CAT 105-3797 0R-8742 Caterpillar 3412 Cylinder Head | Engine Rebuild Parts

CAT 105-3797 0R-8742 Caterpillar 3412 Cylinder Head

Heavy-duty OEM-replacement diesel engine cylinder head (Part Nos. 105-3797 / 1053797 and Reman 0R-8742 / 0R8742) engineered for Caterpillar 3412, 3412C, 3412E, 3408, and 3408B/C heavy industrial and marine diesel engines. Manufactured from high-tensile alloy cast iron and precision CNC-machined to rigid OEM tolerances, providing precise combustion chamber integrity, perfect valve seat concentricity, accurate valve guide bore alignment, and optimal coolant flow across high-heat zones. Built to withstand continuous high load, severe thermal cycling, and heavy boost pressure, making it the ideal choice for complete engine rebuilds, cylinder head replacements, and commercial fleet overhauls.

Part Specifications

• Part Numbers: 105-3797 (1053797), 0R-8742 (0R8742)
• Brand: Caterpillar (CAT)
• Engine Model: Caterpillar 3412 / 3412C / 3412E / 3408 / 3408B / 3408C
• Component: Cylinder Head (Bare / Assembled)
• Material: High-Strength Heavy-Duty Alloy Cast Iron
• Condition: New / OEM Replacement
• Country of Origin: China
• HS Code: 8409.99
• Application: Heavy Earthmoving / Mining Equipment / Marine Propulsion / Generator Sets

Compatible Caterpillar Equipment Models

Precision-engineered for Caterpillar heavy machinery, mining haul trucks, and power generation units powered by the 3412 and 3408 engine platforms, including:

• Off-Highway Mining Trucks: 773B, 773D, 775B, 775D, 768C, 769C, 769D
• Large Wheel Loaders & Wheel Dozers: 990, 992C, 992D, 834B
• Track-Type Tractors / Bulldozers: D9N, D9R, D10N, D8L
• Wheel Tractor-Scrapers & Compactors: 651E, 657E, 836
• Marine Engines & Industrial Power Units: 3412 Marine Propulsion, Auxiliary Engines, and Industrial Power Units
• Diesel Generator Sets: 3412 Gensets (500kVA – 800kVA Standby/Prime)
• Please verify engine arrangement number, serial number prefix, and valve configuration before ordering.

Cross-Reference & Alternate Part Numbers

105-3797 | 1053797 | 0R-8742 | 0R8742 | 0R-8743 | 0R8743 | 7N-8876 | 7N8876 | 7N-8877 | 7N8877 | 1W-1736 | 110-5096 | 110-5097 | 248-5514 | CAT1053797

Why Choose Us?

• Global B2B wholesale supply for heavy equipment fleets, marine operators, and engine rebuild centers
• Competitive volume pricing and bulk freight discounts
• 100% factory pressure tested for casting integrity and coolant leaks
• Fast worldwide air express and ocean container dispatch

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