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

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

Features & Benefits

• Integrated RWDR‑KASSETTE composite cassette structure, stable interference press‑fit for front‑wheel hub housing bore.
• NBR sealing lip with garter‑spring pre‑load design, retains hub bearing grease and blocks mud, dust and splash‑water.
• Strict dimensional tolerance control, direct aftermarket replacement matches OEM 3103045AA3Q for heavy‑duty commercial‑vehicle front hub.
• Brand‑new factory‑direct product, durable sealing performance for heavy‑duty chassis working conditions.
• Adequate in‑stock supply, support sample trial, small‑batch retail and large‑volume export wholesale.
• OEM private‑label service available for overseas commercial‑vehicle‑parts distributors.
• Integrated vulcanization craft, excellent anti‑vibration performance for vehicle undercarriage.
• FKM fluoro‑rubber upgrade option available for severe high‑temperature heavy‑load working scenarios.

Material & 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.

Packaging & 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 and lead time：In stock: ships in 1 to 2 days. Not in stock but still in current production: 10 to 15 days. Not in stock and not in production: 25 to 30 days.
  Shipping protection: Moisture‑proof, dust‑proof and anti‑collision packing to prevent deformation during transit.