4N9539 BH Turbocharger Bearing Housing for Navistar DT817B & Caterpillar Engines

This aftermarket 4N9539 BH bearing housing is a replacement component for turbocharger assemblies in Navistar DT817B and Caterpillar engine applications. It serves as a core support part for heavy-duty truck and industrial engine maintenance, with 14 associated OEM reference numbers including 0R5898 BH and 178206 BH for fitment verification.

Key Specifications

• Part Number: 4N9539 BH
• Product Type: Turbocharger Bearing Housing
• Gross Weight: 5 kg
• Packing: N/A
• Representative OEM References: 0R5898 BH, 178206 BH, 180290 BH

This section lists the core identification data for the 4N9539 BH bearing housing. The part is associated with 14 OEM reference numbers, which serve as critical verification points for buyers. Use these references to cross-check your specific engine application before placing an order.

Application & Compatibility

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

• International > NAVISTAR VARIOUS > NAVISTAR DT817B
• Caterpillar > 3306
• Caterpillar > D379
• Caterpillar > D379A
• Caterpillar > D379B
• Caterpillar
• JOHN-DEERE > 6619
• MACK > MACK TRUCK > MACK 673 EM6 EE6 E6 ETAY673A ENDT675 ETZ675
• MACK > MACK VARIOUS > MACK ET673E
• MACK > EMC6-250 > 285

This bearing housing is listed for Navistar DT817B, Caterpillar, and Mack truck applications. Use the following application clues to verify fitment against your specific engine code and vehicle model before ordering:

• Navistar: DT817B
• Caterpillar: 3306, D379, D379A, D379B
• Mack: 673, EM6, EE6, E6, ETAY673A, ENDT675, ETZ675, ET673E, EMC6-250
• John Deere: 6619

Confirm that your turbocharger assembly matches the 4N9539 BH part number and associated OEM references (e.g., 0R5898 BH, 178206 BH) to ensure correct replacement application.

Technical Notes

The 4N9539 BH bearing housing is a critical structural component that supports the turbocharger shaft and manages lubrication flow. For heavy-duty applications such as the Navistar DT817B and Caterpillar 3306, verifying the oil feed line restrictor and return line drain angle is essential to prevent bearing wear. Buyers should cross-reference the 14 associated OEM numbers, including 0R5898 BH and 178206 BH, against their specific engine service manuals. Confirming these installation parameters helps ensure stable operation and proper oil circulation during the replacement process.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing and worldwide shipping for the 4N9539 BH bearing housing. Our team provides technical fitment support to help verify part number, engine code, and OEM reference numbers before ordering. For fleet parts buyers, we assist in reference checking the 14 associated OEM numbers, such as 0R5898 BH and 178206 BH, against your specific Navistar DT817B or Caterpillar application. Contact our technical support to confirm installation parameters and secure replacement reliability for your heavy-duty maintenance projects.