DEF Filler Cap
Keep your DEF filler tube and reservoir contaminants-free with this CNC-machined billet aluminum cap. Featuring OEM-like internal threads and a high-quality O-ring that seals off the filler neck, it protects your DEF system from contaminants and moisture.Â
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Precision machined 6061 billet aluminum with blue anodized finish for durability. Internal O-ring provides a secure seal. Fluted design for extra grip.
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Fitment
- 2020-2026 3.0L LM2/LZ0 Duramax
- 2020-2026 6.6L L5P Duramax
