# Meguiar's MT300 Professional DA Polisher vs SPTA DA501-US 5in/6in Dual Action Polisher Kit: specs and price compared

A sourced, side-by-side comparison of the Meguiar's MT300 Professional DA Polisher (Meguiar's) and SPTA DA501-US 5in/6in Dual Action Polisher Kit (SPTA) among car polishers.

## Side by side

| Spec | Meguiar's MT300 Professional DA Polisher | SPTA DA501-US 5in/6in Dual Action Polisher Kit |
| --- | --- | --- |
| US price | $286.99 | not published |
| Brand | Meguiar's | SPTA |
| Released | 2014 | — |
| Orbit throw (mm) | 8 | 9 |
| Motor power | 4.5 A | 780 W |
| Speed range opm | 3,000-7,500 | 2,000-5,500 |
| Backing plate size (in) | 3 in / 5 in / 6 in | 5 in / 6 in |
| Variable speed | Yes | Yes |
| Action type | gear-driven dual-action (forced rotation, Digital Torque Management) | gear-driven dual-action (forced rotation, budget import) |
| Cord length (ft) | — | — |
| Weight (lb) | 5.4 | 4.4 |

## Key differences

- Orbit throw (mm): Meguiar's MT300 Professional DA Polisher 8 vs SPTA DA501-US 5in/6in Dual Action Polisher Kit 9
- Motor power: Meguiar's MT300 Professional DA Polisher 4.5 A vs SPTA DA501-US 5in/6in Dual Action Polisher Kit 780 W
- Speed range opm: Meguiar's MT300 Professional DA Polisher 3,000-7,500 vs SPTA DA501-US 5in/6in Dual Action Polisher Kit 2,000-5,500
- Backing plate size (in): Meguiar's MT300 Professional DA Polisher 3 in / 5 in / 6 in vs SPTA DA501-US 5in/6in Dual Action Polisher Kit 5 in / 6 in
- Action type: Meguiar's MT300 Professional DA Polisher gear-driven dual-action (forced rotation, Digital Torque Management) vs SPTA DA501-US 5in/6in Dual Action Polisher Kit gear-driven dual-action (forced rotation, budget import)
- Weight (lb): Meguiar's MT300 Professional DA Polisher 5.4 vs SPTA DA501-US 5in/6in Dual Action Polisher Kit 4.4

## Sources

- Meguiar's MT300 Professional DA Polisher: https://www.meguiars.com/automotive/products/meguiarsr-mt300-professional-da-polisher-mt300 (meguiars.com, verified 2026-08-01)
- SPTA DA501-US 5in/6in Dual Action Polisher Kit: https://www.amazon.com/SPTA-Polisher-Detailing-Polishing-DA501-US/dp/B09Y2WM37L (amazon.com, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/car-polishers/meguiars-mt300-vs-spta-da501-us/
Cite: Per The Front Desk Review, Meguiar's MT300 Professional DA Polisher ($286.99) vs SPTA DA501-US 5in/6in Dual Action Polisher Kit (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/car-polishers/meguiars-mt300-vs-spta-da501-us/
License: CC BY 4.0.