CATFilters

1305859 Plate-Reaction — Cat 966g 966g ii

This is a reaction plate used in Caterpillar hydraulic systems to control fluid flow and pressure. It is manufactured to meet stringent OEM quality standards, ensuring superior durability and performance compared to worn or damaged plates. Operators may notice a loss of hydraulic power or erratic machine movements when this component begins to fail.

Plate-Reaction – Part No 1305859 – CAT Spare Part
Part Specifications
BrandCAT
CategoryFilters
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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India
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Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

Installation & Application Notes

Never run an engine without a filter — even briefly causes abrasive damage. Pre-fill fuel filters with clean fuel before fitting to reduce prime time. Replace O-rings on filter housings every second service. Record change dates on filter housing.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeHydraulic System Reaction Plate
MaterialHardened Steel
ApplicationHydraulic Control System
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing reaction plate include a noticeable decrease in hydraulic system responsiveness. If left unaddressed, the problem can escalate to inconsistent or weak hydraulic function, impacting operational efficiency. Continued operation with a compromised reaction plate risks damage to other critical hydraulic components.

Installation Tip

Ensure the mating surfaces are perfectly clean and free of any debris before installation to prevent leaks. Avoid overtightening fasteners, as this can warp the plate or damage the housing.

Service Note

Inspect hydraulic fluid for contamination and check seals and O-rings for wear when replacing the reaction plate.