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22037 18-3889 Cooling Pipe Gasket Kit for Volvo Penta B23 B25 230A 230B AQ131A AQ131B AQ131C AQ131D 250A 250B 251A AQ151A AQ151B AQ151C AQ171A AQ171C | JLM Marine
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Cooling Pipe Gasket Kit – Fits Volvo Penta B23, B25, 230A, 230B, AQ131A-D, 250A, 250B, 251A, AQ151A-C, AQ171A, AQ171C
This Cooling Pipe Gasket Kit is engineered to fit a wide range of Volvo Penta engines, including the B23, B25, 230A, 230B, AQ131 series (A/B/C/D), 250A, 250B, 251A, AQ151 series (A/B/C), and AQ171A/C models. It provides a complete solution for sealing water pipes in your cooling system, ensuring leak-free operation and optimal thermal management.
This kit serves as a direct replacement for OEM part number 22037 and Sierra part number 18-3889, delivering reliable performance for your marine engine's cooling circuit.
- Complete gasket set for cooling pipe systems
- Includes all necessary seals for comprehensive installation
- Designed for Volvo Penta inboard and sterndrive engines
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Volvo Penta (OEM) | 22037 |
| Sierra | 18-3889 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand | Model |
|---|---|
| Volvo Penta | B23 |
| Volvo Penta | B25 |
| Volvo Penta | 230A |
| Volvo Penta | 230B |
| Volvo Penta | AQ131A |
| Volvo Penta | AQ131B |
| Volvo Penta | AQ131C |
| Volvo Penta | AQ131D |
| Volvo Penta | 250A |
| Volvo Penta | 250B |
| Volvo Penta | 251A |
| Volvo Penta | AQ151A |
| Volvo Penta | AQ151B |
| Volvo Penta | AQ151C |
| Volvo Penta | AQ171A |
| Volvo Penta | AQ171C |
Technical Specifications
| Specification | Value |
|---|---|
| Type | Water Pipe Seal Kit |
| Motor & Engine Type | Volvo Penta 230A, 230B, AQ131, AQ151, AQ171 |
| OEM Part Number | 22037 |
| Sierra Part Number | 18-3889 |
Package Contents
This kit contains all the seals needed for a complete cooling pipe gasket replacement:
- 1 × Seal 416033
- 3 × Seal 831622
- 4 × Seal 418412
Installation Guide
- Ensure the engine is completely cool and drained of coolant before beginning work. Disconnect the battery to prevent accidental startup.
- Remove the cooling pipes from the engine block, taking care to note the position and orientation of each connection. Clean all mating surfaces thoroughly to remove old gasket material and debris.
- Inspect the cooling pipes for corrosion, cracks, or damage; replace if necessary. Dry-fit the new seals to confirm proper sizing before final installation.
- Install seal 416033 in its designated location, ensuring it seats evenly without twisting or pinching.
- Place the three seal 831622 units in their respective positions on the cooling pipes or block. Apply light lubrication if needed to prevent tearing during assembly.
- Install the four seal 418412 gaskets at the remaining cooling pipe connections, verifying alignment with the pipe openings.
- Carefully reinstall the cooling pipes, tightening fasteners to manufacturer-specified torque in a criss-cross pattern to ensure even pressure. Avoid over-tightening, which can damage the seals.
- Refill the cooling system with the appropriate coolant mixture per Volvo Penta specifications. Bleed air from the system according to the service manual.
- Reconnect the battery and start the engine, allowing it to reach operating temperature. Monitor for leaks around all gasket locations and check coolant level.
- After the initial run, re-inspect all connections once the engine has cooled. Top off coolant as needed and verify no weeping or seepage occurs.
Troubleshooting & FAQ
Q: How do I confirm this kit fits my Volvo Penta engine?
A: Cross-reference your engine model with the compatibility table above (B23, B25, 230A/B, AQ131 series, 250A/B, 251A, AQ151 series, AQ171A/C). Also verify that your current OEM part number is 22037 or Sierra 18-3889.
Q: How often should I replace these cooling pipe gaskets?
A: Replace these seals whenever you service the cooling system, notice coolant leaks around the water pipes, or during engine rebuilds. Inspect them annually and replace if they show signs of hardening, cracking, or deterioration.
Q: Can I reuse the old gaskets if they look okay?
A: No. Gaskets and seals are designed for one-time use and compress permanently during installation. Reusing old seals can result in leaks and cooling system failure.
Q: What's the difference between this kit and individual seals?
A: This complete kit provides all the seals needed for the cooling pipe system in one package (1× seal 416033, 3× seal 831622, 4× seal 418412), ensuring you have every component for a thorough repair without needing to source parts separately.
Important Notes
- Verify that the product images and specifications match your original part before installation.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
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