Genuine GM DEF Cap (13548316) for 2020–2026 Duramax L5P, LM2, LZ0, LWN Engines

Description

Replace your missing or damaged cap with this Genuine GM DEF Cap, part number 13548316, designed for multiple GM Duramax diesel applications.

This is a factory OEM cap that provides the proper seal required to protect your DEF system from contamination, moisture intrusion, and evaporation. Using a genuine GM cap ensures correct fitment, reliable sealing, and long-term durability compared to aftermarket alternatives.

Features:
– Genuine OEM GM component
– Direct replacement DEF cap
– Ensures proper sealing of DEF system
– Prevents contamination and moisture intrusion

Part Information:
GM Part Number: 13548316
Replaces Part Number: 23138955
UPC: 195491119758

Fitment:
2020–2026 Silverado / Sierra 2500HD & 3500HD — 6.6L L5P Duramax
2020–2025 Silverado / Sierra 1500 — 3.0L LM2 / LZ0 Duramax
2016–2022 Colorado / Canyon — 2.8L LWN Duramax

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