
Surge Tank
- Thomas EF/EFX Compatible
- Freightliner MT45/MT55 Ready
- OE Equivalent Quality



Made in USA
Premium Thomas bus surge tanks designed for EF/EFX front engines and Freightliner MT45/MT55 trucks. Our OE equivalent replacement parts ensure reliable cooling system performance for commercial vehicles. Hand-built in the USA with racing-grade expertise and competitive pricing.



What Thomas bus models are compatible with these surge tanks?
Compatible with Thomas EF/EFX front engine models and Freightliner MT45/MT55 truck chassis applications.
Are these OE equivalent or aftermarket replacement parts?
What technical support is available for installation questions?
Do you offer warranty coverage on surge tank replacements?
Can I get same-day shipping for urgent bus repairs?
Are these surge tanks compatible with other cooling system components?
What payment methods do you accept for online orders?
Talk to our experts for custom solutions and tailored guidance.

Reliable surge tanks for Thomas school bus fleets ensuring safe student transportation operations.

OE replacement cooling components for delivery trucks and commercial vehicle maintenance programs.

Specialized cooling system parts for airport ground support and heavy-duty commercial applications.
Talk to our experts for custom solutions and tailored guidance.



Decades of high-performance cooling system experience from Memphis racing community applied to commercial vehicle applications for superior reliability.
Every surge tank is meticulously hand-crafted in our Tennessee facility with pride in American craftsmanship and attention to detail.
Expert cooling system consultation and technical support available at 901-385-1900 with problem-solving expertise for complex applications.
Connect with our cooling system specialists for technical guidance and quick quotes on OE replacement parts.
For immediate assistance, feel free to give us a direct call at 877-385-1900 You can also send us a quick email at Brian@FSRProducts.com
For immediate assistance, feel free to give us a direct call at 877-385-1900 You can also send us a quick email at Brian@FSRProducts.com