K&N Engineering
Air Filters › Air Filters - Universal Fit
KN Universal Air Filter
Part # knn38-2021R MFR # 38-2021R UPC 024844277077 ID 397041
K&N Round Radial Seal 13-1/16in OD 7-9/16in ID 25-11/16in H Reverse Replacement Air Filter - HDT
✓ In Stock (4 locations)
$451.99
MAP price — best available price
Free ground shipping on eligible orders
⚠️ Prop 65 Warning — Contains chemicals known to the State of California to cause cancer or reproductive harm.
⚠️ Not CARB Approved — Race/off-road use only. Not legal for street use on California-registered vehicles.
⚠️ CARB Acknowledgment Required — Buyer must confirm emissions compliance at checkout.
Identification
| Brand | K&N Engineering |
|---|---|
| Part Number | knn38-2021R |
| MFR Part # | 38-2021R |
| UPC / Barcode | 024844277077 |
| Item ID | 397041 |
| Price Group | K&N |
| Born-On Date | 2020-08-28 |
| Category | Air Filters |
| Subcategory | Air Filters - Universal Fit |
Dimensions & Shipping
| Dimensions | 30.8" × 15.0" × 14.7" (L×W×H) |
|---|---|
| Weight | 18.30 lbs |
| LTL Freight | Standard Parcel |
| Air Shipping | Eligible |
Stock & Availability
| Status | ✓ In Stock (4 locations) |
|---|---|
| Warehouses |
● 01
● 02
● 03
● 59
|
| Regular Stock | Yes |
| Powersports | No |
Compliance & Regulations
| Prop 65 | ⚠ Warning Required |
|---|---|
| CARB | Not CARB Approved |
| CARB Ack. | Required |
| Active | Active |