Komatsu 702-12-14000 Servo Valve Assembly for S6D155-4 Engine Bulldozers

The Komatsu 702-12-14000 Servo Valve Assembly is a critical hydraulic component engineered for optimal performance in Komatsu bulldozers equipped with the S6D155-4 diesel engine. This servo valve, also known as the Pump Servo Valve Assy or Loosener Control Servo Valve, regulates hydraulic flow to enable precise control of blade tilt and ripper functions, enhancing operational efficiency and safety in demanding construction and earthmoving tasks. As an OEM-compatible replacement part (cross-referenced with 7021214000), it is manufactured to meet or exceed original specifications, ensuring seamless integration without modifications.

Key Features and Specifications:

• Functionality: Provides accurate servo control for hydraulic systems, minimizing downtime and improving machine responsiveness during dozing, ripping, and leveling operations.
• Compatibility: Fully compatible with a wide range of Komatsu bulldozer models, including D85A-18, D85E-18, D85P-18, D80A-18, D80E-18, D80P-18, D150A-1, D155A-1, D155A-2, D355A-3, D355A-5, and D455A-1. Also suitable for Shantui SD22 and SD32 variants.
• Engine Fit: Specifically designed for the Komatsu S6D155-4 engine, a robust 6-cylinder diesel powerplant commonly used in mid-to-large bulldozers.
• Build Quality: Constructed from durable materials to withstand high-pressure hydraulic environments, with a weight of approximately 14.4 kg for easy installation.
• Warranty and Support: Backed by a 1-year warranty against defects, a 90-day return policy, and 24/7 customer service for peace of mind.

This assembly is ideal for fleet operators, construction companies, and maintenance professionals seeking cost-effective replacements that maintain the high standards of Komatsu machinery. Regular inspection and use of genuine or certified aftermarket parts like this servo valve can extend equipment lifespan and reduce operational costs. For installation, consult your Komatsu service manual or authorized technician to ensure proper alignment in the blade tilt and ripper servo valve unit (#8421-).