Site maintenance teams operating Caterpillar E336D excavators experience deteriorating upper-structure rotation accuracy and gradual mechanical wear during high-duty-cycle operations. The 333-2959 swing gearbox brings back sharp slewing behavior and sustained output on heavy-duty job sites.
Item NO.:
333-2959Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockProduced to OEM-equivalent precision for seamless bolt-up replacement, the 333-2959 swing gearbox ensures steady high-torque rotary motion, restrains internal mechanical loss, and pushes out major service milestones.
| Part Number | 333-2959 |
|---|---|
| Part Name | E336D Excavator Swing Gearbox Assembly |
| Compatible Brand | CATERPILLAR |
| Applicable Models | E336D, E336, E338 Excavator |
| Application | Excavator upper structure slewing hydraulic drive system |
| Material | High-strength forged alloy steel housing |
| Product Color | Matte industrial gray with anti-rust coating |
| Working Temperature | -25°C~+60°C |
| Key Function | Converts high-pressure hydraulic fluid into controlled rotary torque |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
Provides powerful and stable rotary force for E336D, E336, E338 excavator upper structure rotation and swing operations.
Converts hydraulic pressure into controlled rotary movement for smooth and precise swing operation.
Provides stable speed reduction, increased torque output, and efficient power transmission under heavy-duty excavation conditions.
Matches 333-2959 specifications for CATERPILLAR E336D series excavator hydraulic swing systems.
FAQ
Q: What are the common symptoms of a failing 333-2959 swing gearbox?
A: Noticeable warning signs comprise unsteady or delayed swing operation, the upper carriage drifting after control lever centering, harsh metallic grinding emanating from the slewing drive, and gradual loss of rotary force during loaded swings.
Q: What should be checked before installing the 333-2959?
A: Verify gearbox oil cleanliness, confirm system alignment matches Caterpillar specifications, inspect the mounting surface flatness and bolt-hole alignment, and flush the drive circuit thoroughly to remove any metallic debris from the previous failure before installation.
Q: Is this 333-2959 a genuine OEM or aftermarket part?
A: This is a 100% new aftermarket assembly manufactured to OEM specifications. RITO HYDRAULIC is a listed supplier to major Chinese excavator OEMs and Fortune 500 companies.
Q: How to confirm the 333-2959 fits my excavator model?
A: Cross-check your existing part number against 333-2959. This assembly fits E336D, E336, E338 excavators. Contact our technical team with your serial number for compatibility confirmation.
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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