Cummins 3924606 — Genuine Tappet Cover Noise Panel for 5.9L 12-Valve

MPN: 3924606  |  Also Known As: pushrod/tappet cover noise panel, valvetrain noise shield  |  Cross-Refs (ID only): replaces 3924605; Interstate McBee M-3924606

OEM sound-dampening shield that mounts over the pushrod/tappet cover on 5.9L Cummins 12-valve engines. It reduces valvetrain noise and adds an extra barrier against debris and heat. Direct-fit for 1994–1998 Ram 2500/3500 5.9L 12V. Hardware typically re-used (see FAQ).

Features & Benefits

• Factory fit & NVH performance—engineered by Cummins to quiet valvetrain tick.
• Durable OE construction for heat, oil, and vibration resistance.
• Protects the tappet/pushrod cover from debris and incidental contact.
• Drop-in replacement—no modifications required on ’94–’98 12V applications.

Verified Fitment (Automotive)

Compatibility Notes:

• Does not fit 1998.5–2002 24-valve VP44 engines.
• Some B-Series industrial variants use noise panels—verify by ESN for non-automotive engines.

Specifications

• Type: Tappet/pushrod cover noise panel (sound-dampening shield)
• OE Part Number: 3924606 (replaces 3924605)
• Mounting Location: Over the pushrod/tappet (side) cover
• Typical ship dims/weight: ~26.75" L × 5" W × 1" H; ~1.65 lb (for packaging)

Often Paired With

• Tappet cover gasket: Cummins 3284623 (with optional grommet seals 4994848)
• Pushrod/tappet cover (if damaged): common Cummins cover reference 3911821

What’s In The Box

• (1) Genuine Cummins Tappet Cover Noise Panel (3924606)
• Mounting hardware not included; reuse OEM fasteners where applicable.

Installation Tips

• Confirm engine is a 5.9L 12-valve (1994–1998) before ordering.
• Clean mating areas; ensure the pushrod/tappet cover and gasket are in good condition.
• Reuse or replace hardware as needed; torque to factory spec.

FAQ

WILL THIS FIT MY 1994–1998 12-VALVE CUMMINS?

Yes—3924606 is the OEM noise panel for 1994–1998 Ram 2500/3500 with the 5.9L 12-valve engine.

DOES THIS FIT 1998.5–2002 24-VALVE (VP44)?

No—this panel is for 12-valve applications only and is not intended for stock 24-valve VP44 engines.

DOES IT INCLUDE MOUNTING HARDWARE?

No—hardware is typically reused from the original panel. Replace fasteners if worn or damaged.

WHAT GASKET/SEALS SHOULD I USE?

Reseal the pushrod/tappet cover with Cummins 3284623 and optional grommet seals 4994848 when servicing in this area.

IS THIS A GENUINE CUMMINS PART?

Yes—3924606 is a genuine Cummins component for proper fit and durability.