VolvoEngine Parts

85003865 — Def Urea Pump 85002754 85003864 85003865 0444042250 For Mack Mp8 Volvo D13 Engine Fh13 Fh4 Vnl Truck

This is a DEF Urea Pump, essential for the Selective Catalytic Reduction (SCR) system to reduce NOx emissions in diesel exhaust. It precisely meters and injects Diesel Exhaust Fluid (DEF) into the exhaust stream, meeting stringent emissions standards and ensuring efficient SCR catalyst operation. A failing pump may cause increased exhaust emissions, a check engine light, and potential derating of engine power.

Def Urea Pump 85002754 85003864 85003865 0444042250 For Mack Mp8 Volvo D13 Engine Fh13 Fh4 Vnl Truck – Part No 85003865 – 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.

WhatsApp for Price & Availability☎ Call Mumbai Office

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 TypeDEF Urea Pump
MaterialMetal and high-grade plastic components
ApplicationSelective Catalytic Reduction (SCR) system
Service LifeReplace as needed based on diagnostic codes or performance
CompatibilityVolvo D13, Mack MP8
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing DEF Urea Pump include a check engine light or DEF system warning. If ignored, the system may begin to under-dose DEF, leading to increased NOx emissions and potential engine power derating. Continued operation without addressing the issue can result in non-compliance with emissions regulations and possible engine shutdown.

Installation Tip

Ensure the DEF tank is clean and free of any debris before installation to prevent immediate contamination of the new pump. Do not overtighten the pump mounting bolts, as this can damage the housing.

Service Note

When replacing the DEF Urea Pump, it is recommended to inspect and clean or replace the DEF filter and check the DEF injector for proper operation.