Collection: Parts: Engine

29 products
  • Regular price
    $750.00
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    $750.00
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    R420 Gasoline Engine Engine Type: Single-cylinder, 4-stroke (OHV) Bore × Stroke: 90 × 66 mm Displacement: 420 cc Compression Ratio: 8.5 : 1 Net Power: 8.8 kW @ 3600 rpm (≈ 15.0 HP) Net Torque: 26.5 N·m @ 2500 rpm Starting System: Recoil / Electric starter Ignition System: Transistorized magneto ignition Lubrication System: Forced splash Carburetor: Flat suction valve carburetor Fuel Tank Capacity: 6.5 L Oil Capacity: 1.1 L Dimensions (L × W × H): 465 × 415 × 440 mm Net Weight: 31 kg PTO Shaft Rotation: Counterclockwise (SAE 1-inch, taper Ø23)
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    $15.00
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    $15.00
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    Replacement Spark Plug for Rato R210D-T Engine The 30010-Z010210-00A0 spark plug is a replacement part designed for the Rato R210D-T engine. This plug delivers a reliable spark for efficient combustion, ensuring smooth starts and consistent engine performance. Key Features: Replacement spark plug for the R210D-T engine Provides strong, consistent ignition Built with durable, heat- and corrosion-resistant materials Precision gap for optimal combustion Direct-fit replacement for quick installation Benefits: Ensures dependable engine starts Promotes efficient fuel combustion and smooth operation Reduces risk of misfires and performance issues Supports long service life and minimizes downtime Applications: Specifically designed for Rato R210D-T engines Compatible with AGT HPW3000-1 High Pressure Washer
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    $19.00
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    $19.00
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    Replacement Muffler Seal for Rato R420D Engine The 18101-Z080110-00A0 muffler seal is a replacement part designed for the Rato R420D engine. This seal provides a secure connection between the muffler and exhaust system, preventing leaks and ensuring proper engine performance. Key Features: Replacement muffler seal for the R420D engine Provides a tight, leak-resistant fit in the exhaust system Built from heat- and vibration-resistant materials Precision fit for stable, long-term performance Direct-fit replacement for easy installation Benefits: Prevents exhaust leaks that reduce efficiency and increase noise Supports proper backpressure for optimal engine performance Reduces risk of damage to exhaust components Minimizes downtime with quick, reliable replacement Applications: Specifically designed for Rato R420D engines Suitable for generators, construction equipment, and other machinery powered by the R420D platform
  • Regular price
    $14.00
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    $14.00
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    Replacement Air Intake Seal for Rato R420D Engine The 17002-Z100110-00A0 air intake seal is a replacement part designed for the Rato R420D engine. This seal ensures a tight, secure fit in the intake system, preventing air leaks and maintaining proper engine performance. Key Features: Replacement air intake seal for the R420D engine Provides a secure, airtight connection for the intake system Built from durable, heat- and wear-resistant materials Precision fit for long-lasting performance Direct-fit replacement for easy installation Benefits: Prevents air leaks that can reduce engine efficiency Helps maintain consistent combustion and smooth operation Reduces risk of dirt or debris entering the intake system Minimizes downtime with quick and reliable replacement Applications: Specifically designed for Rato R420D engines Suitable for generators, construction equipment, and other machinery powered by the R420D platform
  • Regular price
    $39.00
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    $39.00
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    Replacement Ignition Coil for Rato R420D Engine The 30400-Z080911-0001 ignition coil is a replacement part designed for the Rato R420D engine. This coil delivers the high-voltage spark required for efficient combustion, ensuring reliable starts and smooth performance in demanding conditions. Key Features: Replacement ignition coil for the R420D engine Generates strong, consistent spark for dependable ignition Built with durable, heat- and vibration-resistant materials Engineered for stable, long-term performance Direct-fit replacement for quick and secure installation Benefits: Ensures fast and reliable engine starting Promotes efficient combustion for smoother operation Reduces risk of misfires and performance issues Minimizes downtime with easy replacement Applications: Specifically designed for Rato R420D engines Suitable for generators, construction machinery, and other equipment powered by the R420D platform May also fit other 13hp to 15hp 390cc-420cc engines such as the Harbor Freight Predator, Honda (GX390), and other Honda "clone" engines.
