1W3729 4MF-721 Turbocharger Core for CAT 3306

This aftermarket 1W3729 4MF-721 turbocharger core is a replacement component for CAT 3306 engines, including Caterpillar D6G, 14G, and D6D applications. Verify part number, engine code, and OEM reference numbers 178217, 187167, or 312266 before ordering to ensure correct fitment.

Key Specifications

• Part Number: 1W3729
• Product Type: Turbocharger Core (CHRA)
• Turbo Model: 4MF-721
• Application Clues: CAT 3306 engine; Caterpillar D6G, 14G, D6D
• OEM Reference Numbers: 178217, 187167, 312266
• Packing: Not specified
• Gross Weight: Not specified
• Image Availability: Not available

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

This 1W3729 core is listed for Caterpillar CAT 3306 engine applications, including D6G, 14G, and D6D models. It is associated with OEM reference numbers 178217, 187167, and 312266. Buyers should verify these references against their specific engine and vehicle configuration before ordering. Confirm the turbo model 4MF-721 matches your existing unit. Technical fitment support is available to help confirm correct application details.

Technical Notes

The 4MF-721 core is a fixed-geometry turbocharger component. Verify the compressor wheel diameter and turbine housing geometry against your existing unit. Confirm the bearing housing seal type and shaft runout limits before installation. Cross-reference OEM numbers 178217, 187167, and 312266 to ensure the core matches your specific CAT 3306 engine variant. Technical support can assist with configuration verification.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing and worldwide shipping for the 1W3729 4MF-721 core. Technical fitment support is available to verify part number, engine code, and OEM reference numbers 178217, 187167, or 312266 before ordering. This service helps confirm correct application for CAT 3306 engines in Caterpillar D6G, 14G, and D6D models. Inquire about bulk orders or specific configuration details to ensure the replacement core matches your existing unit.

For B2B stock planning, confirm the 1W3729 part number against your existing core or OEM references 178217, 187167, and 312266 before placing an order. This verification step helps ensure the 4MF-721 core matches your specific CAT 3306 engine variant in Caterpillar D6G, 14G, or D6D applications. LeadTurbo provides technical fitment support to assist with configuration checks and pre-shipment inspection. Volume pricing is available for bulk orders, and worldwide shipping supports global distribution networks. Buyers should verify packing details and gross weight specifications with our team to align with their logistics requirements. This approach reduces the risk of misfitment and supports efficient inventory management for repair shops and distributors.