312EL Hydraulic Boom Cylinder 95mm Bore 1082mm Stroke Aftermarket 358-2096
Premium aftermarket boom hydraulic cylinder with OEM part number 358-2096 / 3582096, direct replacement for 312EL medium crawler excavator. It controls boom lifting and lowering for municipal engineering, roadside trenching, landscaping and small-scale earthmoving jobs. Produced strictly per original blueprint, identical pin spacing, oil port position and overall dimension to realize direct bolt-on mounting without field cutting or modification.
| Item | Specification |
|---|---|
| Product Name | Hydraulic Boom Cylinder |
| Applicable Model | 312EL |
| OEM Part No. | 358-2096, 3582096 |
| Grade | Brand New Premium Aftermarket |
| Warranty | 12 months against manufacturing defects |
| MOQ | Single piece in stock ready for dispatch |
| QC Standard | ISO9001 certified with full hydraulic testing |
| Spec Item | Data |
|---|---|
| Bore Diameter | 95mm |
| Piston Rod Diameter | 65mm |
| Working Stroke | 1082mm |
| Rated Working Pressure | 33.5MPa |
| Factory Test Pressure | 50.25MPa (1.5×rated pressure) |
| Barrel Material | ST52 seamless honed alloy steel |
| Piston Rod | Heat-treated carbon steel + 28~32μm hard chrome plating, HRC68-70 wear resistant |
| Seal Set | Imported PU+NBR composite high-temperature resistant seals |
| Working Temperature | -25℃ ~ +85℃ |
| Design Service Life | ≥7800 working hours under regular construction load |
| Mount Type | Double lug connection with quenched wear-resistant copper bushings |
- Precise OEM Interchange: Fully matches original 358-2096 structural size, perfectly connects original hydraulic pipeline and boom linkage of CAT312EL.
- Optimized Light-duty Reinforced Build: Specially designed for mid-size urban excavator working conditions, anti-shock from occasional gravel collision and avoid abnormal bending.
- Strict Pre-delivery Inspection: Each cylinder undergoes full pressure tightness and cyclic movement test before leaving factory to rule out internal and external oil leakage risks.
- Economical Replacement Option: Same operational performance as genuine CAT spare part with far lower cost to reduce end users’ maintenance budget.
- Multiple Logistics Options: In-stock goods ship within 3 working days; urgent air shipping 3~7 working days, cost-effective sea transport around 30~38 days.
Our factory has specialized in CAT E/EL series mid-size excavator hydraulic cylinders over 13 years, covering boom, arm and bucket cylinders for CAT312EL,320EL,329EL models, products widely exported to Southeast Asia, Africa and Middle East spare parts wholesalers.
Q1: Can this boom cylinder fit older CAT312D model?
A: No, 312D uses distinct part number with different mounting hole distance, cross installation is impossible.
Q2: Is repair seal kit included inside original cylinder package?
A: Standard package does not attach spare seal kit, supporting separate seal purchase with preferential bundled pricing.
Q3: How do you prevent rust damage during long humid sea voyage?
A: Inner cavity filled with anti-rust oil, rod coated anti-rust grease, wrapped waterproof film and packed with thick export plywood case.
Q4: Any price discount if I buy multiple cylinders in one shipment?
A: Volume order enjoys tiered discount, more purchasing quantity brings better unit price and shared shipping cost.
Q5: What should I provide if I apply for warranty service after leakage occurs?
A: Take clear pictures of leaking position plus equipment serial code, we arrange free spare seals or professional remote troubleshooting guidance.
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