Rotary Shaft Seal 31x43x10.3 DUO NBR - Double Lip Fork Oil Seal | Set of 10 | Fits HONDA (1970-2023)

Rotary Shaft Seal 31x43x10.3 DUO NBR (Double Lip Fork Oil Seal)

The Rotary Shaft Seal 31x43x10.3 DUO NBR is a high-performance radial oil seal specifically designed for motorcycle front suspension systems. Manufactured from NBR (nitrile butadiene rubber) and built with a double lip (DUO) structure, this oil seal ensures superior resistance to oil leakage and external contamination, making it ideal for both street and off-road applications.

This product is supplied in a bulk pack of 10 pieces, ideal for workshops, resellers, or frequent service needs.

The seal is compatible with a wide range of HONDA motorcycles including CB, CBR, CD, CL, CM, CR, CRF, MBX, MSX, and MTX models, from 1970 to 2023, covering 50cc to 550cc engine sizes.

Its DUO design combines a primary sealing lip and a secondary dust lip, ensuring extended life and reliable performance under tough riding conditions. The 31x43x10.3 mm dimension fits many OEM fork assemblies and meets the high durability standards required in motorcycle maintenance.

📐 Technical Specifications:

• Type: Radial Rotary Shaft Seal / Fork Oil Seal

• Design: DUO - Double Lip with Dust Lip

• Material: NBR (Nitrile Butadiene Rubber)

• Dimensions: 31 mm (inner) x 43 mm (outer) x 10.3 mm (width)

• Included in Package: 10 pieces

• Function: Front fork oil seal for motorcycles

• Compatibility:
  ✅ HONDA CB, CBR, CD, CL, CM, CR, CRF, MBX, MSX, MTX
  ✅ Engine range: 50cc - 550cc
  ✅ Model years: 1970-2023

• Resistance:

  • Mineral oil-based oils and greases

  • Water (up to 80°C)

  • Road debris, mud, and dust

• Applications: Motorcycle fork suspensions, shock absorbers

❓ Frequently Asked Questions (FAQ):

1. What is the DUO design in this oil seal?
The DUO type features two lips: a main sealing lip that retains oil and a dust lip that blocks contaminants, extending fork life.

2. What motorcycles is this oil seal compatible with?
It fits a wide range of HONDA motorcycles including CB, CBR, CR, CRF, MTX, and others from 1970 to 2023 with fork tubes sized 31x43x10.3 mm.

3. What material is this seal made of?
Made from NBR rubber, it resists oils, greases, water, and road debris while maintaining flexibility and sealing integrity.

4. How many pieces are included in the set?
This product includes 10 oil seals, making it a perfect choice for workshops or bulk buyers.

5. Can I receive my order quickly?
Yes! All products are in stock and ship within 24 hours from our Polish warehouse in Lublin.

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