Product Description
CUMMINS 4955210 OEM EXHAUST VALVE – ISB 5.9L/6.7L (1998.5–2018)
The CUMMINS 4955210 OEM EXHAUST VALVE is the factory exhaust valve used across ISB/QSB 5.9L and 6.7L platforms from 1998.5–2018. It’s built to handle turbocharged exhaust temperatures and long-term daily-driver abuse, restoring proper sealing, EGT control, and compression in your 24-valve Cummins. Whether you’re freshening up a high-mile Ram work truck or rebuilding a hard-working ISB/QSB engine, this is the same valve Cummins put in it from the factory—not a generic aftermarket substitute.
Features & Benefits
- Genuine Cummins exhaust valve for ISB 5.9L & 6.7L (no off-brand metallurgy guesswork).
- OE valve face and stem geometry for consistent sealing and long service life.
- Heat-resistant alloy construction to survive sustained towing and high EGT operation.
- Drop-in fit with OEM keepers/locks and valve stem seals in factory 24-valve heads.
- Helps stabilize compression, idle quality, and emissions after top-end repair.
Verified Fitment
This exhaust valve fits most 24-valve ISB 5.9L and 6.7L applications that originally shipped with Cummins part number 4955210. Always verify by VIN/Engine Serial Number (ESN) if your cylinder head has been replaced or modified.
- 1998.5–2002 Ram 2500/3500 – 5.9L ISB 24V (VP44)
- 2003–2007 Ram 2500/3500 – 5.9L ISB 24V common-rail
- 2007.5–2018 Ram 2500/3500 – 6.7L ISB 24V common-rail
- Industrial / Off-Highway – ISB/QSB 5.9 & 6.7 variants using 4955210 exhaust valves (confirm by ESN/CPL before ordering)
Each engine uses 12 exhaust valves. This listing is for one (1) exhaust valve; order the correct quantity for your build.
Cross-Reference & Related Cummins Parts
For a complete top-end refresh, pair your 4955210 exhaust valves with other genuine Cummins parts available from CPP Diesel:
- Intake valves: CUMMINS 3802924 OEM INTAKE VALVE KIT – ISB 5.9L/6.7L (1998.5–2018)
- Rocker arm assemblies: CUMMINS 4995602 OEM ROCKER LEVER ASSEMBLY – RAM 5.9L/6.7L (1998.5–2018)
- Cylinder head alignment dowels: CUMMINS 3902343 OEM CYLINDER HEAD ALIGNMENT DOWEL (RING DOWEL) – 5.9L/6.7L (1989–2018)
- 5.9L 24V head gasket (standard thickness): CUMMINS 3977063 OEM CYLINDER HEAD GASKET (STANDARD THICKNESS) – RAM 5.9L 24V (1998.5–2002)
- 6.7L upper engine gasket kit: CUMMINS 4376090 OEM UPPER ENGINE GASKET KIT – ISB 6.7L (2013–2018)
For catalog cross-reference only (not sold in this listing): PAI 192141 kit and Interstate-McBee M-4955210 are popular aftermarket alternatives that reference Cummins 4955210.
What’s In The Box
- (1) Genuine Cummins exhaust valve – part number 4955210
Note: Valve stem seals, keepers/locks, springs, and other hardware are sold separately. See related Cummins part numbers above for a complete top-end parts list.
Installation Notes
- Inspect valve seats and guides for wear; recondition or replace as needed.
- Always install new valve stem seals during valve replacement.
- Check installed height and spring pressure to Cummins specifications.
- After reassembly, set valve lash per factory procedure and recheck after initial heat cycle.
Specifications for cummins 4955210
| Attribute | Value |
|---|---|
| Brand | Cummins – Genuine OEM |
| Part Number | 4955210 |
| Engine Platforms | ISB/QSB 5.9L & 6.7L (automotive and industrial applications using 4955210) |
| Application (Automotive) | 1998.5–2018 Ram 2500/3500 5.9L & 6.7L Cummins (verify by VIN/ESN) |
| Component Type | Exhaust valve (24-valve cylinder head) |
| Quantity Required | 12 exhaust valves per engine (sold individually) |
| UPC | 193807254360 |
| GTIN | 193807254360 |
| Cross Reference (for ID) | PAI 192141 (kit reference), Interstate-McBee M-4955210 (aftermarket), Cummins valve kit family references such as 3802967 |
| E-Codes | Not specifically listed by manufacturer |
| Approx. Shipping Weight | ~0.5 lb (single valve, packaged) |
| Package Dimensions (Approx.) | 7.0 in (L) x 1.4 in (W) x 1.4 in (H) |
| Country of Origin | As marked on genuine Cummins packaging (typically MX/US depending on batch) |
| Prop 65 Warning | Not specifically listed. Treat as standard automotive service part; follow all local regulations when handling engine oils, fuels, and exhaust-related components. |
FAQ
WILL THIS FIT MY 1998.5–2018 5.9L/6.7L CUMMINS RAM?In most cases, yes. CUMMINS 4955210 is the OEM exhaust valve used across 24-valve 5.9L (1998.5–2007) and 6.7L (2007.5–2018) ISB engines. Because heads and long blocks are often swapped, CPP Diesel always recommends confirming fitment by VIN or Engine Serial Number (ESN) before you order.
HOW MANY EXHAUST VALVES DOES MY ENGINE REQUIRE?
All 24-valve 5.9L and 6.7L ISB Cummins engines use 12 exhaust valves and 12 intake valves. This listing is for a single exhaust valve, so most full rebuilds will require a quantity of 12.
SHOULD I REPLACE INTAKE VALVES AND SEALS AT THE SAME TIME?
It’s best practice to refresh the entire top end when the head is off. Pair these exhaust valves with CUMMINS 3802924 OEM INTAKE VALVE KITS and new valve stem seals as specified by Cummins for your ESN. This helps ensure balanced flow and long-term sealing.
CAN I MIX NEW 4955210 EXHAUST VALVES WITH OLD VALVES?
While you can technically replace only damaged valves, CPP Diesel recommends replacing all valves on the affected bank or the complete set whenever there is significant wear, seat damage, or a dropped valve incident. This keeps seat contact patterns and installed heights consistent across the head.
DO I NEED TO HAVE THE HEAD MACHINED WHEN INSTALLING NEW VALVES?
Any time valves are replaced, the seats and guides should be inspected and serviced by a qualified machine shop. Proper seat angle, contact width, and guide clearance are critical for long valve life—especially on turbocharged diesel applications like the 5.9L and 6.7L Cummins.
IS THIS PART GENUINE CUMMINS OR AFTERMARKET?
This listing is for a genuine Cummins 4955210 OEM exhaust valve purchased through CPP Diesel’s Cummins parts distribution channels. If you prefer an aftermarket alternative, CPP also offers Interstate-McBee options in separate listings, but this SKU is Cummins-branded OEM only.
