CAT Pumps 76975 Seal Kit for 4DN Series Pumps – OEM Replacement Part

Part Number: 76975
Category: Pressure Washer Pump Parts → Seal Kits → CAT Pumps Repair Parts
Type: CAT Pumps Seal Kit for 4DNX & 4PPX Series Pumps

The CAT Pumps 76975 Seal Kit is a genuine OEM replacement repair kit designed for servicing compatible CAT Pumps 4DNX and 4PPX Series triplex plunger pressure washer pumps. This complete seal rebuild kit contains the critical high-pressure and low-pressure sealing components required to restore pump performance, maintain operating pressure, and prevent internal water leakage during operation.

Key Features & Benefits

• Genuine CAT Pumps OEM Replacement Part
• Designed for 4DNX and 4PPX Series pumps
• Complete seal rebuild and repair kit
• Restores proper sealing performance
• Helps recover lost pressure and pump efficiency
• Reduces internal water leakage and bypass
• Supports preventative maintenance and pump rebuild programs
• OEM-quality fit, durability, and reliability
• Helps extend pump service life
• Ideal for professional repairs and routine maintenance

Technical Specifications

Manufacturer: CAT Pumps

Part Number: 76975

Product Type: Seal Kit

Application: High-Pressure & Low-Pressure Seal Replacement

Pump Compatibility: CAT Pumps 4DNX & 4PPX Series

OEM Replacement: Yes

Kit Coverage: One Complete Pump

Compatible Pump Models

Compatible with CAT Pumps models including:

• 4DNX25GSI
• 4DNX27GSI
• 4PPX25GSI
• 4PPX30GSI

Always verify pump model compatibility and parts breakdown before ordering.

Compatible Pump Series

• CAT Pumps 4DNX Series
• CAT Pumps 4PPX Series

Typical Applications

• Pressure washer pump rebuilds
• Commercial pressure washer maintenance
• Industrial cleaning equipment repairs
• Fleet washing equipment servicing
• Agricultural cleaning systems
• Contractor equipment maintenance
• Equipment rental fleet service
• Preventative maintenance programs

Performance Advantages

• Restores proper high-pressure sealing performance
• Helps eliminate pressure loss caused by worn seals
• Improves pump efficiency and cleaning effectiveness
• Reduces internal water bypass and leakage
• Protects plungers, manifolds, and internal pump components
• Supports long-term pump reliability and service life
• Genuine OEM components ensure proper fit and performance
• Ideal for preventative maintenance and professional rebuild procedures
• Helps maximize the lifespan of compatible CAT Pumps 4DNX and 4PPX Series pumps