Front Radiator for 2005-2009 Cadillac STS & More - Spectra Premium CU2733

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$174.99
WARNING:California Proposition 65▾
MPN: CU2733
UPC: 671607750409
Item Package Quantity: 1
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Spectra Premium Radiator P/N:CU2733
Spectra Premium Radiator P/N:CU2733
$174.99

Spectra Premium CU2733 front radiator for the 2005-2009 Cadillac STS V6 3.6L or V8 4.6L, the 2006-2009 STS V8 4.4L and other vehicles moves engine coolant through its core to shed heat. Its structure and design are built to the same durability expectations as the OE radiator.

  • Single-row aluminum core in a cross-flow layout
  • Plastic tank material
  • Post mounting type
  • Inlet at the bottom left and outlet at the bottom right, each 1.3125 inch in diameter
  • Core measures 23.625 inch high by 20.375 inch wide and is 1 inch thick

Quick facts

  • Part: Spectra Premium CU2733 radiator
  • Fits: 2005-2009 Cadillac STS V6 3.6L or V8 4.6L, the 2006-2009 STS V8 4.4L and other vehicles
  • Position: Front
  • Material: Aluminum core, plastic tanks
  • Condition: New

A radiator that leaks at the tanks or core, a coolant level that keeps dropping or an engine that runs hotter than normal can all be signs it is failing. Before you replace the radiator, rule out a loose hose, a sticking thermostat or a weak water pump, since each can overheat an engine on its own. Check the coolant level only with the engine cool.

Fits

This radiator is a direct-fit replacement for the 2005-2009 Cadillac STS V6 3.6L or V8 4.6L and the 2006-2009 STS V8 4.4L. It is also a direct-fit radiator for the 2004-2007 Cadillac SRX V6 3.6L or V8 4.6L.

Specifications

Fit and size

  • Position: Front
  • Quantity per vehicle: 1
  • Core height: 23.625 inch
  • Core width: 20.375 inch
  • Core thickness: 1 inch
  • Inlet and outlet headers: 21.4375 inch long, 2 inch wide each
  • Inlet and outlet diameter: 1.3125 inch each
  • Inlet location: Bottom left
  • Outlet location: Bottom right

Build and materials

  • Core material: Aluminum
  • Tank material: Plastic
  • Core rows: 1
  • Flow type: Cross flow
  • Mounting type: Post
  • Condition: New
  • Country of origin: China

In the box

One radiator; the vehicle takes one. A frame, an engine oil cooler and a transmission oil cooler are not included.

Frequently Asked Questions

Is this a 2005 Cadillac STS radiator for the V6 3.6L or V8 4.6L?

Yes. Spectra Premium CU2733 is a front radiator that fits the 2005 Cadillac STS with the V6 3.6L or V8 4.6L engine, and the vehicle takes one.

How big is the core on this Spectra Premium radiator?

The CU2733 has a single-row aluminum core 23.625 inches high, 20.375 inches wide and 1 inch thick. Its inlet and outlet are each 1.3125 inch in diameter.

Does the CU2733 radiator come with a frame or oil coolers?

No. This listing is one radiator; a frame, an engine oil cooler and a transmission oil cooler are not included.

How can I tell if a plastic-tank radiator like this one is worn?

Coolant seepage or crusty residue at the tanks or core, a falling coolant level or an engine running hotter than normal can be signs of a radiator problem. Look only with the engine cool; a shop can pressure-test the system.

Is the CU2733 a cross-flow radiator, and what are its tanks made of?

Yes. This radiator is cross flow, with the inlet at the bottom left and the outlet at the bottom right. The tanks are plastic and the core is aluminum.