Transmission AWD Differential Cover For Hyundai Tucson Kia 45822-3B630

45822-3B630 Transmission AWD Differential Cover for Hyundai Kia

Product Introduction

The 45822-3B630 Transmission AWD Differential Cover is a precision transmission component designed for selected Hyundai and Kia AWD/4WD automatic transmission applications. Also associated with the Differential Case Cup / Differential Housing category, this component provides structural support and protection for the differential assembly inside the transmission.

Designed for accurate fitment and dependable operation, the 45822-3B630 helps maintain correct differential gear positioning, supports smooth torque transfer between the transmission and drive wheels, and protects internal drivetrain components from excessive movement and contamination. It is suitable for transmission rebuilding, differential repair, and replacement of cracked, worn, or damaged original housings.

Product Overview

In an AWD automatic transmission, the differential assembly must handle continuous torque while allowing the drive wheels to rotate at different speeds during cornering. The 45822-3B630 Differential Cover / Differential Case Cup forms an important part of this assembly by supporting internal differential components and maintaining their correct operating position.

The Hyundai/Kia 45822 part-number family is cataloged under Cup-Differential Case in official-style parts diagrams. Comparable 45822-series components are used in Hyundai/Kia 6-speed automatic transmissions with both 2WD and 4WD configurations, with different suffixes depending on transmission, engine, production date and drivetrain specification.

For this reason, buyers should always confirm 45822-3B630 using the original part number, VIN and transmission code before ordering.

Product Features

• OE Reference: 45822-3B630 / 458223B630

• Product Type: Transmission AWD Differential Cover

• Related Name: Differential Case Cup / Differential Housing

• System: Automatic Transmission

• Drivetrain: AWD / 4WD applications

• Designed for Hyundai/Kia transmission applications

• Precision-machined mounting and bearing surfaces

• Helps maintain stable differential gear alignment

• Supports smooth transmission of engine torque

• Helps protect differential gears and internal components

• High structural rigidity for transmission operating loads

• Direct-replacement design for compatible applications

• Suitable for transmission rebuilding and repair

• Designed for long-term operation under rotational and drivetrain loads

Product Specifications

Note: Exact physical dimensions and net weight should be confirmed from the actual production drawing or sample. KINGMAY does not recommend publishing estimated dimensions for transmission internal components because different 45822-series differential cases may have very similar external appearances but different machining specifications.

Function of the 45822-3B630 Differential Cover

The differential is responsible for transmitting torque while allowing the driven wheels to rotate at different speeds. This difference in wheel speed is essential when the vehicle turns, because the outer wheel must travel farther than the inner wheel.

The 45822-3B630 Transmission Differential Cover / Case Cup helps provide a stable housing structure for these differential components.

Its main functions include:

• Supporting the differential gear assembly

• Maintaining correct gear and bearing positioning

• Helping control internal component movement

• Supporting stable torque transmission

• Providing structural protection for differential components

• Helping maintain correct gear mesh

• Reducing abnormal vibration caused by excessive internal clearance

• Supporting reliable AWD transmission operation

A correctly manufactured differential case is especially important because inaccurate machining or deformation can affect bearing preload, gear alignment and overall transmission performance.

Why Differential Housing Accuracy Matters

Unlike an exterior decorative transmission cover, the differential case is a precision drivetrain component.

Small dimensional differences in:

• Bearing seats

• Shaft openings

• Mounting surfaces

• Gear clearances

• Bolt positions

can affect the operation of the complete differential assembly.

For this reason, replacement components should be checked for dimensional accuracy before installation.

KINGMAY provides dimensional inspection and OEM-number verification for wholesale transmission component orders.

Common Problems

Cracked or Damaged Differential Case

Impact, excessive drivetrain load or internal transmission failure can damage the housing.

Possible symptoms:

• Transmission fluid leakage

• Abnormal drivetrain noise

• Differential vibration

• Internal gear misalignment

Solution:
Inspect the differential assembly and replace the damaged housing before installing new internal components.

Bearing Seat Wear

Long-term operation or bearing failure can cause wear around the bearing mounting area.

Possible symptoms:

• Humming or grinding noise

• Excessive differential play

• Increased vibration

Solution:
Measure the bearing seat and replace the differential case if it no longer meets the required tolerance.

Gear Misalignment

A deformed or incorrectly machined differential case may affect differential gear alignment.

Possible symptoms:

• Abnormal gear noise

• Uneven gear wear

• Poor transmission operation

Solution:
Verify the housing dimensions, bearing condition and differential gear clearance.

Transmission Oil Leakage

Damaged sealing surfaces or incorrect installation may result in fluid leakage.

Solution:
Inspect the sealing surfaces, oil seals and mating transmission housing during installation.

Installation Recommendation

Installation of the 45822-3B630 Transmission AWD Differential Cover should be performed by a qualified transmission technician.

During replacement, it is recommended to inspect:

• Differential bearings

• Differential gears

• Final drive gear

• Oil seals

• Transfer drive components

• Transmission housing

• Bearing preload

• Gear backlash

• Automatic transmission fluid condition

All components should be assembled according to the corresponding Hyundai/Kia transmission service specifications.

Correct bearing preload and differential clearance are essential for long-term reliability.

Fitment Verification

Transmission components cannot be selected by vehicle model alone.

Before ordering 45822-3B630, please provide:

• OE number

• Vehicle model

• Production year

• Engine model

• Transmission code

• 2WD / AWD information

• VIN / chassis number

• Photo of the original differential case if available

KINGMAY can assist with OEM-number cross-reference and fitment verification before shipment.

