Product Overview

This genuine valve guide is a critical engine component designed for Komatsu excavator engines. We supply this high-quality part to a global network of B2B clients, including engine rebuilders, heavy equipment repair shops, and parts distributors across North America, Europe, the Middle East, and Asia-Pacific. It is engineered to restore engine compression and ensure proper valve alignment for optimal performance and longevity.

Key Features & Benefits

• Genuine Quality: Manufactured to meet or exceed original Komatsu specifications for precise fit and reliable performance.
• Enhanced Durability: Made from high-grade materials to withstand extreme temperatures and continuous operation in demanding excavator applications.
• Optimal Heat Dissipation: Designed to effectively transfer heat from the valve stem to the cylinder head, preventing valve seizure and premature wear.
• Precision Machined: Ensures perfect alignment with valve seats, promoting proper sealing, efficient combustion, and reduced oil consumption.
• Restores Engine Performance: Correct installation returns valve timing and compression to factory specifications, maximizing engine power and fuel efficiency.

Technical Specifications

OEM Cross-Reference

This genuine part corresponds directly to the following OEM numbers:

• Komatsu: S1112-21220
• Komatsu (Alternative): S111221220
• Komatsu (Alternative): 111221220

Compatibility

This intake valve guide is compatible with Komatsu engines found in a range of heavy machinery, primarily excavators.

• Engine Models: Komatsu J05E series, Komatsu J08E series.
• Primary Application: Komatsu hydraulic excavators utilizing these engine families. Specific machine models should be verified using the OEM part number.

Global Supply & Distribution

We are a trusted global supplier for automotive and heavy equipment engine parts. Our logistics network ensures reliable delivery to key industrial markets worldwide.

• Worldwide Shipping: We export to all major regions, including North America (USA, Canada, Mexico), the European Union, the United Kingdom, Australia, the Middle East, and Southeast Asia.
• Fast Delivery: Consolidated shipments and established freight partnerships enable cost-effective and timely delivery to major ports and inland logistics hubs.
• Export Expertise: All documentation, including commercial invoices, packing lists, and certificates of origin, is prepared to full international trade compliance standards for smooth customs clearance.

Quality Assurance

Every part is sourced to guarantee performance and reliability for professional engine rebuilding.

• Manufacturing Standard: Produced to original Komatsu engineering specifications (OES).
• Inspection: Components undergo dimensional and visual inspections to verify tolerances and surface finish.
• Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.

FAQ

Q1: How do I confirm this valve guide fits my specific Komatsu engine?
A1: The most reliable method is to cross-reference the part number stamped on your old valve guide or listed in your engine’s official parts catalog with our listed OEM numbers: S1112-21220, S111221220, or 111221220. Always verify compatibility before installation.

Q2: What is the critical installation step for this valve guide?
A2: Proper installation requires pressing the guide into the cylinder head to the exact specified depth and ensuring the bore is clean and free of debris. It is highly recommended to ream the guide to the final specified inner diameter after installation to ensure perfect clearance for the valve stem.

Q3: Can this part be used for both intake and exhaust valves?
A3: This specific part number (S1112-21220) is designated as an intake valve guide. While similar, intake and exhaust guides can have different material specifications or dimensions due to varying thermal loads. Always use the guide specified for its intended valve type.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .