Product Description
Interstate-McBee M-4955210 Exhaust Valve – 1998.5–2018 5.9L/6.7L Cummins
Direct-replacement exhaust valve engineered by Interstate-McBee for ISB 5.9L (24-valve) and 6.7L Cummins applications from 1998.5 through 2018. Built to OEM-equivalent dimensions and materials for reliable sealing, correct heat transfer, and long service life. Sold individually; 12 required per engine.
- OE-equivalent fit & function: Matches Cummins reference 4955210.
- Consistent quality: Precision machining for proper seat geometry and stem finish.
- Service-ready: Ideal for stock refreshes or top-end repairs on daily-driven and work trucks.
- Value: Interstate-McBee quality at a lower cost than OEM-boxed parts.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-4955210 |
| OEM Reference | Cummins 4955210 (Exhaust Valve) |
| Sold As | Each (1 exhaust valve) |
| Qty Required | 12 per engine (24-valve head: 12 intake / 12 exhaust total) |
| Position | Exhaust valve (cylinder head) |
Vehicle Fitment
Always verify by engine serial number (ESN) when possible.
- Dodge/RAM 2500 & 3500, ISB 5.9L 24-valve (1998.5–2002)
- Dodge/RAM 2500 & 3500, ISB 5.9L Common Rail (2003–2007)
- RAM 2500/3500 & chassis variants, ISB 6.7L (2007.5–2018)
- Additional ISB B-Series applications using Cummins 4955210 (confirm by ESN)
What’s Included
- (1) Interstate-McBee exhaust valve, P/N M-4955210
Recommended / Related Parts
- Cummins 4955210 OEM Exhaust Valve (OE alternative)
- Interstate-McBee M-3955393 Valve Stem Seal (2003–2018)
- Valves & Valve Components (category)
- Shop all Interstate-McBee parts
Note: 1998.5–2002 24-valve engines use different stem seals than 2003–2018. Select seals by ESN/year.
Install Notes
- Use proper valve spring compression tooling; wear eye and hand protection.
- Inspect guides and measure stem-to-guide clearance; ream/replace as required.
- Recondition/cut seats and verify installed height, margin, and concentricity per Cummins spec.
- Service one cylinder at a time; follow the factory service manual torque and lash procedures.
Why Buy from CPP Diesel
- Diesel-specialist support with ESN verification
- Fast shipping and easy returns
- Deep inventory of ISB valvetrain components
FAQ
How many valves do I need for a full exhaust set?
There are 12 exhaust valves on the 24-valve ISB cylinder head. Order 12 pieces for a complete exhaust set.
Do I need to cut the seats when replacing valves?
Seat reconditioning or cutting is commonly required to ensure proper sealing and geometry. Follow Cummins specs.
Will this fit both 5.9L and 6.7L?
Yes—this valve matches Cummins 4955210 used across ISB 5.9L (1998.5–2007) and ISB 6.7L (2007.5–2018). Verify by ESN.
Are stem seals included?
No. Stem seals are sold separately. See the related parts above and choose seals by model year/ESN.