KINGMAY Quality Control

KINGMAY Auto Parts specializes in OEM-grade replacement parts for Japanese and Korean vehicles, with particular strength in Hyundai and Kia chassis and drivetrain components.

For transmission components, quality control can include:

• Dimensional inspection

• Mounting-point verification

• Machining-surface inspection

• OE number checking

• Appearance inspection

• Packaging inspection

• Batch traceability

• Pre-shipment verification

KINGMAY states that its products are manufactured to match OEM-level fit, form and function specifications, with material certification and technical documentation available for selected products.

KINGMAY Parts Matching Service

Choosing the wrong transmission component can cause major installation problems because visually similar housings may have different internal specifications.

KINGMAY provides OEM cross-reference and VIN matching support.

Customers can send:

• OEM number

• VIN

• Chassis number

• Transmission code

• Original part photo

and the sourcing team can help identify the correct replacement before the order is finalized.

This is particularly useful for Hyundai and Kia transmission components with multiple revisions or similar part-number families.

KINGMAY MOQ & Mixed Orders

KINGMAY supports flexible wholesale purchasing for distributors and automotive parts importers.

Advantages include:

• Flexible MOQ depending on product

• Multiple part numbers in one order

• Mixed Hyundai/Kia parts orders

• Trial orders for new customers

• Better pricing for larger quantities

• Preferential pricing for long-term cooperation

KINGMAY's general wholesale program currently advertises MOQ from approximately 50 pieces, although the actual MOQ depends on the product type and sourcing arrangement.

For specialized transmission components such as 45822-3B630, customers should request the current MOQ and stock status with their quotation.

Packaging Service

KINGMAY can provide several packaging solutions according to distributor requirements:

• Neutral packaging

• KINGMAY branded packaging

• Private-label packaging for qualifying orders

• Customized labels

• OE-number labels

• Compatible-vehicle labels

• Export-standard cartons

• Reinforced packaging for heavy transmission components

Private-label service is available for qualifying bulk orders.

Shipping & Logistics

KINGMAY is based in Guangzhou, China and supports international wholesale shipment by:

• Express courier

• Air freight

• Sea freight

• LCL consolidated shipment

• FCL container shipment

Different automotive parts can be combined into one consolidated shipment to reduce logistics cost.

Export orders can also include supporting documentation such as:

• Commercial Invoice

• Packing List

• Certificate of Origin when required

• Export documentation

KINGMAY uses Guangzhou's supply-chain and port network, including shipment through Nansha Port, for international export orders.

KINGMAY B2B Service

KINGMAY provides professional support for automotive parts wholesalers, importers, distributors and repair-chain suppliers.

Services include:

• OEM number verification

• VIN fitment checking

• Transmission-code matching

• Product sourcing

• Wholesale quotations

• Sample verification

• Pre-shipment inspection

• Mixed-order consolidation

• Private-label packaging

• International logistics

• Export documentation

• After-sales communication

Technical inquiries and OEM-number cross-reference requests are generally handled within approximately 24 hours.

Why Choose KINGMAY?

Hyundai & Kia Parts Expertise

KINGMAY focuses strongly on Japanese and Korean vehicles, particularly Hyundai and Kia replacement parts, allowing faster OE matching and sourcing.

Factory-Integrated Supply Chain

KINGMAY coordinates qualified manufacturing and supply-chain resources in China, helping international customers purchase directly from the production side without managing multiple suppliers.

Strict Pre-Shipment Inspection

Orders undergo dimensional and quality checks before shipment, reducing the risk of incorrect or defective products reaching overseas customers.

Flexible Mixed Purchasing

Customers can combine transmission, engine, suspension, cooling and electrical components into one consolidated order.

Private Label Support

Neutral and private-label packaging solutions are available for distributors developing their own aftermarket brands.

Frequently Asked Questions

Is 45822-3B630 a transfer case?

No. The 45822-number family relates to the transmission differential case/cup assembly, while Hyundai/Kia transfer case assemblies commonly use different OE number families such as 47300-xxxxx.

Is this part suitable for AWD vehicles?

45822-3B630 is associated with AWD/4WD transmission applications. However, exact compatibility must be verified using the vehicle VIN and transmission code.

Can I replace only the differential cover?

Yes, if the differential gears, bearings and related components remain within specification. However, the complete differential assembly should be inspected before installation.

Can KINGMAY check the part by VIN?

Yes. Customers can provide the VIN, chassis number, OE number, transmission code or original-part photo for fitment checking.

Can I order several Hyundai/Kia transmission parts together?

Yes. KINGMAY supports mixed-part orders and consolidated international shipments.

Wholesale Inquiry

For 45822-3B630 Transmission AWD Differential Cover, please send:

OE Number: 45822-3B630
Vehicle Model:
Production Year:
Engine:
Transmission Code:
Drive Type: AWD / 4WD
Quantity:
Destination Country / Port:
Packaging Requirement:

KINGMAY can provide fitment verification, wholesale pricing, MOQ, packaging options and international shipping solutions according to your requirements.

 Key points:
• OEM quality, neutral or Kingmay-branded packaging available
• Flexible MOQ, mixed batches / shared containers supported
• FOB / CIF from major Chinese ports

[Price] We're a direct China factory — no middlemen. MOQ starts at 1 piece, with better rates for larger volumes.
[Logistics] Shipping from Guangzhou / Yiwu ports to Iraq / Saudi / Turkey takes 25-30 days by sea; DHL/UPS urgent samples also supported.
[Quality] OE 1:1 tooling, 24-month warranty. Sample confirmation available for first orders.

If these points help, we suggest starting with a small trial container (approx. USD 800-1000) to validate the process, then optimize pricing for long-term cooperation.