CORTECO Rotary Shaft Seal 19033914 (20x35x8)

ACM SC Oil Seal - Compatible with Daihatsu 9004310045

Introducing the CORTECO 19033914 rotary shaft seal, a premium ACM SC oil seal with dimensions 20 x 35 x 8 mm, often referenced in catalogs and OEM lists as 19033914B. This simmerring / shaft seal is engineered for demanding automotive and industrial rotary applications, and is a direct compatible alternative to Daihatsu OE number 9004310045.

Key Specifications

This oil seal / rotary shaft seal is designed for radial sealing of rotating shafts, effectively preventing oil or lubricant leakage in gearboxes, transmissions, transfer cases, and auxiliary systems.

Features & Benefits

• Direct OEM compatibility - matches Daihatsu’s original part number 9004310045 (via CORTECO 19033914B)

• High oil/chemical resistance - ACM material offers excellent stability under exposure to automotive oils and heat

• Efficient sealing performance - single lip (SC) design ensures strong sealing in one direction

• Compact dimensions, robust performance - 20x35x8 mm size is frequently used in compact assemblies

• Proven in application - listed in parts catalogs for Daihatsu models such as Cuore, Move, Mira (manual transmission shaft seal)

Typical Applications

• Manual transmissions in Daihatsu vehicles where OE 9004310045 is specified

• Rotary shafts in gearboxes, transfer cases, or auxiliary gear assemblies

• Automotive, industrial, agricultural machinery requiring reliable shaft sealing

Installation Tips

• Use a light smear of appropriate lubricant on the seal lip during installation to reduce initial friction

• Press evenly, perpendicular to shaft axis, avoiding distortion or damage to the sealing lip

• Ensure the correct orientation: the SC sealing lip should face the oil side

• Check shaft surface finish and cleanliness—scratches or defects will reduce seal life

• Recheck after initial operation for any signs of leakage

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FAQ (Frequently Asked Questions)

Q1: What is CORTECO 19033914B vs 19033914?
A1: The “B” is a designation variant (19033914B), but both refer to the same physical shaft seal dimensions 20x35x8 and same material/SC configuration.

Q2: Does this seal fit my Daihatsu?
A2: It is compatible with Daihatsu OE 9004310045, so if that is the required OEM number for your model, this seal is a direct replacement.

Q3: What material is used, and why ACM?
A3: It's made of ACM (polyacrylate elastomer), which offers strong resistance to automotive oils, moderate temperature stability, and long sealing life.

Q4: What does “SC” mean?
A4: SC means Single-Contact lip (single sealing lip) — designed to seal effectively in one direction against oil leakage.

Q5: How to ensure proper installation?
A5: Use lubrication on the lip, insert straight without tilting, ensure the correct face of lip oriented to the fluid, avoid damage to sealing edge, and verify the shaft’s surface condition.

Q6: What alternative codes or cross references exist?
A6: The seal is cross-referenced as CORTECO 19033914B, SC Simmerring, and as replacement for Daihatsu 9004310045 in many catalogs.