Cummins 4090035 — Genuine Upper Engine Gasket Kit (Standard Thickness) for 5.9L 24-Valve

MPN: 4090035  |  Kit Type: Upper engine gasket set (head-up)  |  Head Gasket: Standard thickness (includes 3977063)

Complete genuine Cummins upper engine gasket kit for the VP44-era 5.9L ISB. Designed to reseal the cylinder head and all upper interfaces with OE materials and geometry. Ideal for blown head gasket repair, head replacement, or top-end refresh on 1998.5–2002 5.9L 24-valve Ram.

Features & Benefits

• OE materials & sealing profiles for long-term reliability under boost and towing.
• Standard-thickness head gasket for factory compression ratio and quench.
• Comprehensive contents (head gasket, valve cover, manifold, turbo, o-rings, valve stem seals, etc.).
• Direct-fit kit for 24-valve 5.9L ISB (VP44) applications.
• Backed by Cummins for fit, function, and durability.

Verified Fitment (Automotive)

Industrial/Off-Highway: Used primarily on EPA02 5.9L ISB/QSB engines — verify by ESN before ordering.

Specifications

• Kit Contents (high-value highlights): Head gasket 3977063 (std), exhaust manifold gaskets 3946275 (qty 6), valve cover gasket 3935878, intake cover gasket 3938152, turbo gaskets 3519807/3709861, sealing washer 3902425, oil drain gasket 3937706 (superseded by 5264569), o-rings 3883284, 3931824, 3037236 (qty 2), 3922794 (qty 2), 3867043 (qty 6), valve stem seals 3942989 (qty 12) and 3945438 (qty 12).
• Thickness: Standard (factory compression)
• Quantity: 1 kit per engine
• OE Part Number: 4090035
• Cross-References (ID only): 3800853, 3802981, 4089790

Often Paired With

• Lower Engine Gasket Kit: Cummins 3800487 (bottom-end reseal)
• Head Fasteners: ARP 247-4202 head studs (recommended when increasing boost)
• Fluids & Filters: Fresh oil/coolant and filters after reassembly

What’s In The Box

• (1) Complete OEM Cummins Upper Engine Gasket Kit (4090035) with standard-thickness head gasket (3977063) and associated seals/gaskets noted above.
• Fasteners not included (head bolts/studs sold separately).

Installation Tips

• Inspect block deck and cylinder head for flatness and surface finish; follow Cummins spec.
• Clean all mating surfaces; chase threads; verify dowel alignment.
• Use the correct torque sequence and angle specs; re-check valve lash after heat cycle.
• Oil drain gasket: many builders use the updated 5264569 in place of 3937706.

FAQ

WILL THIS FIT MY 1998.5–2002 5.9L 24-VALVE RAM?

Yes. This kit targets 1998.5–2002 VP44 5.9L ISB Ram 2500/3500. Always confirm by VIN/ESN for best results.

DOES IT INCLUDE THE HEAD GASKET?

Yes. It includes the standard-thickness cylinder head gasket 3977063 along with all major upper-end seals/gaskets.

ARE HEAD BOLTS OR STUDS INCLUDED?

No. Fasteners are sold separately. We recommend ARP 247-4202 studs for higher-than-stock boost levels.

WHAT’S THE DIFFERENCE BETWEEN UPPER AND LOWER GASKET KITS?

Upper covers the head-up components (this kit). Lower (e.g., 3800487) covers bottom-end interfaces like oil pan, timing cover, etc.

DOES THIS WORK FOR INDUSTRIAL ISB/QSB 5.9?

Yes, it’s used primarily on EPA02 5.9L ISB/QSB engines in industrial/off-highway applications; verify by ESN.