A tyre deflator lets air out of a tyre through the valve, so you can drop the pressure for a track, a beach or a bush camp without fiddling with a gauge on every tyre. This page compares seven sets sold on Amazon Australia, from a single rapid release unit to four deflator sets that stop at the pressure you choose.
Every fact below comes from the product listing, and the ratings are the buyer ratings on the listing today. The first question is whether you want one fast deflator or four that work together.
Best overall: Boulder Tools Rapid Deflator Kit
Best tyre deflator overall: the Boulder Tools Rapid Deflator Kit, because it is a rapid release deflator with a built in bourdon gauge, a braided hose, a Molle pouch, valve caps, valve cores and a 4 in 1 valve tool.
The listing describes a rapid release tyre deflator for 4x4 off road tyres, with a built in bourdon tube pressure gauge so you can check pressure as you go. The kit includes a heavy duty deflator, a Molle pouch, valve caps, valve cores and a repair tool. The listing says it is made from rust and corrosion resistant brass with a strong braided air hose and a tough rubber gauge cover. It holds 4.4 stars from 5,391 ratings, the most of any pick here.
It suits owners who want one tool that deflates fast and reads the pressure at the same time. The honest catch: the listing describes a single deflator, so you work one tyre at a time, and its 5,391 ratings appear to be shared with other Boulder deflator listings.
Best for four tyres at once: GODESON 4 in 1 Brass Deflators
Best for four tyres at once: the GODESON 4 in 1 Brass Deflators, because four solid brass units screw onto the valves together and lock into one piece for storage.
The listing describes four 100% solid brass deflators that screw on and off each other to make one unit, with a key ring. You screw each one onto a standard Schrader valve stem and it depresses the pin in the valve core to start deflating, so the valve core stays in. The set comes with four black replacement valve caps and a one year warranty. The listing says it suits a car, jeep, truck, motorcycle or bicycle with a Schrader valve. It holds 4.6 stars from 1,285 ratings, the highest rating here.
It suits anyone who wants to air down every tyre together without removing a valve core. The honest catch: you stop each deflator by hand when the tyre reaches the pressure you want, and it does not hold a preset pressure.
Best automatic: Spurtar Deflator Kit
Best automatic: the Spurtar Deflator Kit, because four brass deflators adjust from 6 to 30 PSI in 3 PSI steps and come with a storage bag.
The listing describes a set of four brass deflators that adjust from 6 to 30 PSI in increments of 3 PSI. You pre set each deflator to the pressure you want, then screw it clockwise onto the valve stem. The listing says it suits Jeep, car, truck, motorcycle and ATV tyres, and the kit includes a storage bag. It holds 4.3 stars from 672 ratings.
It suits owners who want four deflators ready to go at a pressure they chose earlier. The honest catch: the listing says actual time varies with tyre size and how much pressure you want to drop.
Best for heavy duty: Staun Automatic Deflators
Best for heavy duty: the Staun Automatic Deflators, because they are adjustable from 15 to 55 PSI and made for heavy vehicle tyres that run high pressures.
The listing describes Staun as the Australian original and says the set is ideal for heavy vehicle tyres that run high street pressures. The heavy duty model is adjustable from 15 to 55 PSI and factory preset to 35 PSI, and the listing says fully automatic tyre deflation saves time. Four deflators come in each set, and the listing says they are precision made in Australia. It holds 4.4 stars from 199 ratings.
It suits owners of heavier vehicles who need a higher pressure range than the other sets reach. The honest catch: it costs several times more than the GODESON, Spurtar, SAFELIFE and Dornata sets.
Best wide range: Dornata Auto Stop Deflator Kit
Best wide range: the Dornata Auto Stop Deflator Kit, because it stops by itself at the pressure you set anywhere from 10 to 40 PSI in 5 PSI steps.
The listing describes an auto stop function, so there is no need to wait and watch the tyre. The valve stem is marked from 10 to 40 PSI in 5 PSI intervals and you twist the metal ring to set the pressure. Each kit is described as individually calibrated, the deflators need no batteries, and the listing mentions a lifetime warranty. It holds 4.5 stars from 193 ratings.
It suits owners who want to set a pressure once and walk away. The honest catch: it costs more than the Spurtar and SAFELIFE sets, and it has fewer ratings than most picks here.
Best for PSI and BAR: SAFELIFE Automatic Deflator
Best for PSI and BAR: the SAFELIFE Automatic Deflator, because each unit is individually calibrated to within 2 PSI per the listing and you set 10 to 30 PSI or 0.7 to 2 BAR by twisting the shell with no tools.
The listing describes a set of four that stop at the pressure you set, with a clear scale in both PSI and BAR. The body is premium brass with stainless steel internal components and an anti corrosive coating over a nickel plated body, and a bag is included for storage. The listing says the set fits in the palm of your hand and you can stand up while airing down. It holds 4.2 stars from 140 ratings.
It suits anyone who thinks in BAR as well as PSI and wants a tool free adjustment. The honest catch: it is the lowest rated of the auto stop sets here at 4.2 stars.
Best with gauge: X-BULL Automatic Deflators
Best with gauge: the X-BULL Automatic Deflators, because the set adds a geared brass pressure gauge with a protective case, four valve caps and a 4 way tool.
