The facts.
DescriptionThe whole story▼
Very little of the dust an air filter deals with is raised by the motorcycle breathing it. It is lifted by whatever went past a moment earlier: the car ahead on a dry gravel approach, a tractor on a field road in August, four bikes in front of you on the same unsealed mile. Riding at the head of a group and riding at the back of one are not the same air supply, and nothing about the machine changes between them. That is the variable this element is bought against.
Key Features
- Special dry nonwoven, rated at 14 microns of filtration
- 1,800 l/m²/sec of rated flow, set against 5,050 for the 80-micron weave in the same housing
- No oil at any stage — nothing to apply when new and nothing to reapply after washing
- Direct replacement in the standard airbox, with no housing changes and no remap
- About double the working area of an ordinary performance filter, in the original frame
- Blown clean and refitted, specified for the life of the motorcycle, two-year warranty
Position in the line decides the load
Air that has been disturbed stays disturbed for a while. The coarse part of what a wheel throws up falls back quickly, but the fine fraction hangs where it was left, and a rider arriving a few seconds later collects it. On rallies and organised runs a Challenger Dark Horse can spend an entire day in somebody else's wake, which is why two identical machines covering the same route can present very different elements at the next service. A medium is therefore chosen for the worst company the bike is likely to keep, not for the average of a season.
What the finer mat costs
Every step down in rating is paid for in flow, and the bill arrives on every ride rather than only on the dusty ones: 1,800 l/m²/sec here against 5,050 for the standard weave in the same frame. That is the whole trade, and it is a trade and not a ranking — the coarser cloth is the right answer for a machine that lives on clean tarmac. It should also be said plainly that neither medium makes the motorcycle quicker. An element sitting in an untouched airbox has no route to more power. What it offers is a resistance figure that can be returned to where it started, as often as the riding requires.
Care and cleaning
The service tool is an air line, held against the clean side of the PM237P14 and worked outwards until the mat looks even again. Grease and road film need lukewarm water and a mild washing-up liquid, rinsed through until nothing more comes away. After that, only open air at ordinary room temperature: no warming cupboard, no hot-air gun, no flame, since heat is what actually ends these elements. Refit it fully dry and untreated. The cleaning instructions are filed under Downloads.
Fitment & Compatibility
Listed for the Indian Challenger Dark Horse of 2020 to 2026. Two further machines of the same family take the identical part across the identical years, the Challenger and the Challenger Limited — three entries against one code. Check the model year in the Fitment tab and order by that and the code.
DownloadsOwner's manual · brochure▼
FitmentWhich bikes this fits▼
- Indian Challenger (2020–2026)
- Indian Challenger Dark Horse (2020–2026)
- Indian Challenger Limited (2020–2026)
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