Quick answer
For a 3rd Gen Hilux Surf or 4Runner snorkel, the three options most owners actually consider are: Trundles stainless steel (NZ-built, ~NZ$1,500–2,500 bundle, premium look, weight penalty), Airplex polyethylene (Australian-made, ~NZ$500–800, ADR-certified, lightest), and generic plastic aftermarket (~NZ$300–500, similar pattern but no brand-level testing). Function is broadly identical across all three, they all relocate the intake to roof height. The decision is about material (stainless vs polyethylene), look (matte black plastic vs polished steel), durability under rollover and tree-strike (poly flexes back, stainless dents permanently), and price. We stock all three families and use them in different builds.
The three options side-by-side
| Spec | Trundles Stainless | Airplex Polyethylene | Generic Plastic |
|---|---|---|---|
| Material | 304 stainless steel | UV-stable polyethylene | ABS / polyethylene |
| Manufactured in | New Zealand | Australia | Asia (varied) |
| Weight | ~5–7 kg | ~2–3 kg | ~2–3 kg |
| Finish options | Raw or black powder-coat | Matte black | Matte black |
| ADR-certified | No (NZ-market) | Yes | Varies |
| Tree-strike behaviour | Dents permanently | Flexes, returns to shape | Flexes, may crack at the seam |
| UV degradation | None | 10–015 years before colour fade | 5–10 years |
| Aftermarket support | Direct from Trundles NZ | Direct from Airplex AU | Limited / no warranty |
| Price (NZD, snorkel only) | NZ$900–1,400 | NZ$500–800 | NZ$300–500 |
| Best for | Show builds, NZ-pride builds | Touring, daily use | Budget-conscious builds |
Trundles stainless: when to spend the money
Trundles is a NZ-based 4WD parts manufacturer that builds the stainless snorkel locally. The kit we stock is their 3rd Gen Stainless Snorkel & Airbox Combo (NZ$2,473–$2,633 depending on finish), which pairs the snorkel with a Trundles aluminium airbox replacement. The combo deal saves about 12% versus buying the two pieces separately.
Reasons to choose stainless:
- Look. A polished or black-powder-coated stainless snorkel sits differently in the build. If your truck is a show piece or a build you take to expos, it shows.
- UV permanence. Polyethylene snorkels fade and chalk over a decade in direct NZ sun. Stainless doesn't.
- Made-in-NZ provenance. Trundles is the only NZ-built stainless snorkel for the Surf platform, and it's worth supporting if that matters to you.
Reasons not to:
- Weight on the A-pillar. 5–7 kg is heavier than polyethylene. Long-term that loads the A-pillar mount points differently, worth re-torquing after the first 1,000 km.
- Tree strikes leave permanent dents, where a poly snorkel pops back. If you spend serious time in tight scrub, this matters.
- Higher price. Roughly double the equivalent polyethylene option.
Airplex polyethylene: the touring default
Airplex is an Australian polyethylene-snorkel specialist who's been building 4WD snorkels for decades. We stock their range in our Airplex collection. The KZN185/VZN185 fitment is a direct match for the Safari/ARB pattern, so install instructions are identical.
Reasons to choose Airplex polyethylene:
- ADR-certified, important if you're registering in Australia where compliance is checked.
- Tree-strike forgiveness. The polyethylene flexes and returns to shape. Real-world durability in bush use is excellent.
- Lighter on the A-pillar mount. Less stress on the mount over 100,000 km of touring.
- Lower price. Best price-to-quality ratio of the three options.
Reasons not to:
- Matte black finish only. If you want a polished stainless look or a specific custom colour, the Airplex doesn't deliver.
- UV fade over 10–15 years. Not a problem inside the first decade, but a poly snorkel left in the sun for 15 years will be visibly chalked.
Generic plastic aftermarket: when it's the right call
The lowest-cost option, typically NZ$300–500, is a polyethylene or ABS snorkel sourced from Asian manufacturers that copies the Safari/ARB pattern. We don't list these as a primary recommendation, but they fit and they work.
Reasons to consider:
- Half the price of branded poly. If budget is the constraint, this is the entry point.
- Same fitment as the branded options. The mounting holes and airbox connection match the Safari pattern.
Reasons to be cautious:
- No ADR certification on most. Won't pass a strict roadworthy in some AU states.
- Variable seam quality. Cheaper poly snorkels can crack along the seam in extreme cold or after long-term UV exposure.
- No brand-level warranty. If it cracks in 3 years, you're buying again, not warranty-claiming.
What's the same regardless of which one you pick
All three families:
- Cut the same hole in your right-front guard (use the supplied template either way)
- Use the same A-pillar mounting pattern
- Connect to the airbox via the same diameter hose
- Need the same install procedure, see our Hilux Surf snorkel install guide for the step-by-step
- Need the airbox-to-snorkel seal sorted properly or they all leak dust into the engine
The install matters more than the brand. A perfectly-installed generic snorkel will outperform a poorly-installed Trundles.
Our recommendation matrix
- Touring or daily-driver build, NZ/AU climate → Airplex polyethylene. Best price-to-quality, ADR-certified, light on the mount.
- Show truck or NZ-pride build → Trundles stainless steel. Premium look, made locally, paired well with the Trundles aluminium airbox upgrade.
- Budget build / first-time owner → Generic plastic aftermarket. Accept the trade-offs, focus the savings on bigger items.
- Hardcore off-road / bush bashing → Airplex polyethylene. The tree-strike flex saves you more than the stainless rigidity costs.
- Already have a stainless front bumper and full chrome trim → Trundles stainless ties the look together.
Related reading
- Hilux Surf Snorkel Install Guide, step-by-step install procedure.
- KZN185 Hilux Surf Guide, platform overview.
- Hilux Surf Lift Kit Guide, the natural companion mod for off-road builds.
FAQ
Stainless steel or polyethylene snorkel for my Hilux Surf? Polyethylene (Airplex or generic) is the touring default, lighter, ADR-certified, tree-strike forgiving. Stainless steel (Trundles) is the show / NZ-pride choice, premium look, made locally, but heavier and dents permanently in tree strikes.
Is the Trundles stainless snorkel worth the premium? If your build is show-oriented or you specifically want a NZ-made stainless product paired with the Trundles aluminium airbox, yes, the combo deal saves about 12% versus buying separately. For pure function, polyethylene is equal at lower price.
Will an Airplex snorkel fit a 4Runner? Yes, the Airplex 3rd Gen Surf fitment uses the Safari pattern, which matches the 1996-2002 4Runner. Same A-pillar mount, same guard cutout, same airbox connection.
Does a stainless snorkel rust? Not if it is genuine 304 stainless steel like the Trundles. Lower-grade stainless (430 or worse) can develop surface tea-staining in coastal use. Confirm the grade before buying any stainless snorkel.
Which snorkel is best for water crossings? All three families lift the intake to roof height equally - the snorkel itself is not the limiting factor. The make-or-break for water crossings is the airbox seal and the diff / transmission breathers. A properly-sealed generic snorkel is just as effective as a Trundles for water crossings, as long as the airbox seal is fresh.
