Click image to zoom
NN173504 Turbocharger Journal Bearing for Isuzu 6SD1T
NN173504 journal bearing for RHC7-12307HQ41NFBRL6424CC. Aftermarket replacement application for Isuzu 6SD1T engines. Verify part number and engine code before ordering.
NN173504 is an aftermarket replacement journal bearing for the RHC7-12307HQ41NFBRL6424CC turbocharger, designed for Isuzu 6SD1T engines in Hitachi EX300-1 excavators. This component supports stable turbo operation in heavy-duty construction equipment; verify your specific engine code and turbo model before ordering.
Key Specifications
- Part Number: NN173504
- Product Type: Journal bearing
- Turbo Model: RHC7-12307HQ41NFBRL6424CC
- Gross Weight: 0.03 kg
- Packing: N/A
- OEM Reference Numbers: None provided
- Image Availability: Yes
This aftermarket replacement component is a cylindrical metal bearing sleeve with a polished inner bore and machined outer surfaces. Visible features include small circular through-holes on the outer wall and a copper-colored metallic finish. These visual details help buyers confirm the physical form factor matches their existing part before ordering.
Application & Compatibility
Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:
- HITACHI > HITACHI EX300-1 > ISUZU 6SD1T(CIAQ)
- HITACHI > HITACHI EX300-3C > ISUZU 6SD1T(CIBQ)
- SUMITOMO > SUMITOMO S220 > ISUZU 6BG1(CIAF)
This journal bearing is a reference application for Hitachi EX300-1 and EX300-3C excavators equipped with Isuzu 6SD1T engines, as well as Sumitomo S220 machines with Isuzu 6BG1 engines. These vehicle and engine codes serve as verification clues rather than confirmed fitment. Buyers should cross-check the turbo model RHC7-12307HQ41NFBRL6424CC against their specific equipment configuration. Since no OEM reference numbers are provided for this part, verify the part number NN173504 and engine code before ordering to ensure the correct replacement component is selected for your rebuild or maintenance project.
Technical Notes
The RHC7-12307HQ41NFBRL6424CC turbocharger is a reference configuration for Isuzu 6SD1T and 6BG1 engines in construction equipment. This journal bearing supports the turbo shaft; verify the specific turbo model and engine code on your machine before ordering. No OEM reference numbers are listed for this part, so cross-check the part number NN173504 against your existing component or service manual. Confirm the physical dimensions and bore size match your current part to ensure proper installation and stable operation.
B2B Supply
LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing for NN173504 journal bearings. Technical fitment support is available to help verify part numbers, engine codes, and turbo configurations before ordering. Worldwide shipping is offered for this aftermarket replacement component. Contact the supplier to confirm specific application details for Hitachi EX300-1, EX300-3C, or Sumitomo S220 machines. Verify your equipment's Isuzu 6SD1T or 6BG1 engine code and turbo model RHC7-12307HQ41NFBRL6424CC to ensure the correct replacement part is selected for your maintenance or rebuild project.
Product FAQ
HITACHI and other product, brand and model names are the property of their respective owners and are used for reference and application-lookup only. LeadTurbo is not affiliated with or endorsed by HITACHI.
Compatibility Verify part number NN173504, engine code (e.g., Isuzu 6SD1T), vehicle application, and OEM reference numbers before ordering. This part is a reference application for Hitachi EX300-1 and Sumitomo S220; confirm fitment with your specific turbo configuration.
Customer Reviews
Share installation notes, fitment feedback, or service experience for this product.
No customer reviews have been added for this product yet.
For More Information
Frequently Asked Questions
What types of turbocharger spare parts do you offer? Warranty, shipping, quality and more.
Complete Turbo Units
Complete turbo units designed for rigorous heavy-duty use where OEM units may fall short.
CHRA / Core Assemblies
Brand-new compatible CHRA cores — like-new performance at a fraction of replacement cost.
Turbine Wheels & Shafts
Precision-balanced turbine shafts engineered from inside out for superior durability.
Turbine Housings
Silicon-molybdenum (Si-Mo) nodular cast iron — engineered for extreme heat resistance.
Compressor Housings
OEM-matched geometry and surface finish — advanced casting and machining for perfect fitment.
Bearing Housings
Rock-solid platform engineered for high-output rebuilds — the foundation for performance.
Compressor Wheels
Aluminum, stainless steel, or titanium alloys — precision machined for superior responsiveness.
