CATEngine Parts

7n-1183-419-4742 Plunger — Cat 3412 3408

Name: 7n-1183-419-4742 Plunger — Cat 3412 3408
Brand: CAT
SKU: 7n-1183-419-4742
Availability: InStock

This plunger is a critical component within the fuel injection system, precisely metering fuel delivery to the combustion chamber. It is manufactured to meet stringent OEM quality standards, ensuring superior durability and performance compared to worn or damaged plungers that exhibit reduced fuel flow and inconsistent spray patterns. Operators may notice rough idling, loss of engine power, or increased exhaust smoke when a plunger begins to fail.

Plunger – Part No 7n-1183-419-4742 – CAT Spare Part

Part Specifications

Brand	CAT
Category	Engine Parts
Condition	Aftermarket — OEM Specification
Dispatch	Same-day from Mumbai (before 3 PM IST)
GST Invoice	Available — all orders
Export Docs	Commercial invoice, packing list, COO

Compatible Models

CAT Engine 3412 3412B 3408 Loader 988B

Always verify with serial number before ordering.

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Parts Trading Company · Mumbai, Est. 1956 · Same-day dispatch · Ships worldwide · GST invoice included

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Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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

Part Type	Fuel Injection Plunger
Material	Hardened Steel Alloy
Application	Fuel Injection Pump
Service Life	Replace as needed based on performance diagnostics
Compatibility	OEM specification
Condition	New — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing plunger include a slight loss of engine power and increased exhaust smoke. If ignored, the engine may begin to misfire, idle roughly, and consume more fuel. Continued operation with severely worn plungers can lead to uneven cylinder loading and potential damage to other fuel system components.

Installation Tip

Ensure the fuel injection pump housing is thoroughly cleaned before installation to prevent contamination. Avoid overtightening the pump housing bolts, as this can distort the housing and damage the new plungers.

Service Note

Inspect the fuel injection pump camshaft and drive gears for wear when replacing plungers.

7n-1183-419-4742 Plunger — Cat 3412 3408

Compatible Models

Related CAT Parts

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Installation & Application Notes

Failure Symptoms