3801291 Unit Injector Exch | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta remanufactured unit injector for engines from serial number 01099384 onwards, to Stage 2 and Tier 2 emissions specification, from the Fuel System group. It weighs 0.205 kg, is listed for a single TAD series application - the reman catalogue lists this number against TAD420VE and TAD620VE - and consolidates three earlier numbers: 20555336, catalogued before as a nozzle, and 21145654 and 3803952, catalogued before as injectors. Supplied on exchange: core deposit 3804291 is charged alongside it and refunded once the old injector is returned.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD620VE

• Engine Family: TAD
• Serial Range: SN01099384-, Stage 2 and Tier 2

⚙️ Key Features

• For engines from serial number 01099384 onwards
• Stage 2 and Tier 2 emissions specification
• Remanufactured exchange unit
• Listed in the reman catalogue for TAD420VE and TAD620VE
• Supersedes 20555336, 21145654 and 3803952
• 6 used per assembly
• Also supersedes Volvo part numbers 20460097 and 24426233

🔌 Function

Pressurises and injects its own cylinder's fuel charge, metered and timed by the engine's control system.

⚠️ Common Signs of Failure

• Misfire, rough idle or an uneven beat from one cylinder
• Black or white smoke and a smell of unburnt diesel
• Knock or rattle from one cylinder under load
• Hard starting and poor response
• Fuel or soot staining around the injector bore

🛠️ Service Notes

• The other unit injectors here are published between 1.17 kg and 1.95 kg against this one's 0.205 kg, so weight is no guide at all - order by part number
• Check the engine serial number and its emissions rating - this injector covers Stage 2 and Tier 2 builds from 01099384 onwards
• Renew the copper washer and body o-rings on every injector disturbed, fit new fuel filters, and return the core against deposit 3804291

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3801291 → Supersedes 20555336 → Supersedes 20526249

OEM / Related Numbers

• 21145654 earlier number superseded by this part
• 3803952 earlier number superseded by this part
• 20555336 earlier number superseded by this part

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging