hilmor Vacuum Pump 3 CFM, 1947970

$ 349.71

Score By Feature

Based on 110 ratings

Packaging

9.85

Giftable

9.68

Customer service

9.93

Value for money

9.68

OveReview Final Score

How Our Score Is Calculated

Product Description

A sloped and channeled housing makes it easy to change the oil, while the oil fill port is oversized to allow for faster and easier filling

The handle is equipped with two point hoists for hassle-free operation

An oil level sight glass that quickly indicates contamination and determines oil level

Pump is isolated from the system by a leak-proof blank-off valve, allowing you to measure vacuums accurately and change oil without losing air pressure

It can be used with the Hilmor HVAC/R Carrying Strap (Sold Separately)

Questions & Answers

Do you think that vacuum pump has two stages?

I believe that the 1948121 is a two-stage rotary vane.

What is the best way to clean a car using a 7 cfm vacuum pump?

There are more than enough features in that system to fit in a car. Additionally, a smaller, less expensive pump of 1 or 2 cfm can be used. Air conditioners with a capacity of 5 cfm and above are appropriate for residential and commercial properties.

Is my freeze dryer able to handle the 5 and 9 cfm units? My MOTORS must be at least 150 or better. How often do I need to change the mineral oil in the engine, and is it maintenance free?

In order to maintain an effective vacuum, oil needs to be changed occasionally when it becomes cloudy or discolored.

Is this oil leak because the Robinair gets stuck with no oil in it or is it because of a bad bearing?

The pump has never leaked so far, so far so good.

Selected User Reviews For hilmor Vacuum Pump 3 CFM, 1947970

It is a great pump, light and compact, and it My Wish List was on hold for awhile, so when the price of this pump dropped below $300, I snapped it up

5/5

Works GREAT - Thank you, Acer! If you use good APPION vacuum hoses, 5cfm is plenty of pump. **I have pulled my personal information, Under an hour, we can downsize a ton system down to 135 micron!.

Crosby Everett

| Nov 05, 2020

The best vacuum pump you can buy! With this pump I was able to reach a maximum vacuum of no less than 29

5/5

Since I used a gauge with a 2" graduating range, I cannot say exactly how much vacuum I achieved. A closed automotive system was accessed twice today, with an 8" thickness. A very nice, quiet, well-built engine with very little oil mist as soon as it starts up. The bag does come with a There is a high quality connection tree with all 3 standard sizes on the unit, and the blocking valve functions well. Also, a vacuum of maximum intensity was achieved in less than a.

Donald Baker

| Jun 11, 2021

A short review of the past few months

5/5

It was a little hesitant to buy a 3cfm vacuum considering all of my tech friends use 6 and up cfm devices. I'm a fan of Hilmore for sure because I Vacuumed a 5 ton system today in like 20 minutes with 1/4 in hoses

I only do residential work and I vacuum a lot.

Sarah Boyle

| Apr 10, 2021

This vacuum pump is ideal for air conditioning systems

5/5

This pump was supplied with oil, a strap, and a It is a very solid construction and the instructions are very clear.

Maria Duncan

| Apr 02, 2021

The best, but not the best

4/5

The Hilmor pumps we have are great, but my technicians and I feel that the JB pumps are more reliable. Our plan is to use this Hilmor as a back-up system in case one of our JBs goes bad.