Caterpillar 3306DI Cylinder Head 8N6796

Revitalize Your Workhorse: Caterpillar 3306DI Cylinder Head Replacement

Ruich Value takes pride in supporting the legacy fleet with premium Heavy Duty Engine Components. The Caterpillar 3306 engine is legendary for its durability in the toughest environments, from African mines to North American logging roads. We provide the hard parts needed to keep these mechanical icons running efficiently, offering factory-spec castings without the prohibitive OEM price tag.

The Caterpillar 3306DI Cylinder Head (OEM 8N6796) is precision-engineered specifically for the Direct Injection (DI) version of the 3306 engine family. Unlike the older Pre-Combustion models, this casting is designed to accommodate direct fuel injection nozzles. We manufacture this head using high-nickel alloy cast iron to resist the thermal stress cracking often seen between the valve bridges in high-hour engines, restoring the compression and power your D6 or 966 loader was built to deliver.

Technical Specifications for 3306 Direct Injection Head

Technician’s Note: Installation & Inspection

Technician’s Note: The most critical check before installation is confirming your engine is Direct Injection (DI). Look at your old head’s combustion face—if it is flat with no pre-chamber holes, you need this 8N6796 head. If you see small inserts (pre-cups) and glow plugs, you have a PC engine and need part number 8N1187 instead. Mixing these up is the #1 cause of installation failure.

Verified Caterpillar 3306DI Equipment Applications

Why Source Heavy Duty Parts from Ruich Value?

• Inventory Reality: The 3306DI is a global workhorse. We keep 8N6796 heads in stock to support remote mining and construction sites with minimal lead time.
• Casting Quality: Our heads feature precise water jacket sand casting to ensure optimal coolant flow, preventing the overheating issues common in cheap aftermarket replacements.
• QC Standard: Each cylinder head is valve-vacuum tested and pressure tested to ensure zero porosity in the iron casting.
• Packaging: Heavy-duty wooden crating ensures this 100kg+ component arrives safely, whether shipped by sea or air.

Complete Caterpillar Cylinder Head Catalog

Ruich Value is your comprehensive source for Heavy Duty Engine Components. We cover the entire history of CAT power, from the vintage 3304/3306 series to the modern C-Series engines.

Category coverage: We supply both Pre-Combustion (PC) and Direct Injection (DI) heads for 3304 and 3306 engines, as well as 3406 and C15 series.

View all specs in our Caterpillar Commercial Truck Cylinder Head Catalog.

Or explore the complete Caterpillar Heavy Duty Engine Components Range

Technical FAQ: Caterpillar 3306DI Cylinder Head

Can I use this 8N6796 head on my 3306PC engine?

No. The 8N6796 is strictly for Direct Injection (DI) engines. It lacks the ports for pre-combustion chambers and glow plugs found on the PC engines. If you have a PC engine (part number 8N1187), this head will not work. Please visually confirm your injection type before ordering.

Does this head come with valves installed?

Our standard offering is a bare cylinder head (casting with valve guides and seats). However, we can assemble a complete loaded head with valves, springs, and rotators upon request. Contact our sales team for pricing on loaded units.

What is the warranty on this replacement head?

Ruich Value offers a 12-month warranty on our cylinder head castings against manufacturing defects, such as cracking or porosity, provided the installation follows standard Caterpillar service procedures.

Request a Wholesale Quote

Looking for reliable 3306DI heads for your parts inventory or machine rebuild? Get a competitive quote today.

Email: [email protected]

WhatsApp/Phone: +86 13889277673