Premium Durable Direct Fit Inner Tie Rod (57724-A4000)

The 57724-A4000 inner tie rod is a chassis steering component engineered to exact Mobis OEM specifications. It supports 12 Hyundai and Kia vehicle platforms, with all production carried out in IATF16949-certified facilities. Each unit undergoes 100% dimensional inspection before delivery. This page provides detailed specifications, design features, application range, troubleshooting guidance, and procurement terms for business buyers and regional warehouse distributors.

Product Specifications for 57724-A4000 Inner Tie Rod End

Basic Identification Parameters

Dimension and Weight Parameters

Material Composition

Production Standard and Quality Control

Core Design Features of 57724-A4000 Inner Tie Rod

One-piece Forged Alloy Steel Construction

This tie rod end is manufactured from a single billet of alloy steel via precision closed-die hot forging, differing from sand-cast or powder-metal alternatives. The process forms a continuous grain flow that follows the contoured shape of the rod body. This structure delivers resistance to bending and impact loads from pothole impacts and curb strikes, and lowers the risk of internal casting voids or fatigue crack formation over the service life.

Pre-lubricated PTFE-lined Bearing

The ball stud operates within a sintered PTFE-impregnated bearing liner that maintains consistent low friction across the full steering articulation range. The bearing is pre-lubricated with high-temperature lithium grease, which supports smooth steering motion and reduces the stiff or uneven steering feel that occurs with worn or inadequately lubricated tie rod joints.

Dual-seal Dust Boot Structure

The elastomer dust boot incorporates two sealing lips with distinct functions. The primary lip prevents entry of large road debris and particles, while the secondary scraper lip clears surface contaminants from the ball stud during suspension compression and rebound cycles. An integrated metal crimp ring secures the boot to the rod body, maintaining stable attachment during extreme articulation and high-pressure washing procedures.

Steering Accuracy and Safety Attributes

Replacing worn tie rod ends reduces excessive steering free play, corrects uneven or off-center tire wear caused by inconsistent toe alignment, and eliminates clunking noises over bumps caused by loose ball joint clearance. Critically, it reduces the risk of ball joint separation that can lead to total loss of steering control. Professional wheel alignment is required after installation to restore proper steering geometry.

Vehicle Application Range for 57724-A4000

This inner tie rod end is compatible with 12 Hyundai and Kia platforms, covering model years 2010-2022. Specific applications include:

• Hyundai Elantra (Avante) AD/MD: Compact Sedan

• Hyundai Sonata LF/DN8: Midsize Sedan

• Kia Optima JF/K5: Midsize Sedan

• Kia Forte YD/Cerato: Compact Sedan

• Kia Sportage QL: Compact SUV

• Hyundai Santa Fe DM/CN7: Midsize SUV

• System: Chassis System

• Part Type: Inner Tie Rod End / Outer Tie Rod End

Common Failure Symptoms and Remedial Solutions

Steering Free Play and Vehicle Wandering

Root Causes

Worn inner ball joint resulting in excessive internal clearance

Impact damage to the internal spring mechanism

Grease loss due to torn or degraded rubber boot

Metal-to-metal wear from water and dirt contamination

Diagnosis

Clunking sounds when turning the steering wheel at low vehicle speeds

Vehicle drifts or pulls when driving on straight, level roads

Steering free play exceeding 15mm measured at the steering wheel rim

Detectable play when shaking the tire at 3 and 9 o'clock positions with the front axle raised

Solution Steps

Replace both left and right inner tie rods as a paired set

Replace outer tie rod ends at the same time if wear is identified

Record the number of turns during old part removal to preserve approximate toe alignment

Torque the inner tie rod to the steering rack to 70-90 N·m

Complete a professional wheel alignment following installation

Adjust toe-in to match vehicle manufacturer specifications

Dust Boot Damage and Grease Leakage

Root Causes

Rubber degradation and cracking from prolonged heat and ozone exposure

Physical damage caused by road debris and impact

Loose or failed boot clamps allowing contaminant ingress

Diagnosis

Visible cracks, tears, or full separation of the boot material

Grease residue visible around the boot assembly housing

Solution Steps

Replace the boot only and repack with fresh grease if no free play is present and internal grease remains clean

Replace the full 57724-A4000 assembly if free play or internal contamination is confirmed

Fit a new boot clamp to ensure a sealed, watertight connection

Abnormal Tire Wear Pattern

Root Causes

Shifted toe alignment caused by worn tie rod components

Bent inner tie rod resulting from impact with curbs or deep potholes

Diagnosis

Feathered or sawtooth texture on tire tread blocks when touched by hand

Faster wear on the inner or outer tread edge compared to the center of the tire

Off-center steering wheel position during straight-line driving

Solution Steps

Replace the worn or deformed 57724-A4000 inner tie rod

Perform a professional 4-wheel alignment to restore correct geometry

Complete tire rotation and balancing after alignment is finished

Commercial Procurement Terms and Packaging Solutions

This component is supplied to parts importers, regional warehouse distributors and other industrial clients across global markets. The minimum order quantity starts at 500 units, with flexible lead times available to accommodate volume orders and varied inventory replenishment schedules. Two packaging categories are offered to align with different distribution models:

Genuine (MOBIS) Standard Packaging

Aftermarket/Brand Packaging, including neutral packaging (most widely used for general distribution) and custom branded packaging for private label programs

FAQ about 57724-A4000

Does 57724-A4000 meet OEM manufacturing specifications?

This is an aftermarket replacement part produced to meet or exceed OEM specifications. It provides equivalent fit, form, and function compared to the original equipment component.

What vehicle models does 57724-A4000 fit?

Refer to the Vehicle Application Range section for the full compatibility list. For unlisted vehicles, contact customer support with your VIN for fitment confirmation.

Are special tools needed for installation?

Standard automotive hand tools are adequate for most installation procedures. A torque wrench is recommended to ensure fasteners are tightened to factory torque values. Consult a professional service manual for your specific vehicle model.

What does the warranty cover for this part?

Warranty coverage applies to manufacturing defects under normal operating conditions. Refer to the official warranty policy for full coverage details. Improper installation, competitive racing use, or unauthorized modifications will void the warranty.

Is it recommended to replace paired components together?

Replacing related wear items at the same time — including left and right side units, seals, and gaskets — is recommended to support balanced performance and reduce repeat labor expenses.

What is the most reliable way to confirm fitment?

Cross-reference the OEM part number 57724-A4000 with your vehicle VIN through an authorized dealer or online fitment checker. OEM part numbers provide the most accurate basis for part matching.