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Dayco 89049 Accessory Drive Belt Idler Pulley - Air Conditioning or Grooved Pulley
| Brand | Dayco 89049 |
|---|---|
| Position | Air Conditioning |
| 20.3 | |
| 80 | |
| Bearing Inner Diameter 1 | 17 |
| Bearing Width | 12 |
| Belt Type | Serpentine |
| Groove Quantity | 4 |
| Material | Steel |
| Max Belt Width | 04 Rib |
| Number of Bearings | 1 |
| Fits | Mercury, Nissan, and Ford · 28 vehicles |
Steel construction. Provides durable support for the accessory drive belt system.
Serpentine belt pulley. Built for smooth belt tracking in the drive system.
Single-bearing design. Helps keep rotation steady and efficient.
Cross-references ACDelco 38044, CARQUEST 38044 and Datsun/Nissan 11925-1B010 for the same application. See all 16.
Dayco 89049 Accessory Drive Belt Idler Pulley
The Dayco 89049 accessory drive belt idler pulley is built for serpentine belt systems that require a grooved pulley with stable belt tracking. With a steel construction, 4-groove design, and one bearing assembly, it supports accessory drive routing on select Ford, Mercury, and Nissan applications.
- Steel pulley construction for durable accessory drive service
- 4-groove design for 4-rib serpentine belt routing
- Single bearing design with 17 mm inner diameter and 12 mm bearing width
- Grooved pulley profile for belt alignment in accessory drive systems
- Direct replacement style for select air conditioning and grooved pulley applications
Fitment and application details
Compatible With select 1993-2002 Mercury Villager air conditioning applications, 2002 Nissan Quest air conditioning applications, 1998-2001 Nissan Altima air conditioning applications, 1993-2001 Nissan Quest grooved pulley applications, and 1994-1997 Ford Aspire with dealer air. Fits 1993-2002 Mercury Villager, Air Conditioning. Fits 2002 Nissan Quest, Air Conditioning. Fits 1998-2001 Nissan Altima, Air Conditioning. Fits 1993-2001 Nissan Quest, Grooved Pulley. Fits 1994-1997 Ford Aspire, N/A.
This part cross-references Gates 38044 and Dorman 419-626 for the same application. The Dayco 89049 part number is also a useful reference when matching accessory drive belt idler pulley specifications across OE-style replacement catalogs.
What this pulley helps address
- Belt noise caused by a worn idler pulley bearing
- Serpentine belt tracking issues from pulley wear
- Accessory drive vibration related to pulley surface damage
- Air conditioning belt routing problems on listed vehicles
- Grooved pulley wear that can affect belt contact
Installation notes and tips
Verify pulley groove count, belt type, and bearing dimensions before installation. Match the Dayco 89049 to the original pulley location and confirm application details for Mercury Villager, Nissan Quest, Nissan Altima, and Ford Aspire models listed above. Inspect the serpentine belt and adjacent accessory drive components for wear before returning the vehicle to service.
Quality assurance
Dayco manufactures accessory drive components for OE-style replacement use, with attention to pulley material, bearing sizing, and belt alignment requirements. The 89049 is specified with steel construction, one bearing, and a 4-rib serpentine belt profile for the listed applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2002 | Mercury | Villager | Air Conditioning | — |
| 2002 | Nissan | Quest | Air Conditioning | — |
| 2001 | Mercury | Villager | Air Conditioning | — |
| 2001 | Nissan | Altima | Air Conditioning | — |
| 2001 | Nissan | Quest | Grooved Pulley | — |
| 2000 | Mercury | Villager | Air Conditioning | — |
| 2000 | Nissan | Altima | Air Conditioning | — |
| 2000 | Nissan | Quest | Grooved Pulley | — |
| 1999 | Mercury | Villager | Air Conditioning | — |
| 1999 | Nissan | Altima | Air Conditioning | — |
| 1999 | Nissan | Quest | Grooved Pulley | — |
| 1998 | Mercury | Villager | Air Conditioning | — |
| 1998 | Nissan | Altima | Air Conditioning | — |
| 1998 | Nissan | Quest | Grooved Pulley | — |
| 1997 | Ford | Aspire | N/A | with Dealer Air |
| 1997 | Mercury | Villager | Air Conditioning | — |
| 1997 | Nissan | Quest | Grooved Pulley | — |
| 1996 | Ford | Aspire | N/A | with Dealer Air |
| 1996 | Mercury | Villager | Air Conditioning | — |
| 1996 | Nissan | Quest | Grooved Pulley | — |
| 1995 | Ford | Aspire | N/A | with Dealer Air |
| 1995 | Mercury | Villager | Air Conditioning | — |
| 1995 | Nissan | Quest | Grooved Pulley | — |
| 1994 | Ford | Aspire | N/A | with Dealer Air |
| 1994 | Mercury | Villager | Air Conditioning | — |
| 1994 | Nissan | Quest | Grooved Pulley | — |
| 1993 | Mercury | Villager | Air Conditioning | — |
| 1993 | Nissan | Quest | Grooved Pulley | — |
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