ACDELCO 4K423
ACDELCO part number 4K423 is a belt in the Belt Drive system. This catalog matches it to 31 year-and-engine configurations from 2019 to 2025.
Verified fitment includes 2025 Audi RS Q8 4.0L V8 Turbocharged ; 2025 Audi RS6 4.0L V8 Turbocharged ; 2025 Audi S8 4.0L V8 Turbocharged ; 2025 Audi SQ7 4.0L V8 Turbocharged ; 2025 Audi SQ8 4.0L V8 Turbocharged , plus 26 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is ACDELCO 4K423?
ACDELCO part number 4K423 is a belt with published application data for 31 vehicle configurations from 2019 to 2025. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does ACDELCO 4K423 fit?
This catalog matches 4K423 to 31 year-and-engine configurations from 2019 to 2025. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is ACDELCO 4K423 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. ACDELCO 4K423 is listed with its manufacturer part number so you can compare it to an OEM number or another brand that covers the same fitment.
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