  • Regular price
    $49.00
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    $49.00
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    Replacement Fuel Tank for Rato R420D Engine The 16620-Z081110-H70P fuel tank is a replacement part designed for the Rato R420D engine. This tank provides a secure and durable reservoir for fuel storage, ensuring reliable supply to the engine during extended operation. Key Features: Replacement fuel tank for the R420D engine Built from sturdy, fuel- and corrosion-resistant materials Designed to withstand vibration and heavy-duty use Precision fit for secure installation Direct-fit replacement for hassle-free setup Benefits: Ensures consistent and safe fuel storage Reduces risk of leaks or contamination Supports long-term reliability of the fuel system Minimizes downtime with fast, dependable replacement Applications: Specifically designed for Rato R420D engines Suitable for generators, construction equipment, and other machinery powered by the R420D platform
  • Regular price
    $14.00
    Sale price
    $14.00
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    Replacement Fuel Outlet Subassembly for Rato R420D Engine The 16680-Z010210-0000 fuel outlet subassembly is a replacement part designed for the Rato R420D engine. This component ensures secure fuel delivery from the tank to the carburetor, maintaining consistent flow and reliable engine operation under demanding conditions. Key Features: Replacement fuel outlet subassembly for the R420D engine Provides a secure, leak-resistant connection for fuel transfer Built from durable, fuel- and heat-resistant materials Precision fit for stable performance Direct-fit replacement for quick installation Benefits: Ensures consistent fuel flow for reliable engine operation Reduces risk of leaks, fuel starvation, or engine performance issues Supports long-term reliability of the fuel system Minimizes downtime with fast and easy replacement Applications: Specifically designed for Rato R420D engines Suitable for generators, construction machinery, and other equipment powered by the R420D platform
  • Regular price
    $14.00
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    $14.00
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    Replacement Fuel Hose for Rato R420D Engine The 90686-Z520110-00M2 fuel hose is a genuine replacement part designed for the Rato R420D engine. Built to deliver safe and reliable fuel transfer, this hose is constructed from durable, fuel-resistant materials to handle the demands of continuous engine operation. Key Features: Genuine Rato replacement fuel hose for the R420D engine Ensures consistent fuel flow between tank and carburetor Made from high-quality, fuel- and heat-resistant material Direct replacement for simple installation Benefits: Maintains reliable fuel delivery for smooth engine performance Helps prevent leaks, cracks, and premature wear Extends service life of the engine’s fuel system Quick replacement minimizes downtime Applications: Specifically designed for Rato R420D engines Suitable for compact construction equipment, generators, and machinery powered by the R420D platform
  • Regular price
    $21.00
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    $21.00
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    Replacement Seal for Rato R420D Engine Air Filter The 17001-Z080210-00A0 air filter seal is a genuine replacement part designed for the Rato R420D engine. This precision-fit seal ensures a tight connection between the air filter and housing, preventing unfiltered air, dust, and debris from entering the engine. Key Features: Genuine Rato air filter seal for the R420D engine Provides a secure, airtight seal in the air intake system Made from durable, heat- and fuel-resistant material Direct replacement for quick and reliable installation Benefits: Prevents dust and debris from bypassing the filter Protects engine components from premature wear Maintains proper airflow for efficient combustion Simple replacement to reduce maintenance downtime Applications: Specifically designed for Rato R420D engines Suitable for compact equipment, generators, and machinery powered by the R420D platform
  • Regular price
    $79.00
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    $79.00
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    Replacement Muffler for Rato 420D Engine The 18100-Z100510-00A0 muffler is a genuine replacement part engineered for the Rato 420D engine. Designed to reduce exhaust noise and emissions, it provides reliable performance while maintaining durability under continuous use. Built with high-quality materials, this muffler ensures consistent operation in tough working environments. Key Features: Genuine Rato muffler for the 420D engine Effectively reduces exhaust noise and emissions Heavy-duty construction for long service life Direct replacement for quick and secure installation Benefits: Improves operator comfort with reduced noise levels Supports cleaner engine operation Built to withstand heat and vibration during heavy use Minimizes downtime with straightforward replacement Applications: Specifically designed for Rato 420D engines Suitable for compact construction machinery, generators, and equipment powered by the 420D platform
