The facts.
DescriptionThe whole story▼
The touring season and the road-building season are the same months. Anyone who rides a Chieftain through a summer meets it: lanes milled down to the base course, a gravel diversion around a closed bridge, a kilometre behind a lorry spreading chippings. None of that is off-road riding, and all of it puts fine mineral dust into the air at the height of the intake. PM237P14 is the element catalogued for a Chieftain that spends a real share of its time in that air: a dry nonwoven rated at 14 µm, against the 80 µm of the woven panel for the same housing.
Key Features
- Dry special nonwoven, filtration rated at 14 µm
- 1,800 l/m²/sec of rated flow, deliberately below the woven P08
- Dust is held through the depth of the mat, not only on its surface
- No oil at any point, on delivery or after a wash
- Takes the place of the paper panel in the unaltered airbox; no remap
- Around twice the filtering area of a conventional element, two years of warranty
What the finer mat costs
Retention and flow move together. 14 µm comes with 1,800 l/m²/sec, against 5,050 for the P08 in this housing, and that difference is paid on every ride, dusty or not. A heavy tourer cruising on clean motorway does not need what the P14 adds, which is why it is the second choice for most Chieftains rather than the first. It is also the cheaper of the two, at about two thirds of the woven panel's price, and that should play no part in the decision. The only real question is how often the bike rides through roadworks and gravel.
Not more power, a cleaner intake
A drop-in element does not make a standard Chieftain noticeably stronger, whichever medium it is made of. What the P14 adds is a smaller share of fine dust reaching the engine on dirty days. What both media share is a resistance that returns to its starting point at every cleaning. Because a finer mat loads sooner, check it more often during a summer of diversions than the service book would suggest, and clean it when it needs it.
Care and cleaning
Clean PM237P14 with compressed air from the clean side, so the dust leaves the way it arrived instead of being driven deeper into the mat. Where damp has bound it in place, lukewarm water with a little mild detergent releases it; rinse until clear. Then dry the panel in moving air at room temperature, never with a heat gun, radiator or flame, and refit it dry. A nonwoven takes longer to dry through than it looks. The maintenance sheet is in the Downloads tab.
Fitment & Compatibility
For the Indian Chieftain of 2025–2026, fitted in the series airbox. This P14 is listed for six machines: the Chieftain, the Roadmaster, the Pursuit and the three versions of the Challenger. Model years for each are in the Fitment tab.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- Indian Challenger (2020–2026)
- Indian Challenger Dark Horse (2020–2026)
- Indian Challenger Limited (2020–2026)
- Indian Chieftain (2025–2026)
- Indian Pursuit (2022–2026)
- Indian Roadmaster (2025–2026)
- Indian Challenger 1890 (2020–2026) · own page →
- Indian Challenger Dark Horse 1890 (2020–2026) · own page →
- Indian Challenger Limited 1890 (2020–2026) · own page →
- Indian Pursuit (2022–2023) · own page →
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