105x140x12/25mm Cassette Hub Oil Seal OEM 3103045AA3Q

105x140x12/25mm Cassette Oil Seal OEM 3103045AA3Q, Premium Front Wheel — main photo

Factory‑new cassette‑style front wheel hub oil seal, OEM NO.3103045AA3Q, dimension 105×140×12/25 mm, NBR rubber construction with garter spring. Designed for commercial vehicle front axle hub, retains bearing grease and blocks mud, dust and splash‑water. Premium aftermarket spare part for auto repair, available for wholesale export.

Tags: NBR oil seal, front wheel hub seal, heavy‑duty commercial vehicle, cassette composite seal

Product photos

105x140x12/25mm Cassette Oil Seal OEM 3103045AA3Q, Premium Front Wheel — photo 2 105x140x12/25mm Cassette Oil Seal OEM 3103045AA3Q, Premium Front Wheel — photo 3 105x140x12/25mm Cassette Oil Seal OEM 3103045AA3Q, Premium Front Wheel — photo 4

Key specs: Inner diameter mm: 105 | Outer diameter mm: 140 | Height mm: 12/25 | Material: NBR | Spec & Model: 105x140x12/25mm｜OEM:3103045AA3Q｜Material:NBR rubber + garter spring｜Structure:RWDR‑KASSETTE cassette composite oil seal｜Fit for heavy‑duty commercial vehicle front axle hub | Spec & Model: 105x140x12/25mm｜OEM:3103045AA3Q｜Material:NBR rubber + garter spring｜Structure:RWDR‑KASSETTE cassette composite oil seal｜Fit for heavy‑duty commercial vehicle front axle hub

  • Inner diameter mm: 105
  • Outer diameter mm: 140
  • Height mm: 12/25
  • Material: NBR
  • Spec & Model: 105x140x12/25mm｜OEM:3103045AA3Q｜Material:NBR rubber + garter spring｜Structure:RWDR‑KASSETTE cassette composite oil seal｜Fit for heavy‑duty commercial vehicle front axle hub
  • Spec & Model: 105x140x12/25mm｜OEM:3103045AA3Q｜Material:NBR rubber + garter spring｜Structure:RWDR‑KASSETTE cassette composite oil seal｜Fit for heavy‑duty commercial vehicle front axle hub

Technical summary

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SpecValue
规格型号105x140x12/25mm｜OEM:3103045AA3Q｜Material:NBR rubber + garter spring｜Structure:RWDR‑KASSETTE cassette composite oil seal｜Fit for heavy‑duty commercial vehicle front axle hub

Pricing: request a quote (B2B / wholesale).

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Product details

This cassette‑type front‑wheel‑hub oil seal OEM 3103045AA3Q is aftermarket replacement part for heavy‑duty commercial vehicle front axle hub. Dimension ID105mm × OD140mm, mounting thickness 12 mm, overall total height 25 mm. Adopts integrated cassette composite NBR rubber structure with built‑in garter spring. Effectively holds wheel‑hub bearing grease inside hub assembly, prevents grease leakage under road vibration. Blocks mud, sand, dust and splash‑water from invading wheel‑hub bearing chamber. Widely used for vehicle repair workshops, domestic auto‑parts wholesale and cross‑border commercial‑vehicle‑parts export business. Core functions Prevent hub bearing grease leakage under heavy‑load driving vibration Isolate hub bearing from mud, grit and splash‑water contamination Integrated cassette profile for stable press‑fit installation into hub housing bore Reliable sealing performance for long‑distance heavy‑duty transportation

Material and process

Material ：NBR nitrile rubber, garter spring Structure ：RWDR‑KASSETTE integrated cassette rotary shaft oil seal Key properties ：Grease resistant, mud‑proof, anti‑vibration, anti‑aging Working temperature:‑20℃ +120℃ Manufacturing features One‑piece vulcanized cassette rubber structure, stable performance under chassis bumping vibration. Precision‑formed sealing lip with garter spring maintains consistent radial pre‑load pressure. NBR compound compatible with wheel‑hub bearing grease for commercial vehicles. Upgrade option ：FKM fluoro‑rubber variant for higher‑temperature heavy‑load working scenarios.

Application and compatibility

Product Type ：Cassette‑type front wheel hub oil seal for heavy‑duty commercial vehicle Key dimension ：ID105mm × OD140mm, mounting thickness12mm, overall height25mm OEM Part‑Number ：3103045AA3Q Compatible media ：Wheel‑hub bearing grease, general chassis lubricants. Fit application ：Heavy‑duty commercial‑vehicle front‑axle wheel‑hub sealing. Buyer reminder ：This is aftermarket replacement spare part for vehicle front‑wheel hub. Please verify shaft dimension, housing bore and cassette seal profile before placing order. Dimension mismatch will result in grease leakage after installation.

Selection guide

Selection Tips 1. Confirm dimension ID105mm, OD140mm, mounting thickness12mm, total height25mm, RWDR‑KASSETTE cassette‑type structure and OEM number 3103045AA3Q. 2. Standard NBR version for normal hub‑grease 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 hub housing bore and shaft surface, remove old seal residue, dirt and metal burrs. Pre‑lubrication Coat sealing lip and shaft surface with matched wheel‑hub bearing grease. Dry installation strictly forbidden; dry friction will damage sealing lip quickly. Orientation Confirmation Main sealing lip points toward hub bearing grease cavity; dust‑proof side faces toward wheel outer side. Wrong installation direction leads to grease leakage and poor contamination‑resistance. Vertical Press‑fit Use dedicated press‑sleeve tool to press cassette 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 seal‑body deformation; tiny hidden damage will cause seepage after commissioning. Rotation Test Manually rotate hub 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 3103045AA3Q oil seal used for?

3103045AA3Q cassette‑type oil seal 105x140x12/25mm, NBR material, heavy‑duty commercial‑vehicle front‑wheel‑hub replacement seal. It keeps wheel‑hub bearing grease inside and blocks mud and splash‑water for front axle hub assembly.

What are full specifications?

Size:ID105mm × OD140mm, mounting thickness12mm, overall height25mm; OEM NO:3103045AA3Q; Material:NBR rubber + garter spring; Structure:RWDR‑KASSETTE cassette composite seal; Working temperature:‑20℃ 120℃; Application:Heavy‑duty commercial‑vehicle front‑wheel‑hub sealing.

Which vehicle fits OEM 3103045AA3Q oil seal?

This cassette‑type oil seal is aftermarket replacement for heavy‑duty commercial‑vehicle front‑wheel hub. Please confirm shaft dimension, housing bore and cassette seal profile 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 grease leakage after installation?

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

What is shelf‑life for NBR cassette 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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