The facts.
DescriptionThe whole story▼
A full-dress tourer like the Roadmaster is bought to cover long distances, and distance is exactly what makes a fine filter medium demanding. A finer mat holds more of what the air carries, so it fills sooner, and on a bike that covers big mileages in dusty conditions that adds up quickly. PM237P14 is a dry nonwoven rated at 14 µm for a Roadmaster that regularly rides through such air. It comes with a habit attached: looking at the filter more often than anyone would ever look at a paper panel.
Key Features
- Special nonwoven medium, dry, 14 µm filtration
- 1,800 l/m²/sec of rated flow, against 5,050 for the woven element
- Catches the fine fraction that a coarser weave lets through
- Never oiled: dry when fitted, dry again after every wash
- Fits the Roadmaster's series airbox as a direct replacement, no remap
- About twice the filtering surface of a typical performance filter; two-year warranty
A shorter interval, by design
Particles caught in the depth of a nonwoven stay there until they are blown out. On a dusty route that load builds faster than on a woven element, and the resistance rises with it. The practical answer is to inspect the panel at every oil change on a bike used in dust and to clean it when it needs it, not when a mileage figure says so. Air from the clean side usually brings it back; a wash follows only when air will not. Done that way, the finer filtration costs a few minutes per service.
Where the woven panel is better
Most Roadmaster kilometres are motorway and country road on sealed tarmac, and for those the P08, also catalogued for this machine, is the better element: 5,050 l/m²/sec against 1,800 here, and a surface that loads more slowly. The P14 is cheaper at about two thirds of the price, which is no reason to choose it. Neither medium will make a standard Roadmaster noticeably stronger. The case for this one is narrow and real: dusty air, often enough to matter.
Care and cleaning
Compressed air on the clean side of PM237P14, blown outwards, is the routine. If the mat has taken on a damp, bound-in deposit, lukewarm water with a little mild detergent loosens it; rinse thoroughly. Let it dry in moving air at room temperature and never by heat or flame, then refit it dry with nothing applied. The maintenance sheet is available in the Downloads tab.
Fitment & Compatibility
For the Indian Roadmaster of 2025–2026, seated in the unmodified series airbox. The P14 of this code is listed for six machines, from the three Challenger versions of 2020–2026 and the Pursuit of 2022–2026 to the Chieftain and Roadmaster of 2025–2026. Check your model year 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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