Caterpillar 3412B Cylinder Head 7W2243

Restore V12 Power: Caterpillar 3412B Cylinder Head for Mining & Marine

Ruich Value is a specialized supplier of Industrial Diesel Engine Components for the mining, aggregate, and power generation sectors. The Caterpillar 3412B is a legendary V12 workhorse, powering some of the largest earthmoving machines on the planet. We provide the heavy-duty castings necessary to overhaul these massive engines, ensuring your D10 dozer or marine vessel operates at peak efficiency.

The Caterpillar 3412B Cylinder Head (OEM 7W2243) is engineered specifically for the Direct Injection (DI) version of the 3412 platform. Unlike the older pre-combustion heads, this casting is designed to handle the higher injection pressures and thermal loads of modern mining cycles. Manufactured with high-nickel alloy iron, it offers superior resistance to deck cracking and valve seat recession, extending the service life of your heavy equipment fleet.

Technical Specifications for 3412 Direct Injection Head

Technician’s Note: Installation & Inspection

Technician’s Note: The 3412 engine family has two distinct head designs: Pre-Combustion (PC) and Direct Injection (DI). This part (7W2243) is strictly for DI engines. Installing this on a PC engine block will result in piston interference and catastrophic failure. Always check your old head: if it has glow plugs and pre-cups, you need the 7N0848, not this one.

Verified Caterpillar 3412B Heavy Equipment Applications

Why Source Mining Grade Parts from Ruich Value?

• V12 Expertise: We specialize in large-bore engine components. Our 3412B heads are casting-verified to ensure consistent coolant flow across all 12 cylinders, preventing hot spots.
• Cost Efficiency: Rebuilding a V12 engine requires two cylinder heads. Our aftermarket solution offers significant savings over dealer prices without sacrificing casting density.
• QC Standard: Rigorous hydrostatic pressure testing ensures these heads can withstand the intense cylinder pressures of heavy load factors in mining.
• Packaging: Shipped in reinforced, heavy-duty crates to handle the weight and ensure safe arrival at remote mine sites.

Complete Caterpillar Cylinder Head Catalog

Ruich Value is your trusted partner for Industrial Diesel Engine Components. From the 3306 workhorse to the 3412 mining giant, we cover the full spectrum of Caterpillar heavy power.

Category coverage: Our inventory includes heads for 3304, 3306, 3406, 3408 (V8), and 3412 (V12) engines.

View all specs in our Caterpillar Industrial Diesel Cylinder Head Catalog.

Or explore the complete Caterpillar Heavy Duty Engine Components Range

Technical FAQ: Caterpillar 3412B Cylinder Head

Does this head fit the 3408 engine?

No. While the 3408 (V8) and 3412 (V12) share many internal components like pistons and valves, the cylinder heads are physically different due to the block length and bolt pattern spacing. The 3408 uses a different casting (e.g., 7W2225 for DI).

Is this head interchangeable for Left and Right banks?

Yes, on the 3412 series, the cylinder heads are typically symmetrical and can be installed on either the Left or Right bank of the V12 block. However, always verify if your specific arrangement requires unique accessory mounting holes.

Can I replace my 7N0848 head with this 7W2243?

Absolutely not. 7N0848 is for Pre-Combustion (PC) engines. 7W2243 is for Direct Injection (DI) engines. The fuel injection systems, pistons, and compression ratios are completely different. You must replace like for like.

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Rebuilding a 3412 V12? Contact us for bulk pricing on cylinder head pairs. We support engine rebuilders globally.

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