21101027 Compressor | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta engine-driven, water-cooled twin-cylinder air compressor used in heavy-duty industrial installations. The 720 cm³ compressor is from the Knorr-Bremse LK4954/K017528 family and is driven through the engine PTO gear system to supply compressed air for vehicle braking or auxiliary pneumatic equipment. It includes an energy-saving control arrangement and requires engine oil and coolant connections as specified by the installation.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD750VE
• Volvo Penta TAD760VE

• Engine Family: TAD

⚙️ Key Features

• Twin-cylinder, water-cooled reciprocating air compressor
• Approximate displacement: 720 cm³ with 92 mm bore and 54 mm stroke
• Knorr-Bremse LK4954 / K017528 design family
• Engine-lubricated compressor with dedicated coolant and oil connections
• Current service compressor superseding Volvo Penta 21040143
• Engine type: D7-series industrial diesel with engine-driven pneumatic compressor option

🔌 Function

Compresses atmospheric air and supplies the vehicle or equipment pneumatic system. Engine coolant controls compressor temperature while engine oil lubricates the crankshaft, pistons and bearings.

⚠️ Common Signs of Failure

• Slow air-system pressure build-up
• Excessive oil carried into the air system
• Coolant or air leakage around the compressor head
• Knocking, scoring or abnormal mechanical noise
• Compressor running continuously because of internal leakage or low delivery

🛠️ Service Notes

• Renew the gaskets and O-rings at the mounting and drive joint, and make sure the oil feed and drain passages are clear and that the unit gets lubrication before it is put under load
• Check the drive — gear backlash, coupling condition, or belt condition and pulley alignment — as the workshop manual for your engine specifies; a misaligned drive will destroy a new unit
• Fit clean and check the delivery pipe and downstream lines for carbon build-up and restriction; a choked delivery line makes the compressor run hot and is often the real reason the old one failed
• Drain accumulated condensate and oil from the system and service the air filtration and drying arrangement before running the new unit
• Treat it as a unit rather than attempting internal repair or adjustment outside the procedures in the workshop manual for your engine, then run up afterwards and check for air and oil leaks at the joints and confirm the system builds and holds pressure as the manual describes

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21101027 → Supersedes 21040143 → Supersedes 20859282

OEM / Related Numbers

• 21040143 earlier number superseded by this part
• 3801132 earlier number superseded by this part
• 20859282 earlier number superseded by this part
• 85003885 related reference
• 85009885 related reference
• K017528000 related reference
• K017528N57 related reference
• LK4954 related reference

Other-Brand OEM Numbers

• Knorr-Bremse K017528

Aftermarket / Verified Equivalents

• ECUPA: AB.1.K017528
• Auger: 99957
• Vaden Original: 1300 220 001
• ATP: AC-027

📦 Condition

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