21703 91 8308 31973000 Manual Paddle Valve Switch for Bostrom and National Seats

Product Overview

Key Features & Performance

This manual paddle valve switch controls air supply for seat adjustment in Bostrom and National Seats. It is a direct replacement using OEM part numbers 21703, 91-8308, and 31973000. Designed for heavy-duty truck and bus seating systems.

• Constructed with robust materials for long service life in commercial vehicles
• Simple manual push-button operation with a paddle-style actuator
• Exact fit for compatible Bostrom and National seat models
• Replaces multiple OEM part numbers for broad compatibility
• Easy to install with basic tools

Fitment & Compatibility

• Bostrom seats
• National Seats

Common Uses

• Replacement for failed paddle valve switches in heavy truck air suspension seats
• Used in bus driver seats requiring manual air release
• Suitable for off-road and construction vehicle seating systems

Technical Specifications

• Part Number(s): 21703, 91-8308, 31973000
• Product Type: Manual Paddle Valve Switch

Frequently Asked Questions

Q: Will this switch work on all Bostrom seats? A: It is designed for most models, but verify your seat's part number against the listed OEM numbers before purchase.

Q: Is this a genuine OEM part? A: This is a replacement part matching OEM specifications; it may be aftermarket but meets original fit and function.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.