21739008 Pipe | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta Common-Rail Injector Pipe - Cylinder 1 - Part Number: 21739008

High-pressure common-rail fuel pipe connecting rail 21675446 to the injector on cylinder 1. The pipe is factory formed for the cylinder position and must never be rebent or reused after its sealing cones have been damaged.

⚙️ Key Features

• Cylinder position: 1

• High-pressure common-rail construction

• Factory-formed bends and sealing cones

• Used with common rail 21675446

• Single-cylinder replacement pipe

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21739008 (current OEM service number)

OEM / Related Numbers:

• VOE21739008

• Common rail: 21675446

• Relief valve: 21880675

• Rail pressure sensor: 21880678

• Injector references: 22490430 → 23088481

• Injector reman references: 3801582 / 3801624 → 3801855

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Volvo Penta D8 common-rail fuel systems

Typically suits:

• Engine models / systems:

• TAD840VE / TAD841VE / TAD842VE / TAD843VE

• TAD840GE / TAD841GE / TAD842GE / TAD843GE

• TAD850VE / TAD851VE / TAD852VE / TAD853VE

• TAD851GE / TAD852GE / TAD853GE

• TAD870VE / TAD871VE / TAD872VE / TAD873VE

• TAD880GE / TAD881GE / TAD882GE

• TAD880VE / TAD881VE / TAD882VE / TAD883VE / TAD884VE

• Engine Type: 7.7-litre inline-six electronically controlled diesel

• Fuel System: High-pressure common rail

• Fitment Note: Match the cylinder number, rail version and engine serial number

🔌 Function

Carries high-pressure fuel from the common rail to injector number 1 without pressure loss or leakage.

Common signs of failure:

• Diesel leakage or wetness at a union

• Hard starting or cylinder imbalance

• Rail-pressure fault

• Cracked or chafed pipe

• Damaged sealing cone caused by reuse or overtightening

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging