Search  for anything...
Orion Motor Tech

OMT 3.5cfm Vacuum Pump, 1 Stage HVAC Vacuum Pump for R12 R22 R134a R410a Systems, Small 1/4hp 38 Micron Vacuum Pump for Air Conditioner Servicing Resin Degassing and More, Oil Included

    • Based on 961 reviews
Condition: New
Checking for product changes
$69.99 Why this price?
Save $107.66 was $177.65

Buy Now, Pay Later

As low as $11.67 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Thursday, May 23
Order within 9 hours and 10 minutes
Available payment plans shown during checkout

Size: 3.5 CFM


Color: Grey


Features

  • PUMP IT OUT: This single-stage rotary vane vacuum pump from Orion Motor Tech is powered by a 1/4 hp all copper motor to keep your HVAC servicing fast and easy; its 3.5 cfm flow rate can draw your system down as low as 37.5 microns (5 Pa) and is also able to quickly degas batches of resin, epoxy, oil, and other solvents when equipped with a vacuum chamber
  • USER FRIENDLY: The 7.6 fl. oz. reservoir includes a sight glass and scale for easy monitoring of the pump's oil level and quality; the light weight and sturdy handle keep everything easily portable for transport or storage between jobs; and 1/4" and 3/8" ports allow fast and easy servicing of automotive and other low-tonnage R12, R22, R134a, and R410a systems
  • HELPFUL ACCESSORIES: This vacuum pump kit comes with the necessary lubricating and absorptive oil provided, along with a funnel and one-size-fits-most gloves for quick and clean replacement when needed; an adapter also allows use with 1/2" hoses
  • GUARANTEED SATISFACTION: Get right to work evacuating and recharging your HVAC systems with this air conditioner vacuum pump, reassured by its strong 1 year warranty and Orion Motor Tech's usual friendly 24/7 customer service!

Manufacturer: ‎Orion Motor Tech


Brand: ‎Orion Motor Tech


Item Weight: ‎15.47 pounds


Package Dimensions: ‎15.63 x 12.44 x 7.01 inches


Country of Origin: ‎China


Manufacturer Part Number: ‎FBA-VPHA001LB


Special Features: ‎Wide Application, Efficient, Safe, Low Noise


Wattage: ‎186 watts


Date First Available: November 23, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great little vacuum.
Size: 3.5 CFM Color: Grey
I am not an HVAC guy but decided to install a couple mini split ac units in my shop so I ordered this pump. I let it run for an hour per unit pulling a vacuum prior to charging the system. It did a great job without over heating.
Reviewed in the United States on November 3, 2023 by Dean K.
    • Nice pump, confusing fitting sizes
Size: 4.5 CFM Color: Red
Review Image by Sfrank Sfrank
Review Image by Sfrank Sfrank
Review Image by Sfrank Sfrank
Review Image by Sfrank Sfrank
Review Image by Sfrank Sfrank
Review Image by Sfrank Sfrank
The pump is a fair price and it works quite well. However the manual and description isn't very clear when it comes to the sizes of the hoses that can connect to the pump. I did quite a bit of searching and found that this is the male thread OD and thread pitch (tpi) for different flare fittings: 1/4" SAE Flare - 7/16-20 tpi 5/16" SAE Flare - 1/2-20 tpi 3/8" SAE Flare - 5/8-18 tpi 1/2" SAE Flare - 3/4-16 tpi And the ACME fitting for R134A is a non standard ACME that is 1/2" diameter and 16 tpi (standard 1/2" ACME is 1/2" 10 tpi) The image included in the Amazon listing and the manual for this item show: Front fitting: 3/8" male Top fitting: 1/4" male Adapter fitting: 1/2" male However when I measured these fittings with a caliper and a thread gauge I got (see attached photos): Front fitting: 1/2" diameter - 16 tpi (ACME R134A) (manufacturer says this is 3/8") Top fitting: 7/16" diameter - 20 tpi (1/4" SAE flare) (manufacturer says this is 1/4") Adapter fitting: 1/2" diameter 20 tpi (5/16" SAE flare) (manufacturer says this is 1/2") 1/4" SAE flare is what is found on many manifold gauge set hoses, so this is normal to find on a vacuum pump. The ACME fitting is also typically found on vacuum pumps (like the Harbor Freight vacuum pump). The 5/16" SAE flare is the size typically found on many mini-split service ports. Another confusing thing is that the manual says to fill with oil "until the reservoir window is completely covered". Yet the sight glass clearly has a min and max mark and the max is not at the very top of the glass. I emailed the manufacturer and they did say to fill between the min and max and not to the top of the sight glass. ... show more
Reviewed in the United States on June 26, 2023 by Sfrank Sfrank
    • Pulls a vacuum fast
Size: 4.5 CFM Color: Red
Works great for automotive AC work. It got to -30 in only a couple of minutes and pegged the high side gauge as well.
Reviewed in the United States on October 27, 2023 by Dane
    • It's very heavy, shop or home use
Size: 4.5 CFM Color: Red
The quality and material good, great value for your money, it fit auto and home units. No cleaning required.
Reviewed in the United States on October 19, 2023 by Larry Thomas
    • Worked well for mini split install
Size: 4.5 CFM Color: Red
Nothing special but works well for mini split install so if you can get it for a good price it is worth it
Reviewed in the United States on September 24, 2023 by n j
    • No complaints
Size: 4.0 CFM Color: Grey
Performs as expected no complaints so far, very happy with products
Reviewed in the United States on October 22, 2023 by Kapwelljr
    • Value for your money
Size: 3.5 CFM Color: Grey
Review Image by John Kissoon John Kissoon
Worked really well
Reviewed in the United States on October 23, 2023 by John Kissoon John Kissoon
    • Excelentemente bueno
Size: 3.5 CFM Color: Grey
Todo me agrado,lo utilize para hacerle vacío al aire de mi chrysler town & country
Reviewed in the United States on October 7, 2023 by Efrain Mercado

Can't find a product?

Find it on Amazon first, then paste the link below.