عجلة مشط التبن 307-2756 لـ حفارة صغيرة Caterpillar 307D 308D

CAT Main Control Valve | Hydraulic Distributor (Original Genuine / Rebuilt)
Applicable Machine: Caterpillar 307D / 308D Mini Excavator | original valve

308D Hydraulic Distributor
1. OEM PN Classification & Model Matching
Group 1: 307- Series (307D Base Specification Valve Assembly)
307-2755 / 307-2756: Standard full main valve for early batch CAT307D, complete with boom/arm/bucket/travel spool assembly
307-2759 / 307-2760: Updated revised spool variant for late production 307D, interchangeable with above two codes, optimized inner flow channel
Group 2: 332- Series (Core mainstream PN for 307D & 308D Universal Fit)
332-7937 / 332-7938: Basic configuration distributor without auxiliary breaker oil circuit
332-7939 / 3327939: Most popular OEM code, factory standard valve for stock 307D/308D
332-7940 / 332-7942: Pre-reserved hammer auxiliary valve spool, factory pre-installed piping port for hydraulic breaker retrofit
Group3: 373-7008 | 326-0373 /326-0374 (308D Exclusive Variant)
373-7008: Original genuine main control valve dedicated for CAT308D enhanced hydraulic version
326-0373 /326-0374: Rebuilt spare valve serial numbers, overhauled original casting body, matched 308D special hydraulic calibration
Cross compatibility: All listed part numbers share identical mounting flange, bolt layout and oil port position; only inner spool tolerance & auxiliary oil passage differ per machine original factory setup
2. Product Condition Introduction
Original Genuine Unit: Brand new CAT OEM original valve, factory finished test, complete original marking & serial number, full original accessory set (main relief valve, overload valve, solenoid valve pre-assembled)
Rebuilt Refurbished Unit: Used original CAT casting body fully overhauled, replaced all internal spools, valve plate, seal kits, pressure control parts; bench hydraulic pressure & flow tested before delivery, same installation dimension as genuine OEM
3. Core Structure & Technical Feature
Origin: Original Toshiba IBC18 multi-way hydraulic control valve, load sensing + pressure compensation design
Integrated spools: Boom up/down, arm in/out, bucket open/close, left & right travel, swing, pilot control sub-valve, optional auxiliary breaker spool
System rated working pressure preset per CAT factory parameter, ensures synchronous compound movement without action lag or power loss
All genuine & rebuilt units pass strict hydraulic bench inspection for inner leakage, flow stability and relief pressure performance
4. Supporting Spare Parts Availability
Full overhaul kits separately available for all PN: complete O-ring & seal kit, single spool assembly, main relief valve, overload relief valve, pilot solenoid valve, wear plates for maintenance replacement
5. Packing & Shipment Specification
Anti-rust oil coated for all oil ports & spool ends; wrapped with moisture-proof plastic film then fixed inside export solid wooden crate to avoid collision damage in transit
In-stock genuine/rebuilt items available for prompt dispatch after order confirmation