What is better Mellling vs. GM oil pump?

Both Melling and GM oil pumps are reputable brands and offer quality products. The better choice between the two depends on factors such as the specific application, compatibility, and personal preference.

GM Genuine Parts 21649 | Radiator

Part Number

21649

Reliable GM Genuine Parts Radiator for optimal engine cooling. Perfect fit for select Cadillac, Chevrolet, GMC, and Hummer models.

Fits various model years of the following vehicles: Cadillac, Chevrolet, GMC, Hummer

Special Price $425.97 Regular Price $448.39

---------OR---------

In stock

Estimated Ship Date: 1 Business Day or Less

Skip to the end of the images gallery

Skip to the beginning of the images gallery

Product Information

Description

This GM Genuine Parts Radiator, part number 21649, is the definitive choice for maintaining and enhancing the cooling efficiency of your vehicle's engine. Built with corrosion-resistant aluminum, this radiator ensures superior heat transfer, making it an essential replacement part for your GM vehicle. Designed, engineered, and tested to meet General Motors' rigorous standards, it guarantees compatibility and performance, fitting a variety of models including Chevrolet, GMC, Cadillac, and Hummer vehicles.DIY enthusiasts and professional mechanics alike will appreciate the OE-level quality of this radiator—formerly known as ACDelco GM Original Equipment—ensuring a seamless fit and reliable function in a range of vehicle models. Besides its essential role in cooling your engine, this radiator's lightweight build also provides a high heat transfer to weight ratio, making it a smart choice for those looking to optimize vehicle performance without adding unnecessary weight.

Features

Genuine GM OE radiator for precise fit in GM, Cadillac, Chevrolet, and Hummer models
Constructed with corrosion-resistant aluminum for extended durability
Optimizes engine cooling with superior heat transfer capabilities
Lightweight design improves vehicle performance
Validated by GM engineers to meet rigorous quality standards

Specifications

Core Height:	438.64 mm
Core Thickness:	27.06 mm
Core Width:	863.88 mm
Dimensions (in):	45.900 x 7.400 x 24.700
Weight:	15.43 lb
Programming Required:	No
Compatible Vehicles:	Cadillac Escalade, Chevrolet Silverado, GMC Sierra, etc.