The Cat® 3406C Reman Long Block is a complete in-frame overhaul solution designed to restore engine performance, improve fuel efficiency, and extend the service life of your Cat® 3406C engine. This remanufactured long block kit includes essential components to bring your engine back to like-new condition, making it ideal for both new and second-life engine applications. Designed for heavy-duty and commercial use, this kit ensures your engine operates with maximum reliability and reduced downtime.

Features

• Premium Filtration: Includes high-quality Cat® oil and fuel filters, providing superior protection and helping to maximize the engine’s lifespan.
• Comprehensive Coverage: Features parts often overlooked in other overhaul kits, such as exhaust sleeves and manifold studs, ensuring a more complete engine rebuild.
• Time-Efficient Technology: Equipped with Cat® Reman cylinder pack assemblies, reducing labor time by 4–6 hours when compared to other standard kits.
• Gold Kit Components:
• Cat Replacement cylinder head assembly
• Cat Replacement fuel injectors
• Cat Replacement water pump
• Cat Replacement oil pump

Benefits

• Significantly improves engine performance, fuel efficiency, and overall productivity by restoring the engine to optimal condition.
• Increases engine reliability, ensuring long-lasting performance and minimizing operational disruptions.
• Reduces rebuild costs and downtime by providing factory-tested components, making installation quicker and more cost-effective.

Kit Contents

Compatible Engine S/N

• 6NZ00001 - UP
• 9NZ00001 - UP

Horsepower Range

• 435 - 550 HP

Compatible Model List

Part Specifications

• Part Number: 20R-3646
• Manufacturer: Caterpillar