21641866 Pipe | Genuine Volvo Penta Part

🔧 Product Description

Formed oil-system pipe used inside the sump and oil-pump suction arrangement of Volvo Penta TAD11 engines. It maintains the specified oil passage and alignment between the oil pump, strainer and sump-mounted components.

🚤 Compatibility

Typically suits:

• Volvo Penta D9A2L MH
• Volvo Penta D9A2A
• Volvo Penta D9A2C

• Engine Family: D
• Serial Range: SN 186897-

⚙️ Key Features

• Genuine Volvo Penta formed oil pipe
• Original bends and connection geometry
• Used with oil pump 21736639
• Works with sump and oil-level components
• Serial-specific oil-pan arrangement
• Engine type: 10.8/11-litre inline-six turbocharged industrial diesel

🔌 Function

Carries engine oil through the sump-side lubricating circuit while preserving an unrestricted, sealed oil-pump supply path.

⚠️ Common Signs of Failure

• Oil leakage at the pipe joint
• Cracked or bent pipe
• Low or delayed oil pressure
• Aerated oil caused by suction-side leakage
• Damaged sealing ends

🛠️ Service Notes

• Offer the pipe up and check it reaches both connections freely before you tighten anything — a rigid pipe pulled into place is a pipe left under permanent strain, and strained pipes crack at the fittings in service
• Renew the sealing washers, O-rings or union seals that go with the pipe rather than reusing the old ones, and make sure the seats, faces and threads are clean
• Keep the ends capped while you work and blow or flush a pipe through before fitting; anything left inside goes straight into the oil, fuel or coolant system
• Tighten unions and banjo bolts evenly to the figures in the workshop manual for your engine — overtightening distorts the seat and starts the leak you were trying to cure
• Refit every clip and support bracket in its original place and keep the pipe clear of hot or moving parts so it cannot chafe or be shaken to failure

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3812381 (earlier related catalogue reference at the same assembly position)

Other-Brand OEM Numbers

• VOE21641866

Aftermarket / Verified Equivalents

• Earlier related pipe: 3812381
• Associated oil pump: 21736639
• Associated dipsticks: 21849203 and 21733346
• Associated O-ring: 949187
• Associated suction pipe: 20405083

📦 Condition

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