1-81510513-0 Engine Speed Revolution Sensor Replacement for Isuzu 4HK1 4BG1 6RB1 Kobelco SK200-6 SK135 Sumitomo SH120-A1 Excavator 1815105130

Product Overview The 1-81510513-0 Engine Speed Revolution Sensor is a critical diagnostic component designed for Isuzu Diesel Engines and widely utilized in Kobelco and Sumitomo Excavators. This premium electromagnetic induction sensor is engineered to monitor both engine crankshaft rotational speed (RPM) and flywheel speed, providing highly accurate, real-time data to the machine’s electronic control module (ECM) or export relay. By maintaining a steady and reliable speed signal feed, it prevents erratic engine governor behavior, hard starting issues, and hydraulic system synchronization loss, making it an essential maintenance replacement part for heavy-duty construction equipment fleets. Technical Specifications Main OE Number: 1-81510513-0, 1815105130 Interchangeable Numbers: 1-81510513-1, 1815105131, VI1815105130 Function: Engine Crankshaft / Flywheel Revolution Speed Monitoring Connector Type: Heavy-Duty Waterproof and Dustproof Sealed Plug Material: Anti-Corrosion High-Conductivity Metal Housing and Premium Coils Condition: 100% Brand New Premium Aftermarket Replacement Broad Vehicle Compatibility This speed revolution sensor features an extremely broad application spectrum, crossing between various Isuzu industrial engine models and top excavator platforms: Series Compatible Models & Engine Applications Isuzu Engine Platforms 4HK1, 6RB1, 6SD1, 4JG1, 4LE2, 4BD1, 4BG1, 6BG1, 4JJ1 Diesel Engines Kobelco Excavators SK200-6, SK200-6E, SK210-6, SK135, SK135SR Series (Equipped with Isuzu 4BD1/4BG1) Sumitomo Excavators SH120-A1, SH120-A2, SH200 Series Crawlers Other Equipment Compatible with various XE series excavators and industrial power units matching 1-81510513-0 specs Key Benefits Multi-Brand Utility: Seamlessly compatible with multiple industrial machinery heavy hitters like Isuzu, Kobelco, and Sumitomo, allowing for a single part solution in diverse fleets. High Thermal Stability: Built to endure prolonged exposure to blistering engine block temperatures, corrosive fluids, and extreme vibrations found at demanding job sites. Precision Accuracy: Corrects common electrical faults like erratic RPM readings, dashboard sensor codes, or “stuttered idling,” ensuring proper electronic relay controls. Easy Installation: Built to exact original factory specs for a tight, drop-in, plug-and-play fit without cutting or splicing the harness. Cross-Reference Guide This sensor interchanges with the following original and aftermarket part numbers: ISUZU / INDUSTRIAL: 1-81510513-0, 1815105130, 1-81510513-1, VI1815105130 KOBELCO / SUMITOMO: Direct replacement part for factory speed pick-up inductors on listed excavator frames Maintenance Tip: If your Kobelco SK200-6 or Sumitomo SH120-A1 experiences sudden power loss under load, rough idling, or failure of the auto-deceleration system, the 1-81510513-0 sensor should be checked. Because it operates close to moving engine parts, check the magnetic tip for any fine metal sliver buildup. Clean it completely or replace it with this new unit to ensure uninterrupted signal transmission.