Air Manifold | Freightliner Cascadia | Freightliner 12-21425-002 / 12-21425-001 | FleetRun FR-BRKE384


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6 Month / 50,000 Mile Warranty

Part Number

  • FleetRun: FR-BRKE384

Cross Reference Part Number

  • Freightliner / Alliance: 12-21425-002 / 12-21425-001 / 1221425001 / 1221425002
  • Automann: 170.1015 / 170.1015OE
  • Misc. Industry Part Number: TKL01015


  • Outside Diagram: 4 - 1/8 in. NPT Threaded Sensor Connections, 5 - 1/4 in. PLC Air Hose Connections, 4 - 3/8 in. PLC Air Hose Connections, 3 - 1/8 in. PLC Air Hose Connections
  • Inside Diagram: 4 - 1/4 in. PLC Air Hose Connections, 5 - 3/8 in. PLC Air Hose Connections

Please note: this is an aftermarket part, the use of other manufacturer's names, part numbers or trademarks is for informational purposes only

Please verify OEM part numbers before purchasing, FleetRun assumes no liability related to product use and fitment.

Looking for a high-quality air manifold for your Freightliner Cascadia? Look no further than FleetRun's FR-BRKE384 air manifold! Designed to meet or exceed OEM standards, this manifold is specifically built to fit your 2008-2018 Freightliner Cascadia.

With a range of passages with brass fittings and durable housing material, this air manifold is built to tie together the various air, brake, and ABS systems in your truck. Whether you're replacing a worn-out manifold or need a reliable part for a repair, the FR-BRKE384 delivers the value and performance you need.

At FleetRun, we pride ourselves on providing top-quality parts at a fair price. We understand that you need reliable parts to keep your truck on the road, and we're here to help. If you have any questions about the FR-BRKE384 or any of our other products, please don't hesitate to contact us. You can reach us by email or through our website, and our team of experts is always ready to help.

So why wait? Purchase your FR-BRKE384 air manifold today and experience the quality and value that FleetRun is known for!

  • For other information such as tips and tricks or troubleshooting from technicians and shops visit our Shop Talk page from our menu
  • 2008-2018 Freightliner Cascadia

How to find air leaks on my Freightliner Cascadia by myself?

Read our blog about doing an air leak inspection by yourself: 

How to fix an air leak on a semi truck? / How do I find an air leak in my truck?

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