E330B Hydraulic Cylinder | Boom Arm Bucket Cylinder For Caterpillar E330B Excavator Replacement Parts

Our E330B hydraulic cylinder is a full replacement spare part specially engineered for Caterpillar E330B heavy excavator, covering three complete series: Boom Cylinder, Arm (Stick) Cylinder, and Bucket Cylinder Assembly. It perfectly matches the original mounting size, pipe position and hydraulic parameters, enabling direct replacement of old or damaged cylinders without any modification. Widely applicable to heavy-duty working scenarios including mining, road construction, demolition and large-scale earthmoving.

• Boom Cylinder: 242-6862, 2426862
• Arm Stick Cylinder: 340-8944, 3408944
• Bucket Cylinder: 531-3132
• Fit Machine: Caterpillar E330B / 330B Hydraulic Excavator

1. Super Wear-resistant Structure: The cylinder barrel adopts precision deep hole honing technology. The piston rod is treated with 0.08-0.12mm hard chrome plating, featuring anti-rust, anti-scuff and high-pressure resistance, which can stably withstand 32MPa high hydraulic pressure for long-term continuous operation.
2. Imported Sealing Kit, Zero Oil Leakage: Adopts European imported PU + NBR composite oil seals, dust rings and buffer rings. Effectively resists high temperature, mud, sand and hydraulic oil corrosion, greatly improving the overall durability and extending the service life twice longer than ordinary aftermarket cylinders.
3. OEM Equivalent Performance & Cost-Effective: Manufactured strictly according to 1:1 original Caterpillar E330B cylinder drawings, with full performance testing before delivery. It maintains the same OEM standard performance as genuine parts but with a more competitive factory price, effectively reducing your equipment maintenance costs and downtime losses.
4. Strong Load Capacity & Stable Operation: Adopts double-acting hydraulic design, with smooth stretching and retracting movement, sensitive control response and stable lifting force. It can maintain efficient and stable working state under full-load and long-hour continuous digging conditions.
5. Complete Assembly & Plug-and-Play Installation: The whole cylinder assembly is complete with barrel, piston rod, piston, sealing kit, connecting pipes and pin bushings. No additional accessories are required, supporting direct installation after receipt of goods to save your installation time and labor cost.

We support global worldwide shipping. We can deliver our parts to most countries and regions across the globe, including:

• North America: United States, Canada, Mexico
• Europe: United Kingdom, Germany, France, Italy, Spain, Russia, Poland, Belgium
• Southeast Asia: Indonesia, Vietnam, Thailand, Malaysia, Philippines
• Oceania: Australia, New Zealand
• Middle East: Saudi Arabia, United Arab Emirates
• South America: Brazil, Peru