← Parts database
Cushion, Seat, Poly 18 424391-01
- Part number
- 424391-01
- Brand
- National Seating
- Price range
- $74.15
- Last checked
- Oct 28, 2026
Spec sheet
Collected from 1 supplier page - confirm fit with the supplier before ordering.
The National Seating Polyurethane 18-Inch Seat Cushion (424391-01) is a durable seating component designed to provide support and comfort in commercial vehicle applications. It serves as a replacement cushion that fits within standard seat frames to enhance operator seating ergonomics.
Suppliers (1)
- Big Rig WorldCushion, Seat, Poly 18 424391-01 · In stockChecked Oct 28, 2026$74.15View at supplier
Specifications and fitment
- Application
- Commercial vehicle seating
- Function
- Provides seating support and cushioning
- Compatibility
- Heavy-duty trucks, commercial vehicles
- Construction
- Polyurethane foam
- Features
- 18-inch width, polyester cover, molded foam
- Quality
- OEM National Seating part
- Current Part#
- 424391-01
- Type
- OEM
- Part# variations
- NTS 424391-01, NTS424391-01
- Manufacturer
- National Seating
- Warranty
- Standard Manufacturer Warranty
Features
- Polyurethane seat cushion for commercial vehicle operator seating support.
- Universal fit for a wide range of truck models.
Fits
- Heavy-duty trucks
- Commercial vehicles
Price history
| Date | Supplier | Price | Stock |
|---|---|---|---|
| Oct 28, 2026 | Big Rig World | $74.15 | In stock |