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RITO 4216948 Socket Bolt ZX330-3 ZX350-3 HPV145 4216948 Hydraulic Pump Mounting Bolt Excavator Main Pump Driving Component

Are loose main pump housing splits, external fluid weeping from center case joints, or sudden thread failures threatening to compromise your excavator overhauls? Standard-grade fasteners frequently stretch or suffer from fatigue fracturing under continuous high-pressure hydraulic pulsations, allowing casing gaps to widen and leading to sudden high-pressure fluid leaks. Secure your main pressure core completely by threading in the high-tensile RITO 4216948 socket bolt group.

  • Item NO.:

    4216948
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Are loose main pump housing splits, external fluid weeping from center case joints, or sudden thread failures threatening to compromise your excavator overhauls? Standard-grade fasteners frequently stretch or suffer from fatigue fracturing under continuous high-pressure hydraulic pulsations, allowing casing gaps to widen and leading to sudden high-pressure fluid leaks. Secure your main pressure core completely by threading in the high-tensile RITO 4216948 socket bolt group.

4216948 Socket Bolt

 
Product Specifications

Part Number  4216948
Part Name Hydraulic Pump Mounting Bolt
Compatible Brand Hitachi
Applicable Models ZX330-3, ZX350-3 Excavators with HPV145 Pumps
Application Excavator hydraulic system
Material High Tensile Nodular Cast Iron and Hardened Alloy Steel
Product Color Industrial Matte Black Finish
Working Temperature -20 to 120 degrees Celsius
Key Function Clamping the main hydraulic pump casing segments or mounting blocks tightly to the engine flywheel housing
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Grade 12.9 High-Tensile Forged Steel

Built with premium high-strength alloy to handle severe continuous casing separation forces without structural elongation.

Leak-Free

Precision Milled Thread Profiles

Deep-cut metric threads provide absolute torque retention to prevent bolt loosening under intense vibration.

Direct Fitment

Hardened Hex Socket Drive Shoulder

Deep-bored socket head handles high manual torque wrench access without stripping or face rounding.

Rigorous Testing

Global Supply Tiering

We offer Original, OEM, and high-performance Aftermarket options to provide flexible procurement strategies for diverse regional markets.
 
 

 

Excavator Hydraulic Part

FAQ

Q: What physical indicators show that a main pump casing 4216948 socket bolt has sustained serious structural stretching or fatigue?
A: Oil weeping past the main housing split line under high throttle, bolt heads that feel loose during weekly inspection checks, or thread scaling found during pump teardowns.
 
Q: What strict alignment and torque standards must technicians follow when overhauling an HPV145 housing with these bolts?
A: Workshop mechanics must clean out the internal block threaded holes completely, apply high-strength thread-locking compound, and torque the bolts in a cross-star pattern to factory specifications.
 
Q: Does this 4216948 part number package include the full set of bolts required to seal a complete dual-pump housing casing split?
A: This listing supplies the single high-tensile component unit to allow flexible ordering options, but we advise procurement managers to replace the full casing bolt set for even clamping distribution.
 
Q: How do these high-tensile fasteners avoid brittle fracture failure under severe continuous rock breaking conditions?
A: The alloy steel body goes through advanced deep thermal case-hardening and tempering conditioning, which provides an exceptionally high shear strength core capable of absorbing sudden impact feedback.
 
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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