Gates 38511 belt tensioner for the 2009 Freightliner Argosy truck and other vehicles holds the accessory drive belt at the right tension. A patented design keeps belt alignment and tension on target for drive efficiency and life.
- FleetRunner heavy-duty automatic belt drive tensioner
- Patented labyrinth seal that keeps contamination out of the internal parts
- Steel pulley with dust shields that protect the internal bearings from contamination
- Double row bearings that carry more load, with up to 3X the life of two individual bearings
- Chrome-silicone round torsion spring built for low flex-fatigue
- Patented damping mechanism for stability and less vibration in the belt, tensioner and other accessory drive parts
Quick facts
- Part: Gates 38511 belt tensioner
- Also called: serpentine belt tensioner
- Fits: 2009 Freightliner Argosy truck and other vehicles
- Position: air conditioning, fan and alternator
- Material: Steel
- Condition: New
A worn serpentine belt tensioner can show up as belt squeal, a glazed or frayed belt, or vibration from the belt drive. If the tensioner is the cause, this one replaces it; with the engine off and cool, start by looking over the belt and the tensioner pulley for cracks, uneven wear or play.
Fits
It fits the 2009 Freightliner Argosy truck, the 2008-2009 International/Navistar Paystar 5600I truck, the 1998-2005 Freightliner FS65 bus L6-7.2L, the 2006 FS65 bus and the 2007-2008 FS65 bus L6-7.2L, and more. The 2009 Freightliner Argosy truck takes one. If your truck or bus is not named here, look for it in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: air conditioning, fan and alternator
- Quantity per vehicle: 1
- Outside diameter: 75 mm (2.95 in)
- Bearing bore inside diameter: 30 mm (1.18 in)
- Width: 40 mm (1.57 in)
- Pulleys: 1
- Mounting holes: 1
- Belt type: V-ribbed
Build and materials
- Material: Steel
- Pulley: not flanged
- Contact surface: smooth/backside
- Condition: New
- Country of origin: Canada
In the box
One belt tensioner assembly and one bolt.
Interchange: GT38511 · 89408 · 1206659 · 1352151 · 2178938 · 87840057 · 89441 · 23550238 · 49509 · 1687819C91 · 2028958C93 · 3543883C1 · 910003A · VKM910009 · 910003
This part cross-references / interchanges with the following part numbers:
38511, GT38511, 89408, 1206659, 1352151, 2178938, 87840057, 89441, 23550238, 49509, 1687819C91, 2028958C93, 3543883C1, 910003A, VKM910009, 910003
Frequently Asked Questions
Does the Gates 38511 belt tensioner fit the 2009 Freightliner Argosy truck?
Yes. The Gates 38511 fits the 2009 Freightliner Argosy truck, which takes one. Look for other trucks and buses in the "Vehicles it fits" section on this page.
Does the Gates 38511 come with its mounting bolt?
Yes. The Gates 38511 comes as one tensioner assembly and one bolt. Nothing else is listed in the box.
What size is the pulley on this Gates drive belt tensioner?
The pulley is 75 mm (2.95 in) in outside diameter and 40 mm (1.57 in) wide, with a 30 mm (1.18 in) bearing bore. It is built for a V-ribbed belt and has a smooth/backside contact surface.
How does the labyrinth seal on this FleetRunner tensioner work?
The patented labyrinth seal keeps contamination out of the internal parts. The steel pulley also has dust shields that protect the internal bearings from contamination.
Can I keep driving with a worn belt tensioner?
Have it checked or replaced promptly rather than driving on it. If the belt slips or comes off, the accessories it drives, such as the alternator, can stop working.
