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The Clutch Slave Cylinder (OEM Numbers: 8-97310989-1 / 8973109891) is a premium-quality, direct replacement hydraulic clutch component designed specifically for ISUZU NLR, NMR, and ELF350 series trucks equipped with 4HL1 diesel engines (2007 onwards).
This precision-engineered cylinder - also known as a clutch operating cylinder or concentric slave cylinder - is a critical part of the hydraulic clutch release system. It receives pressurized clutch fluid from the clutch master cylinder via the hydraulic line and converts it into mechanical movement that actuates the clutch release fork, disengaging the clutch for smooth gear changes.
Part Number
8-97310989-1, 8973109891, 8-97310-989-1
Product Name
Clutch Slave Cylinder / Clutch Operating Cylinder
Car Model
ISUZU NLR85, ISUZU NMR85, ISUZU ELF350
Engine Model
ISUZU 4HL1 Diesel Engine
Condition
100% Brand New
Origin
China Mainland
Main Market
Middle East, Asia, Africa, South America, North America & Europe
Warranty
6 Months
Features & Advantages
OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function
Precision-Honed Bore: Smooth, accurate 25.40mm bore ensures consistent piston movement and reliable hydraulic pressure transmission
Durable Cast Iron Construction: High-strength housing withstands high pressures and continuous operation
Leak-Proof Design: Precision machining and quality seals prevent fluid leaks and system pressure loss
Direct Replacement: Matches OE cylinder dimensions, mounting points (63mm bore distance), and hydraulic connections
LHD & RHD Compatible: Suitable for both left-hand drive and right-hand drive vehicles
Long Service Life: Engineered for light-duty commercial truck applications
Vehicle & Engine Compatibility
This clutch slave cylinder is specifically designed for ISUZU light-duty trucks and commercial vehicles.
Common Applications:
ISUZU NLR85 (Light-Duty Trucks)
ISUZU NMR85 (Light-Duty Trucks)
ISUZU ELF350 (Light-Duty Trucks)
ISUZU NQR, NPR series (as applicable with 4HL1 engine)
Engine Specifications:
ISUZU 4HL1 - 4.8L Inline-4 Diesel
Year Range: 2007 onwards
Application: Light-duty trucks and commercial vehicles
Cross-Reference Numbers:
8-97310-989-1
8973109891
20609094 (IAP Quality Parts)
CY-915 (Japanparts)
85915 (Japko)
08IZ011 (Red-Line)
85-09-915 (Ashika)
Installation Notes
Professional mechanic installation recommended
Locate the slave cylinder - Typically mounted on the transmission bell housing or clutch housing
Disconnect the hydraulic line - Carefully disconnect the hydraulic fluid line from the slave cylinder; cap the line to prevent fluid loss
Remove the old cylinder - Unbolt the old slave cylinder from the transmission (M10 × 1 mounting bolts)
Inspect the release fork - Check the clutch release fork and bearing for wear or damage
Clean the mounting surface - Clean the mounting area on the transmission
Install the new cylinder - Position the new slave cylinder and hand-start mounting bolts
Torque bolts - Tighten mounting bolts to manufacturer torque specifications
Connect the hydraulic line - Reconnect the hydraulic fluid line; use new sealing washers if applicable
Bleed the clutch system - Bleed the hydraulic system to remove air; use the correct procedure and fluid
Check fluid level - Top up the clutch master cylinder reservoir with the correct fluid
Test clutch operation - Depress the clutch pedal; check for smooth operation and correct pedal feel
Inspect for leaks - Check all connections for fluid leaks
Road test - Test drive to verify proper clutch disengagement and gear shifting
Quality Control
Material Verification: Confirms cast iron housing and seal materials meet ISUZU strength, durability, and fluid compatibility specifications
Bore Dimensional Inspection: Cylinder bore diameter (25.40mm), finish, and roundness verified within OEM tolerances
Seal Integrity Testing: Each cylinder tested for seal performance and leak-proof operation
Piston Fit Verification: Piston fit and movement checked for smooth operation
Mounting Bore Distance Verified: 63mm bore distance confirmed for exact fit
Thread Inspection: M10 × 1 thread pitch and form verified for proper bolt fit
Visual Inspection: 100% checked for casting defects, machining flaws, and seal damage
Packaged Safely: Protected and packaged to prevent damage during transit
Packaging and Delivery
Neutral export packing or customized packaging available
Carton or wooden case for safe transportation
Fast delivery for stock items
Shipping by Express Air or Sea
Inquiry
For pricing, availability, or bulk purchase of the Clutch Slave Cylinder 8-97310989-1 8973109891 For ISUZU NLR NMR ELF350 4HL1 Diesel Truck, please contact our sales team for a competitive quote and expert technical support.
Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...
