NT855 Valve Lock 127554 Suitable for Cummins Engine Parts

Product Details

Product Overview

This NT855 Valve Lock (Part Number: 127554) is a precision-engineered component designed for use with Cummins NT855 series diesel engines. As a critical element of the valve train assembly, this valve lock ensures secure retention of the valve spring and retainer, maintaining proper valve clearance and preventing valve float under high-stress operating conditions.

Manufactured to OEM size specifications, this component is commonly used in a wide range of heavy-duty equipment, including excavators, forklifts, loaders, bulldozers, trucks, and buses. It is an ideal replacement part for engine overhauls and routine maintenance, offering reliable performance and extended service life.

Key Features & Benefits

• OEM Equivalent Fitment: Manufactured to strict OEM dimensional standards (Part No. 127554), ensuring direct interchangeability with original Cummins components without modification.
• High-Tensile Strength: Constructed from hardened alloy steel to withstand the extreme clamping forces and cyclic loading within the NT855 valve train.
• Precision Machining: Each valve lock features a tapered inner bore and precise split design for a secure, concentric grip on the valve stem, reducing wear.
• Corrosion Resistance: Surface treated to resist rust and pitting, ensuring longevity in demanding environments with moisture or high humidity.
• Cost-Effective Solution: Provides a reliable aftermarket alternative to OEM parts, delivering significant savings without compromising on quality or fitment.
• Rigorous Quality Control: 100% dimensionally inspected before packaging to ensure consistent quality across every batch.

Technical Specifications

OEM Cross-Reference

This Valve Lock 127554 is a direct replacement for the following OEM and cross-reference numbers:

• Cummins OEM: 127554
• Compatible With: NT855, NTA855, N14, and related Cummins heavy-duty engine series

Note: Always verify the original part number and engine model before purchase to ensure compatibility.

Compatibility

This valve lock is specifically designed for the Cummins NT855 engine family. It is commonly used for the following equipment applications:

• Excavators – Caterpillar, Komatsu, Hitachi models with NT855 engines
• Forklifts – Heavy-duty material handling equipment
• Loaders & Bulldozers – Wheel loaders, track loaders, and dozers
• Trucks & Buses – Heavy-duty commercial vehicles
• Other Industrial Equipment – Generators, compressors, and marine applications

Fitment is inferred based on engine model cross-reference. Please confirm your specific engine configuration and valve train components.

Global Supply & Distribution

We offer worldwide shipping from our distribution hub in Guangdong, China, with fast and reliable logistics to major industrial markets including:

• North America – USA, Canada, Mexico (ports: Los Angeles, Houston, Vancouver)
• Europe – UK, Germany, Netherlands, France (ports: Rotterdam, Hamburg)
• Asia-Pacific – Australia, Japan, South Korea, Singapore
• Middle East & Africa – UAE, Saudi Arabia, South Africa
• South America – Brazil, Chile, Argentina

We have extensive experience in international trade and can accommodate small express shipments (DHL, FedEx, UPS) as well as bulk sea freight (FOB/CIF) to meet your project deadlines.

Quality Assurance

• Manufacturing Standards: Produced in ISO-compliant facilities with strict quality management systems.
• Testing:Machinery Test Report and Video Outgoing Inspection available upon request to verify dimensional accuracy.
• Warranty: Backed by a 6-month warranty against manufacturing defects in materials and workmanship.
• Certification: All parts are traceable and meet industry standards for heavy-duty diesel engine components.

FAQ

Q1: How do I confirm this valve lock (127554) fits my NT855 engine?
A: Check your existing valve lock for the stamped part number (127554). Alternatively, measure the valve stem diameter and the lock’s inner taper. This part is designed for standard NT855 valve stems. If your engine uses a different valve size or has been modified, please consult your engine service manual.

Q2: What is the recommended installation procedure for this valve lock?
A: Installation requires a valve spring compressor tool. Compress the spring, place the retainer over the valve stem, insert the two halves of the valve lock around the stem, and slowly release the compressor to seat the lock. Ensure the lock is fully seated and concentric. Always replace valve locks in sets during an overhaul to ensure uniform clamping force.

Q3: Can this valve lock be used for high-performance or turbocharged NT855 applications?
A: Yes. This valve lock is made from hardened alloy steel suitable for standard and turbocharged NT855 engines operating under normal load conditions. For extreme high-rpm or high-boost racing applications, we recommend consulting with a specialist to ensure the lock’s tensile rating meets your specific requirements.