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K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.
| Air Filter Large End Diameter | 5.375 in. (137mm) |
| Automotive Item Grade | High Performance |
| Base Outside Diameter | 5.375 in. (137mm) |
| CARB/Air Horn Diameter | 4.000 in. |
| Filter Material | Cotton Gauze |
| Filter Re-Oiling Amount | 0.95 oz (28 ml) |
| Flange Angle | 0 Degree |
| Flange Inside Diameter | 4.000 in. (102mm) |
| Flange Length | 0.625 in. (16mm) |
| Flange Offset | 0.000 in. (0mm) |
| Flange Type | Centered |
| Frame Design | Flexible |
| Item Height | 6.000 in. (152mm) |
| Item Weight | 0.900 lbs. (0.4 kg) |
| Machine Washable | Yes |
| Material | Rubber Base |
| Number of Flanges | 1 |
| Oil Included | Filter Is Pre-Oiled |
| Package Content | 1 |
| Package Contents | 1 Air Filter |
| Package Material | Paperboard |
| Package Quantity | 1 |
| Package Type | Box |
| Pre-Screened | No |
| Product Box Height | 11.000 in. (279mm) |
| Product Box Length | 6.380 in. (162mm) |
| Product Box Width | 6.380 in. (162mm) |
| Prop 65 (C, R or CR) | CR |
| Prop 65 Warning Label | https://www.knfilters.com/images/l/prop65.jpg |
| Shape | Round Tapered |
| Title | K&N RU-5121 Universal Clamp-On Air Filter |
| Top Material | None |
| Top Outside Diameter | 3.500 in. (89mm) |
| Top Style | Rubber |
| WARNING CA Proposition 65 | Yes |
| WARNING CA Proposition 65 Message | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
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K& N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other...
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K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other...
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