157701 4HD-755 Turbocharger Core Replacement for CAT D353D

This aftermarket 157701 4HD-755 turbocharger core is a replacement component for Caterpillar D353D and D398B applications. Verify part number, engine code, and OEM reference 178140 against your specific unit before ordering to ensure correct fitment.

Key Specifications

• Part Number: 157701
• Product Type: Turbocharger Core (CHRA)
• Turbo Model: 4HD-755
• OEM Reference: 178140
• Application Clues: Caterpillar D353D, D398B
• Image Availability: Not provided
• Gross Weight: Not specified
• Packing: Not specified

Verify the physical dimensions and shaft alignment of the 157701 core against your existing unit. Confirm the housing orientation matches your engine layout before finalizing the order.

Application & Compatibility

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

• Caterpillar > CAT > CAT D353D
• Caterpillar > D398B

This core is listed for Caterpillar D353D and D398B applications. The supplied data associates part number 157701 with OEM reference 178140. Use these references to verify fitment against your specific engine and turbo configuration. Confirm the physical mounting position and housing orientation match your existing unit before ordering. For B2B inquiries, provide your engine code and production year to technical support for fitment confirmation.

Technical Notes

The 4HD-755 core is a mechanical component where the turbine and compressor wheels are mounted on a central shaft within a bearing housing. This assembly is critical for maintaining rotational balance and proper clearances within the turbocharger. For Caterpillar D353D and D398B applications, verify the shaft diameter, seal ring dimensions, and housing orientation against your existing unit. Technical support can assist in confirming these details using OEM reference 178140 and part number 157701. Ensure the core is stored in a clean, dry environment to prevent contamination of the bearing surfaces before installation.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing for the 157701 4HD-755 core. Worldwide shipping is available for international orders. Technical fitment support is provided to verify part number, engine code, and OEM reference 178140 against your specific Caterpillar D353D or D398B application. Submit your unit details for pre-shipment inspection and fitment confirmation before finalizing your order.

For B2B stock planning, maintain inventory of the 157701 core based on specific Caterpillar D353D and D398B service demand. Since packing and gross weight details are not specified in the current data, request updated logistics information from LeadTurbo to accurately calculate shipping costs and warehouse space. When managing multiple units, label each core with its associated OEM reference 178140 to streamline retrieval and reduce handling errors. Technical support can assist in verifying these logistics details alongside fitment confirmation for your fleet or repair shop requirements.