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VIAIR 400P-RV EF Automatic Portable Compressor (part 40144)
Model: 400P-RV EF Automatic / 40144 · US configuration
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Part 40144 combines a 12V clamp arrangement, 25-foot primary hose and 20-foot extension for 45 feet total reach. This RV scenario accepts operator-managed tire pressure; the page/manual describe the chuck detail differently.
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Assessment scenario: 40144 EF long-reach RV tire work
An assessment scenario for RV tire work where a suitable 12V battery connection, two hose sections and manual pressure control are appropriate. The public finder has no RV-specific question; this static scenario is not the visitor’s intent or proof of compatibility. Product-page and manual chuck labels differ, so confirm the exact package.
Explore this buying guide ↗Why consider this model?
- The exact 40144 page identifies the RV-focused EF configuration and lists dual-tire compatibility and 45 feet total hose reach.
- The exact manual specifies 12V battery clamps, 30A maximum current, a 40A fuse and engine-running operation.
- The manual lists a trigger-operated gun, a 45-degree dual-rear-wheel reach chuck and a 90-degree twist-on chuck; the current page uses an additional “40-inch” description that should be confirmed.
Tradeoffs to weigh
- No user-selected pressure stop is documented; the 130/155-PSI pump switch is not an RV tire target.
- The package is RV-oriented; this scenario does not certify passenger-car fit or a particular tire workload.
- The current product page and manual do not phrase the reach-chuck details identically; do not assume a seller listing contains the expected piece without checking.
Check these before ordering
- Verify part 40144 / 400P-RV EF Automatic rather than 40047, 40044, 40145 or a 450P-RV EF.
- Confirm the clamps, fuse, both hoses, inflation gun, exact chucks, tips and Presta adapter in the seller’s package.
- Check 12V circuit requirements and follow manual duty, gauge, heat and ventilation instructions; ask VIAIR about the exact RV tire/load if fit is uncertain.