2020-2026 L5P LM2 LZ0 LWN Duramax Diesel Exhaust Fluid DEF Cap OEM GM 13548316

GM Part Number: 13548316. 2020–2025 Silverado / Sierra 1500 — 3.0L LM2 / LZ0 Duramax. 2020–2026 Silverado / Sierra 2500HD & 3500HD — 6.6L L5P Duramax. 2016–2022 Colorado / Canyon — 2.8L LWN Duramax. - Ensures proper sealing of DEF system.