Caterpillar 3304 Crankshaft 4N-7692 for CAT D4E Dozer

Uncompromising Job-Site Durability: Forged Caterpillar 3304 Crankshafts

Industrial Diesel Engine Components form the backbone of the construction world, and Ruich Value delivers high-strength aftermarket solutions to keep your legacy equipment running. We specialize in sourcing and manufacturing critical internal engine parts for Caterpillar’s legendary yellow iron, ensuring your machinery maintains its value and productivity.

This forged steel crankshaft, referencing OEM 4N-7692, is engineered specifically for the prolific Caterpillar 3304 engine series found in classic dozers like the D4E and loaders like the 951C. Essentially the “4-cylinder brother” of the famous 3306, this crankshaft is built to withstand extreme torque loads. Addressing common wear issues in high-hour engines, our units feature induction-hardened journals for superior fatigue resistance. Whether you are rebuilding a vintage grader or a workhorse dozer, our 3304 crankshaft restores the uncompromising reliability expected from Caterpillar engineering.

Technical Specifications for CAT 3304 Forged Crankshaft

Technician’s Note: Installation & Inspection

Technician’s Note: The CAT 3304 engine relies heavily on proper crankshaft end-play. When installing the 4N-7692 crankshaft, it is critical to use new, high-quality thrust washers and verify the clearance is within OEM specs (typically 0.003″ – 0.010″). Excessive end-play is a leading cause of block damage in these engines.

Verified CAT 3304 Engine & Equipment Applications

Why Source Heavy Duty Parts From Ruich Value?

• Forged Integrity: We strictly supply forged steel crankshafts for the 3304 application to ensure they can handle the immense torque of dozing and grading, far superior to cast iron alternatives.
• Dimensional Precision: Journals are ground to precise OEM tolerances to ensure correct oil film thickness and compatibility with standard bearing sets.
• Legacy Support: We specialize in parts for older, high-value machinery like the D4E, ensuring you can keep your trusted fleet operational without paying dealer premiums.
• Quality Assurance: Each crankshaft undergoes magnetic particle inspection (MPI) to detect any surface defects before leaving our facility.

Complete Caterpillar Crankshaft Catalog

Ruich Value supports the maintenance of global heavy infrastructure with a complete line of Industrial Diesel Engine Components. From the compact 3304 to the massive C15, our crankshaft catalog covers the prime movers of your fleet.

Category coverage: Our inventory includes forged crankshafts for CAT 3306, S6K, 3066, C6.4, C7, C9, C15, and 3406 series engines.

View all specs in our Industrial Diesel Engine Components Crankshaft Catalog.

Or explore the complete Caterpillar Industrial Diesel Engine Components Range

Technical FAQ: Caterpillar 3304 Crankshaft

Q: Is the 3304 crankshaft interchangeable with the 3306?

A: No. While the 3304 is essentially a 4-cylinder version of the 6-cylinder 3306, the crankshafts are physically different in length and cannot be interchanged. However, they do share many other components like pistons, rods, and valves.

Q: Does this crankshaft fit the older 3304 engines?

A: The 4N-7692 is the standard crankshaft for most 3304 engines (Direct Injection and Precombustion Chamber types). However, for very early serial numbers or specific “PC” engines, please provide your engine serial number to our team to confirm compatibility, especially regarding the nose gear fitment.

Q: What material is used for the Ruich Value 3304 crankshaft?

A: This unit is manufactured from Forged Steel. Ruich Value does not supply cast iron crankshafts for heavy-duty dozer applications, as the risk of fatigue failure under load is too high.

Request a Wholesale Quote

Customized/billet crankshaft development based on drawings or samples is also possible.

Email: [email protected]

WhatsApp/Phone: +86 13889277673