120x140x12mm TC Oil Seal OEM 0139971447 Brown NBR Automotive

120x140x12mm TC‑Type Oil Seal OEM 0139971447, Brown NBR Oil‑Resistant — main photo

Factory‑new TC‑type oil seal, dimension 120×140×12 mm, brown NBR rubber with garter spring, OEM reference 0139971447. Features excellent oil‑resistant and wear‑resistant performance. Suitable for heavy‑duty commercial vehicle shaft sealing, prevents lubricant leakage and blocks dust and splash‑water. High‑quality aftermarket automotive spare part for wholesale export.

Tags: NBR oil seal, shaft rotary seal, heavy‑duty commercial vehicle, TC fully rubber‑covered skeleton seal

Product photos

120x140x12mm TC‑Type Oil Seal OEM 0139971447, Brown NBR Oil‑Resistant — photo 2 120x140x12mm TC‑Type Oil Seal OEM 0139971447, Brown NBR Oil‑Resistant — photo 3 120x140x12mm TC‑Type Oil Seal OEM 0139971447, Brown NBR Oil‑Resistant — photo 4

Key specs: Inner diameter mm: 120 | Outer diameter mm: 140 | Height mm: 12 | Material: NBR | Spec & Model: 120x140x12mm｜OEM:0139971447｜Material:Brown NBR rubber + garter spring｜Structure:TC type fully rubber‑covered skeleton oil seal｜Fit for heavy‑duty commercial vehicle rotary shaft | Spec & Model: 120x140x12mm｜OEM:0139971447｜Material:Brown NBR rubber + garter spring｜Structure:TC type fully rubber‑covered skeleton oil seal｜Fit for heavy‑duty commercial vehicle rotary shaft

  • Inner diameter mm: 120
  • Outer diameter mm: 140
  • Height mm: 12
  • Material: NBR
  • Spec & Model: 120x140x12mm｜OEM:0139971447｜Material:Brown NBR rubber + garter spring｜Structure:TC type fully rubber‑covered skeleton oil seal｜Fit for heavy‑duty commercial vehicle rotary shaft
  • Spec & Model: 120x140x12mm｜OEM:0139971447｜Material:Brown NBR rubber + garter spring｜Structure:TC type fully rubber‑covered skeleton oil seal｜Fit for heavy‑duty commercial vehicle rotary shaft

Technical summary

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SpecValue
规格型号120x140x12mm｜OEM:0139971447｜Material:Brown NBR rubber + garter spring｜Structure:TC type fully rubber‑covered skeleton oil seal｜Fit for heavy‑duty commercial vehicle rotary shaft

Pricing: request a quote (B2B / wholesale).

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Product details

This TC‑type fully rubber‑covered skeleton oil seal dimension 120×140×12 mm with OEM cross‑number 0139971447 is high‑quality aftermarket replacement part for heavy‑duty commercial vehicle rotary shaft. Constructed with brown NBR rubber and built‑in garter spring, features good oil‑resistant and wear‑resistant properties. Effectively retain gear‑oil inside shaft assembly, avoid oil leakage under vibration during operation. Block dust, sand and splash‑water from entering internal components. Widely applied in vehicle repair workshops, domestic auto‑parts wholesale and cross‑border automotive‑parts export business. Core functions Prevent gear‑oil leakage under heavy‑load driving vibration Isolate shaft assembly from dust, grit and splash‑water contamination TC fully rubber‑covered design for stable press‑fit installation into housing bore Reliable long‑term sealing performance for commercial vehicle powertrain components

Material and process

Material ：Brown NBR nitrile rubber, garter spring Structure ：TC type fully rubber‑covered rotary shaft skeleton oil seal Key properties ：Oil‑resistant, wear‑resistant, dust‑proof, anti‑vibration, anti‑aging Working temperature:‑20℃ +120℃ Manufacturing features Integrated fully rubber‑covered structure, stable performance under chassis bumping vibration. Precision‑machined sealing lip with garter spring maintains stable radial pre‑load pressure. NBR compound offers good compatibility with commercial‑vehicle gear‑oil. Upgrade option ：FKM fluoro‑rubber variant for higher‑temperature heavy‑load working scenarios.

Application and compatibility

Product Type ：TC fully rubber‑covered skeleton oil seal for heavy‑duty commercial vehicle Key dimension ：ID120mm × OD140mm, overall thickness12mm OEM Part‑Number ：0139971447 Compatible media ：Transmission & axle gear‑oil, general chassis lubricants. Fit application ：Heavy‑duty commercial‑vehicle rotary shaft sealing. Buyer reminder ：This is aftermarket replacement spare part. Please verify shaft dimension, housing bore and OEM reference number before placing order. Dimension mismatch will result in oil leakage after installation.

