2023 GMC Sierra 2500 HD Radiator Cap
Navigate our online catalogue to find original replacement Radiator Caps specifically designed to fit a 2023 GMC Sierra 2500 HD.








Radiator Cap
$20.60
10+ In Stock
Ships: Today, Oct. 2nd
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 6571cc 401ci V8 (4.06x3.86; 103.2x98.0);
Engine Base: 6.6L 6571cc 401ci V8 (4.06x3.86; 103.2x98.0);
Vehicle Fitment Notes:
Relief pressure 20 lb
Relief pressure 20 lb







Radiator Cap
$20.60
10+ In Stock
Ships: Today, Oct. 2nd
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Pick-Up: Ready in 2-3 Hours (Order before 3:30 PM)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 6599cc 403ci V8 (4.06x3.90; 103.0x99.0);
Engine Base: 6.6L 6599cc 403ci V8 (4.06x3.90; 103.0x99.0);
Vehicle Fitment Notes:
Relief pressure 20 lb
Relief pressure 20 lb