugs, no stress.
For serviceability, every plug includes a center threaded hole, allowing easy removal using a slide hammer or puller. Unlike factory steel plugs that deform during removal and must be discarded, PHR billet freeze plugs can be removed and reinstalled repeatedly without damage. They will not collapse, distort, or fatigue over time.
Additional backside machining reduces unnecessary mass while maintaining strength, and the CNC-machined exterior finish provides a clean, high-end appearance that noticeably improves the look of the engine block—especially on fully detailed builds or exposed engine bays.
This is a small component that solves multiple real-world problems while delivering durability, serviceability, and visual refinement in one package.
Features
- CNC-machined billet aluminum construction
- Outer stop lip prevents over-installation
- Simple, controlled hammer-in installation
- Center threaded hole for easy removal with slide hammer or puller
- Reusable design — will not deform like OEM steel plugs
- Backside-machined to reduce excess weight
- Corrosion-resistant and long-lasting
- Precision CNC finish enhances engine block appearance
Applications
- Mitsubishi 4G63 engines
- Street, track, and race builds
When building or servicing a 4G63, the smallest components often create the biggest headaches. The PHR Billet Freeze Plug Set was engineered to remove frustration from both installation and future service—while delivering a level of fit, finish, and durability that matches the rest of your build.
6 Bolt DSM Kit Includes: | 7 Bolt DSM Kit Includes: |
(9) 35mm freeze plugs | (7) 35mm freeze plugs |
(2) 40mm freeze plugs |
Specifications
| Vehicle Fitment | |
|---|---|
| Make | Mitsubishi |
| Model | EVO, DSM |
| Chassis Code | D22A, D27A, D32A, D33A, D38A |
| Generation | 1st Gen, 2nd Gen |
| Variants | |
|---|---|
| Select Model | 7 Bolt (2G DSM / Evo 4-9) or 6 Bolt (1G DSM / Evo 1-3) |