129403-18050 RHB31 Turbocharger for Yanmar Marine 4TN(A)78-TL

This 129403-18050 turbocharger serves as an aftermarket replacement for Yanmar Marine engines, specifically the 4TN(A)78-TL and 3TN82TE(MY61) models. Designed to support RHB31-50001P12NFBRS255AZ applications, it offers a replacement option for marine engine maintenance. Verify OEM reference numbers such as 129189-18010 and MY61 to ensure correct fitment before ordering.

Key Specifications

This turbocharger assembly is identified by part number 129403-18050 and model RHB31-50001P12NFBRS255AZ. It is supplied as a complete unit for marine engine applications. The package dimensions are 21x23x26 cm with a gross weight of 6 kg. Representative OEM reference numbers include 129189-18010, MY61, VA110021, VB110021, and VC110021. Use these references to cross-check your existing unit. Verify all mounting details and flange specifications before finalizing your order.

Application & Compatibility

This unit is listed for Yanmar Marine engines, specifically the 4TN(A)78-TL and 3TN82TE(MY61) models. It serves as a replacement application for turbochargers identified by part number 129403-18050 and model RHB31-50001P12NFBRS255AZ. Buyers should verify their engine serial number and existing turbo configuration against these references. Cross-check OEM reference numbers such as 129189-18010, MY61, VA110021, VB110021, and VC110021 to confirm alignment with your specific marine application. Always inspect mounting flanges and actuator connections before finalizing your order to ensure proper fitment.

Technical Notes

This RHB31 series turbocharger is engineered for marine diesel applications, focusing on stable operation under load. The unit includes standard mounting flanges and oil passages designed for Yanmar 4TN(A)78-TL and 3TN82TE engines. Buyers should inspect the compressor and turbine housings for damage before installation. Verify that the actuator arm travel and spring tension match your specific engine requirements. Proper alignment of the center housing and bearing assembly is critical for long-term reliability. Consult technical fitment support if your application involves modified engine configurations or non-standard intake manifolds.

B2B Supply

LeadTurbo supports B2B buyers with volume pricing for this 129403-18050 turbocharger replacement. Worldwide shipping is available for marine engine parts distributors and repair shops. Our team provides technical fitment support to help verify OEM reference numbers like 129189-18010 and MY61. Contact us to confirm specifications for your Yanmar 4TN(A)78-TL or 3TN82TE application before placing your order.