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VIAIR 440P Portable Compressor (part 44043)
Model: 440P / 44043 · US configuration
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The 440P / 44043 is a 12V direct-clamp kit with a 25-foot 5-in-1 inflator/deflator hose and manual pressure control. Manufacturer fill-rate wording is a specific 37-inch, 0-to-30-PSI scenario, not a general guarantee.
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Assessment scenario: 12V direct-clamp tire service with a long manual-control hose
Assessment scenario for the 440P / 44043 when a suitable 12V direct-battery arrangement, a 25-foot inflator/deflator hose and operator-managed tire pressure are acceptable. It does not establish compatibility with a specific vehicle, tire or seller package.
Explore this buying guide ↗Why consider this model?
- The exact 44043 manual identifies 12V-only direct battery-clamp operation and requires the vehicle engine to run.
- The product page and manual describe a 25-foot inflator/deflator hose with a 120-PSI inline gauge; the manual documents both manual inflation cutoff and deflation controls.
- VIAIR names a 37-inch tire from 0 to 30 PSI in under five minutes, but that is a manufacturer scenario rather than an independent or transferable fill-time result.
Tradeoffs to weigh
- The manual requires the operator to switch the compressor off at the desired pressure; a preset tire-pressure stop is not documented.
- The model draws up to 44A and is limited to 33% duty at 100 PSI. The product page/manual call out a 50A fuse while the dimensional drawing labels the clamps 40A; confirm the supplied electrical arrangement with VIAIR.
- IP54 does not mean waterproof; the manual says not to expose the running compressor to water or soft sand. VIAIR marks separately sold hose part 00027 as incompatible with 44043.
Check these before ordering
- Confirm the exact 440P / part 44043, not 400P, 450P-AUTO, 450P-RV or an unrelated bundled system.
- Verify the actual 12V clamp lead, fuse holder/fuse rating, 25-foot supplied hose, 120-PSI gauge, three-piece tip kit, Presta adapter and carry bag in the exact offer; ask VIAIR about the 40A-clamp/50A-fuse documentation detail.
- Do not substitute VIAIR hose part 00027; its own product listing says it is not for use with 440P / 44043.
- Follow the exact manual's engine-running, ventilation, upright placement, pressure, duty-cycle, hot-component and gauge-check instructions; use the tire maker's recommended pressure.