  • Regular price
    $22.00
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    $22.00
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    Air Filter Replacement for Rato 420D Engine The 17150-Z100110-00A0 air filter is a genuine replacement part designed for the Rato 420D engine. It provides reliable filtration by capturing dust, dirt, and debris before they enter the combustion system, ensuring efficient engine performance and protection. Key Features: Genuine Rato replacement air filter for the 420D engine High-efficiency filter media traps dust and debris Durable design built for long-lasting use Direct replacement for easy installation Benefits: Maintains clean airflow for optimal combustion Protects engine components from premature wear Supports consistent power and fuel efficiency Simple to replace, reducing maintenance downtime Applications: Specifically designed for Rato 420D engines Ideal for compact construction equipment, generators, and machinery powered by the 420D platform
  • Regular price
    $24.00
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    $24.00
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    Replacement Fuel Cap for Rato 420D Engine The 16730-Z310310-00A0 fuel tank cap is a genuine replacement part designed for the Rato 420D engine. Built for a secure fit, it helps prevent fuel leakage while keeping dirt and debris out of the tank. Its durable construction ensures reliable performance even in demanding work environments. Key Features: Genuine Rato replacement fuel cap for the 420D engine Provides a tight, secure seal for the fuel tank Protects against contamination from dust and debris Built from durable, fuel-resistant materials Benefits: Prevents leaks and evaporation loss Keeps the fuel system clean and protected Simple, quick replacement to minimize downtime Ensures long-term reliability of engine operation Applications: Specifically designed for Rato 420D engines Compatible with compact construction equipment, generators, and machinery using the 420D platform
  • Regular price
    $5.00
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    $5.00
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    Replacement Fuel Strainer for Rato 420D Engine The 16652-Z010710-00A0 fuel tank screening filter is a genuine replacement part designed for the Rato 420D engine. It prevents dirt, debris, and other contaminants from entering the fuel system, helping ensure consistent performance and longer engine life. Key Features: Genuine Rato fuel filter for the 420D engine Screens out contaminants to protect the fuel system Built with durable, fuel-resistant materials Direct replacement for fast and reliable installation Benefits: Helps maintain smooth fuel flow to the engine Reduces risk of clogging and poor performance Extends engine service life with cleaner fuel delivery Minimizes downtime with easy replacement Applications: Specifically designed for Rato 420D engines Suitable for use in compact equipment, generators, and machinery powered by the 420D platform
  • Regular price
    $69.00
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    $69.00
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    Keep your Rato 420D engine running clean and efficient with this replacement air filter. Designed to meet factory specifications, this filter provides reliable protection by capturing dust, dirt, and debris before they reach the engine’s combustion system. Key Features: Genuine OEM air filter for the R420D engine High-efficiency filtration media for maximum protection Durable construction built for long service life Direct-fit design for fast and easy replacement Benefits: Prevents harmful debris from entering the engine Helps maintain consistent engine performance Extends engine life with cleaner air intake Reduces maintenance costs by protecting critical components Applications: Rato R420D engines in compact construction equipment Generators, power equipment, and small machinery using the R420D engine
  • Regular price
    $25.00
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    $25.00
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    OEM Replacement Oil Filter for Rato R740D Engine Ensure your Rato R740D engine continues to run clean and trouble-free with this genuine OEM engine oil filter. Precisely engineered to trap contaminants and protect critical engine components, this filter contributes to longer service intervals and optimal performance. Key Features Genuine OEM filter designed specifically for the Rato R740D 25 HP engine. High-efficiency media captures sludge, metal particles, and debris. Robust construction to resist deformation under pressure and heat. Direct-fit replacement for easy servicing with no modifications needed. Benefits Reduces risk of engine wear and damage from contaminated oil. Helps maintain lubrication efficiency and prolongs engine life. Minimizes maintenance downtime with a reliable, long-lasting component. Supports consistent engine performance and fuel efficiency. Applications Compatible with all Rato R740D engines across multiple equipment types. Ideal for compact excavators, mini skid steers, generators, and other machinery relying on clean engine lubrication.
