Description
CAT 9V-6523 CAP
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The CAT 9V-6523 is a genuine Caterpillar engine valve cover/end cap, compatible with various diesel engines and construction machinery. Its core function is sealing, dustproofing, and leak prevention. The following are precise original factory specifications and application information, excluding replacement parts (Cat®)…
Core Technical Parameters
Item Details
Part Model: CAT 9V-6523 (CAP, End Protective Cover / Valve Cover)
Product Type: Engine/Transmission System End Sealing Cover, used for sealing and protecting shaft ends, cavity ends, or vents to prevent oil leakage and impurity intrusion.
Material: 304 stainless steel, stamped and passivated surface, tensile strength ≥520 MPa, hardness HB 187–207, strong corrosion resistance.
Sealing Structure: Integrated nitrile rubber (NBR) sealing ring, cross-sectional diameter 3.5 mm, compatible with sealing groove, sealing pressure 0–0.3 MPa.
Key Dimensions: Outer diameter 185 mm (7.28 in), inner diameter 178 mm (7.01 in), thickness 40 mm (1.57 in), compatible with standard mounting positions.
Unit Weight: Approx. 1.63 kg (3.6 lbs)
Mounting Tolerances: End face flatness ≤0.1 mm, mounting hole position tolerance ≤0.2 mm. mm, compatible with bolt hole distribution circle diameter 165 mm
Operating temperature -40℃ ~ +120℃, suitable for engine oil, gear oil, and other media, oil-resistant and aging-resistant
Protection rating IP65, effectively blocking dust and splashing liquids, suitable for outdoor conditions
Structure and core characteristics
Advantages of stainless steel substrate: 304 stainless steel has good corrosion resistance and rigidity; stamping process ensures dimensional accuracy; passivation treatment improves surface rust resistance, suitable for humid and dusty conditions.
Integrated sealing design: Pre-installed NBR sealing ring, no additional seals required after installation, simplifying the assembly process; the sealing ring has good elasticity and can compensate for minor deviations in the mounting surface, ensuring reliable sealing.
Precise positioning installation: Precise matching of mounting holes and bolts ensures a tight fit between the cover and the mounting surface, preventing loosening due to vibration; strict control of end face flatness avoids seal failure.
Multi-functional adaptability: Can be used as a shaft end cover, cavity protective cover, or vent cover, suitable for engines, gearboxes, etc., highly versatile, combining protection and sealing.
Compatible Models and Application Scenarios
Compatible Engines: Caterpillar diesel engines such as 3116, 3126, 3176C, 3306, and C9.
Compatible Equipment: 815F/816F series road rollers, 950F loaders, and other construction machinery.
Core Purpose: Installed at the end of the engine block, gearbox shaft, or ventilation opening to seal and protect the internal cavity, preventing oil leakage and blocking dust, mud, and other impurities from entering, ensuring the cleanliness and normal operation of internal parts.
