Dorman 620-5603 cooling fan blade for the 1992-2004 GMC W4500 Forward and other vehicles moves air across the radiator to help cool the engine. Use it to replace a damaged engine cooling fan blade.
- Six plastic blades with a 476 mm outside diameter
- Vehicle-specific design made for a precise fit
- Tested for proper fit and performance
- Made for a long service life
- Standard replacement item grade
Quick facts
- Part: Dorman 620-5603 cooling fan blade
- Also called: engine cooling fan blade
- Fits: 1992-2004 GMC W4500 Forward and other vehicles
- Material: Plastic
- Condition: New
A cracked, chipped or missing blade, or a fan that wobbles or makes noise, can mean the blade is damaged. Before you replace the blade, rule out a failing fan clutch, a coolant leak or a blocked radiator, because an engine that runs hot can have those causes too.
Fits
This blade is listed for a wide range of GMC, Chevrolet and Isuzu models, including the 1992-2004 GMC W4500 Forward and the 1995-1998 Chevrolet W3500 Tiltmaster 4-cylinder 3.9L, the 1995-2003 W3500 Tiltmaster V8 5.7L, the 1999-2004 W3500 Tiltmaster 4-cylinder 4.8L and the 2003-2004 W3500 Tiltmaster V8 6.0L. It is a vehicle-specific direct replacement that fits and works like the original equipment fan blade. The 1992-2004 GMC W4500 Forward takes one.
Specifications
Fit and size
- Outside diameter: 476 mm
- Number of blades: 6
- Quantity per vehicle: 1
Build and materials
- Material: Plastic
- Item grade: Standard replacement
- Condition: New
- Country of origin: China
In the box
One cooling fan blade. Mounting hardware is not included, and the old fasteners may not be reusable, so plan on new ones.
Interchange: 94036353 · 5136620120 · 5136620121 · 8943992860
This part cross-references / interchanges with the following part numbers:
94036353, 5136620120, 5136620121, 8943992860
Frequently Asked Questions
Does the Dorman 620-5603 cooling fan blade fit the 1992-2004 GMC W4500 Forward?
Yes, Dorman 620-5603 is listed for the 1992-2004 GMC W4500 Forward, which takes one; for any other vehicle, find your year, model and engine in the "Vehicles it fits" section.
Does this cooling fan blade come with mounting bolts?
No, this Dorman 620-5603 listing is the blade only; mounting hardware is not included, so plan on new fasteners.
How wide is this six-blade plastic cooling fan blade?
The outside diameter is 476 mm. The blade is plastic and has six blades.
How can I tell if a plastic cooling fan blade is damaged?
With the engine off and cool, look for cracks, chips or a missing piece on the blade. A fan that wobbles or makes noise in normal driving can also point to damage.
Does 8943992860 cross-reference to this Dorman cooling fan blade?
Yes, 8943992860 is one of the other-brand and OE numbers that Dorman 620-5603 replaces.
