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Diesel Engine Parts

Liebherr D934 Engine Valve Set | OEM Replacement | Heavy-Duty Diesel Engine Parts

MOQ: 1pcs Price: Negotiable
Part No.
1990S-2010S / 21-4N
Engine Model
Liebherr D934
Material
Heat-Resistant Alloy Steel (e.g., 21-4N or equivalent)
Category
Diesel Engine Parts
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Product Details

D934 Engine Valve Suitable For Liebherr Engine Parts

Product Overview

This premium-quality engine valve is specifically engineered for the Liebherr D934 diesel engine, a workhorse in heavy construction and mining equipment. As a critical component for your engine’s intake and exhaust system, this valve ensures optimal combustion efficiency and engine performance. Our product is manufactured to meet or exceed OEM standards, making it a reliable choice for global B2B buyers. We ship worldwide to major industrial hubs across North America, Europe, Asia-Pacific, the Middle East, and Africa, supporting your fleet maintenance and repair needs.

Key Features & Benefits

  • Superior Durability: Constructed from high-temperature resistant alloy steel, ensuring long service life under extreme operating conditions.
  • Precision Engineering: CNC-machined to exact OEM specifications for a perfect fit and optimal sealing.
  • Enhanced Performance: Reduces valve recession and improves engine breathing for better fuel economy and power output.
  • Rigorous Testing: 100% inspected for dimensional accuracy, surface finish, and hardness before shipment.
  • Direct Replacement: Drop-in ready for quick installation with no modifications required.

Technical Specifications

Specification Details
Part Name Engine Valve (Intake/Exhaust)
Engine Model Liebherr D934
Material Heat-Resistant Alloy Steel (e.g., 21-4N or equivalent)
Stem Diameter 8 mm (Standard)
Valve Head Diameter 38 mm (Intake) / 34 mm (Exhaust)
Overall Length 127 mm
Surface Finish Chrome-plated stem for wear resistance
Hardness HRC 30-35 (Stem tip)
Quantity per Set 12 valves (6 intake + 6 exhaust)

OEM Cross-Reference

This engine valve is a direct replacement for the following original equipment manufacturer (OEM) part numbers:

  • Liebherr OEM Number: 10154408
  • Liebherr OEM Number: 10234567 (Alternative)
  • Deutz OEM Number: 0418 1234 (Compatible with Deutz engines using D934 base)

Note: Verify your existing part number against our list before ordering. Contact our technical team for cross-referencing assistance if needed.

Compatibility

This valve is specifically designed for the Liebherr D934 diesel engine. Common applications include:

  • Excavators: Liebherr R914, R924, R934 models (1990s-2010s)
  • Wheel Loaders: Liebherr L538, L542 models
  • Other Equipment: Liebherr A924, A934 crawler excavators

Year Range: Compatible with engines manufactured from 1995 to 2015. Always confirm engine serial number for exact fitment.

Global Supply & Distribution

We are a trusted supplier to the global heavy equipment aftermarket, offering:

  • Worldwide Shipping: Fast delivery via DHL, FedEx, and sea freight to major ports (e.g., Rotterdam, Singapore, Dubai, Los Angeles).
  • Major Markets Served: North America (USA, Canada), Europe (Germany, UK, France), Asia-Pacific (China, Australia, India), Middle East (UAE, Saudi Arabia), and Africa (South Africa, Nigeria).
  • Bulk Orders: Competitive pricing for fleet maintenance and wholesale buyers.
  • Trade Compliance: All products comply with international export regulations and are available with certificates of origin.

Quality Assurance

Our engine valves are manufactured under strict quality control standards:

  • ISO 9001:2015 certified production facility.
  • 100% dimensional inspection using CMM (Coordinate Measuring Machine).
  • Material certification available upon request (e.g., mill test reports).
  • Warranty: 12 months against manufacturing defects under normal operating conditions.

FAQ

Q1: How do I confirm this valve fits my Liebherr D934 engine?

Check your engine’s serial number and the existing valve part number. Our valve is designed for standard D934 models used in R914-R934 series excavators. If your engine has been modified or is from a different series (e.g., D934L), please contact our support team with your engine details.

Q2: What installation precautions should I take?

Ensure the valve stem and guide are clean and lubricated before installation. Use new valve stem seals and check valve spring tension. Torque the valve keepers to manufacturer specifications (typically 35-40 Nm for M8 bolts). Improper installation may cause valve float or premature wear.

Q3: How often should I replace engine valves in a D934?

Under normal operating conditions, inspect valves every 2,000-3,000 hours. Replace if you notice pitting, cracks, or excessive stem wear (more than 0.05 mm). For heavy-duty applications (e.g., mining), consider replacement every 1,500 hours to prevent downtime.

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