Spectra Premium CU730 radiator for the 1987-1988 GMC R2500 Suburban V8 7.4L, the 1987-1991 R2500 Suburban V8 5.7L and other vehicles moves heat from the engine coolant into the air passing through its core. This Spectra Premium radiator has a built-in transmission oil cooler, and its structure and design are meant to match the durability and expectations of the OE.
Coolant leaks at the core or tanks, or an engine that runs hot, can mean the radiator is worn, though a thermostat or water pump can also be behind them.
The listing covers a wide range of Chevrolet and GMC models, including the 1989-1991 Chevrolet R1500 Suburban V8 5.7L and the 1989-1991 Chevrolet R2500 Suburban V8 5.7L. Owners of other models can look up their year and engine in the "Vehicles it fits" section.
Fit and size
Build and materials
One radiator with its built-in transmission oil cooler. A frame and an engine oil cooler are not included. This listing holds one radiator, and each vehicle takes one.
Is the Spectra Premium CU730 radiator right for the 1987-1988 GMC R2500 Suburban V8 7.4L?
Yes. Spectra Premium CU730 is listed for the 1987-1988 GMC R2500 Suburban V8 7.4L and the 1987-1991 R2500 Suburban V8 5.7L, among others. Other models can be looked up in the "Vehicles it fits" section.
Does the CU730 radiator come with a transmission oil cooler?
Yes. Spectra Premium CU730 has a built-in plated transmission oil cooler with 1/2-20 UNF female fittings. A frame and an engine oil cooler are not included.
Is this radiator core aluminum or plastic?
The core is aluminum with two rows, and the tanks are plastic. This radiator is a cross-flow design with the inlet at the top left and the outlet at the bottom right.
How can I tell if my radiator is leaking?
Coolant stains or drips under the front of the vehicle, wet or crusted spots on the core or tanks, or a low coolant level checked with the engine cool can point to a leak. A shop can pressure-test the system.
What are the inlet and outlet diameters and the core size of this radiator?
The inlet diameter is 1.3125 in and the outlet diameter is 1.625 in. The core measures 28.4375 in high, 19.1875 in wide and 2.1875 in thick.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
