# 6603ASJ Professional Aluminum 3 Ton Service Jack vs B6350 Fast Lift Service Jack: specs and price compared

A sourced, side-by-side comparison of the 6603ASJ Professional Aluminum 3 Ton Service Jack (Sunex) and B6350 Fast Lift Service Jack (Blackhawk Automotive) among floor jacks.

## Side by side

| Spec | 6603ASJ Professional Aluminum 3 Ton Service Jack | B6350 Fast Lift Service Jack |
| --- | --- | --- |
| US price | not published | $206.2 |
| Brand | Sunex | Blackhawk Automotive |
| Lifting capacity tons | 3 | 3.5 |
| Min lift height (in) | 3.8 | 5.5 |
| Max lift height (in) | 20 | 22 |
| Weight (lb) | 58 | — |
| Frame material | aluminum | steel |
| Lift speed strokes | 6 | — |
| Saddle diameter (in) | 4.5 | 4 |
| Warranty years | 1 | — |

## Key differences

- Lifting capacity tons: 6603ASJ Professional Aluminum 3 Ton Service Jack 3 vs B6350 Fast Lift Service Jack 3.5
- Min lift height (in): 6603ASJ Professional Aluminum 3 Ton Service Jack 3.8 vs B6350 Fast Lift Service Jack 5.5
- Max lift height (in): 6603ASJ Professional Aluminum 3 Ton Service Jack 20 vs B6350 Fast Lift Service Jack 22
- Frame material: 6603ASJ Professional Aluminum 3 Ton Service Jack aluminum vs B6350 Fast Lift Service Jack steel
- Saddle diameter (in): 6603ASJ Professional Aluminum 3 Ton Service Jack 4.5 vs B6350 Fast Lift Service Jack 4

## Sources

- 6603ASJ Professional Aluminum 3 Ton Service Jack: https://www.mrosupply.com/material-handling/6286883_6603asj_sunex-tools/ (mrosupply.com, verified 2026-08-01)
- B6350 Fast Lift Service Jack: https://www.autozone.com/p/blackhawk-automotive-floor-jack-b6350/344792 (autozone.com, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/floor-jacks/sunex-6603asj-vs-blackhawk-b6350/
Cite: Per The Front Desk Review, 6603ASJ Professional Aluminum 3 Ton Service Jack (not published) vs B6350 Fast Lift Service Jack ($206.2) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/floor-jacks/sunex-6603asj-vs-blackhawk-b6350/
License: CC BY 4.0.