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    $29.00
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    $29.00
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    OEM screen designed for the Rato R740D engine shroud. This cover prevents debris from entering the cooling system while allowing optimal airflow to the engine fan. Key Features: Precision-fit OEM screen for R740D; Rugged molded construction; Direct installation on blower housing. Benefits: Keeps cooling airflow clear of debris; Protects fan and engine internals; Maintains consistent operating temperature. Applications: Designed to fit all Rato R740D engines.
  • Regular price
    $55.00
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    $55.00
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    OEM Air Guide Shroud for the Rato R740D Engine.  This main housing directs airflow across the cylinder and provides mounting for the intake screen and cover plate. Key Features: Factory-spec shroud assembly for R740D; Heat- and impact-resistant construction; Includes mounting points for screen and cover. Benefits: Ensures efficient engine cooling; Protects internal components from dust and damage; Restores OEM fit and finish. Applications: Compatible with all Rato R740D engines.
  • Regular price
    $25.00
    Sale price
    $25.00
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    OEM top plate for the Rato R740D engine shroud. This cover seals the blower housing and provides an additional barrier against dust, moisture, and debris. Key Features: Genuine OEM fan cover for R740D; Durable molded design with reinforced screw points; Easy to remove for service access. Benefits: Extends the life of engine cooling components; Helps keep fan chamber clean; Maintains smooth engine operation. Applications: Standard fitment on all Rato R740D engines.
  • Regular price
    $120.00
    Sale price
    $120.00
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    OEM Carburetor for Rato R740D Engine (25 HP) Keep your Rato R740D engine performing like new with this genuine OEM carburetor. Built to factory specifications, this replacement ensures precise fuel delivery, smooth starts, and reliable power output under load. Key Features: Genuine OEM Part – Manufactured to original Rato specifications for the R740D 25 HP horizontal shaft engine. Direct Fit Replacement – No modifications required; matches original mounting points, choke, and linkage. Durable Construction – Built from high-quality materials to withstand heavy use and resist corrosion. Complete Package – Includes carburetor assembly and gaskets for a secure, leak-free installation. Performance Restored – Improves idle stability, throttle response, and overall engine efficiency. Applications: Rato / PowerEase R740D (25 HP) horizontal shaft engines Commonly used in commercial equipment, generators, and compact construction machinery Benefits: Extends engine life and reduces downtime Restores lost horsepower and torque Provides peace of mind with factory-certified quality
  • Regular price
    $45.00
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    $45.00
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    OEM Relay for Rato R740D Engine Maintain reliable electrical performance in your Rato R740D engine with this genuine OEM relay. Engineered to control and protect key circuits, this relay ensures consistent current flow to ignition and accessories, preventing overload and minimizing downtime. Key Features: Genuine OEM Part – Designed specifically for the Rato R740D 25 HP engine for proper fit and function. Stable Power Delivery – Provides dependable switching and current regulation across electrical components. Durable Construction – Built to resist heat, vibration, and harsh operating environments. Easy Installation – Direct-fit replacement with plug-and-play compatibility; no modifications required. Compact Design – Fits seamlessly in the existing wiring harness and housing. Benefits: Protects sensitive components from electrical faults. Ensures reliable starting and accessory operation. Applications: Rato R740D (25 HP) horizontal shaft engines. Commonly used in compact loaders, mini excavators, generators, and other equipment powered by the R740D.
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