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Kenworth W900B/W900L Gauges & Switches
Frequently Asked Questions About Kenworth W900B/W900L Gauges & Switches
What years and models are compatible with these gauges and switches?
Our Kenworth W900B/W900L gauges and switches are designed for W900B models from 1987-2007 and W900L models from 1989-present. However, compatibility can vary based on your specific dash configuration and whether you have a flat glass or curved glass dash. We recommend checking your VIN and dash style before ordering, or contact our support team with your truck details for verification.
Are these OEM replacements or aftermarket, and what's the quality difference?
We carry both genuine OEM Kenworth parts and high-quality aftermarket alternatives. OEM gauges ensure exact fit and factory specifications, while our aftermarket options from brands like VDO and Stewart Warner offer comparable performance at a lower price point. All aftermarket gauges we stock meet or exceed OE specifications and typically include the same 1-year warranty as OEM parts.
Do I need special tools or professional installation for gauge replacement?
Most gauge replacements can be completed with basic hand tools including screwdrivers, socket sets, and wire crimpers. The main challenges involve accessing gauges behind the dash panel and properly connecting electrical terminals. While not required, a dash removal tool set makes the job easier and reduces risk of damaging trim pieces. Typical installation time ranges from 30 minutes for a single gauge to 3-4 hours for a complete cluster replacement.
What's the difference between mechanical and electric gauges, and which should I choose?
Mechanical gauges use physical connections (capillary tubes or cables) and provide readings without electrical power, making them extremely reliable. Electric gauges use sending units and require proper grounding but offer easier installation and more mounting flexibility. Your W900B/W900L likely came with electric gauges from the factory, but both types can work if you have the correct sending units. Electric gauges are generally recommended unless you're restoring to original mechanical specifications.
Why are my new gauges reading incorrectly or not working at all?
The most common issues are incompatible sending units, poor ground connections, or incorrect gauge resistance ratings. Kenworth used different ohm ranges over the years - typically 0-90 ohm or 240-33 ohm for fuel gauges. Always verify your sending unit matches your new gauge specifications. Check all ground connections at both the gauge and sending unit, and ensure you're getting proper voltage (usually 12V) to the gauge power terminal. If problems persist, test your sending units with a multimeter to confirm they're functioning within spec.