Products

RITO Excavator Hex Head Bolt 8T-3998-Y Bolt - Hex Head Cap Screw for CAT

Facing costly downtime and unreliable fasteners in mining & excavator operations? RITO Excavator Hex Head Bolt 8T-3998-Y delivers OEM-grade strength for CAT equipment, targeting wholesalers, agents, and mine clients. It secures critical joints in harsh mining/construction sites, outperforming standard bolts in tensile strength and corrosion resistance. Reduce replacement frequency, cut maintenance costs, and ensure operational continuity—vital for B-side buyers prioritizing durability, compatibility, and supply stability.

  • Item NO.:

    8T-3998
  • Order(MOQ):

    1
  • Payment:

    T/T, WESTERN UNION, CHINESE BANK,PAYPAL
  • Product Origin:

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details
Struggling with incompatible parts, inconsistent quality, and delayed shipments? RITO Excavator Hex Head Bolt 8T-3998-Y is engineered for CAT excavators, meeting industrial-grade specs for heavy-load applications. It offers consistent batch quality, precise thread fit, and flexible OEM/OEM/aftermarket supply options, addressing B-side pain points of quality volatility, model mismatch, and supply chain risks. Trusted by global distributors and mine operators, it enhances equipment reliability and procurement efficiency.

8T-3998 Hex Head Cap Screw

 
Product Specifications

Part Number  8T-3998-Y
Part Name Excavator Hex Head Bolt
Compatible Brand Caterpillar
Applicable Models CAT Excavators (e.g., 320, 330, 340 series)
Application Excavator hydraulic system
Material High strength alloy steel
Product Color Metal silver
Working Temperature -40°C to +120°C
Key Function Fastening & securing critical structural joints in excavators
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

High Tensile Strength

Made of premium alloy steel, meets SAE J429 Grade 8 standards, delivering 150 ksi tensile strength to resist shear and breakage under heavy mining loads.

Leak-Free

CAT OEM Compatibility

Direct replacement for CAT 8T-3998, fits multiple excavator models; ensures precise fit without modification, reducing installation time and errors.

Direct Fitment

Corrosion & Wear Resistance

Zinc-plated coating provides excellent rust protection in humid, dusty mining environments, extending service life and lowering replacement costs.

Rigorous Testing

Stable Bulk Supply

Consistent quality, sufficient inventory and fast delivery support wholesale, agent and mining fleet large‑scale procurement.
 

 

Excavator Hydraulic Part

FAQ


Q: How to identify if 8T-3998-Y bolt failure is due to quality or installation issues?
A: Quality-related failure shows uniform thread wear, brittle fracture, or rust; installation issues include cross-threading, over-torque deformation, or loose clamping caused by insufficient torque.
 
Q: What torque and tools are required for installing 8T-3998-Y on CAT excavators?
A: Use a calibrated torque wrench; keep threaded holes clean and dry during installation to avoid thread damage and guarantee reliable long-term fastening.
 
Q: How to confirm 8T-3998-Y fits my CAT excavator model?
A: Match with the original CAT part number 8T-3998. We offer professional model adaptation check to prevent mismatched parts and reduce procurement risks for wholesalers and mine clients.
 
Q: Can 8T-3998-Y perform stably in extreme harsh environments?
A: It features great corrosion resistance, dustproof performance and wide temperature adaptability, maintaining high structural stability under heavy load, wet, cold and dusty mining site conditions.
 
Q: What quality options are available?
A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.

 

Q:Why Choose RITO?

A:Listed Factory

Stable&Reliable Quality

OEM Factory for Chinese Top Excavator Brands

Supplier to Fortune 500 Companies
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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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