Genuine OEM Nissan Magnetic Gearbox & Differential Drain Plug – 32103-U840A
Maintain your Nissan's drivetrain with the Genuine OEM Nissan Magnetic Gearbox & Differential Drain Plug – 32103-U840A, a factory replacement magnetic drain plug designed for selected Nissan manual transmissions, differentials and other compatible driveline assemblies.
Featuring an integrated magnetic tip, this genuine Nissan drain plug is designed to attract and retain ferrous metallic particles that may accumulate in the lubricating oil during normal component operation.
As gears, bearings and other internal steel components operate, small amounts of metallic wear material can enter the lubricant. The magnetic tip helps collect suitable ferrous particles, allowing them to be removed when the drain plug is cleaned during routine servicing.
Inspecting the material collected on a magnetic drain plug can also provide useful information about the condition of the drivetrain assembly. While a small amount of fine metallic residue may be normal, excessive particles or larger metal fragments can indicate the need for further inspection.
Manufactured to Nissan's original specifications, this genuine replacement plug is intended to provide the correct factory fitment for compatible driveline housings.
Whether you're servicing an R32 Skyline, maintaining an S15 Silvia, rebuilding a manual gearbox or refreshing a compatible Nissan differential, a genuine magnetic drain plug is a practical replacement component.
Important: This listing includes one (1) Genuine OEM Nissan Magnetic Drain Plug – 32103-U840A only. The sealing washer, lubricating oil and other servicing components are not included unless specifically stated.
Product Details
- Brand: Genuine OEM Nissan
- Part Number: 32103-U840A
- Product Type: Magnetic Driveline Drain Plug
- Function: Retains Ferrous Metallic Wear Particles
- Application: Selected Nissan Gearbox and Driveline Assemblies
- Construction: OEM Metal Drain Plug with Integrated Magnet
- Quantity Supplied: One (1) Drain Plug
- Condition: Brand New – Genuine Nissan
Vehicle Compatibility
Part number 32103-U840A may be used in selected driveline assemblies fitted to Nissan vehicles including:
- Nissan Skyline R31 – Selected Applications
- Nissan Skyline R32 – Selected Applications
- Nissan Skyline R33 – Selected Applications
- Nissan Skyline R34 – Selected Applications
- Nissan Skyline GT-R BNR32 / BCNR33 / BNR34 – Selected Applications
- Nissan Silvia S13 / S14 / S15 – Selected Applications
- Nissan 180SX – Selected Applications
- Nissan Stagea WC34 / AWC34 – Selected Applications
- Nissan Laurel C33 / C34 / C35 – Selected Applications
- Nissan Cefiro A31 – Selected Applications
- Nissan Patrol Y60 / Y61 – Selected Applications
- Nissan Navara D21 / D22 – Selected Applications
Critical Fitment Information: The vehicle list above is a guide to potential applications only. This part is not suitable for every transmission, differential or transfer case fitted to these models.
Fitment depends on the specific gearbox, differential or transfer case model, production date and original drain plug specification.
Always verify Nissan part number 32103-U840A against the applicable factory parts catalogue or original drain plug before purchasing.
Modified Vehicles: Vehicles fitted with aftermarket gearboxes, transmission conversions, replacement differentials or modified driveline housings may require a different drain plug.
Key Features & Benefits
- Genuine OEM Nissan replacement component
- Integrated magnetic tip for collecting ferrous wear particles
- Helps retain suitable metallic debris within the lubricant system
- Allows collected particles to be inspected during routine servicing
- Factory-specification construction for compatible Nissan assemblies
- Suitable for replacing damaged or rounded original plugs where specified
- Useful during gearbox and differential maintenance
- Ideal for selected Nissan performance and restoration applications
How Does a Magnetic Drain Plug Work?
During normal operation, manual gearboxes and differentials experience repeated contact between gears, bearings and other internal components.
Over time, small amounts of metallic wear material can enter the lubricating oil.
The integrated magnet in this genuine Nissan drain plug attracts and retains ferrous particles that reach the magnetic tip.
When the lubricant is drained during servicing, the collected material can be inspected and carefully removed before the plug is reinstalled.
This provides a convenient opportunity to check for unusual metallic debris while carrying out normal drivetrain maintenance.
Important: A magnetic drain plug does not capture non-magnetic particles and cannot prevent all internal component wear. It is not a replacement for correct lubrication, regular servicing or repairs to worn components.
Why Inspect Your Magnetic Drain Plug?
Inspecting the magnetic tip during an oil change can help identify changes in the amount or type of metallic debris present.
Fine metallic residue may accumulate through normal component operation, particularly after a rebuild or during the early service life of certain assemblies.
However, unusually large quantities of metal, coarse particles or visible fragments may indicate abnormal internal wear.
If excessive metallic debris is discovered, the gearbox or differential should be inspected by a qualified technician before continued operation.
Ideal for Routine Drivetrain Servicing
This genuine Nissan magnetic drain plug is suitable for a range of maintenance and restoration tasks where part number 32103-U840A is specified.
- Manual gearbox oil changes
- Differential oil changes on compatible assemblies
- Replacement of damaged or rounded drain plugs
- Gearbox rebuilds and refurbishment
- Differential rebuilds and servicing
- Inspection of metallic wear debris
- Factory-style Nissan drivetrain restorations
Genuine Nissan vs Universal Drain Plugs
Drain plugs can vary in thread diameter, thread pitch, overall length, sealing arrangement and magnetic tip dimensions.
Using an incorrectly specified plug can damage housing threads, prevent correct sealing or interfere with internal components.
This genuine Nissan drain plug is manufactured for the applications in which part number 32103-U840A is specified.
Important: Do not select a replacement drain plug based solely on vehicle model or apparent thread size. Confirm the complete factory specification for the relevant driveline assembly.
Installation & Servicing Information
Before installation, verify that this drain plug is correct for the gearbox, differential or other driveline assembly being serviced.
Remove the existing drain plug and inspect the housing threads and sealing surface for damage.
If the original plug is magnetic, inspect the collected material for signs of unusual wear.
Install the replacement plug using the correct sealing washer or sealing arrangement specified by Nissan for the particular assembly.
Tighten the drain plug to the factory torque specification for the relevant gearbox or differential housing.
Refill the assembly with the correct type and quantity of lubricant, following the applicable Nissan workshop procedure.
After servicing, check for leaks and confirm that the drain plug is correctly seated.
Installation Tip: Do not reuse a damaged sealing washer or overtighten the plug. Incorrect installation can damage the housing threads or cause oil leakage.
What's Included?
- 1 × Genuine OEM Nissan Magnetic Drain Plug – 32103-U840A
Not Included: Sealing washer, gearbox oil, differential oil, transfer case oil or additional servicing components unless specifically stated.
Why Choose Genuine Nissan?
Genuine Nissan replacement components are manufactured to the original specifications for their intended vehicle applications.
For classic Skyline, GT-R, Silvia and other Nissan driveline systems, using the correct factory replacement components helps maintain the intended servicing arrangement and compatibility with the original assembly.
Whether you're performing routine maintenance or completing a detailed drivetrain rebuild, genuine Nissan components provide a factory-specification replacement where the applicable part number is confirmed.
Note: This listing includes one (1) Genuine OEM Nissan Magnetic Drain Plug – 32103-U840A only. Sealing washer and lubricating oil are sold separately unless otherwise specified. Compatibility must be confirmed against the specific driveline 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.