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Meguiar's
Meguiar's MT300 Professional DA Polisher
$286.99
Released 2014
Best Car Polishers · head-to-head
Meguiar's MT300 Professional DA Polisher vs SPTA DA501-US 5in/6in Dual Action Polisher Kit
A sourced, side-by-side comparison. Meguiar's MT300 Professional DA Polisher is cheaper at $286.99. Every spec and price links to its source.
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SPTA
SPTA DA501-US 5in/6in Dual Action Polisher Kit
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Which is better: the Meguiar's MT300 Professional DA Polisher or SPTA DA501-US 5in/6in Dual Action Polisher Kit?
The SPTA DA501-US 5in/6in Dual Action Polisher Kit wins 1 of the 1 specs we compare head to head; the other wins 0.
See Meguiar's MT300 Professional DA Polisher on Amazon Check SPTA DA501-US 5in/6in Dual Action Polisher Kit price
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Meguiar's MT300 Professional DA Polisher | SPTA DA501-US 5in/6in Dual Action Polisher Kit |
|---|---|---|
| US price | $286.99 | — |
| 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 |
Sources — Meguiar's MT300 Professional DA Polisher: meguiars.com (verified 2026-08-01). SPTA DA501-US 5in/6in Dual Action Polisher Kit: amazon.com (verified 2026-08-01).
What's the difference between the Meguiar's MT300 Professional DA Polisher and SPTA DA501-US 5in/6in Dual Action Polisher Kit?
Where the two actually differ on the specs we track (6 of 8). Matching specs are omitted.
- 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