VolvoEngine Parts

3068979 — Pressure Regulator Plunger 3068979 For Cummins Engine Qsm11 X15 L10 Hyundai Hl780-9 Volvo Ec460 Excavator

This pressure regulator plunger is a critical component within the fuel injection system, precisely controlling fuel pressure to ensure optimal engine performance. Manufactured to exacting standards, it provides consistent and reliable fuel metering, unlike worn plungers that can lead to erratic pressure. Operators may experience rough idling, hesitation during acceleration, or a general loss of engine power if this part fails.

Pressure Regulator Plunger 3068979 For Cummins Engine Qsm11 X15 L10 Hyundai Hl780-9 Volvo Ec460 Excavator – Part No 3068979 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryEngine Parts
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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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 TypePressure Regulator Plunger
MaterialHardened Steel
ApplicationFuel Injection System
Service LifeReplace as needed based on diagnosis
Compatibility3068979
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of failure include inconsistent engine idle speed and noticeable hesitation when throttle input is applied. If the problem persists, engine performance will degrade further, potentially leading to stalling or difficulty starting. Continued operation risks uneven fuel delivery, causing internal engine stress.

Installation Tip

Ensure the plunger bore within the fuel pump or regulator housing is meticulously clean before installation. Avoid dropping or damaging the plunger tip during handling and insertion.

Service Note

Replace the fuel filter and inspect the fuel pump seals when servicing the pressure regulator plunger.