21090031 Coolant Pipe | Genuine Volvo Penta Part

🔧 Product Description

Brand-new genuine Volvo Penta companion coolant pipe for the PTO-driven air-compressor installation on TAD750VE and TAD760VE engines. It forms the opposite side of the compressor coolant circuit to pipe 21090026 and must be routed exactly as designed to prevent stress on the fittings.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD750VE
• Volvo Penta TAD760VE

• Engine Family: TAD

⚙️ Key Features

• Companion rigid line in the compressor coolant circuit
• Correct flange/fitting angles for the factory compressor package
• Heat- and pressure-rated metal construction
• Maintains uninterrupted coolant circulation through the compressor
• Individual pipe; mating pipe 21090026 and seals are separate
• Engine type: Volvo Penta 7-litre industrial diesel with optional PTO air compressor

🔌 Function

Completes the coolant path to or from the engine-driven air compressor, controlling compressor operating temperature.

⚠️ Common Signs of Failure

• Coolant seepage at the compressor connection
• Pipe cracked near a formed bend
• Rust scaling or pin-hole leakage
• Compressor running excessively hot
• Repeated seal failure caused by a distorted pipe

🛠️ Service Notes

• Clean both flanges or spigots and check the sealing lands for pitting and corrosion; renew every O-ring, seal or gasket at the joint rather than reusing one that has taken a set
• Lubricate coolant-side O-rings with coolant or a rubber-safe lubricant — petroleum oil and grease swell and soften the rubber and end up in the coolant
• Offer the pipe up and align both ends before pulling any fastener tight, so the joints are not held together by strain from a misaligned pipe or an over-stretched hose
• Check the bore is clear of scale, sealant and debris before fitting, and inspect the pipe for internal corrosion or thinning if the old one was leaking
• Refill with the coolant type and mix specified for your engine, bleed the system through, then check the joints again with the engine hot and up to pressure

🔄 Supersession & Cross Reference

OEM / Related Numbers

• Companion coolant pipe 21090026
• Air compressor 21101027

Other-Brand OEM Numbers

• VOE21090031

OEM Reman Alternatives

• Exchange compressor 21040143

📦 Condition

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