CAT 2U-5405 Lip Seal Inner Caterpillar 158.75MM

( Brand: Cat ), ( Manufacturer Part Number: 2U-5405 ), ( Part Type: Seal ), ( Compatible Equipment Make: Caterpillar )

Review CAT Lip Seal 158.75mm Inner Diameter Genuine Caterpillar

The 2U-5405 lip seal, manufactured by Caterpillar, is a critical component of various heavy-duty machinery, primarily designed for use in harsh environments where sealing and protection against dust, water, and other contaminants are essential. This particular seal measures 158.75mm (6.24 inches) in inner diameter, making it suitable for specific Cat machinery applications.

The 2U-5405 lip seal is an engineered rubber component that forms a dynamic seal between two rotating or oscillating surfaces, preventing the ingress of contaminants while allowing the free movement of the machinery. The seal features a U-shaped cross-section, with the "U" opening facing the pressure side, ensuring optimal sealing performance even under high-pressure conditions. The seal's design also includes an integral lip, which provides an additional layer of protection against contact with contaminants.

The 2U-5405 lip seal is made from a high-quality, specially formulated rubber compound that offers excellent resistance to wear, tear, and compression set. This material ensures a long service life, even in the most demanding environments. Additionally, the seal is designed to provide excellent flexibility and elasticity, enabling it to adapt to varying temperatures and operating conditions.

The 2U-5405 lip seal is supplied pre-lubricated with a high-performance grease, ensuring smooth operation and reducing the risk of premature wear or failure. The seal also comes with an integrated spring that provides the necessary force to ensure a positive seal contact, even under varying operating conditions.

To ensure the highest level of performance and reliability, the 2U-5405 lip seal is manufactured in accordance with stringent quality standards and undergoes rigorous testing to ensure it meets Caterpillar's exacting specifications. This seal is an essential component for various Cat machinery applications, including but not limited to, bulldozers, excavators, and wheel loaders. With its superior sealing performance, durability, and ease of installation, the 2U-5405 lip seal is an indispensable solution for maintaining the efficiency and longevity of Cat machinery.

Pros and Cons of Buying a Caterpillar Type 2 U-5405 Lip Seal (158.75mm Inner)

The Caterpillar Type 2 U-5405 Lip Seal (158.75mm Inner) is an essential component in hydraulic systems, providing a seal between the rotating lip of a hydraulic cylinder and its stationary housing.

a. Durability: Caterpillar is a well-known brand in heavy-duty machinery, and their lip seals are designed to withstand the rigors of industrial applications.

b. Sealing Efficiency: The U-5405 lip seal design ensures an effective seal, minimizing fluid leakage and maintaining hydraulic system efficiency.

c. Compatibility: This lip seal is widely used in various Caterpillar hydraulic cylinders and other industrial applications.

a. Cost: Original Caterpillar lip seals can be more expensive than aftermarket alternatives.

b. Availability: Depending on the specific model and availability, it might take longer to receive the seal compared to aftermarket options.

When considering purchasing a Caterpillar Type 2 U-5405 Lip Seal (158.75mm Inner), it's essential to weigh the pros and cons based on your specific needs and circumstances. If you prioritize the durability and efficiency that comes with an original Caterpillar part, you may be willing to pay the higher cost and wait for availability. On the other hand, if you're looking for a more cost-effective solution, aftermarket alternatives may be a better choice. Ultimately, the decision depends on your budget, time constraints, and the importance of using genuine Caterpillar parts in your application.

If you're in a time-sensitive situation or require a cost-effective solution, consider exploring aftermarket alternatives from reputable suppliers. However, if durability, compatibility, and the peace of mind that comes with an original Caterpillar part are your top priorities, it may be worth the investment to purchase the genuine U-5405 lip seal.

Details:

CAT 2U-5405 LIP SEAL 158.75mm INNER DIAMETER GENUINE CATERPILLAR. Item may be dusty, and have minor scratches from being in storage. Please reference pictures for further information. Key Specifications Inner Diameter: 158.75mm. D350 Series: D350C, D350D, D350E.

Material Construction: Features a metal ring inner skeleton for structural stability and spring-loaded lip to maintain tight seal against the drum shaft prevent lubricant leakage. Primary Functions: Prevents ingress of dust/dirt via a dust lip and retains grease or oil within the bearing support. D300 Series: D300B, D300D, D300E.

part #: 2u5405 prices

• $27.95-$40.00

specifications tractoheavy:

• brand: Cat
• mpn: 2u-5405
• part type: Seal
• compatible equipment make: Caterpillar

seller tractoheavy:

• city: Chippewa Falls, Wisconsin
• rating: 99.6%
• # reviews: 13897

returns tractoheavy:

• time: 30 Days
• paid by: Seller
• policy: Returns Accepted
• method: Money back

payments tractoheavy:

• other
• credit card: Discover
• wallet: Google-pay

offer tractoheavy:

• started: April 7, 2026
• options: Ship-to-home
• availability: In Stock
• quantity: 1
• sold: 0

general tractoheavy:

• condition: New Open box
• Heavy Equipment, Parts Attachments > Heavy Equipment Parts Accessories > Other Heavy Equipment Parts Accessories

shipping tractoheavy:

• service: Economy
• class: Economy
• type: Fixed
• transit: 3-9 Days
• cost: $7.90

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