2011 GMC Sierra 2500 HD Radiators

Genuine GM radiators for the 2011 GMC Sierra 2500 HD, at wholesale prices. Radiator part numbers split on engine, transmission cooler and tow package, and the fittings differ between them. GMT900 HD through 2014, K2XX HD from 2015 to 2019, and the T1XX HD from 2020.

Signs it is time

Overheating in traffic, or coolant pooling at the front of the vehicle. On a heavy duty pickup, two trucks with the same badge can take different parts once cab style and drivetrain are accounted for.

The case for genuine GM

• Central shipping origin. Dallas keeps radiators transit times short nationwide.
• Backed after the sale. If your radiators does not work out, we make it right.
• Factory warranty. Genuine radiators carry GM coverage aftermarket cannot match.

Making sure it fits

GM revises parts mid-production. The OEM catalog tracks those revisions; cross-reference tables usually do not. Send us your VIN and we will confirm the exact part number before you order. Orders in by 3pm Central usually go out the same day, with shipping calculated at real cost.