/live/media/WW/WW_6490N_Fro.jpg)
Will it fit your vehicle?
Confirm before you buy. Free return shipping if it doesn't fit.
WAI 6490N Starter
| Brand | WAI 6490N |
|---|---|
| 12 | 12 |
| Design | Permanent magnet gear reduction |
| Family | Delco |
| Power Rating | 1.6 |
| Starter Rotation | Clockwise (right) |
| Tooth Quantity | 11 |
| Mounting Type | Flange |
| Fits | Buick, Chevrolet, GMC, Isuzu, and Oldsmobile · 12 vehicles |
100% new construction. Not remanufactured, with proprietary components and processes.
Permanent magnet gear reduction. Delivers strong starting power in a compact starter design.
Flange mount design. A straightforward starter replacement with secure installation.
Cross-references AMS Automotive 6499, BBB Industries 6490 and 89-01-7557 for the same application. See all 21.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Starter for GM 4.2L Applications
WAI 6490N is a new starter built for vehicles that need reliable cranking power and consistent amp output. This permanent magnet gear reduction starter uses a clockwise rotation and a flange mount design for direct-fit service on select GM applications.
Key Features
- 100% new starter, not remanufactured
- Permanent magnet gear reduction design for efficient starting performance
- Clockwise (right) rotation
- 11-tooth drive configuration
- 1.6 kW power rating
- Flange mounting type
- DELCO family application
Product Details
Built by WAI, part number 6490N is engineered to deliver the amp output needed for modern starting systems. The new-unit construction uses proprietary components and manufacturing processes to support long service life and dependable performance. This starter is a direct replacement for select Buick Rainier, Chevrolet Trailblazer, Chevrolet Trailblazer EXT, GMC Envoy, GMC Envoy XL, Isuzu Ascender, and Oldsmobile Bravada models listed below.
This part cross-references BBB Industries 6490 for the same application.
Vehicle Fitment
- Fits 2004 Buick Rainier, N/A
- Fits 2002-2003 Chevrolet Trailblazer, N/A
- Fits 2002-2003 Chevrolet Trailblazer EXT, N/A
- Fits 2002-2003 GMC Envoy, N/A
- Fits 2002-2003 GMC Envoy XL, N/A
- Fits 2003 Isuzu Ascender, N/A
- Fits 2002-2003 Oldsmobile Bravada, N/A
Common Replacement Reasons
- Engine cranks slowly or intermittently
- Starter clicks but does not engage
- No-crank condition with a charged battery
- Worn starter drive or internal electrical failure
- Starting performance issues on GM SUV applications
Installation Notes
Verify the starter rotation, tooth count, mounting style, and electrical connection before installation. Confirm vehicle fitment by year, make, and model, especially on Buick Rainier, Chevrolet Trailblazer, and GMC Envoy applications. Inspect battery condition, cables, and charging-system output during replacement to avoid repeat starting problems.
Quality Assurance
WAI manufactures this starter as a new replacement unit using proprietary components and processes to support durability and consistent operation. Part number 6490N is built for dependable starting performance in the listed applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2004 | Buick | Rainier | 4.2L | L6 | N/A | — |
| 2003 | Chevrolet | Trailblazer | — | — | N/A | — |
| 2003 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | — |
| 2003 | GMC | Envoy | — | — | N/A | — |
| 2003 | GMC | Envoy XL | 4.2L | L6 | N/A | — |
| 2003 | Isuzu | Ascender | 4.2L | L6 | N/A | — |
| 2003 | Oldsmobile | Bravada | — | — | N/A | — |
| 2002 | Chevrolet | Trailblazer | — | — | N/A | — |
| 2002 | Chevrolet | Trailblazer EXT | — | — | N/A | — |
| 2002 | GMC | Envoy | — | — | N/A | — |
| 2002 | GMC | Envoy XL | — | — | N/A | — |
| 2002 | Oldsmobile | Bravada | — | — | N/A | — |
| No rows match your filter. | ||||||