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NB137143 Turbo Heat Shield RHB31GW-55001GP7NWBRS255A

Aftermarket replacement heat shield, part number NB137143, for RHB31GW-55001GP7NWBRS255A. Reference application includes Yanmar 4JHL-HT(MY65) and Isuzu 4EC1T. Verify engine code and turbo configuration before ordering.

Orders without stock ship approximately 60 days after ordering. Estimated ship date if ordered today: .

Type Heat shield On backorder — orders accepted Part # NB137143 Models RHB31GW-55001GP7NWBRS255A Packing N/A
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12-Month Warranty Shipping to Canada only. OEM-Grade Quality

This aftermarket replacement heat shield, part number NB137143, is designed for the RHB31GW-55001GP7NWBRS255A turbocharger. It serves as a reference application for Yanmar 4JHL-HT(MY65) marine engines and Isuzu 4EC1T light commercial vehicles. Verify your specific engine code and turbo configuration before ordering to ensure correct fitment.

Key Specifications

  • Part Number: NB137143
  • Product Type: Heat Shield
  • Turbo Model: RHB31GW-55001GP7NWBRS255A
  • Reference Applications: Yanmar 4JHL-HT(MY65), Isuzu 4EC1T(VIAL), Yanmar AY49
  • OEM Reference Numbers: Not provided in source data
  • Packing: N/A
  • Gross Weight: Not specified
  • Image Availability: Not available

Use these fields to cross-check your existing part or service manual. If your unit uses a different turbo model or housing configuration, verify the heat shield mounting details and exhaust flow clearance before proceeding with the replacement.

Application & Compatibility

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

  • YANMAR > YANMAR MARINE > YANMAR 4JHL-HT(MY65)
  • ISUZU > ISUZU GEMINI 1,5L TD (JT) > ISUZU 4EC1T(VIAL)
  • YANMAR > YANMAR (AY49)

This heat shield is listed for the RHB31GW-55001GP7NWBRS255A turbocharger, with reference applications including Yanmar 4JHL-HT(MY65) marine engines, Isuzu 4EC1T(VIAL), and Yanmar AY49. These application paths serve as verification clues rather than confirmed fitment. Buyers should cross-check the part number NB137143 against their specific engine code, vehicle model, and production year. Verify mounting details and exhaust flow clearance to ensure the shield does not interfere with turbocharger operation. Technical fitment support is available to assist with application confirmation before ordering.

Technical Notes

The RHB31GW-55001GP7NWBRS255A turbocharger is associated with marine and light commercial applications, including Yanmar 4JHL-HT(MY65) and Isuzu 4EC1T(VIAL). No specific VNT, variable-geometry, or oil-cooling configuration is confirmed in the source data for this part. Buyers should verify the heat shield mounting details, exhaust flow clearance, and turbo serial number against their specific unit. Technical fitment support is available to assist with application confirmation and pre-shipment inspection requirements.

B2B Supply

LeadTurbo supports B2B buyers, repair shops, and distributors sourcing NB137143 heat shields for RHB31GW-55001GP7NWBRS255A turbochargers. Volume pricing is available for bulk orders, and worldwide shipping is supported for marine and commercial vehicle parts. Technical fitment support is provided to help verify engine codes, turbo configurations, and mounting details before shipment. Buyers can request pre-shipment inspection details and application confirmation to reduce return risk. For fleet or rebuild operations, contact our team with your specific engine and turbo serial numbers to confirm the correct replacement application.

Product FAQ

The NB137143 heat shield is a reference application for Yanmar 4JHL-HT(MY65), Isuzu 4EC1T(VIAL), and Yanmar AY49. Verify your specific engine code and turbo model before ordering.

Yes, NB137143 is listed for the RHB31GW-55001GP7NWBRS255A turbocharger. Confirm your turbo serial number and housing configuration to ensure correct fitment.

Inspect the wastegate flapper valve for proper seating and free movement during installation. Ensure the heat shield does not interfere with the valve travel or exhaust flow.

Measure the bypass port diameter on the turbine housing and compare it with the specifications for the RHB31GW-55001GP7NWBRS255A. Contact technical support if the dimensions do not match the reference application.

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 NB137143, engine code, vehicle application, production year, and turbo model RHB31GW-55001GP7NWBRS255A before ordering. This part is a reference application for Yanmar 4JHL-HT(MY65), Isuzu 4EC1T(VIAL), and Yanmar AY49; confirm fitment with your specific unit.

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