Best Ac Vacuum Pump for R1234yf (2026): 4 Kits Compared
Four AC vacuum pump kits for R1234yf compared on flow, motor, gauge, hoses and safety features, with every figure taken from the listings.
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Top picks at a glance
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- 1
Best OverallBACOENG 5CFM Pump Kit9.6/10View on Amazon - 2
Best Overheat ProtectionOMT 4CFM Pump Kit9.6/10View on Amazon - 3
5 CFM AlternativeBACOENG R32 Pump Kit9.6/10View on Amazon - 4
Best Case PickVTG VOGTEN Pump Kit9.5/10View on Amazon - 5
Robinair 15500 VacuMaster Economy Vacuum Pump for AirView on Amazon - 6
PB Motor Tech 4.5 CFM Vacuum Pump with Brass Manifold GaugeView on Amazon - 7
Yellow Jacket YJII Vacuum Pump 5 CFMView on Amazon - 8
PB Motor Tech 4.5CFM Vacuum Pump with 3-Way Manifold GaugeView on Amazon - 9
Smoke Machine Automotive Built-in Air PumpView on Amazon
A car with weak cooling on a hot day often needs its AC system evacuated before a recharge, and that job starts with a pump and gauge set on the bench. This guide compares the best ac vacuum pump for r1234yf on flow, motor, gauge, hoses, adapters and safety features, using only what each listing states.
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Quick picks
- Best Overall BACOENG 5CFM Pump Kit: 5 CFM, sparkless motor and 3-way gauge kit Check price on Amazon
- Best Overheat Protection OMT 4CFM Pump Kit: Sparkless motor with overheat protection at 266°F Check price on Amazon
- 5 CFM Alternative BACOENG R32 Pump Kit: 5 CFM, sparkless motor and 3-way gauge kit Check price on Amazon
- Best Case Pick VTG VOGTEN Pump Kit: 4.5 CFM kit with leak detector and trifold case Check price on Amazon
Picks for the garage
BACOENG 5CFM 1/3HP AC Vacuum Pump and Gauge Set
A 5 CFM, 1/3 HP sparkless pump kit with a 3-way gauge, R1234yf adapters and 5-foot hoses for AC and mini split work.
Pros
- 5 CFM flow with a 1/3 HP copper motor
- Sparkless motor with an ignition-proof switch
- 3-way gauge with 800 psi working pressure
- R1234yf can taps and adapters included
Cons
- No warranty term is stated
- No leak detector listed in the kit contents
- No storage case listed
- 21.2 pounds to store and carry
OMT 4 CFM AC Vacuum Pump and Gauge Set for R454B
A 4 CFM, 1/3 HP sparkless pump kit with a 3-way gauge, leak detector and overheat protection for AC work.
Pros
- Sparkless motor with an ignition-proof switch
- Overheat protection that shuts off at 266°F
- Leak detector included in the kit
- Cooling fan, sight glass and bottom drain valve
Cons
- No warranty term is stated
- 4 CFM, lower than the 5 CFM BACOENG kits
- Title lists 4 color hoses while bullets list 3 hoses
- No hose length stated
BACOENG R32 AC Vacuum Pump and Gauge Set
A 5 CFM, 1/3 HP sparkless pump kit with a 3-way gauge, R1234yf adapters and 5-foot hoses for mini split work.
Pros
- 5 CFM flow with a 1/3 HP copper motor
- Sparkless motor with an ignition-proof switch
- 3-way gauge with 800 psi working pressure
- Size of 11.2 by 4.9 by 9.1 inches
Cons
- No warranty term is stated
- No leak detector listed in the kit contents
- Title lists R22 while bullets list R134a
- Weight of 21 pounds to store and carry
A2L R1234yf AC Vacuum Pump and Gauge Set
A 4.5 CFM, 1/3 HP single-stage pump kit with a 3-way gauge, leak detector and a trifold storage case for AC work.
Pros
- 4.5 CFM single-stage pump with copper construction
- Leak detector and trifold storage case included
- Four 5-foot color-coded hoses
- 600 psi working pressure with 3000 psi burst pressure
Cons
- No warranty term is stated
- No sparkless feature stated
- Package size of 14 by 12.4 by 8.4 inches
- Lists R1234yf, R404a and R134a only
Other tools worth a look
Robinair 15500 VacuMaster Economy Vacuum Pump for AirCheck price on Amazon
PB Motor Tech 4.5 CFM Vacuum Pump with Brass Manifold GaugeCheck price on Amazon
Yellow Jacket YJII Vacuum Pump 5 CFMCheck price on Amazon
PB Motor Tech 4.5CFM Vacuum Pump with 3-Way Manifold GaugeCheck price on Amazon
Smoke Machine Automotive Built-in Air PumpCheck price on Amazon
Compared on paper
| Pump | Shop Score | Flow | Motor | Gauge | Safety |
|---|---|---|---|---|---|
| BACOENG 5CFM Pump Kit | 9.6/10 | 5 CFM | 1/3 HP | 3-way | Sparkless switch |
| OMT 4CFM Pump Kit | 9.6/10 | 4 CFM | 1/3 HP | 3-way | Sparkless, overheat |
| BACOENG R32 Pump Kit | 9.6/10 | 5 CFM | 1/3 HP | 3-way | Sparkless switch |
| VTG VOGTEN Pump Kit | 9.5/10 | 4.5 CFM | 1/3 HP | 3-way | Not stated |
Specifications are manufacturer rated, as published on each listing and collected 28 October 2026.
