Spectra Premium CU1786 radiator for the 1996-2005 Chevrolet Astro V6 4.3L and other vehicles passes engine coolant through a cross-flow aluminum core to shed heat. Its structure and design are built to take on the same durability and expectations as the OE.
- Aluminum core with one row, 28.25 in high, 17.25 in wide and 1 in thick
- Plastic tanks with the inlet at the top left and the outlet at the bottom right
- Built-in engine oil cooler, plated, 3 plates, M20 - 1.5 female fitting
- Built-in transmission oil cooler, plated, 3 plates, 5/8-18 UNF female fittings
- Post-type mounting
Quick facts
- Part: Spectra Premium CU1786 radiator
- Fits: 1996-2005 Chevrolet Astro V6 4.3L and other vehicles
- Material: Aluminum core, plastic tanks
- Condition: New
Coolant leaks at the core or tanks, a temperature gauge that climbs, or a coolant level that keeps dropping can mean the radiator is failing. Before replacing it, let the engine cool completely, then look over the core and tanks for wet spots, cracks or bent fins. A pressure test is a job for a shop.
Fits
It fits the 1996-2005 Chevrolet Astro V6 4.3L and the 1996-2005 GMC Safari V6 4.3L, and each of them takes one.
Specifications
Fit and size
- Quantity per vehicle: 1
- Core height: 28.25 in
- Core width: 17.25 in
- Core thickness: 1 in
- Core rows: 1
- Inlet diameter: 1.3125 in
- Outlet diameter: 1.5625 in
- Inlet and outlet headers: 18.6875 in long, 2.4375 in wide
- Inlet location: top left
- Outlet location: bottom right
- Mounting type: Post
- Distance between fittings: 11.5 in on the engine oil cooler and on the transmission oil cooler
Build and materials
- Flow type: cross flow
- Core material: aluminum
- Tank material: plastic
- Engine oil cooler: internal, plated, 3 plates, M20 - 1.5 female fitting
- Transmission oil cooler: internal, plated, 3 plates, 5/8-18 UNF female fittings
- Frame: not included
- Condition: New
- Country of origin: China
In the box
One radiator with a built-in engine oil cooler and a built-in transmission oil cooler. A frame is not included.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is the Spectra Premium CU1786 a 2000 Chevy Astro V6 4.3L radiator?
Yes. Spectra Premium CU1786 fits the 1996-2005 Chevrolet Astro V6 4.3L, and the 2000 model year falls inside that range.
Does the CU1786 work as a Safari radiator on the 1996-2005 GMC Safari V6 4.3L?
Yes. Spectra Premium CU1786 fits the 1996-2005 GMC Safari V6 4.3L, and that vehicle takes a single radiator.
Does the CU1786 radiator include its oil coolers and a frame?
The radiator comes with a built-in engine oil cooler and a built-in transmission oil cooler. A frame is not included.
Is the core on this radiator aluminum or plastic?
The core is aluminum, with one row and a cross-flow design, and the tanks are plastic. It measures 28.25 in high, 17.25 in wide and 1 in thick.
What fittings do the oil coolers on this radiator use?
The transmission oil cooler has 5/8-18 UNF female fittings, and the engine oil cooler uses an M20 - 1.5 female fitting. Both sets of fittings sit 11.5 in apart.
