558103T000
Biste Parts
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The first-generation Kia K9 / K900 / Quoris was engineered to deliver an uncompromisingly smooth and luxurious ride, a feat made possible by its sophisticated Electronic Control Suspension (ECS). The central air suspension valve block is the heart of this system, managing air distribution to maintain that perfect balance and comfort. As these vehicles age, this valve block has become a primary point of failure, leading to a cascade of predictable and frustrating issues.
Is your workshop diagnosing a Kia K9, K900, or Quoris with these classic symptoms?
A persistent "ECS FAULT" warning light on the dashboard.
The vehicle is sagging or sitting low on one or more corners, particularly after being parked.
The air suspension compressor is running excessively or constantly.
A noticeable degradation in ride quality, with the car feeling harsh and bumpy.
These are the definitive signs of a leaking air suspension valve block. The internal seals degrade over time, causing micro-leaks that the system cannot overcome. This not only ruins the driving experience but places the entire system at risk by forcing the air compressor into a state of constant operation, leading to overheating and premature failure.
The Biste Air Suspension Valve Block is the definitive aftermarket solution. Manufactured to meet or exceed original equipment standards, it provides a permanent fix to the root cause of the leak. By replacing the faulty original unit, you can confidently clear dashboard warnings, restore the vehicle's proper ride height, and most importantly, protect the costly air compressor from burnout. Deliver a complete and lasting repair that restores the flagship experience for your customer.

Feature | Advantage for Your Business |
Direct Fit for OEM Part 55810-3T000 | Eliminate Installation Headaches. This part is a guaranteed physical and electronic match, reducing bay time and ensuring a plug-and-play repair with no comebacks. |
Solves Common ECS Faults & Leaks | Deliver a Confident First-Time Fix. Reliably resolve the most frequent air suspension issues on this platform, increasing customer satisfaction and workshop efficiency. |
Prevents Air Compressor Burnout | Offer a Value-Added, Preventative Repair. By fixing the leak, you save your customer from a much larger future expense, reinforcing your workshop's expertise and trustworthiness. |
Built with Premium-Grade Materials | Reduce Warranty Claims. Featuring robust solenoids and advanced polymer seals, our valve block is built for long-term reliability, protecting your reputation and bottom line. |
Attribute | Detail |
Product Name | Air Suspension Solenoid Valve Block |
Brand | Biste |
Condition | 100% Brand New |
Package Contents | 1x Solenoid Valve Block Assembly |
This is a direct, interchangeable replacement for the following Kia original equipment part number:
55810-3T000
This valve block is a direct fit for the following first-generation (KH) models equipped with factory air suspension:
Kia K9 (KH) | 2012 - 2018
Kia K900 (KH) | 2012 - 2018
Kia Quoris (KH) | 2012 - 2018
Professional installation is strongly recommended. If the vehicle's air suspension compressor has previously failed and been replaced, it is critical that the entire air line system is flushed to remove any desiccant dust or metal debris. Failure to do so will cause immediate contamination and damage to the seals in the new valve block, voiding the warranty. Always perform a comprehensive leak test using a soapy water solution after installation to ensure all connections are 100% airtight.
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