# WAI Global 7860-3N Alternator for 1987-1994 Chevy S-10 Blazer

### Specifications

-   Amperage Rating: 105 A
-   Decoupled Or Clutch Pulley: No
-   Family: DELCO
-   Fan Type: External
-   Pulley Belt Type: Serpentine
-   Pulley Groove Quantity: 6
-   Pulley Included: Yes
-   Regulator Type: Internal
-   Rotation Direction: Clockwise (Right)
-   Voltage: 12 VDC

### Features

-   Elaborately designed to provide just enough power
-   Identical in specifications to the factory alternator
-   Made to comply with strict OE quality requirements
-   Enables precise fit and offers dependable operation

### Product Details

Alternator (7860-3N) by WAI Global®. Current: 105 Amp. With 6 Groove Pulley. Plug Position: 03:00 O'Clock. Rotation: Clockwise. Voltage: 12V. Is the performance of your vehicle affected by the power outage? It may be time to replace your old alternator. This premium factory-style alternator is designed to stringent OEM standards to fit, look, and function just like the original part. Made with proven technology and tried-and-true equipment, it guarantees to deliver reliable long-term performance.

Brand: WAI Global

Part Number: 7860-3N

UPC: 609843013316

Alternate MPN: 78603N

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1987

Chevy

S-10 Blazer

1988

Chevy

S-10 Blazer

1989

Chevy

S-10 Blazer

1987

Chevy

S-10 Pickup

1988

Chevy

S-10 Pickup

1989

Chevy

S-10 Pickup

1990

Chevy

S-10 Pickup

1991

Chevy

S-10 Pickup

1992

Chevy

S-10 Pickup

1993

Chevy

S-10 Pickup

1987

GMC

Jimmy

1988

GMC

Jimmy

1989

GMC

Jimmy

1987

GMC

Sonoma

1988

GMC

Sonoma

1989

GMC

Sonoma

1990

GMC

Sonoma

1991

GMC

Sonoma

1992

GMC

Sonoma

1993

GMC

Sonoma

1991

Isuzu

Pick Up

1992

Isuzu

Pick Up

1993

Isuzu

Pick Up

1994

Isuzu

Pick Up

1991

Isuzu

Rodeo

1992

Isuzu

Rodeo

1989

Isuzu

Trooper

1990

Isuzu

Trooper

1991

Isuzu

Trooper

1987

Pontiac

Fiero

1988

Pontiac

Fiero

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, and any fitment notes using the Vehicle Fitment Table above before purchase.

**What part number is this?**  
The listed part number is 7860-3N.

**Is this product designed for direct replacement?**  
Yes. This product is intended to match the compatible vehicle applications listed in the fitment table.

**Should I confirm fitment before ordering?**  
Yes. Always compare your original part, position, and vehicle details with the fitment table before ordering.

### Common Searches

-   Alternator for Chevy S-10 Blazer
-   7860-3N fitment
-   WAI Global Alternator
-   1987 Chevy S-10 Blazer Alternator

## Details

- **Price:** 253.25 CAD
- **Vendor:** WAI Global
- **Type:** Alternator
- **Tags:** 1987-1988 Pontiac Fiero, 1987-1989 Chevy S-10 Blazer, 1987-1989 GMC Jimmy, 1987-1993 Chevy S-10 Pickup, 1987-1993 GMC Sonoma, 1989-1991 Isuzu Trooper, 1991-1992 Isuzu Rodeo, 1991-1994 Isuzu Pick Up, 7860-3N, Alternator, Automotive, WAI Global

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 253.25 CAD | In stock |

## Images

- WAI Global 7860-3N Alternator for 1987-1994 Chevy S-10 Blazer

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/wai-global-7860-3n-alternator)
> Updated: 2026-08-11