How the points were given
Each pump is scored on performance, build, value, safety and warranty, with the weights published on our How We Pick page. A sparkless motor with an ignition-proof switch earns safety points, while a pump that states no safety feature scores zero on that line, whatever its flow. None of the four listings states a warranty term.
| Product | Shop Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| BACOENG 5CFM Pump Kit | 9.6 | 32 | 21 | 21 | 7 | 0 |
| OMT 4CFM Pump Kit | 9.6 | 28 | 21 | 20 | 8 | 0 |
| BACOENG R32 Pump Kit | 9.6 | 30 | 20 | 20 | 7 | 0 |
| VTG VOGTEN Pump Kit | 9.5 | 29 | 21 | 20 | 0 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
How to choose the best ac vacuum pump for r1234yf
Flow and motor
Flow sets how fast a pump pulls a system down, and all four pumps here use a 1/3 HP motor. The two BACOENG kits list 5 CFM, the VTG kit lists 4.5 CFM, and the OMT kit lists 4 CFM. All four listings describe a copper motor, so motor material does not separate this group, while flow does. The BACOENG kits also list a pulldown to 5 Pa, a figure the other kits do not list.
Gauge, hoses and adapters
Each kit includes a 3-way manifold gauge, but hose and pressure figures differ. The BACOENG kits list 5-foot hoses and a working pressure of 800 psi with a burst pressure of 4000 psi, while the VTG kit lists four 5-foot hoses and a working pressure of 600 psi with a burst pressure of 3000 psi. Check the can taps and adapters in each kit against the refrigerant you plan to service, since the kits list different adapter sets. If you are weighing stage types, see Single vs Two Stage Ac Vacuum Pump.
Safety features
Safety features are the clearest separator after flow. The BACOENG kits and the OMT kit list a sparkless motor with an ignition-proof switch, and the OMT kit adds overheat protection that shuts it off at 266°F. The VTG listing states no sparkless feature, so it scores zero on safety here, even though it lists a higher flow than the OMT kit. For A2L refrigerants, a sparkless design matters, so weigh that feature before flow alone.
Kit contents and storage
Kit contents differ beyond the pump and gauge. The OMT kit includes a leak detector, oil and a case and bag, while the VTG kit includes a leak detector, vacuum oil and a trifold storage case. The BACOENG kits list a handy hook for hanging the gauge, with no storage case listed. If you are comparing a recharge kit with a recovery machine, see AC Recharge Kit vs Recovery Machine.
Adapters and refrigerants
Adapter sets differ, so match them to the system you service. The BACOENG kits list R134a and R1234yf can taps, R134a quick couplers and R134a to R1234yf adapters, plus R410a adapters. The OMT kit lists an R1234yf can tap, R1234yf quick couplers, an R454B adapter and R410A adapters, while the VTG kit lists an R1234yf can tap, R134a can taps and R410a adapters.
Refrigerant coverage also differs. The BACOENG kits list R32, R1234yf, R134a and R410a, the OMT kit lists R454B, R1234yf, R32 and R410a, and the VTG kit lists R1234yf, R404a and R134a. Check the list for your refrigerant before ordering, since a kit that omits it will not cover that job.
Garage Fit Check
- Check bench space against the listed sizes: BACOENG 16.3 by 7.6 by 12.9 inches, BACOENG R32 11.2 by 4.9 by 9.1 inches, OMT 10.8 by 4.3 by 8.5 inches, and VTG package 14 by 12.4 by 8.4 inches.
- Check power: the BACOENG listings state 110V, while the OMT and VTG listings state no voltage figure in the data given.
- Check storage: the OMT kit includes a case and bag, the VTG kit includes a trifold storage case, and the BACOENG kits list a handy hook.
- Check adapters before the first job: all four kits list an R1234yf can tap, with different adapter sets for other refrigerants.
Use rated jack stands on solid ground, wear eye protection with power and air tools, keep fuel-burning equipment out of a closed garage, and follow the manual for every tool. Read our Safety Disclaimer.
FAQ: garage tools
Which pump here has the highest flow?
The two BACOENG kits list 5 CFM, followed by the VTG kit at 4.5 CFM and the OMT kit at 4 CFM.
Do all four kits include a leak detector?
No. The OMT and VTG kits list a leak detector, while the BACOENG kits do not list one in their kit contents.
Which refrigerants do these kits cover?
All four kits list R1234yf. The BACOENG kits also list R32, R134a and R410a, the OMT kit also lists R454B, R32 and R410a, and the VTG kit also lists R404a and R134a.
Can a single-stage pump handle this job?
The VTG listing states a single-stage pump at 4.5 CFM. The other listings state no stage figure, so compare them on flow and kit contents instead.
Related: the single vs two stage ac vacuum pump, the AC recharge kit vs recovery machine, our engine and shop equipment hub and our air compressors hub.
