Heat Exchanger Seal Kit – Fits Volvo Penta AQAD31A TMD31A TAMD31 TAMD41 (Replaces 22108)

Product Details

This Heat Exchanger Seal Kit is engineered for Volvo Penta diesel engines including AQAD31A, TMD31A, TAMD31, and TAMD41 series. Designed as a direct replacement for applications spanning the AD31, AD41, TMD31, TMD41, and TAMD31/TAMD41 families, this seal kit ensures reliable heat exchanger performance in marine diesel installations.

This aftermarket kit directly replaces OEM part number 22108 and delivers consistent sealing for heat exchanger assemblies across multiple Volvo Penta diesel models.

• Precision-molded gaskets and seals for heat exchanger components
• Suitable for both fresh and saltwater diesel marine applications
• Supplied with all essential sealing elements for complete service

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Technical Specs

Type

Heat Exchanger Seal Kit

Application

Volvo Penta Diesel Engines

Compatible Engine Series

AD31, AD41, TMD31, TMD41, TAMD31, TAMD41, AQAD31A, AQAD41A, D41

OEM Reference

22108

What's in the Box

Confirm kit contents match your service requirements before installation.

Installation Notes

1. Shut down the engine and allow the cooling system to cool completely before beginning work.
2. Drain the coolant from the heat exchanger and cooling circuit following manufacturer guidelines.
3. Disconnect hoses and fasteners securing the heat exchanger to the engine block.
4. Remove the old heat exchanger and carefully clean all mating surfaces, removing old gasket material and residue.
5. Inspect heat exchanger end caps and tubes for corrosion, pitting, or damage; replace the unit if compromised.
6. Install new seals and gaskets from the kit, ensuring proper orientation and alignment on all surfaces.
7. Reinstall the heat exchanger assembly, torquing fasteners to Volvo Penta specifications in the recommended sequence.
8. Reconnect all coolant hoses and secure clamps to prevent leaks.
9. Refill the cooling system with the correct coolant mixture and bleed air from the circuit.
10. Start the engine and monitor for leaks at all seal points; check coolant level and top off as needed.

Troubleshooting & FAQ

How do I know if my heat exchanger seals need replacing?

Common signs include coolant leaks around the heat exchanger, visible corrosion at gasket surfaces, overheating, or loss of coolant without external leaks. If seals appear brittle, cracked, or compressed beyond recovery, replacement is required.

Will this kit fit both freshwater and saltwater cooling systems?

Yes, this seal kit is designed for marine diesel engines operating in both fresh and saltwater environments. Ensure proper coolant mixture and routine maintenance for optimal longevity.

Can I reuse old seals during reassembly?

No. Heat exchanger seals are single-use components. Reusing old gaskets can result in poor sealing, coolant leaks, and potential engine damage. Always install new seals during service.

What torque specifications should I use for reassembly?

Consult your Volvo Penta service manual for model-specific torque values and tightening sequences. Incorrect torque can cause seal failure or component damage.

How often should heat exchanger seals be replaced?

Replace seals whenever the heat exchanger is removed for service, cleaning, or inspection. Typical service intervals vary by operating hours and environment; consult your maintenance schedule.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.

Shipping speed & cost

We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.

Returns and product support

For return eligibility, deadlines and instructions, see SeaSierra’s Refund Policy. Contact SeaSierra before ordering if you need product-specific warranty information.

Safety & Important Info

• Verify images/specifications against your original part. If anything differs—even if your model appears compatible—do not purchase.
• This is an aftermarket replacement, not an OEM component.
• Professional installation is recommended for safety and performance.

About Sea Sierra

• Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
• Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
• Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.