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PC15-3 Mini Excavator Hydraulic Triple Gear Pump Assembly (Shimadzu SBR14 Type OEM 705-41-08070 705-41-08160)
Place of Origin:China
Brand Name:HanRui
Model Number:PC15-3
Product Description
Mini Excavator Hydraulic Power Units
HanRui PC15-3 Mini Excavator Hydraulic Triple Gear Pump (Shimadzu SBR14 Type)
Factory-direct replacement for 1.5-ton compact excavators. Manufactured to original Shimadzu SBR14 / SGP1 3-stage triple pump specifications (Cross Ref: 705-41-08070 / 705-41-08160). Engineered with precision-hardened alloy gears to deliver high volumetric efficiency, steady multi-circuit flow, and quiet hydraulic operation under 24.5 MPa continuous working loads.
⚙️ Pump Model: Shimadzu SBR14 / SBR(1) ⚡ 3-Stage Triple Pump (11-Tooth Spline) 🛡️ 100% Flow & Volumetric Bench Tested
Wholesale Price
$280 – $650 USD/Unit
Direct factory price — complete 3-section gear pump
MOQ & Dispatch
1 Unit (In Stock)
Ready stock for instant worldwide express delivery
Quality Assurance
12 Months
100% pressure holding and flow calibration tested
Shimadzu-Standard Manufacturing & Quality Features
⚙️ Micro-Honed Alloy Gears
Gears are cut from hardened chrome-moly steel with micro-lapped tooth surfaces, lowering hydraulic noise and maximizing volumetric flow efficiency.
🛡️ High-Density Pressure Bushings
Equipped with wear-resistant DU composite bronze bushings and pressure-compensated side thrust plates for minimal internal slippage under high oil heat.
🚜 Multi-Circuit Independent Delivery
Triple independent pump sections cleanly split flow across travel tracks, boom/arm digging, and dozer/swing pilot circuits without compound stalling.
Technical Specifications & Pump Fitment Matrix
| Applicable Machine Models | PC15-3, PC10-7, PC20-7 (1.5–2.0 Ton Mini Excavator) |
| Original Pump Model | Shimadzu SBR14 / SBR(1) Series (Triple External Gear Pump) |
| Cross-Reference OEM Numbers | 705-41-08070, 705-41-08160, 705-41-08180, 705-41-08010 |
| Drive Shaft Specification | 11-Tooth Involute Spline Shaft (Standard SAE 2-Bolt Pilot Flange) |
| Rated Working Pressure | 20.6 MPa ~ 24.5 MPa (206 – 245 Bar) |
| Direction of Rotation | Clockwise (Right-Hand Rotation / CW) viewed from shaft end |
| Installation Standard | 100% Direct Bolt-On OEM Replacement (Inlet/outlet ports match 100%) |
PC15-3 Hydraulic Gear Pump Field Diagnostic Guide
Fault 1: Weak Digging Force & Slow Boom/Arm Lift Under Load
Root Cause: Severe scoring and wear between the gear tooth tips, side wear plates, and internal body cavity, causing catastrophic volumetric leakage.
Field Remedy: Replace with a new HanRui PC15-3 triple gear pump (705-41-08070) to immediately restore original digging speed and pressure.
Field Remedy: Replace with a new HanRui PC15-3 triple gear pump (705-41-08070) to immediately restore original digging speed and pressure.
Fault 2: Hydraulic Oil Foaming, Milky Appearance & Pump Whining
Root Cause: The drive shaft oil seal is hardened or damaged, allowing air to be sucked into the pump suction side during cold morning starts.
Field Remedy: Inspect inlet suction hoses and clamps; replace the pump assembly if shaft grooving or bearing play is present.
Field Remedy: Inspect inlet suction hoses and clamps; replace the pump assembly if shaft grooving or bearing play is present.
Fault 3: Rapid Oil Temperature Rise (>65°C) & Sluggish Compound Movements
Root Cause: High internal bypass oil continuously dumping back inside the pump housing, transforming engine power into wasted thermal energy.
Field Remedy: Clean the hydraulic tank, replace the return filter, and install a brand-new pump unit.
Field Remedy: Clean the hydraulic tank, replace the return filter, and install a brand-new pump unit.
Frequently Asked Questions (FAQ)
Q: Is this a single, tandem, or triple gear pump?
A: This is a 100% complete triple (3-section) hydraulic gear pump. It provides separate, dedicated pressure delivery circuits for the main implements, track travel, and blade/swing functions.
Q: How do I verify whether this pump fits my PC15-3 shaft and bolt flange?
A: The standard PC15-3 pump features an 11-tooth spline shaft and a 2-bolt SAE pilot mounting flange. Send us your pump nameplate or photos of the ports to verify 100% bolt-on compatibility.
Q: Does the pump require pre-filling with oil before starting the engine?
A: Yes. Always prime the pump case with clean hydraulic oil before initial startup to prevent dry friction damage to the gears and DU bushings.
Need a Replacement Hydraulic Gear Pump for Your PC15-3?
Share your machine serial number or nameplate picture (705-41-08070 / 705-41-08160) for instant fitment verification and wholesale quotes.
Request Instant Quote & Delivery Time
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