Cummins ISB 6.7L, 5.9L, 4.5L Piston Kit, New (4089423)

Think you know the truth about Piston Kits? We’d bet you’d be surprised.
It’s no secret, rebuilding your rig is one of the most labor (and wallet) intensive repairs out there. Sure, you want your engine to last another million miles but you also want the best price; so what should you choose- OEM or Aftermarket? 

When it comes to engine parts, the aftermarket often gets a bad rep. The idea that aftermarket retailers sell cheap parts with zero warranty, delivered in a beat-up box written in another language couldn’t be further from the truth. 4BTdiesel is here to set the record straight; we only sell new Piston Kits. On top of only offering premium quality parts, we also make sure you save up to 50% off OEM prices. So, when it comes to your Piston Kits, what’s left to want? 

Need a little extra proof? Let’s talk Piston Kits.

• In the engineeringprocess, an engine-specific design was created for this piston kit to ensure correct fit and function within your engine. 
• Also, this kit goes through strict ISO and QS certified manufacturing. Thisgives you excellent quality and consistency that you can trust.
• OE specifications? We’ve got you covered! They are met or exceeded at a much lower price. That means you’ll have more cash on hand! 
• Plus, give your engine an upgrade by replacing your old piston kit with a brand new one. Who wouldn’t want maximized engine performance from a new piston kit? 
• There’s no doubt that the piston included is CNC turned to precise tolerances. Here at 4BTdiesel, we have your back.

Contents

• (1) Piston Kit
• (1) Piston Body without Pin 
• (2) Piston Pin Retainers 
• (1) Single Cylinder Ring Set 
• (1) 1.00mm Oil Piston Ring 
• (1) 1.00mm Mid Compression Ring
• (1) Top Compression Ring

Warranty

6-month warranty.