Genuine OEM Nissan Rear Differential Side Bearing – R200 Differential – 38440-N3110 / 38440-N3111
Restore smooth, reliable differential operation with the Genuine OEM Nissan Rear Differential Side Bearing – 38440-N3110, a factory replacement carrier bearing designed for compatible Nissan R200 rear differential assemblies.
Also known as a differential carrier bearing, this genuine Nissan bearing supports the differential carrier within the housing, allowing it to rotate smoothly while maintaining the correct position of the ring gear relative to the pinion.
Correct carrier bearing condition and adjustment are essential for maintaining proper ring and pinion alignment, backlash and reliable differential operation.
Over time, differential side bearings can deteriorate due to high mileage, contaminated oil, insufficient lubrication, excessive loads or incorrect differential adjustment.
Worn or damaged carrier bearings may contribute to differential whine, rumbling noises, vibration, unwanted carrier movement and accelerated ring and pinion gear wear.
Replacing worn bearings with correctly specified genuine Nissan components during a professional differential rebuild helps restore the intended bearing support and operating characteristics of the assembly.
Ideal for R200 differential rebuilds, limited-slip differential servicing, driveline restorations and maintenance on compatible Nissan Skyline, Silvia, 180SX, Stagea and other Nissan performance vehicles.
Part Number Information: Original Nissan part number 38440-N3110 is listed as superseded by 38440-N3111. Confirm the applicable bearing against your differential assembly before purchasing.
Product Details
- Brand: Genuine OEM Nissan
- Original Part Number: 38440-N3110
- Superseding Part Number: 38440-N3111
- Product Type: Differential Side Bearing / Carrier Bearing
- Position: Rear Differential – Carrier Side Bearing
- Application: Compatible Nissan R200 Differential Assemblies
- Function: Supports and Locates the Differential Carrier
- Quantity Supplied: One (1) Bearing
- Quantity Normally Required: Two (2) Per Differential
- Condition: Brand New – Genuine Nissan
Vehicle Compatibility
This bearing is associated with selected Nissan R200 differential applications, including compatible differential assemblies fitted to the following vehicle families:
- Nissan Skyline R32 – Selected R200 Applications
- Nissan Skyline R33 – Selected R200 Applications
- Nissan Skyline R34 – Selected R200 Applications
- Nissan Skyline GT-R BNR32 – Selected Compatible Differential Assemblies
- Nissan Skyline GT-R BCNR33 – Selected Compatible Differential Assemblies
- Nissan Skyline GT-R BNR34 – Selected Compatible Differential Assemblies
- Nissan Silvia S13 – Selected R200 Applications
- Nissan Silvia S14 – Selected R200 Applications
- Nissan Silvia S15 – Selected R200 Applications
- Nissan 180SX – Selected R200 Applications
- Nissan Stagea WC34 – Selected Compatible Differential Assemblies
- Nissan Cefiro A31 – Selected R200 Applications
- Nissan Laurel C33 / C34 / C35 – Selected R200 Applications
- Other Nissan Vehicles – Where the Factory Parts Catalogue Specifies This Bearing
Important Fitment Information: The vehicle list above represents potential applications only. It does not mean that every model, year, drivetrain or differential variant uses this bearing.
Nissan used different differential assemblies, bearing dimensions and carrier arrangements across its vehicle range.
Do Not Order Based on R200 Identification Alone: Not every R200 differential uses identical carrier bearings.
Please verify Nissan part number 38440-N3110 / 38440-N3111 against your specific differential assembly, original bearing identification or the applicable Nissan factory parts catalogue before purchasing.
Key Features & Benefits
- Genuine OEM Nissan differential replacement component
- Designed for selected Nissan R200 differential applications
- Differential side bearing / carrier bearing position
- Supports correct differential carrier positioning
- Helps maintain the intended ring and pinion gear relationship
- Provides smooth carrier rotation when correctly installed
- Replaces worn, noisy or damaged original bearings
- Manufactured to Nissan's intended component specifications
- Suitable for professional differential rebuilds and repairs
- Ideal for restoring original Nissan driveline assemblies
What Does a Differential Side Bearing Do?
The differential carrier supports the ring gear and the internal differential mechanism, allowing torque to be transferred through the final drive assembly.
The carrier is supported within the differential housing by two side bearings, one positioned on each side.
These bearings allow the carrier to rotate smoothly while helping maintain its correct position relative to the pinion gear.
Correct side bearing condition and adjustment are important for maintaining the specified ring and pinion backlash, bearing preload and gear contact pattern.
Excessive bearing wear or incorrect adjustment can allow unwanted carrier movement, potentially affecting gear operation and contributing to differential noise or premature wear.
Two Bearings Required Per Differential
A typical compatible Nissan R200 differential carrier uses two (2) side bearings, one on each side of the differential carrier.
