Cummins 4955210 — Genuine Exhaust Valve for ISB 5.9L & 6.7L

MPN: 4955210  |  Also Known As: exhaust valve kit, valve with keepers/collets  |  Applications: ISB/QSB 5.9 & 6.7 automotive and industrial

Genuine Cummins exhaust valve engineered to maintain proper sealing and flow under high heat and turbocharged pressure. Direct-fit for 24-valve 5.9L (1998.5–2007) and 6.7L (2007.5–2018) Ram applications. Sold individually; 12 exhaust valves required per engine.

Features & Benefits

• OE geometry & heat-resistant alloys for durability in high-temp conditions.
• Factory tolerances ensure proper seat contact and long service life.
• Drop-in fit for ISB 24-valve cylinder heads (5.9 CR/VP44 and 6.7).
• Stabilizes compression & EGT control by restoring exhaust sealing.
• Backed by Cummins quality for fit, function, and reliability.

Verified Fitment (Automotive)

Industrial/Off-Highway: ISB/QSB 5.9 & 6.7 variants. Verify by ESN before ordering.

Specifications

• Type: Exhaust valve (24-valve ISB head)
• OE Part Number: 4955210
• Platform: Cummins ISB/QSB 5.9 & 6.7 (automotive & industrial)
• Quantity Required: 12 per engine (sold individually)
• Cross-References (for identification): PAI 192141 (kit), related Cummins valve kit 3802967 (family reference)

Often Paired With

• Valve stem seals: 3955393 (commonly used intake/exhaust seal, 24 required) · 3955394 (exhaust-specific per some catalogs)
• Valve springs/keepers: OE-spec components recommended when rebuilding the head
• Head gasket set: Replace if the head is removed for valve service

What’s In The Box

• (1) Genuine Cummins Exhaust Valve (4955210)
• Related seals/springs sold separately (see “Often Paired With”).

Installation Tips

• Inspect valve seats and guides; recondition or replace as needed.
• Check installed height and spring pressure to OE spec.
• Use new valve stem seals and lubricate stems during assembly.
• Verify lash after warm-up and recheck after the initial heat cycle.

FAQ

WILL THIS FIT MY 1998.5–2018 5.9L/6.7L CUMMINS RAM?

Yes—4955210 is used across 24-valve 5.9L (1998.5–2007) and 6.7L (2007.5–2018) applications. Confirm by VIN/ESN if your cylinder head has been changed.

HOW MANY DO I NEED?

There are 12 exhaust valves per engine. This part is sold individually.

DO I NEED NEW VALVE STEM SEALS?

Yes—best practice is to replace seals during valve service. Common choices include 3955393 (often listed for all 24 valves) or 3955394 (exhaust-specific in some catalogs).

IS THIS A GENUINE CUMMINS PART?

Yes—this is an OEM Cummins exhaust valve.

WHAT ENGINES OUTSIDE TRUCKS USE THIS VALVE?

It appears on various ISB/QSB 5.9 & 6.7 industrial builds. Always verify by ESN before ordering for industrial equipment.