400768-0012 5 16 NF-LEFT Shaft Nut for CAT D342 6L T1238 Turbocharger

This aftermarket replacement shaft nut, part number 400768-0012 5 16 NF-LEFT, is designed for T1238 turbocharger assemblies. It serves as a critical fastener for CAT D342 6L engines and CAT 583K vehicles, ensuring secure CHRA retention. Verify your specific engine code and turbo model before ordering to confirm correct fitment.

Key Specifications

• Part Number: 400768-0012 5 16 NF-LEFT
• Product Type: Shaft Nut
• Turbo Model: T1238
• Thread Specification: 5/16-24 NF Left-Hand
• Gross Weight: 0.03 kg
• Image Availability: Yes

This component is a precision fastener designed for T1238 turbocharger assemblies. The left-hand thread orientation is critical for proper installation on CAT D342 6L engines. Verify the thread pitch and direction against your existing hardware before ordering to ensure correct retention and assembly integrity.

Application & Compatibility

This shaft nut is listed for CAT D342 6L engines and CAT 583K vehicles. It serves as a replacement application for T1238 turbocharger assemblies. Verify your specific engine code, vehicle model, and turbo configuration before ordering to ensure correct fitment. This is an aftermarket replacement part; confirm thread orientation and size with your existing hardware.

Technical Notes

The 5/16-24 NF left-hand thread specification is critical for proper installation on T1238 turbocharger assemblies. This shaft nut secures the compressor housing to the bearing housing, maintaining alignment under high rotational speeds. Incorrect thread direction or pitch can lead to assembly failure or damage to the turbocharger shaft. Verify the thread orientation against your existing hardware before installation. This component is designed for precise retention in CAT D342 6L engine applications. Ensure the mating threads are clean and free of debris to prevent cross-threading during assembly. Proper torque application is essential for long-term reliability.

B2B Supply

LeadTurbo supports B2B buyers with volume pricing for bulk orders of the 400768-0012 5 16 NF-LEFT shaft nut. We offer worldwide shipping options to ensure timely delivery for repair shops and distributors. Our team provides technical fitment support to help verify part numbers and engine applications before purchase. Contact us with your specific requirements to receive a fast quotation and secure your replacement parts efficiently.