The listing describes a corrosion resistant brass and stainless deflator tool with a gauge that has an easy to read dial in 1 PSI increments and a fully geared solid brass movement. The listing says the gauge accuracy is not affected by changes in temperature, humidity or altitude. The set includes a protective plastic case, an instruction sheet, four valve caps and a 4 way tool, and the listing mentions a lifetime satisfaction guarantee. It holds 4.0 stars from 155 ratings.
It suits owners who want a separate gauge in the kit to check the result. The honest catch: it has the lowest rating of the picks at 4.0 stars.
How to choose tyre deflators
One fast deflator or four at once
A single rapid release unit like the Boulder kit deflates one tyre at a time but reads pressure as it goes. Sets of four, such as the GODESON, Spurtar, Staun, Dornata and SAFELIFE, let you fit one to each valve and let all four tyres down together, which is the main time saver.
Manual or auto stop
Manual deflators like the GODESON keep letting air out until you unscrew them. Auto stop sets such as the Dornata, SAFELIFE and Staun are set to a pressure first and stop by themselves, so you do not need to stand over each tyre, and the Spurtar is pre set the same way before it goes on the valve. Auto stop sets generally cost more.
Check the pressure range
Each adjustable set covers a different range: Spurtar 6 to 30 PSI, SAFELIFE 10 to 30 PSI, Dornata 10 to 40 PSI and Staun 15 to 55 PSI. Pick the set whose range includes the pressures you actually run, because a set cannot be adjusted outside its scale.
PSI or BAR markings
Most listings give PSI only. The SAFELIFE is the one here that also marks 0.7 to 2 BAR, which helps if your gauge or vehicle uses BAR.
Accuracy and a gauge
Deflators are not gauges. The SAFELIFE listing gives an accuracy of plus or minus 2 PSI per unit, and the Boulder and X-BULL kits include a gauge to check the result. Whichever set you buy, a gauge you trust matters more than the last PSI on a deflator dial.
What is in the kit
Look at the extras. The Boulder kit adds a pouch, valve caps, cores and a repair tool, the GODESON adds replacement caps and a key ring, and the Spurtar and SAFELIFE include a storage bag. Airing down is half the job, so see our tyre inflator guide and air compressor guide for pumping back up.
Ratings and rating counts
Read the counts with the stars. The GODESON has 4.6 from 1,285 ratings, while the Staun, Dornata, SAFELIFE and X-BULL each have under 200 ratings, so their scores can move. The Boulder count looks pooled across listings. For other gear for the same trips, our jump starter guide is worth a look.
Frequently asked questions
What are the best tyre deflators in Australia?
For most people the Boulder Tools Rapid Deflator Kit is the best all rounder here, with a rapid release deflator, built in gauge and a pouch of valve parts. The GODESON 4 in 1 brass set is the pick for deflating four tyres at once, and the Dornata is the one that stops by itself.
Which tyre deflators have the best reviews and ratings?
The GODESON 4 in 1 brass deflators hold the highest rating here at 4.6 stars from 1,285 ratings, with the Dornata next at 4.5 from 193. The Boulder kit has the most ratings at 5,391 and 4.4 stars, though those ratings look shared with other Boulder listings.
What are the best automatic tyre deflators in Australia?
The Spurtar Deflator Kit is our best automatic pick: four brass deflators you pre set from 6 to 30 PSI before screwing them on. The Dornata, SAFELIFE and Staun listings say outright that they stop at the pressure you set, covering 10 to 40 PSI, 10 to 30 PSI or 0.7 to 2 BAR, and 15 to 55 PSI.
What are the best tyre deflators for a 4WD?
The Boulder Tools kit suits 4WD owners who want one fast deflator with a gauge, as its listing is written for 4x4 off road tyres. The GODESON and Spurtar sets give you four deflators to air down every tyre together. The Staun suits heavy vehicles running higher pressures.
Are Staun tyre deflators worth it?
The Staun is worth it if you need its range. The listing describes it as the Australian original, adjustable from 15 to 55 PSI and factory preset to 35 PSI, with four deflators in each set. It costs several times more than the GODESON or Spurtar sets, so lighter users can save.
What is the difference between automatic and manual tyre deflators?
Manual deflators such as the GODESON bleed air until you unscrew them, so you watch the tyre and stop by hand. Automatic ones such as the Dornata and SAFELIFE are set to a pressure first and stop themselves, so you can leave all four running without checking each tyre.
Do tyre deflators remove the valve core?
The GODESON and SAFELIFE listings say you do not: the GODESON depresses the pin in the valve core to let air out and the SAFELIFE says no tricky removal of valve cores. The Boulder Tools listing does not say, but its kit includes spare valve cores and a 4 in 1 valve tool.
Do I need a tyre inflator as well as deflators?
Deflators only let air out, so most owners pair them with a way to pump the tyres back up. The Boulder kit has a gauge for checking pressure, and the X-BULL adds a geared brass gauge. Our tyre inflator guide covers the pumps that finish the job.
What is the cheapest tyre deflator set worth buying here?
The GODESON 4 in 1 brass set is the lowest priced of the sets on this page and also the highest rated at 4.6 stars. You stop each deflator by hand, so it suits people happy to watch the tyre. The X-BULL costs a little more but adds a pressure gauge.
