GM GENUINE RC122
GM GENUINE part number RC122 is a coolant reservoir cap in the Cooling System system. This catalog matches it to 116 year-and-engine configurations from 2000 to 2026.
Verified fitment includes 2026 Chevrolet Express 2500 4.3L V6 ; 2026 Chevrolet Express 2500 6.6L V8 ; 2026 Chevrolet Express 3500 4.3L V6 ; 2026 Chevrolet Express 3500 6.6L V8 ; 2026 Chevrolet Express 4500 6.6L V8 , plus 111 other configurations. See every vehicle this part fits.
Frequently Asked Questions
What is GM GENUINE RC122?
GM GENUINE part number RC122 is a coolant reservoir cap with published application data for 116 vehicle configurations from 2000 to 2026. Use the manufacturer part number to cross-reference your old part or a repair quote before you order.
Which vehicles does GM GENUINE RC122 fit?
This catalog matches RC122 to 116 year-and-engine configurations from 2000 to 2026. Open the compatible-vehicles list for every make, model and engine, and read the notes for position or trim qualifiers.
Is GM GENUINE RC122 OEM or aftermarket?
What matters is the published application data for this part number, not the label on the box. GM GENUINE RC122 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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