Click image to zoom
NB139840 Turbine Housing Replacement for Yanmar Marine 4TN(A)78-TL
NB139840 turbine housing for RHB31-50001P12NFBRS255AZ turbochargers. Aftermarket replacement application for Yanmar Marine 4TN(A)78-TL and CY26 engines. Verify part number and engine code before ordering.
Subtotal: US$ 38.00
Send an InquiryThis NB139840 turbine housing is an aftermarket replacement component for RHB31-50001P12NFBRS255AZ turbochargers, listed for Yanmar Marine 4TN(A)78-TL and CY26 engine applications. Verify your specific part number and engine code before ordering to ensure correct fitment.
Key Specifications
- Part Number: NB139840
- Product Type: Turbine Housing
- Turbo Model: RHB31-50001P12NFBRS255AZ
- Application Clues: Yanmar Marine 4TN(A)78-TL, 3TN82TE(MY61), and CY26 engines
- Gross Weight: 5 kg
- Packing: N/A
- OEM Reference Numbers: None listed in current data
This section lists the core identification fields for the NB139840 turbine housing. Use these facts to cross-check your existing turbocharger assembly and engine code. The 5 kg gross weight helps confirm the physical scale of the component during inventory verification. Always match the turbo model RHB31-50001P12NFBRS255AZ against your unit before proceeding with an order.
Application & Compatibility
Source application path clues for buyer verification. These are source category/application paths, not confirmed fitment claims:
- YANMAR > YANMAR MARINE > YANMAR 4TN(A)78-TL 3TN82TE(MY61)
- YANMAR > YANMAR (CY26)
This turbine housing is listed for Yanmar Marine 4TN(A)78-TL and CY26 engine applications. Use these application clues as reference points to verify fitment against your specific unit. Confirm the engine code and turbo model RHB31-50001P12NFBRS255AZ match your existing assembly before ordering. This is an aftermarket replacement application; always verify part number NB139840 and mounting details to ensure correct installation.
Technical Notes
The RHB31-50001P12NFBRS255AZ turbo model is associated with Yanmar marine applications, including the 4TN(A)78-TL and CY26 engine series. As a turbine housing component, this part directs exhaust gas flow to the turbine wheel. Buyers should verify the housing flange dimensions and mounting details against their existing assembly. Since no OEM reference numbers are listed in the current data, cross-check the part number NB139840 and engine code to confirm the correct replacement application. This verification step helps prevent ordering errors for similar marine turbo configurations.
B2B Supply
LeadTurbo supports B2B buyers, repair shops, and distributors with volume pricing for NB139840 turbine housings. Worldwide shipping is available for this 5 kg component. Our team provides technical fitment support to help verify the RHB31-50001P12NFBRS255AZ turbo model against your Yanmar Marine 4TN(A)78-TL or CY26 engine application. Contact us for a quote based on your order quantity and destination.
Product FAQ
YANMAR 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 YANMAR.
Compatibility Verify part number NB139840, engine code (4TN(A)78-TL or CY26), vehicle application, production year, and related turbo configuration before ordering. This is an aftermarket replacement application; confirm fitment against your specific unit.
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.
