DEF Line Plug Weather Cap for 6.6L Duramax 6.7L Cummins 6.7L Power Stroke Diesel Trucks
| Brand | Model | Year | Engine Model |
|---|---|---|---|
| Chevrolet / GMC | Silverado / Sierra HD | 2001-2024 | 6.6L Duramax Diesel |
| Dodge / Ram | Ram HD | 2010-2024 | 6.7L Cummins Diesel |
| Ford | Super Duty | 2011-2024 | 6.7L Power Stroke Diesel |
✅ Exact Fitment Guarantee | If you are unsure about compatibility, contact us at service@egrperformance.com with your VIN.
- Shibby Engineering DEF Line Plug Weather Cap stops DEF dribbling, leakage and debris ingress at the injector end.
- Precision engineered for 6.6L Duramax, 6.7L Cummins and 6.7L Power Stroke diesel pickup applications.
- OEM-style snap-in interface delivers a secure, permanent yet fully removable weatherproof seal.
- Keep reading to learn full specifications, fitment details and installation instructions.
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Product Information
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Shipping & Returns


DEF Line Plug Weather Cap for 6.6L Duramax 6.7L Cummins 6.7L Power Stroke Diesel Trucks
DEF Line Plug Weather Cap for 6.6L Duramax 6.7L Cummins 6.7L Power Stroke Diesel Trucks
| Brand | Model | Year | Engine Model |
|---|---|---|---|
| Chevrolet / GMC | Silverado / Sierra HD | 2001-2024 | 6.6L Duramax Diesel |
| Dodge / Ram | Ram HD | 2010-2024 | 6.7L Cummins Diesel |
| Ford | Super Duty | 2011-2024 | 6.7L Power Stroke Diesel |
✅ Exact Fitment Guarantee | If you are unsure about compatibility, contact us at service@egrperformance.com with your VIN.
- Shibby Engineering DEF Line Plug Weather Cap stops DEF dribbling, leakage and debris ingress at the injector end.
- Precision engineered for 6.6L Duramax, 6.7L Cummins and 6.7L Power Stroke diesel pickup applications.
- OEM-style snap-in interface delivers a secure, permanent yet fully removable weatherproof seal.
- Keep reading to learn full specifications, fitment details and installation instructions.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
| Brand | Model | Year | Engine Model |
|---|---|---|---|
| Chevrolet / GMC | Silverado / Sierra HD | 2001-2024 | 6.6L Duramax Diesel |
| Dodge / Ram | Ram HD | 2010-2024 | 6.7L Cummins Diesel |
| Ford | Super Duty | 2011-2024 | 6.7L Power Stroke Diesel |
✅ Exact Fitment Guarantee | If you are unsure about compatibility, contact us at service@egrperformance.com with your VIN.
- Shibby Engineering DEF Line Plug Weather Cap stops DEF dribbling, leakage and debris ingress at the injector end.
- Precision engineered for 6.6L Duramax, 6.7L Cummins and 6.7L Power Stroke diesel pickup applications.
- OEM-style snap-in interface delivers a secure, permanent yet fully removable weatherproof seal.
- Keep reading to learn full specifications, fitment details and installation instructions.























