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177348128567-0 - Northline Parts

Lexus LS400 Driveshaft Flex Disc Coupling 37511-50040 for 4.0L V8

SKU: NLT1U00032
$92.99 In Stock
$92.99
Sale price  $92.99 Regular price 
Ships for free in 2–4 business days.
This new aftermarket driveshaft flexible coupling disc is intended for the compatible models and reference numbers shown below. It cross-references 37511-50040.
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
  • Lexus LS400 4.0L V8

Product Overview

A thump when shifting into gear, vibration under acceleration, or visible cracks around the driveline-coupling sleeves can mean the flex disc has aged. U-joints, mounts, driveshaft alignment, and the center support should be inspected at the same time.

This rubber-and-metal flexible driveshaft coupling replaces 37511-50040 on compatible Lexus LS400 4.0L V8 driveline configurations. Compare diameter, bolt spacing, sleeve orientation, and vehicle production information.

Key Features & Performance

  • Cushions driveline shock during torque changes
  • Flexible rubber coupling with metal sleeves
  • Reference match for 37511-50040
  • For compatible LS400 4.0L V8 applications
  • New aftermarket flex disc

Replaces Part Numbers

  • 37511-50040

Common Uses

  • Replacing a cracked driveline disc
  • Correcting a confirmed coupling thump
  • Addressing vibration after shaft inspection
  • Preventive service while the driveshaft is removed

Technical Specifications

  • Product Type: Driveshaft flex disc
  • Primary System: Propeller shaft driveline
  • Engine Application: 4.0L V8
  • Condition: New
  • Replacement Type: Aftermarket

Installation & Fitment

  • Support the vehicle using approved lift points
  • Mark driveshaft orientation before removal
  • Inspect flange faces, mounts, center support, and joints
  • Follow bolt direction and torque specifications
  • Road-test carefully and recheck for vibration

Compatibility Notice

Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.

Model, production date, serial number, dimensions, electrical or mounting configuration, installed options, and previous repairs can affect fitment. Compare the removed part and equipment information before purchase.

Frequently Asked Questions

Q: Can a worn flex disc cause a clunk? A: Yes. Cracked rubber or loose sleeves can create movement during load changes, but mounts and driveline joints can do the same.

Q: Does bolt direction matter? A: It can. Follow the vehicle service information and any molded arrows or flange markings on the coupling.

Q: How do I confirm fitment before ordering? A: Match the original reference number, equipment model and serial number, dimensions, connector or mounting details, and the product photos. Do not rely on appearance alone.

Q: Is this made by the original equipment manufacturer? A: No. This is a new aftermarket part. Brand names and model numbers are used only to identify compatible equipment.

Part Summary

keywords: Lexus 37511-50040 flex disc, LS400 driveshaft coupling, Lexus LS400 driveline clunk repair, 4.0L V8 propeller shaft coupling, Lexus guibo replacement

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.

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