This listing includes one (1) bearing only.
For a complete carrier bearing replacement, customers will normally need to order a quantity of two (2), provided the applicable differential uses this part number on both sides.
Ordering Tip: Confirm the bearing requirements for your specific differential before purchasing. Where both bearings are the same specification, replacing them as a matched service operation is generally recommended during a complete rebuild.
Common Signs of Worn Differential Carrier Bearings
- Whining or rumbling noises from the differential
- Noise that changes with vehicle speed or driveline load
- Excessive carrier movement during inspection
- Roughness when rotating the differential carrier
- Metallic debris or bearing material in the differential oil
- Visible bearing race damage, pitting or overheating
- Abnormal ring and pinion wear
- Difficulty maintaining correct differential adjustment
Important: Differential noise can also be caused by worn pinion bearings, incorrect backlash, damaged ring and pinion gears, wheel bearings or other driveline components. A proper diagnosis is recommended before replacing individual parts.
Ideal for Nissan R200 Differential Rebuilds
The Nissan R200 differential has been used in numerous Nissan rear-wheel-drive and performance vehicle applications.
As these vehicles age, differential overhauls are increasingly common during restorations, driveline repairs and performance builds.
Replacing worn internal bearings with correctly specified genuine Nissan components helps maintain the intended mechanical operation of the differential.
This carrier bearing is ideal for:
- Professional R200 differential rebuilds
- Replacing worn or damaged differential side bearings
- Limited-slip differential servicing
- Skyline and Silvia driveline restorations
- Repairs following differential bearing noise or damage
- Overhauling high-mileage differential assemblies
- Rebuilding compatible factory Nissan final drive units
Recommended Parts to Inspect During a Differential Rebuild
When replacing differential side bearings, inspect the complete differential assembly for additional wear or damage.
Depending on the differential design and service requirements, related components may include:
- Opposite differential carrier side bearing
- Front pinion bearing
- Rear pinion bearing
- Pinion oil seal
- Collapsible pinion spacer or applicable preload-setting components
- Pinion nut and associated hardware
- Ring and pinion gear set
- Carrier bearing adjustment shims or retainers
- Axle or output shaft oil seals
- Correct differential oil
Rebuild Tip: Always use the correct components and adjustment procedure for the specific differential assembly being rebuilt. Pinion bearings and seals should be inspected and replaced where required, rather than assuming every component must be replaced during every repair.
Installation & Differential Setup Information
Differential carrier bearing replacement is a precision repair requiring specialist tools and mechanical knowledge.
Correct installation may involve removing the differential carrier, pressing the original bearings off the carrier, installing the replacement bearings and setting the required bearing preload and ring gear backlash.
Depending on the differential design, carrier bearing adjustment shims or other positioning components may need to be inspected or adjusted.
Following assembly, the ring and pinion contact pattern should be checked against the applicable Nissan workshop specifications.
Incorrect installation or differential adjustment can result in excessive noise, overheating, premature bearing wear or ring and pinion damage.
Professional Installation Strongly Recommended: This component should be installed by a qualified technician or differential specialist familiar with Nissan final drive assemblies.
Important: Replacing a worn carrier bearing alone does not guarantee the elimination of differential noise. Existing gear wear, incorrect adjustment or damage to other internal components must also be addressed.
Genuine Nissan Part Number Supersession
The original Nissan part number for this differential side bearing is 38440-N3110.
This part number is listed as superseded by 38440-N3111.
Part number supersessions may reflect replacement catalogue numbers or changes to Nissan's supply arrangements.
Please confirm that the supplied part number is applicable to your differential assembly before installation.
What's Included?
- 1 × Genuine OEM Nissan Rear Differential Side Bearing – 38440-N3110 / 38440-N3111
Not Included: Second carrier side bearing, pinion bearings, bearing races supplied separately where applicable, collapsible spacer, oil seals, differential oil, shims or other rebuild components unless specifically stated.
Why Choose Genuine Nissan?
Genuine Nissan differential components are manufactured to the specifications required for their intended factory applications.
For precision driveline assemblies such as the R200 differential, using the correct bearing is important for achieving the intended fitment, bearing support and operating characteristics.
Whether you're rebuilding a Skyline GT-R differential, restoring a Silvia or repairing a compatible Nissan final drive, genuine Nissan replacement components are an excellent choice for maintaining original equipment specifications.
Note: This listing includes one (1) Genuine OEM Nissan Rear Differential Side Bearing only. Two (2) bearings are normally required per compatible differential carrier. Original part number 38440-N3110 is listed as superseded by 38440-N3111. Fitment must be verified against the specific differential assembly. Supplied in genuine Nissan packaging, which may be removed for product photography.
Australian Stock & Fast Dispatch: At OEM4JDM, every part listed as In Stock is physically on our shelf in Australia and ready for fast dispatch.