# Balmar Alternator 120 AMP 12V 4" Dual Foot Saddle K6 Pulley w/Isolated Ground [604-120-K6]

**Alternator 120 AMP 12V 4" Dual Foot Saddle K6 Pulley with Isolated Ground**

Alternator, 604 Series, 120A, 12V, Saddle Mount (Dual Foot), 4in, K6 Serpentine Pulley, Isolated Ground 4" J-180-Style Mounting;  Typical for Caterpillar, Cummins, Detroit Diesel & John Deere Engines

Replaces: 604-120-SR-IG

**This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.**

**Specifications:**

-   Amperage: 120A
-   Voltage: 12v
-   Box Dimensions: 9"H x 9"W x 10"L WT: 13.35 lbs
-   UPC: 676205750615

  
[Brochure (pdf)](https://productimageserver.com/literature/brochure/97453BR.pdf)

## Details

- **Price:** 904.69 USD
- **Type:** Alternators
- **Tags:** Brand_Balmar, Engine Parts & Service, Engine Parts & Service | Alternators

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 904.69 USD | In stock |

## Images

- Balmar Alternator 120 AMP 12V 4" Dual Foot Saddle K6 Pulley w/Isolated Ground [604-120-K6] Balmar

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> Source: [Besafe1st](https://besafe1st.com/products/balmar-alternator-120-amp-12v-4-dual-foot-saddle-k6-pulley-w-isolated-ground-604-120-k6)
> Updated: 2026-05-22