UMISHI Driver/Passenger Bottom Seat Cushion Pad for International Trucks 2001–2016 — 19.5×18.5×4.5in Textured Bolt-On

UMISHI bottom seat cushion pad is a direct-fit, non-OEM replacement cushion designed to restore comfort and appearance to National-style driver or passenger seats in many International trucks from 2001–2016.

This replacement bottom cushion is sized to match original contours and installs without drilling, making it a practical repair for worn, crushed, or missing seat bottoms. Constructed from durable materials and finished with an easy-clean textured surface, the pad restores seating support while giving the cab a refreshed look. It measures approximately 19.5" × 18.5" × 4.5" and is sold as an aftermarket accessory compatible with a wide range of International model years and National seats.

Which International models and seat types does this cushion fit?

The UMISHI pad was manufactured to match National-style seat bottoms used across many International truck series between 2001 and 2016. It fits driver or passenger sides where the original pad follows the same shape and mounting points. Check the vehicle series and year list before purchase to confirm compatibility.

• Common fits include International 3000, 4100, 4200, 4300, 4400, 7300–7700, 7500, 7600, 8500, TranStar, TerraStar, and WorkStar ranges.
• Specific model years covered: 2001–2016 depending on series.
• Replaces OE-style pad for part number 2505891C92 in applicable vehicles.

How straightforward is installation and what tools are needed?

Installation is designed to be simple and bolt-on for seats that accept a National-style bottom pad. No drilling is required when installing into a matching seat frame; you generally remove the old pad and secure the new unit using the existing fasteners. If your seat has unique modifications, minimal hardware adjustments may be necessary.

• Remove the worn pad and retain original fasteners for reuse when possible.
• No drilling required on standard National-style seat frames; bolt-on fitment.
• Typical install time: short — a single person can fit it in under an hour.

What are the construction and maintenance features?

The cushion is built from resilient materials intended to resist everyday wear while keeping shape and support. The top surface is textured for grip and straightforward cleaning—wipeable with mild cleaners—so it stays functional and presentable during regular use. It’s an aftermarket part, not an OEM unit, so it’s intended as a value-focused replacement.

• Durable internal foam and a textured outer surface for practical maintenance.
• Easy-to-clean finish reduces time spent on upkeep in commercial settings.
• Designed to restore original seat geometry and driver comfort without full seat replacement.

Will this cushion restore safety and seating performance?

While this pad restores the seat bottom’s shape and comfort, it’s an accessory replacement—not a certified OEM safety component. It is intended to replace missing or degraded padding so the seat functions closer to its original condition, but it does not replace any integral structural or restraint systems.

• Restores padding and support lost from age, compression, or minor collision damage.
• Not a structural or restraint system component—replace only the cushion portion.
• For full safety integrity, inspect frame, seat mounts, and belts separately.

Who is this for: Professional drivers, fleet managers, and owners of International trucks looking for an affordable, quick way to refresh worn National-style seat bottoms. It’s best for vehicles listed in the fitment range where the original pad shape and mount locations remain intact and you want a straightforward replacement without the cost or lead time of an OEM part.

Product specifications: Condition: Brand new; Dimensions: 19.5" × 18.5" × 4.5"; Replaces OE-style 2505891C92; Non-OEM aftermarket part. Before buying, verify your truck’s series and seat style against the fitment list to ensure compatibility.

Customer service: UMISHI offers support for fitment questions and will assist with troubleshooting, replacement, or refund requests if the cushion does not meet fitment expectations.