Product Description
Interstate-McBee M-4955523 Upper Engine Gasket Set — 2010–2012 6.7L Cummins (Aftermarket Replacement)
Quality upper engine (top-end) gasket & seal kit designed for the 2010–2012 6.7L Cummins ISB found in Ram 2500/3500 (and select 4500/5500 cab & chassis and other ISB applications). Built to OE form, fit, and function to help restore sealing integrity after top-end service. Sold as a set.
- Complete top-end solution: Consolidates the critical gaskets and seals needed when servicing the cylinder head and related components.
- OE-equivalent materials: Meets or exceeds OEM specs for reliable sealing under heat and boost.
- Service-ready: Ideal for head/valvetrain work, intake/exhaust removal, and EGR/turbo interface resealing.
- Value: Interstate-McBee quality at a competitive price point.
Specifications
| Brand | Interstate-McBee |
| Part Number | M-4955523 |
| OEM Reference | Cummins 4955523 (upper set) |
| Engine | 6.7L Cummins ISB (24-valve) |
| Years | 2010–2012 (verify by ESN for best results) |
| Sold As | Set (upper/top-end gasket kit) |
| Qty Required | 1 set per engine |
What’s Included
This upper set is intended to cover the common top-end gaskets and seals (for components removed above the block deck). Typical contents include:
- Intake and exhaust manifold gaskets
- Valve cover/perimeter seals and related grommets
- EGR/turbo interface gaskets and O-rings
- Coolant port/O-ring seals as applicable
- Misc. top-end seals for sensors, housings, and brackets
Note: Contents can vary by engine serial number and emissions package. Refer to the product images or contact us with your ESN for an exact contents check.
Vehicle/Engine Fitment
Always verify by engine serial number (ESN) for precise fit.
- Ram 2500/3500 — 6.7L Cummins ISB (2010–2012)
- Ram 4500/5500 cab & chassis — 6.7L Cummins (2010–2012, select)
- Other ISB applications using Cummins upper set 4955523
Install Notes
- Clean mating surfaces thoroughly; avoid scratching aluminum heads.
- Follow Cummins torque sequences and specs; replace single-use fasteners as required.
- Confirm gasket orientation and dry vs. wet (sealant) requirements per service manual.
- If performing head removal, verify whether the head gasket is included in your chosen kit; some “upper sets” exclude the head gasket.
Recommended/Related Parts
- Head bolts or studs (one-time-use fasteners)
- Exhaust manifold hardware kit
- EGR/turbo hardware & clamps
- Coolant and engine oil for refill
Why Buy From CPP Diesel
- ESN-verified fitment from diesel specialists
- Fast shipping, easy returns, and competitive pricing
- Deep inventory of genuine and aftermarket Cummins service parts
FAQ
Is the head gasket included?
Some upper sets exclude the head gasket. Check the contents for your ESN or contact us—we’ll confirm whether you also need to add a head gasket.
Will this fit my 2010–2012 Ram 6.7L?
Yes—this set targets the 2010–2012 6.7L Cummins ISB. Because running changes occur, we recommend verifying by engine serial number.
Do I need any sealants?
Most gaskets install dry. Use only manufacturer-approved sealant where specified by the Cummins service manual.
