031-1119 Caterpillar C9.3B Radiator Cap | Engine Cooling System Parts

CAT 031-1119 Caterpillar C9.3B Radiator Cap

OEM-quality radiator cap for Caterpillar C9.3B diesel engines. Maintains the correct pressure in the engine cooling system, raising the boiling point of the coolant to prevent overheating and allowing the coolant to expand and contract safely through the overflow reservoir. Manufactured to OEM specifications for correct pressure rating, sealing surface dimensions, and valve operation, ensuring reliable cooling system pressurization and long service life. Essential for cooling system maintenance and radiator cap replacement. Ideal for global parts retailers, repair service providers, and heavy-duty diesel engine workshops.

Part Specifications

• Part Number: 031-1119
• Brand: Caterpillar (CAT)
• Component: Radiator Cap
• Condition: New / OEM Replacement
• Country of Origin: China
• HS Code: 8409.99
• Application: Industrial / Construction / Power Generation

Compatible Engine Models

• Caterpillar C9.3B
• Please confirm compatibility with your engine serial number before ordering.

Cross Reference Numbers

031-1119 | 0311119 | CAT0311119

Why Choose Us?

• Global B2B wholesale supply
• Bulk pricing available — contact us for a quote
• Fast international shipping
• OEM & aftermarket options

Need bulk pricing or a custom quote? Submit an RFQ →