CAT Relay TOSD-02-120 104-3204 197-4330 | Premier Aftermarket Engine Control Solution

Your high-quality replacement for Caterpillar Excavator parts, resolving issues like excessive oil consumption and electrical system anomalies.

Factory Direct & Custom Manufacturing: The Heart of Your Engine

As a source manufacturer specializing in engine parts export, we offer direct sales and custom development services for a wide range of components, including Cylinder Liners.

Cummins QSB6.7 Cylinder LinerKomatsu 6D102 Cylinder LinerCaterpillar C7 Cylinder LinerIsuzu 4HK1 Cylinder Liner
WhatsApp: +8613532379052

Focus Product: CAT Relay TOSD-02-120

We provide reliable, high-quality alternative parts designed to meet or exceed OEM specifications. The featured CAT Relay, model TOSD-02-120, is a critical component for your Caterpillar machinery, ensuring stable electrical function. This relay is a direct replacement for Part Numbers 104-3204 and 197-4330. We also provide the non-hyphenated equivalents for seamless search integration: 1043204 and 1974330.

Product Specifications

Model NO.Product NamePart NumbersApplication
TOSD-02-120CAT Relay (OEM Alternative)104-3204, 1043204, 197-4330, 1974330Excavator, Construction Machinery

5 Key Product Features

  • Reliability: Engineered for heavy-duty cycling in Caterpillar equipment.

  • Compatibility: Exact fit replacement for the 104-3204 and 197-4330 OEM specifications.

  • Durability: Constructed with high-grade materials to withstand extreme construction environments.

  • Application: Use primarily for excavator and other construction machinery control systems.

  • Model Match: Specifically matched to the TOSD-02-120 component type.

Comprehensive Engine Parts Inventory

Honour Time Machinery Limited specializes in a comprehensive range of diesel engine assembly and spare parts for top brands including CumminsKomatsuCaterpillarIsuzuKubotaYanmar, and Weichai. Whether you need a full overhaul kit or specific components like a piston ring set, we are your trusted engine assembly export supplier.

Core Engine Components We Supply

CategoryProducts
KitsLiner KitGasket KitGasket HeadOverhaul Kit
Piston GroupPistonPiston RingCylinder Block
Rotating PartsCrankshaftConnecting RodCrankshaft BearingEngine Bearing
Valve TrainValve GuideValve SeatCylinder Head
Fuel/Oil/AirNozzleDiesel PumpOil PumpTurbochargerInjectorWater Pump
Electrical/MiscPressure SwitchFlameout SolenoidMonitorAccelerator MotorTransmitterMain ValveRadiatorFan Cooling

Supported Engine Models (Example List)

BrandModels
Komatsu3D82, 3D84, 4D105, 6D95, 6D108, 6D110, 4D84, 4D95, 6D102, 6D105, 6D114, 6D170
KOBELCOJ05E, 6D34T, 6D16, J08E, 6D22T, 6D24T, 6D16T, 6D34
CATERPILLAR3114, 3116, C4, C6, 3064T, S6K, C7, C-9, C13
Mitsubishi4D34, 4D24, K4M, S3Q2, 6D16, 6D24, S4KT, 6D40
ISUZU3LD1, 4LE1, 4BG1, 4HK1, 6SD1, 6WG1, 4LE2, 4JB1, 6BG1, 6HK1, 6WF1
Yanmar4D88E, 4TNE84, 4TNV88, 4TNV94L, 4TNE88, 4TNE94, 4TNV98, 4TNV106
HINOJ05E, J08E, V25C, EF750, P11C, V21C, H06CT, H07D
CUMMINSQSB6.7, QSM11-C, B5.9-C, B3.9-C, QSM11, C8.3-C
VOLVOD6D, D6E, D9E, D12D, D7D, D7E, D12E, D16D

Technical Insights: Components & Maintenance

10 Key Engineering Components Explained

1. Liner Kit: Essential component of the cylinder, installed in the Cylinder BlockCummins B5.9-C Liner Kit.
2. Piston Ring: Seals the combustion chamber, installed on the PistonKomatsu 6D102 Piston Ring Set.
3. Crankshaft Bearing: Supports the crankshaft, installed in the Cylinder Block (Main Bores)Caterpillar C7 Crankshaft Bearing.
4. Valve Guide: Guides the valve stem, installed in the Cylinder HeadIsuzu 4BG1 Valve Guide.
5. Nozzle: Sprays fuel into the combustion chamber, installed in the Injector/Cylinder HeadYanmar 4TNV98 Fuel Nozzle.
6. Pressure Switch: Monitors system pressure (oil/air), installed in the Engine Block or Hydraulic SystemKubota 4TNV88 Pressure Switch.
7. Flameout Solenoid: Cuts off fuel supply to stop the engine, typically installed near the Fuel PumpWeichai WP10 Flameout Solenoid.
8. Turbocharger: Compresses air for better combustion, attached to the Exhaust ManifoldCummins QSM11 Turbocharger Assembly.
9. Water Pump: Circulates coolant, mounted on the Engine Block/Front CoverKomatsu 6D95 Water Pump.
10. Accelerator Motor: Controls engine speed electronically, linked to the Fuel Pump/Throttle BodyCaterpillar 3116 Accelerator Motor.

Maintenance Tip & Troubleshooting

Issue: Excessive Oil Consumption in a CAT C7 Engine

Symptom: Blue smoke from the exhaust, frequently adding engine oil. This often indicates failure in the Piston Ring or worn Valve Guides/Seals.

Solution/Maintenance: Regular maintenance should include checking turbocharger seals and Cylinder Head Gasket integrity. If the piston rings are confirmed to be the issue, perform a top-end Overhaul Kit replacement, ensuring new, high-quality Liner Kit components are installed to fully address the excessive oil consumption fix and prevent premature failure of other parts.

Logistics & Ordering Information

CategoryDetails
ConditionNew
Product NameCAT Relay TOSD-02-120
SpecificationElectrical Relay for CAT Equipment P/N: 104-3204 (1043204)
TrademarkReplacement/Aftermarket Alternative
OriginChina
Production Capacity5000PCS/Year
Payment TermsT/T, Western Union, MoneyGram
Transport PackageCarton (Secure Packaging)
Delivery MethodsExpress: DHL, FedEx, EMS, UPS or by Air/Sea

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Honour Time Machinery Limited is your reliable global partner, specializing in Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai engine assemblies and high-quality, factory-direct spare parts for all heavy equipment.

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