1-87610142-0 1-31240889-0 Japanese 4HK1 6HK1 Car Clutch Disc for ISUZU FVR

Isuzu 4HK1 / 6HK1 Clutch Disc — OEM 1-87610142-0 / 1-31240889-0 for FVR Truck & Forklift

This clutch disc (OEM part numbers 1-87610142-0 and 1-31240889-0) is a direct replacement for the Isuzu 4HK1 and 6HK1 diesel engines used in Isuzu FVR medium-duty trucks, large-capacity forklifts, and industrial equipment. The clutch disc is the friction component that sits between the engine flywheel and the transmission pressure plate, transmitting engine torque to the transmission when engaged and disconnecting power flow when the clutch pedal is depressed. A worn clutch disc — indicated by slipping under load, difficulty engaging gears, burning smell from overheated friction material, or clutch pedal engagement near the top of its travel — must be replaced promptly to avoid damaging the flywheel and pressure plate friction surfaces, which dramatically increases repair costs.

Manufactured with a high-friction organic or semi-metallic facing material bonded to a sprung-hub center plate, this disc features torsional damper springs that absorb engine power-pulse vibrations and provide smooth clutch engagement without judder or chatter. The hub spline is precision-broached to match the Isuzu transmission input shaft, and the facing material is formulated for high-temperature resistance under the heavy-load clutch engagements typical of truck and forklift operation. The disc is individually balanced to minimize vibration at engine speed.

Direct replacement for Isuzu 4HK1 and 6HK1 engines in FVR trucks, Isuzu 5-10 ton forklifts, and industrial equipment. Always replace the clutch disc, pressure plate, release bearing, and pilot bearing as a complete kit. Browse our transmission parts collection. Reference at Isuzu official website.

Technical Specifications

• SKU: 1-87610142-0
• OEM Numbers: 1-87610142-0 / 1-31240889-0
• Type: Clutch Disc (Friction Plate)
• Material: Organic/Semi-Metallic Facing, Sprung Hub with Torsional Dampers
• Fitment: Isuzu 4HK1 / 6HK1 Diesel Engine
• Application: Isuzu FVR Trucks, 5-10 Ton Forklifts, Industrial Equipment

Compatible Vehicles & Equipment

Kingstream clutch discs are individually wrapped and packed in rigid boxes. QC includes friction material bond testing and hub spline gauge verification. 12-month warranty. Contact us for pricing.