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Koshin Manuals & User Guides

Koshin is a leading Japanese manufacturer of high-performance water pumps, including engine pumps, submersible pumps, and sprayers for agricultural and industrial applications.

Tip: include the full model number printed on your Koshin label for the best match.

About Koshin manuals on Manuals.plus

Koshin Ltd. is a premier manufacturer specializing in pump technology, renowned globally for producing "The World's Toughest Pumps." Headquartered in Japan and trusted in over 160 countries, Koshin engineers a wide variety of fluid transfer solutions, ranging from heavy-duty trash pumps and centrifugal engine pumps to submersible units and loose pumps for marine use. Their products are designed to withstand rigorous conditions in construction, agriculture, and municipal maintenance environments.

Known for durability and reliability, Koshin pumps often feature their own high-efficiency engines or integrate with other top-tier power plants. The brand emphasizes quality manufacturing and long-term serviceability. In North America, Koshin America provides dedicated distribution and support, offering extended warranties and a comprehensive selection of pumps and parts to meet the demands of professionals and homeowners alike.

Koshin manuals

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KOSHIN AG Series Bare Pump Instruction Manual

27. února 2026
KOSHIN AG Series Bare Pump INTRODUCTION Thank you for purchasing this product. Read this manual carefully before using the product. Store the manual once you have finished reading it. Those…

KOSHIN FS Series Electric Oil Pump Instruction Manual

10. února 2026
ELECTRIC OIL PUMP OPERATION MANUAL 《FS-12D, FS-24D, FS-100D》 Thank you for purchasing this product. This manual is prepared for your safety when operating pump. Please read carefully and comprehend fully…

KOSHIN KTY-100D Diesel Engine Pump User Manual

6. února 2026
KOSHIN KTY-100D Diesel Engine Pump Specifications Product: KTY-100D Diesel Engine Pump Models: SEY-50D, SEY-80D, SEY-100D, STY-50D, STY-80D, STY-100D, KTY-50D, KTY-80D, KTY-100D Product Information Centrifugal pump (Hidels pump), Semi-trash pump Priming…

Návod k obsluze servisního vodního čerpadla KOSHIN SEV-25L-BAC

2. května 2025
KOSHIN SEV-25L-BAC Service Water Pump Product Specifications Manufacturer: Italia Star Com Due S.R.L. Models: SEV-25L-BAC, SEV-25F-BAB, SEV-50X-BAE, SEV-80X-BAC, SEV-100X-BAE, STV-50X-BAA, STV-80X-BAA, STV-100X-BAE, KTZ-50X-BAE, KTZ-80X-BAE, KTZ-100X-BAE, SEH-25H-BAD, SEH-25L-BAA, SEH-50X-BBB, SEH-80X-BAS, SEH-100X-BAE,…

KOSHIN K100DS Engine Parts List and Diagrams

Seznam dílů
Komplexní seznam dílů a podrobný rozložený seznam view diagrams for the KOSHIN K100DS engine. Includes part numbers, descriptions, quantities, and suggested retail prices for each component.

KOSHIN KC22 Engine Parts List and Diagrams

schéma seznamu dílů
Podrobný seznam dílů a rozložené díly view diagrams for the KOSHIN KC22 engine, covering cylinder, piston, crankshaft, muffler, carburetor, and more. Includes part numbers, descriptions, and quantities.

KOSHIN K210-A2-K Engine Parts List and Diagrams

Seznam dílů
Comprehensive parts catalog for the KOSHIN K210-A2-K engine, featuring detailed exploded view diagrams and a complete list of components with part numbers, descriptions, quantities, and prices.

KOSHIN K180-F2 Engine Parts List and Diagrams

Seznam dílů
Podrobný seznam dílů a rozložené díly view diagrams for the KOSHIN K180-F2 engine, including part numbers, descriptions, quantities, and prices. Covers major components like cylinder head, crankcase, crankshaft, camshaft, carburetor, and…

KOSHIN K210 Engine Parts List and Diagrams

schéma seznamu dílů
Komplexní seznam dílů a rozložené view diagrams for the KOSHIN K210 engine, detailing components, part numbers, quantities, and prices for maintenance and service.

Koshin manuals from online retailers

Koshin SEV-80X Centrifugal Pump User Manual

SEV-80X • August 17, 2025
Comprehensive user manual for the Koshin SEV-80X Centrifugal Pump, including setup, operation, maintenance, and troubleshooting guidelines for safe and efficient use.

KOSHIN SEV-50X Petrol Water Pump User Manual

SEV-50X • July 24, 2025
Comprehensive user manual for the KOSHIN SEV-50X Petrol Water Pump, including setup, operation, maintenance, troubleshooting, and technical specifications for model SEV50XBAE.

Koshin SEV-50X Centrifugal Pump User Manual

SEV-50X • July 24, 2025
User manual for the Koshin SEV-50X 2-inch, 6.0 HP Centrifugal Pump, covering setup, operation, maintenance, troubleshooting, and specifications for safe and efficient use.

Koshin support FAQ

Časté dotazy ohledně manuálů, registrace a podpory této značky.

  • Why is my Koshin pump not self-priming?

    Most self-priming issues are caused by an improper hose connection or air leaks on the suction side. Ensure the suction hose is firmly connected using the provided couplings and bands. Also, verify that the pump housing is fully filled with water before starting the engine, as running it dry can damage the mechanical seal.

  • Can I use my Koshin fresh water pump for salt water?

    Standard clear water pumps are not designed for seawater, as salt can cause corrosion and damage. Koshin offers specific models designed for seawater or specialized chemical applications. Refer to your specific model's manual for compatibility.

  • How should I store my Koshin pump for the winter?

    To prevent freezing damage, remove the drain plug at the bottom of the pump casing to drain all water after use. Additionally, discharge all fuel from the fuel tank and carburetor if the pump will be stored for more than 30 days to prevent engine failure.

  • What type of oil should I use in my Koshin engine pump?

    Use the engine oil specified in the Engine Operation Manual included with your pump. Operating without sufficient oil can cause engine seizure, which is not covered by warranty. Always check the oil level before starting the engine.