Selection guide

Selection Tips 1. Confirm dimension ID120mm, OD140mm, thickness12mm, TC fully rubber‑covered structure and OEM number 0139971447. 2. Standard NBR version for normal gear‑oil environment; select FKM upgrade for high‑temperature heavy‑load working condition. 3. Inspect shaft and housing bore before installation; repair shaft wear, corrosion and burrs. Damaged mating surfaces will trigger premature oil‑seal leakage. Installation Steps Preparation Thoroughly clean housing bore and shaft surface, remove old seal residue, dirt and burrs. Pre‑lubrication Coat sealing lip and shaft surface with matched gear‑oil. Dry installation strictly forbidden; dry friction will damage sealing lip quickly. Orientation Confirmation Main sealing lip points toward oil cavity; dust‑proof side faces outward. Wrong installation direction leads to oil leakage and poor contamination‑resistance. Vertical Press‑fit Use dedicated press‑sleeve tool to press oil‑seal evenly and vertically. Never strike rubber body directly to avoid seal deformation and lip tearing. Seating Inspection Ensure seal sits fully flush inside housing bore without tilt. Visual Check Examine sealing lip for nicks and deformation; tiny hidden damage will cause seepage after commissioning. Rotation Test Manually rotate shaft assembly to confirm smooth rotation without abnormal binding resistance.

Packaging and delivery

Inner package ：Individual anti‑dust poly bag for each piece to protect sealing lip from scratch. Outer package ：Reinforced export carton. Packing quantity ：Adjustable per purchase requirement. MOQ ：Stock items no MOQ, sample order supported. Lead‑time ：Stock goods ship within 3‑5 working days; custom logo & export‑special‑packaging orders 30‑45 working days. Custom options ：Custom logo printing available, custom‑order MOQ≥1000 pcs. Shipping protection: Moisture‑proof, dust‑proof and anti‑collision packing to prevent deformation during transit.

FAQ

There are only competing products—OEM and model—but not your part number. Can we use them as a reference for selection?

Sure. Please include the competing products/OEM model, key dimensions (ID × OD × height, in mm), and operating conditions (medium, temperature, pressure, rotational speed) to the inquiry form, and we will match them with equivalent specs items in our catalog.If dimensions are unavailable, please send model and photos/drawing first, and we will confirm the details. The final model selection will be based on the confirmation of drawing and operating conditions, and the official quotation will be subject to the written quotation order.

Does it support OEM/ODM along with privatization of packaging and tagging?

We support performing OEM/ODM in accordance with drawing/sample, as well as packaging and marking customization within the agreed upon scope.Please provide details on the target market’s compliance requirements and estimated annual volume. During the RFQ phase, we will confirm process feasibility, tooling costs, and mass production cycle time.

What is OEM 0139971447 oil seal used for?

120x140x12 mm TC‑type oil seal, brown NBR material with oil‑resistant & wear‑resistant feature, aftermarket replacement for heavy‑duty commercial‑vehicle rotary shaft, prevents gear‑oil leakage and blocks dust.

What are full specifications?

Size:ID120mm × OD140mm, thickness12mm; OEM:0139971447; Material:Brown NBR rubber + garter spring; Structure:TC fully rubber‑covered skeleton seal; Working temperature:‑20℃ 120℃; Application:Heavy‑duty commercial‑vehicle rotary shaft sealing.

Which vehicle fits OEM 0139971447 oil seal?

This TC‑type oil seal is aftermarket replacement for heavy‑duty commercial‑vehicle rotary shaft. Please confirm shaft dimension, housing bore and OEM cross‑number before purchase.

Do you support custom logo and export packaging?

Yes, custom logo and export‑oriented packaging are available. Custom MOQ is 1000 pieces with production lead‑time 30‑45 working days.

What is your MOQ and delivery time?

In‑stock items: no MOQ, delivery within 3‑5 working days. Customized order MOQ:1000 pcs, lead‑time 30‑45 days.

How to avoid oil leakage after installation?

Repair worn shaft and housing bore before fitting. Lubricate seal lip with matching gear‑oil before pressing. Install in correct direction with proper sleeve press‑tool, never strike seal body directly. Test shaft rotation after assembly. Improper installation is main cause of early leakage.

What is shelf‑life for NBR TC‑type oil seal?

Shelf life is 24 months when stored in cool, dry, dark and ventilated warehouse, avoid ozone, high temperature and heavy squeezing or denting.

Can I get FKM high‑temperature version for this size?

Yes, FKM material upgrade version is available for higher‑temperature heavy‑load working conditions, please contact us for quotation.

Can you provide export documents for bulk order?

We can provide commercial invoice, packing list and certificate of origin for bulk export shipments to support customs clearance.

Can I mix different oil seals in one order?

Mixed wholesale is supported, you can combine multiple sizes oil seals for one‑stop sourcing.

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