When upgrading central vacuums, boat lifts, or industrial cleaning systems, a reliable 2-stage vacuum motor is essential. This guide highlights top 2-stage vacuum motors from trusted brands, focusing on strong suction, durability, and energy efficiency. Below you’ll find five proven options with practical details to help you compare performance and compatibility at a glance.
| Brand | Model | Key Features |
|---|---|---|
| Ametek | 120V Vacuum Motor, 2 Stage, 5.7″ Dia 116336-01 | 84.3 CFM, peripheral discharge, 8.0 amps |
| VTNPQ | 116392-00/116392-01 Vacuum Motor Replacement | 2-stage, high power, quiet operation |
| Anrain | 116392-00 116392-01 Vacuum Motor | 1000W copper motor, 65dB noise, long life |
| ZGTools | 116336-01 / 116336-00 Vacuum Motor | Wide compatibility, quiet operation |
| Atsmk | 116336-01, 116336-00 120V Vacuum Motor | High efficiency, low noise, strong suction |
Ametek 120V Vacuum Motor, 2 Stage, 5.7″ Dia 116336-01

The Ametek 116336-01 combines a compact 5.7-inch diameter with a robust 2-stage configuration designed for central vacuums and small commercial units. Rated at 120V and 8.0 amps, it delivers about 84.3 CFM of airflow with a peripheral discharge—helpful for installations prioritizing space and noise management. Its dual-stage design aims to balance power with efficiency across typical domestic and light-industrial cleaning tasks. This model is commonly chosen for replacing OEM parts in compatible systems.
VTNPQ 116392-00/116392-01 Vacuum Motor Replacement

This VTNPQ replacement is designed to fit 116392-00 and 116392-01 OEM part numbers, offering a high-power, two-stage 120V motor suitable for central vacuum systems, boat lifts, and industrial cleaning. It emphasizes strong suction and reliable operation while maintaining quieter performance. The design focuses on compatibility and dependable restoration of vacuum capabilities in existing units without extensive modifications.
Anrain 116392-00 116392-01 Vacuum Motor

The Anrain 116392-00 model features a 1000W all-copper motor paired with a 2-stage design, delivering strong suction suitable for commercial canisters, central vac installations, and marine lifts. The unit emphasizes quiet operation, with a spiral outlet and isolation cover to reduce noise to around 65dB, plus anti-vibration brackets to dampen structural noise by a substantial margin. Designed for durability, it aims for a long service life in demanding environments.
ZGTools 116336-01 Vacuum Motor

The ZGTools 116336-01 is designed as a broad compatibility 2-stage vacuum motor. It supports multiple related models and replacement parts, making it a flexible option for central vacuums and similar systems. The motor emphasizes quiet operation and energy efficiency while delivering solid suction performance for a range of residential and light commercial tasks. It is built with copper windings and a cooling feature to help manage heat during extended runs.
Atsmk 116336-01, 116336-00 Vacuum Motor

The Atsmk model line offers a high-efficiency 5.7-inch, 2-stage vacuum motor designed for compatibility with common central vacuum parts such as 56207802 and 44903A. It promises strong suction, efficient energy use, and low-noise operation—ideal for both home and light commercial cleaning tasks. The replacement is pitched as a seamless fit for many popular vacuum units, reducing the need for full motor replacements.
Buying Guide: Key Purchase Considerations
- Compatibility: Confirm OEM part numbers and model compatibility with your existing system before purchase. Look for replacement motors that list the exact model or a close cross-reference.
- Stage Design and Airflow: A 2-stage motor generally provides stronger suction at higher efficiency than single-stage units. Compare CFM ratings and noise targets to fit your environment.
- Power and Voltage: Most 2-stage vacuum motors here run at 120V. Ensure your power supply matches the motor’s voltage and current requirements to prevent overheating or poor performance.
- Noise Level: For residential or noise-sensitive settings, prioritize models with low dB ratings and anti-vibration features to minimize disruption during operation.
- Durability and Materials: Copper windings, robust stators, and high-quality bearings contribute to longer motor life. Look for parts designed for continuous operation in industrial or marine environments.
- Maintenance and Installation: Consider gaskets, mounting brackets, and cooling features included with the motor. Ease of installation can reduce downtime and improve long-term reliability.
- Replacement vs. New Unit: If your current system is aging, evaluate whether a direct replacement motor offers a quicker, cost-effective fix versus replacing the entire assembly.
Additional Perspectives
When evaluating 2-stage vacuum motors, consider not only peak suction but also sustained performance under load. A motor with efficient cooling can maintain stable airflow over longer cleaning cycles, which benefits central systems and heavy-duty tasks. For marine lifts and industrial cleaning, durability under vibration and exposure to moisture can be decisive. If you have limited space, a motor with a compact footprint and peripheral discharge can ease integration. Always verify any needed gaskets or mounting hardware are included or readily available.