Gates 38420 belt tensioner for the 2006-2011 Chevrolet Impala V6 3.5L or 3.9L and other vehicles keeps the accessory drive belt under steady tension. Also called a serpentine belt tensioner, this automatic unit sits in the belt drive and holds the belt tight.
- Part of the Gates DriveAlign automatic belt tensioner line
- Patented labyrinth seal protects the internal components
- Patented vibration-damping system absorbs extreme vibration to improve tensioner, belt and accessory life
- Torsional round spring design for reliability and consistent tension
- Flanged pulley with 6 V-ribbed grooves
Quick facts
- Part: Gates 38420 belt tensioner
- Also called: serpentine belt tensioner
- Fits: 2006-2011 Chevrolet Impala V6 3.5L or 3.9L and other vehicles
- Material: Thermoplastic
- Condition: New
A squealing or chirping belt, a belt that flutters or wears unevenly, or noise from the tensioner pulley can mean this tensioner is worn, though a worn drive belt or a bad idler pulley can be behind them too, so rule those out first.
Fits
The vehicles it fits include the 2006-2011 Chevrolet Impala V6 3.5L or 3.9L, the 2006-2007 Chevrolet Malibu V6 3.9L and 2007-2010 Malibu V6 3.5L, and the 2006-2009 Pontiac G6 V6 3.9L and 2007-2010 G6 V6 3.5L. For any other Chevrolet, Buick, Pontiac or Saturn model, find your year and engine in the “Vehicles it fits” section. Each tensioner is made to rigid tolerances and specifications for OE fit, form and function.
Specifications
Fit and size
- Quantity per vehicle: 1
- Outside diameter: 74 mm (2.91 in)
- Width: 26 mm (1.02 in)
- Bearing bore inside diameter: 17 mm (0.67 in)
- Pulley grooves: 6
- Mounting holes: 1
Build and materials
- Material: Thermoplastic
- Belt type: V-ribbed
- Contact surface: V-ribbed grooved
- Pulley: 1, flanged
- Grade: OE Exact
- Condition: New
- Country of origin: Turkey
In the box
One belt tensioner assembly. This listing holds a single tensioner, and the car needs just one.
Interchange: 419-009
305383 · 89383 · 12577764 · 12603527 · 49391 · 999775A · 999775
This part cross-references / interchanges with the following part numbers:
38420, 305383, 89383, 419-009, 12577764, 12603527, 49391, 999775A, 999775
Frequently Asked Questions
Is this the right Impala belt tensioner for a 2006-2011 Chevrolet Impala V6 3.5L or 3.9L?
Yes. Gates 38420 fits the 2006-2011 Chevrolet Impala with the V6 3.5L or the 3.9L, and the car takes one. Other vehicles are covered in the “Vehicles it fits” section.
Is this the Pontiac G6 belt tensioner for a 2006-2009 Pontiac G6 V6 3.9L?
Yes. This belt tensioner fits the 2006-2009 Pontiac G6 V6 3.9L and the 2007-2010 G6 V6 3.5L.
What are the main dimensions of this belt tensioner?
Gates 38420 has one flanged pulley with 6 V-ribbed grooves. Outside diameter is 74 mm (2.91 in), width is 26 mm (1.02 in) and the bearing bore is 17 mm (0.67 in).
What protects the internals of the Gates drive belt tensioner?
A patented labyrinth seal protects the internal components, and a patented vibration-damping system absorbs extreme vibration. The spring is a torsional round design.
Does Gates 38420 replace number 419-009?
Yes. 419-009 is one of the numbers this Gates 38420 tensioner replaces, along with 305383, 89383 and 12577764.
