O-ring 4D-4508 CAT bulldozer parts

O-ring 4D-4508 CAT bulldozer parts

The CAT 4D-4508 O-ring is a critical static sealing component for the hydraulic, oil, air, and water systems of Caterpillar bulldozers. Strictly adhering to Caterpillar’s original manufacturing standards and dimensional tolerances, it is designed for long-term stable operation of bulldozers in heavy-duty, high-pressure, dusty, humid, and oily environments. It is primarily used for sealing and leak-proofing connections such as pipe joints, valve bodies, pump valves, and cylinder blocks, effectively locking in hydraulic oil, lubricating oil, and coolant, preventing external mud, dust, and moisture from entering the internal oil passages. This avoids leaks, insufficient pressure, power loss, and equipment downtime caused by seal aging, deformation, or damage. It is an essential sealing component for routine maintenance, repair, and overhaul of the hydraulic, cooling, and fuel systems of Caterpillar bulldozers, and is widely applicable to various harsh working conditions such as mining, infrastructure construction, earthmoving, and wetland operations.

The 4D-4508 O-ring, a fundamental core component of bulldozer system seals, is crafted from Caterpillar’s proprietary high-performance oil-resistant rubber. It possesses excellent elasticity, resilience, and compression set, maintaining stable sealing performance under high and low temperature and high pressure conditions. The sealing ring has a rounded and uniform cross-section, with dimensions strictly matching original factory standards. It fits tightly to the mounting groove without gaps, movement, or detachment. It exhibits excellent oil resistance, aging resistance, corrosion resistance, and tear resistance, allowing for long-term use in hydraulic oil, gear oil, coolant, and other media without hardening, cracking, or swelling failure. Its simple structure and convenient installation require no complex tools; simply insert it into the original groove to form a reliable seal. It is perfectly compatible with various hydraulic joints, valve bodies, and end caps, reducing the risk of leakage at its source.

This product is manufactured strictly according to Caterpillar’s original factory quality specifications. It has undergone rigorous performance testing, including oil resistance, temperature resistance, pressure resistance, aging resistance, and compression set resistance. All indicators meet or exceed original factory standards. It can directly replace the original 4D-4508 O-ring without modification or secondary processing, significantly reducing maintenance difficulty and downtime. Whether for routine equipment maintenance, pipeline inspection, hydraulic pump and valve repair, or complete machine overhaul, the CAT 4D-4508 O-ring provides stable and reliable sealing for all systems of Caterpillar bulldozers, reducing oil and water leaks, extending equipment lifespan, and lowering operating and maintenance costs. It is suitable for all corresponding Caterpillar bulldozer models.

Core Technical Parameters

Compatible Models: All Caterpillar bulldozer models
Part Model: 4D-4508
Product Type: O-ring seal
Material: High-performance oil-resistant rubber
Structure: Circular cross-section, standard size
Applicable Scenarios: Static sealing for hydraulic, fuel, cooling, and pneumatic systems
Operating Temperature: Wide temperature range design, suitable for construction machinery conditions
Quality Standard: Meets Caterpillar original factory dimensions and performance specifications

Core Advantages

Precise original factory size fit, simple installation without modification; strong oil and aging resistance, durable and leak-proof seal; high elasticity and good resilience, small compression deformation; stable and corrosion-resistant material, adaptable to various media; widely compatible with various system connectors, strong versatility; small part, big effect, significantly reducing equipment leakage failure rate.

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482-5751 CLIP-PLASTIC
372-6615 Seal – Bottom
563-5456 Hose-Molded
577-3598 Core As – Radiator
486-5077 Hose-Molded
542-2549 Hose-Molded
9X-2201 Clamp-Hose
124-2121 Coupling
124-2122 Coupling
124-2165 Coupling
124-2153 Coupling
583-5100 RECEIVER AS
583-5099 RECEIVER AS
583-5103 RECEIVER AS
583-5104 RECEIVER AS
117-8568 LOCKNUT-BULKHEAD
2P1293 LOCKNUT – BULKHEAD
2P1286 LOCKNUT-BULKHEAD
2v2043 LOCKNUT-BULKHEAD
6V-9875 Adapter
6V-8640 Adapter
8C-5723 Adapter
6V-8714 Adapter
441-0314 Lamp Gp – LED
601-2214 Lamp GP-LED
499-0546 Isolation Mount
375-0352 Lamp Gp – Halogen (Verticle)
153-2073 Lamp Gp – Halogen (Suspended)
339-3566 Support As
132-7077 Switch-Limit
266-1467 SENSOR GP – PEDAL POSITION
269-1981 SENSOR GP – PEDAL POSITION
8T-2287 Mirror
577-1442 Harness As
512-6385 Camera
488-9163 Camera

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