| Part no. | Cylinder Head 1N4304 | Material | Iron |
| Type | Cylinder Head | Weight | 60Kg |
| Engine No. | 3304DI | Transport Package | Wooden Box |
| Trademark | DIRON | Origin | Luoyang City |
| HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Item Model:Cylinder Head 1N4304
Date First Listed:2024/12/11
Manufacturer:Diron Parts
Part Number:Cylinder Head 1N4304
Part Type:Cylinder Head
Compatible Equipment:3304DI Diesel Engine suitable for CAT Caterpillar

The Cylinder Head 1N4304 is a precision-engineered component designed for the Caterpillar 3304 Direct Injection (DI) diesel engine, critical for sealing the combustion chamber, housing the valves, and facilitating efficient airflow and fuel combustion. This part is vital for maintaining engine performance and reliability in heavy-duty applications, such as wheel loaders, excavators, and motor graders. Available as a new aftermarket, remanufactured, or genuine OEM part, it provides a robust solution for engine maintenance.
Dimensions: Specific dimensions are not publicly detailed, but approximate measurements for 3304 heads are 914.4 mm (length), 304.8 mm (width), and 139.7 mm (height), based on supplier data for similar heads. Typical bare cylinder heads weigh approximately 150-180 lbs (68-82 kg), with loaded assemblies heavier due to pre-installed components.
Material: Constructed from high-grade cast iron or alloy cast iron, designed to withstand high temperatures, pressures, and mechanical stresses in the 3304DI engine. Features precision-machined surfaces for optimal sealing, heat dissipation, and durability.
Design: Engineered to OEM specifications for precise fitment and performance in direct injection 3304 engines. Includes valve seats, guides, and ports optimized for efficient combustion and exhaust flow. Available as a bare head (with valve guides and seats) or a loaded assembly with pre-installed valves, springs, premium valve stem seals, retainers, and injector cups. Incorporates advanced cooling passages to manage engine temperature effectively.
Compatibility: Compatible with Caterpillar 3304 Direct Injection (DI) diesel engines, used in:
Wheel Loaders: 950B, 950E, 930R, 930T.
Excavators: 215, 215B, 215C, 215D, 219, 225, 225B, 225D.
Motor Graders: 120G, 130G, 12G.
Track-Type Tractors: D4E, D4H, D5, D5B, D5H.
Compactors: CB-534, CS-551, CS-553.
Other Applications: Generator sets (SR4, 3304), articulated trucks (D25D, D250B), pipelayers (561D), and wheel tractor-scrapers (615, 615C).
Engines: 3304, 3304B (inline 4-cylinder, 7.0L, 2-valve per cylinder configuration, direct injection), with specific serial numbers (e.g., 4PC, 5CK, 9HK, 10Z, 13Z). Exact compatibility must be verified using the engine’s serial number via CAT SIS, as per Caterpillar’s policy.
Cross-References: 1N4304, 1N-4304, CA1N4304, 0R2587, 0R2672, 7N6544, 7N8874, 7C3904, 4W6504, 360423, 1482132, 148-2132. The 1N4304 is distinct from 8N1187/6N8120 (3