VIAIR 45157
- Air
- DC
- 13 pounds
- 12 volts
- Better rated than 69%
A 12-volt VIAIR compressor wired through an SAE connector rather than a lighter plug, weighing 13 pounds, best suited to a fixed vehicle mount.
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How it ranks among the 94 airs we track
4.6★ across 23 Amazon ratings, Bayesian-smoothed toward the category average.
23 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
100+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 94 airs we track - how the scorecard works · full airs data report. Confidence: limited - limited rating history.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A 12-volt DC air compressor from VIAIR, model 45157, powered through an SAE connector rather than a cigarette-lighter plug, weighing about 13 pounds.
An SAE connector usually points to a compressor wired into a vehicle's electrical system for a semi-permanent mount, unlike lighter-plug units meant to be tossed in a glovebox. VIAIR is an established name in vehicle air compressors, though this listing does not publish CFM or PSI output figures. At 13 pounds it is heavier than a typical portable inflator, consistent with a fixed-mount design.
- Power source: 12V DC SAE
- Voltage: 12 volts DC
- Item weight: 13 pounds
- Brand: VIAIR
Who it's for
Fits vehicle owners who want a wired-in 12-volt air source for tires or an air-ride setup. Not the right pick for someone wanting a plug-and-go unit with a lighter plug, since this uses an SAE connection.
Strengths and trade-offs
Drawn from this product's published specifications.
- SAE connector suits a wired-in vehicle setup
- VIAIR is an established compressor brand
- No CFM or PSI output listed
- Heavier than typical portable inflators at 13 pounds
Performance notes
Power comes through a 12-volt DC SAE connection rather than a lighter plug, and at 13 pounds the unit runs heavier than typical portable inflators, in line with a compressor meant for a fixed mount rather than a glovebox kit.
Specifications
| Brand | VIAIR |
|---|---|
| Model | 45157 |
| Power Source | DC |
| Item Weight | 13 pounds |
| Voltage | 12 volts |
Other VIAIR airs
How it compares
This product against the closest alternatives we track in airs.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| VIAIR 45157This product | 4.6 / 5 | 23 | 2.7 / 5 |
| DEWALT DCC020IB AirDeWalt | 4.6 / 5 | 18,000 | 4.6 / 5 |
| OlarHike TIC3V401 AirOlarHike | 4.5 / 5 | 5,100 | 4.5 / 5 |
| Xiaomi BHR7112GL AirXiaomi | 4.6 / 5 | 8,236 | 4.4 / 5 |
| Bostitch BXCM02012-WPK AirBOSTITCH | 4.7 / 5 | 1,900 | 4.3 / 5 |
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Questions about the VIAIR 45157
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How is this compressor powered?
12-volt DC through an SAE connector.
How much does it weigh?
13 pounds.
Does it come with a cigarette-lighter plug?
The listed spec is an SAE connector, not a lighter plug.