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K&N BM-1821 High-Flow Engine Air Filter for BMW R18 Motorcycles
$110.99
In stock
✓ Free Shipping
Washable, reusable K&N BM-1821 replacement air filter with pre-oiled cotton gauze media and an OEM-style fit for select BMW R18 motorcycles.
Price shown is the online purchase price. Free shipping · 30-day return policy
Product Description
The K&N BM-1821 is a replacement engine air filter for select BMW R18 motorcycles from 2020–2026. It features washable, reusable oiled cotton gauze media, a pre-oiled design, and OEM-style fitment. Includes one air filter.
Product Specifications
BrandK&N
ManufacturerK&N Engineering, Inc.
Manufacturer Part NumberBM-1821
Item Model NumberBM-1821
Item Weight8 ounces
Brand NameK&N
Model NumberBM-1821
OEM Equivalent Part NumberBM-1821
Number of Items1
Number of Packs1
Global Trade Identification Number00024844391896
Unit Count1 Count
UPC779420459827 024844391896
Included Components1 Air Filter
Item Type NameReplacement Air Filter
Manufacturer Warranty Description1,000,000 Miles/10 Year
Item Dimensions L x W x H5.08"L x 38.1"W x 25.4"H
ShapeRound
Item HighlightFits Select Compatible with select 2020-2026 BMW: R18 Roctane/R18/R 18 Classic/R18 First Edition (See Product Description)
Product GradeReplacement Part
Fit TypeVehicle Specific Fit
Automotive Fit TypeVehicle Specific Fit
Explicit Manufacturer Part NumberBM-1821
Explicit OE/OEM Part NumbersBM-1821, style
Filter mediaOiled cotton gauze
Filter typeWashable and reusable replacement air filter
Quantity1 air filter
Weight8 ounces
Dimensions5.08 in L x 38.1 in W x 25.4 in H
Motorcycle Compatibility
| Year | Make | Model | Power / Engine | Variant |
|---|---|---|---|---|
| 2020 | BMW | R18 | ||
| 2020 | BMW | R18 Classic | ||
| 2021 | BMW | R18 | ||
| 2021 | BMW | R18 | First Edition | |
| 2021 | BMW | R18 Classic | ||
| 2022 | BMW | R18 | ||
| 2022 | BMW | R18 | First Edition | |
| 2022 | BMW | R18 B | ||
| 2022 | BMW | R18 Classic | ||
| 2022 | BMW | R18 Classic | First Edition | |
| 2022 | BMW | R18 Transcontinental | ||
| 2022 | BMW | R18 Transcontinental | First Edition | |
| 2023 | BMW | R18 | ||
| 2023 | BMW | R18 | 100 Years | |
| 2023 | BMW | R18 B | ||
| 2023 | BMW | R18 Classic | ||
| 2023 | BMW | R18 Roctane | ||
| 2023 | BMW | R18 Transcontinental | ||
| 2024 | BMW | R18 | ||
| 2024 | BMW | R18 | 100 Years | |
| 2024 | BMW | R18 B | ||
| 2024 | BMW | R18 Classic | ||
| 2024 | BMW | R18 Roctane | ||
| 2024 | BMW | R18 Transcontinental | ||
| 2025 | BMW | R18 | ||
| 2025 | BMW | R18 B | ||
| 2025 | BMW | R18 Classic | ||
| 2025 | BMW | R18 Roctane | ||
| 2025 | BMW | R18 Transcontinental | ||
| 2026 | BMW | R18 | ||
| 2026 | BMW | R18 B | ||
| 2026 | BMW | R18 Classic | ||
| 2026 | BMW | R18 Roctane | ||
| 2026 | BMW | R18 Transcontinental |
Always compare the part number, dimensions, specifications, and compatibility details with your original part before ordering.
