311144 S4DS-011 Turbocharger Core for CAT 3306 Engine

This 311144 S4DS-011 turbocharger core is an aftermarket replacement unit for Caterpillar 3306 engines, including CAT D6G and D6D applications. It serves as a reference application for buyers verifying fitment against OEM reference numbers such as 0R5722 and 178223 before ordering.

Key Specifications

• Part Number: 311144
• Product Type: Turbocharger Core (CHRA)
• Turbo Model: S4DS-011
• Application Clues: Caterpillar CAT 3306, CAT 3306B, CAT D6G, CAT D6D
• Packing Dimensions: 21 x 23 x 23 cm
• Gross Weight: 10 kg
• OEM Reference Numbers: 0R5722, 178223, 196538, 7C7598, and 21 additional references
• Image Availability: High-resolution studio shots showing front, top, and bottom views of the machined core assembly

Application & Compatibility

Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:

• Caterpillar > CAT > CAT D6G 14G D6D > CAT 3306
• Caterpillar > CAT > CAT EARTH MOVING
• Caterpillar > 3306
• Caterpillar > 3306B
• Caterpillar

This core is listed for Caterpillar 3306 and 3306B engines, including CAT D6G and D6D earth-moving applications. Buyers should verify part number 311144, engine code, and OEM reference numbers such as 0R5722 or 178223 before ordering. The application paths include Caterpillar CAT D6G 14G D6D, CAT EARTH MOVING, and general 3306/3306B series. Confirm fitment against your specific unit and production year to ensure the correct replacement application.

Technical Notes

The S4DS-011 core features a central cylindrical bearing housing with visible mounting flanges and structural ribs. The turbine and compressor wheels are machined with curved blades, visible in the provided studio images. Buyers should inspect the oil feed and return ports for obstructions or corrosion before installation. Check the old unit for foreign object damage (FOD) such as metal shavings; if present, flush the oil and coolant systems to protect the new 311144 core. Verify that water cooling ports match your specific CAT 3306 application requirements before finalizing the order.

B2B Supply

LeadTurbo supports B2B buyers with volume pricing for bulk orders of the 311144 S4DS-011 core. Worldwide shipping is available for repair shops, rebuilders, and distributors. Our team provides technical fitment support to help verify part number 311144, engine code CAT 3306, and OEM reference numbers such as 0R5722 before ordering. Contact us for quotes on fleet or distributor inventory needs.