4N6860 TW4B91 Turbocharger Core for CAT 3304

This aftermarket 4N6860 TW4B91 turbocharger core is a replacement application for CAT 3304 engines in earth moving equipment. It serves as a reference part for buyers verifying fitment against OEM numbers such as 408077-0102 and 0R5888.

Key Specifications

• Part Number: 4N6860
• Product Type: Turbocharger Core (CHRA)
• Turbo Model: TW4B91
• Application Clues: CAT 3304, CAT 3304T, CAT 120G, CAT 515, CAT D4E
• Packing Dimensions: 18 x 18 x 21 cm
• Gross Weight: 4 kg
• Representative OEM References: 408077-0102, 0R5888, 4N4780
• Image Availability: High-resolution front, top, and bottom views showing compressor/turbine wheels and bearing housing

Application & Compatibility

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

• CAT > CAT EARTH MOVING > CAT 3304
• CAT > CAT 120G > CAT 3304T 7000CC 4L
• CAT > CAT 515 > CAT 3304 4L7000CC
• CAT > CAT D4E > CAT 3304 7000CC 4L
• CAT > CAT EARTH MOVING

This core is listed for CAT 3304 and CAT 3304T engines in earth moving equipment, including CAT 120G, CAT 515, and CAT D4E applications. Buyers should verify the part number 4N6860, turbo model TW4B91, and engine code against their specific unit before ordering. Cross-check OEM reference numbers such as 408077-0102 and 0R5888 against the old turbo tag to confirm fitment. Inspect the central bearing housing, threaded mounting holes, and water-cooled housing design on the existing unit to ensure the replacement core matches the visible configuration. This is an aftermarket replacement application; confirm all details with technical fitment support.

Technical Notes

The 4N6860 TW4B91 core features a water-cooled housing design with visible coolant passages, which is a key verification point for buyers. Inspect the central bearing housing and threaded mounting holes on your existing unit to ensure they match this configuration. The compressor and turbine wheels exhibit a metallic finish, while the turbine housing section has a dark, cast appearance. Verify these visual details against your old turbo tag before ordering. This core is associated with CAT 3304 and 3304T engines; confirm the specific engine code and production year to ensure the replacement application is correct for your fleet or equipment.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing for the 4N6860 TW4B91 core. Worldwide shipping is available for fleet and bulk orders. Our technical fitment support team can help verify the 56 associated OEM reference numbers, including 408077-0102 and 0R5888, against your specific CAT 3304 or 3304T engine configuration. Contact us to confirm part number, engine code, and application details before placing an order to ensure the replacement application matches your equipment.