4923644 Oil Seal Fits Cummins Engine Heavy Duty Shaft Sealing Replacement Part

Product Overview

4923644 Oil Seal (SEAL,OIL) is a large-specification heavy-duty rotary shaft sealing part customized for Cummins series diesel engines. It is installed on large rotating shafts such as crankshaft and power output shaft to isolate internal engine lubricating oil, avoid oil seepage and oil consumption rise, and prevent external dust, muddy water and impurities from entering the engine cavity to cause shaft wear.

This oil seal can solve common failures including oil leakage at shaft end, shaft surface abrasion, lubrication system contamination and power drop caused by aging, cracking, deformation and lip wear of old oil seals, ensuring long-term stable operation of engine lubrication system.

Core Product Advantages

1. Reinforced Composite Oil-Resistant Rubber

   Adopts high-performance fluororubber composite material, strong oil resistance, will not expand, soften or crack after long-term soaking in high-temperature engine oil, excellent elasticity and tensile resistance.

2. Double-Lip Spring Sealing Structure

   Built-in stainless steel tension spring, double sealing lips closely fit the shaft surface, effectively block oil leakage under high pressure and engine vibration, avoid air intake and oil seepage.

3. Reinforced Anti-Deformation Metal Outer Frame

   Thickened metal outer ring with anti-rust passivation treatment, strong structural rigidity, not easy to deform during installation and long-term use, keep stable sealing gap.

4. Wide Temperature Adaptation Range

   Stable sealing performance under -40℃ ~ +135℃ working environment, no sealing failure in high-temperature engine compartment, no brittle cracking in low-temperature cold areas.

5. Low Friction Wear-Resistant Inner Lip

   Polished smooth sealing lip reduces friction loss on shaft surface, slow wear rate, effectively extend service life of both oil seal and matching shaft.

6. Standard Large-Size Matching Specification

   Complete dimension 27cm27cm8cm and 0.616KG weight, perfectly match Cummins large shaft assembly position, direct replacement without secondary cutting or modification.

7. Strict Factory Full Inspection

   All oil seals pass tightness leakage test, high-temperature aging test and reciprocating friction test, stable batch quality for engine overhaul, maintenance and fleet bulk procurement.

Basic Product Parameters

• Part Number: 4923644

• English Name: SEAL, OIL

• Product Name: Engine Oil Seal / Large Shaft Oil Seal

• Applicable Engine: Cummins Series Diesel Engines

• Overall Dimension: 27cm 27cm 8cm

• Net Weight: 0.616KG

• Main Material: Oil-resistant composite rubber + reinforced anti-rust metal frame

• Working Temperature: -40℃ ~ +135℃

• Core Function: Seal large rotating shaft, prevent engine oil leakage, isolate external dust and moisture, protect engine internal lubrication components

• Key Features: Oil-proof, high temperature resistant, anti-leakage, anti-deformation, wear-resistant, anti-aging, easy installation

• Installation Position: Engine crankshaft, power output large rotating shaft

• Package: Neutral export carton, independent shockproof plastic packaging to prevent extrusion deformation and lip damage

Application Scenarios

Suitable for heavy-duty trucks, construction machinery, mining equipment and diesel generator sets equipped with Cummins diesel engines. Adapt to long-distance full-load transportation, high-intensity continuous operation and dusty harsh working environments. It thoroughly solves shaft-end oil leakage problems, reduces engine oil consumption and avoids premature shaft abrasion failure.

Purchase Reminder

Please confirm part number 4923644 and Cummins engine model before ordering to ensure accurate matching. We support global bulk wholesale for auto parts distributors, mechanical repair workshops and engineering fleets with sufficient stock and competitive prices. Professional installation and shaft matching debugging guidance are provided after sales.