Cummins 3969722 Cylinder Head

Key Features:

• New aftermarket loaded cylinder head for the Cummins ISC / ISL / QSL 24-valve engines
• 24-valve (4 valves per cylinder) configuration
• Fully loaded with valves and springs; includes guides, seats, and injector cups
• High-strength, alloyed cast iron designed for heavy-duty diesel applications
• New — no core required

Specifications:

• Base casting number: 3969722
• Component type: Loaded cylinder head (24-valve)
• Condition: New Aftermarket
• Valve configuration: 24-valve (4 per cylinder), loaded (valves + springs)
• Material: high-strength, alloyed cast iron
• Engine: Cummins ISC (8.3L) / ISL & QSL (8.9L)
• Included: valve guides, valve seats, injector cups, valves, springs

Compatibility / Fitment:

• Cummins ISC (8.3L), ISL and QSL (8.9L) — 24-valve engines
• Valve gate: this is the 24-valve (4V) head — not the 12-valve (2V) 8.3L C head
• Emissions/CPL gate: the ISC/ISL 24V head spans multiple emissions eras and variants — verify your engine CPL, serial, and emissions era before ordering
• Common cross-references: 5256469, 5347975, 5529501, 4935787, 4942139, 4989710, 5347974, 5529500