20726077 3801578 VOLVO PENTA WATER PUMP TAD550GE TAD720GE TD520VE

SKU: GABOX-157
10 in stock
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Description

Product Long Title: Water Pump For Volvo Penta TAD550GE TD520VE TAD720GE TAD722GE Diesel Engine – Replaces 20726077 3801578 – Heavy Duty Cooling Pump Assembly
Specifications Application Type: Industrial / Generator / Marine Diesel

Engine Type: Volvo Penta Inline Diesel

Drive Type: Belt Driven

Pump Type: Centrifugal Coolant Pump

Housing Material: Cast Iron

Impeller Material: Cast / Precision Balanced

Seal Type: Mechanical Seal (High Temperature Resistant)

Bearing Type: Heavy-Duty Sealed Bearing Assembly

Rotation: OEM Specified Direction

Mounting Style: Direct Bolt-On

Gasket Surface: Precision Machined
20726077
3801578

 

Description: This heavy-duty water pump is designed for Volvo Penta industrial and generator diesel engines including TAD and TD series applications. It ensures proper coolant circulation through the engine block, cylinder head, radiator, and heat exchanger system.

Engine overheating in generator and industrial applications can cause catastrophic damage. This pump restores full coolant flow capacity and maintains stable operating temperature under continuous load conditions.

Engineered to meet or exceed OEM cooling flow and pressure requirements.

Ideal for generator sets, standby power units, marine auxiliary engines, and industrial power systems.

 

What Is Included: • Complete Water Pump Assembly
• Pre-installed Bearing and Seal
• Mounting Gasket
• O-ring (if applicable by version)

Note: Pulley and mounting hardware typically not included unless specified.

 

Engine Number: Commonly used on:

TAD550GE
TD520VE
TAD720GE
TAD722GE

Verify engine model and serial number before purchase.

Interchange Part Number for Reference: Applications: 20726077
3801578

Reference only. Confirm physical match before ordering.

 

 

Superseded Part Number:  
Applications: Used in Volvo Penta powered:

• Generator Sets
• Industrial Power Units
• Marine Auxiliary Engines
• Construction Equipment
• Pump Drives
• Standby Power Systems

 

Common Failure Symptoms: Replace the water pump if you notice:

 

• Engine overheating under load

• Coolant leak from weep hole

• Grinding or bearing noise

• Coolant dripping from shaft area

• Coolant circulation failure

• High engine temperature alarms on genset

 

Ignoring pump failure can lead to head gasket failure, warped head, or liner damage.

Important Fitment Note:

 

This pump fits specific Volvo Penta TAD and TD series engines only.

It does NOT fit automotive Volvo passenger vehicles.

Always confirm:

• Engine model
• Engine serial number
• Old pump casting number

If unsure, send us your engine data plate photo.

 

Warning: Do not reuse old coolant contaminated with oil or debris.
Flush the cooling system before installation.
Replace the thermostat if overheating occurred.
Inspect the drive belt and tensioner condition during installation.

Improper installation may cause seal failure and coolant leakage.

 

Quality Assurance Note: • Pressure tested mechanical seal
• Balanced impeller for smooth operation
• Precision machined housing
• Leak tested before packaging
• Designed for continuous-duty generator applications
Technical Recommendation: If pump failed due to overheating:

1.    Pressure test radiator and heat exchanger

2.    Inspect thermostat operation

3.    Check belt alignment and tension

4.    Verify coolant mixture 50/50 antifreeze

5.    Check for combustion gases in coolant

For high-hour generator engines, proactive pump replacement during overhaul reduces downtime risk.

Features: • Direct OEM Replacement
• Heavy Duty Industrial Cooling Design
• High Temperature Seal
• Long Service Life Bearings
• Direct Bolt-On Installation
• USA Stock – Fast Shipping
• Fleet and Generator Ready

 

Designed for:

• Generator service companies
• Industrial maintenance teams
• Marine service yards
• Rental equipment fleets

Bulk purchasing is available for multi-unit generator facilities.

 

Shipping Weight and Dimensions: Approximate Weight: 12–18 lbs
Package Dimensions: 12 x 10 x 8 inches

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