20363743 Pressure Pipe | Genuine Volvo Penta Part

🔧 Product Description

This genuine Volvo Penta pressure pipe is a rigid formed high-pressure injection pipe calibrated for one specific pump-to-injector position used in the mechanical injection high-pressure delivery line. It is manufactured to the original Volvo Penta dimensional, material and interface requirements so the serviced assembly retains its designed alignment, sealing, load capacity and operating reliability. In service, it carries precisely timed high-pressure fuel from the injection pump to its assigned injector without pressure loss or pulse distortion. Selection must be confirmed by OEM part number 20363743, the exact engine or product model, serial number and installed configuration.

🚤 Compatibility

Typically suits:

• Volvo Penta THD102KB
• Volvo Penta THD102KD
• Volvo Penta THD102K-KB

• Engine Family: THD

⚙️ Key Features

• Genuine Volvo Penta OEM pressure pipe
• OEM part number 20363743
• Keep all ends capped until assembly, do not bend or interchange the pipe, align without preload and tighten both unions to specification.

🔌 Function

Carries precisely timed high-pressure fuel from the injection pump to its assigned injector without pressure loss or pulse distortion. Keep all ends capped until assembly, do not bend or interchange the pipe, align without preload and tighten both unions to specification.

⚠️ Common Signs of Failure

• Diesel misting or wetness at a flare or union
• Hard starting, misfire or uneven cylinder contribution
• Loss of power caused by pressure leakage
• Cracking or fretting at clamps and bends
• Distorted sealing cones or contamination introduced through an open pipe

🛠️ Service Notes

• Cap or plug both ends and keep the pipe and its unions scrupulously clean until the moment it goes on — a pressure line is no place for grit
• Offer the pipe up unstressed: start both unions by hand and let the pipe find its own line before anything is tightened down
• Never bend, straighten or reshape a pressure pipe to make it fit, and never dress or file a sealing cone; a pipe with a damaged or distorted seat is scrap
• Tighten the unions to the figures and sequence in the workshop manual for your engine, and renew rather than refit any pipe the manual treats as a single-use part
• Refit every clip and support bracket so vibration is not carried on the unions, then run up and check for weeps at working pressure, keeping hands well clear of any high-pressure fuel joint

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 20363743 → Supersedes 425683

OEM / Related Numbers

• 425683 earlier number superseded by this part
• 478605 injector
• 469455 injector sealing ring
• 3979082 fuel pipe
• 1545081 leak-off pipe
• 20363745 companion pressure pipe

📦 Condition

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