Reliable Heavy Equipment Engine Components | Direct Replacement | Fast Dispatch Worldwide
Maintenance and overhaul of high-performance engines require precision. The following details refer to the engine 12V bearing sets essential for JCB EcoMAX 444 and JCB EcoMAX 448 series used in 3CX, 4CX backhoe loaders and JS series excavators.
| Part Number | 320-09452 (32009452) / 320-09409 (32009409) |
| Product Name | Engine (12V) Main Bearing Set |
| Compatible Models | JCB EcoMAX 444, JCB EcoMAX 448, 3CX, 4CX, JS130, JS145, JS160 |
| Condition | Brand New, OEM Standard Replacement |
| Stock Status | In Stock / Fast Dispatch |
| MOQ | 1 Piece |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express (DHL, Fedex, EMS, UPS), Air, or Sea |
| Packaging | Industrial Export Packing |
| Application | Engine rebuild, overhaul, maintenance |
Why professional repair shops prioritize our 320-09452 and 320-09409 components for their equipment fleets.
| Feature | Our OEM Standard Replacement | Generic Aftermarket Parts |
|---|---|---|
| 1. Material Composition | High-grade Tri-metal structure for superior load capacity | Standard aluminum alloy with lower durability |
| 2. Precision Fitting | Exact tolerance for EcoMAX 444/448 crankshafts | Approximate sizing leading to early wear |
| 3. Heat Resistance | Engineered for high-temp 12V engine environments | Prone to overheating and seizing |
| 4. Lifecycle | Extended service intervals for heavy construction | Frequent replacement required |
| 5. Compatibility | Matches 320-09452 and 32009452 perfectly | Possible misalignment issues |
| 6. Reliability | Trusted by international trade companies and fleets | Unknown quality control standards |
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Common symptoms include low oil pressure warnings and metallic knocking sounds from the lower engine block. If you detect these during maintenance, immediate inspection of the 320-09452 main bearing is required to prevent crankshaft damage.
Our parts feature an OEM-standard tri-metal structure, which is highly trusted by repair shops and equipment fleets for its ability to withstand extreme pressure in construction environments.
Our team helps operators:
Identify potential risks during maintenance
Recommend suitable replacement parts if needed
Support both inspection advice and parts supply
We specialize in comprehensive engine assemblies and high-precision spare parts for leading brands. Beyond JCB, we provide extensive support for:
Main Brands: Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, Weichai.
Our Core Products: Cylinder Liner, Piston, Piston Ring, Main Bearing, Con Rod Bearing, Thrust Washer, Overhaul Gasket Kit, Fuel Injection Pump, Injector, Crankshaft, Turbocharger, Water Pump, Oil Pump, Cylinder Block, Cylinder Head, Connecting Rod.
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