In stock
Part Number | SKU
559173A

FREIGHTLINER | THOMAS BUS RADIATOR: 2007-2011 FLT B2 (NO FRAME) | OEM VAB1102431 1102431AS

Special Price $601.00 Regular Price $9,999.00

Aftermarket Freightliner radiator for 2010-2012 Thomas Bus. Replaces OEM 1102619AS  & more. Built to OEM standards for long lasting performance and backed by a 2-year warranty. For the same part with a frame see 558740.

FREIGHTLINER | THOMAS BUS RADIATOR: 2007-2011 FLT B2 (NO FRAME) | OEM VAB1102431 1102431AS

Upgrade your 2007–2011 Freightliner B2 bus chassis with this professional-grade support component from American Radiator. Designed with precision fitment in mind, this radiator mounting frame provides the structural accuracy and alignment necessary for effectively installing cooling components on both A/C-equipped and non-A/C models.

Crafted from durable steel and built to OEM standards, the Freightliner B2 chassis frame maintains original mounting locations while securing the radiator, condenser, and related hardware. Its rigid construction prevents misalignment and vibration, improving cooling efficiency and reducing wear on hoses, belts, and mounting brackets during demanding service.

This essential cooling system component supports seamless installation, saving time and labor during maintenance or retrofit operations. Technicians benefit from its exact match to factory dimensions, enabling fast and reliable assembly. With the trusted quality of American Radiator, this chassis frame delivers long-term performance and peace of mind.

Equip your fleet with the solid foundation it needs—choose this Freightliner bus chassis frame for enduring reliability, simplified repair processes, and optimized thermal control covering every route mile after cautious mile.

Please confirm your OEM or Aftermarket number matches before ordering.

559173A
559173
3100-21
310021
239173
THO04
1102431
1102431AS
VAB1102431
1003671
1003700
VAB1003671
558740
558619

Shipping & Returns

Famous Same-Day Shipping: In-stock items typically ship the same day when ordered by 3 PM CST Monday through Friday
30-Day Return Policy: Eligible items can be returned within 30 days (some exclusions apply)

Why Buy From American Radiator?

Trust American Radiator, your reliable source for quality cooling solutions since 2001. With roots in the industry dating back to the 1970s, our team brings decades of experience delivering high-performance radiators, charge air coolers, and DPF systems at competitive prices.

We work directly with trusted domestic and international manufacturers that supply OEM-grade components, ensuring every product meets or exceeds original equipment standards. Whether you need a heavy-duty truck radiator or a replacement for your Freightliner radiator, we’re committed to providing durable, cost-effective solutions that perform.

Have questions? Contact our experienced inside sales team at 877-203-4572 for expert guidance and fast, friendly support.

More Information
Part Number | SKU 559173A
Make FREIGHTLINER, THOMAS BUS
Core Height 29-5/8"
Core Width 25-9/16"
Inlet 2" UPPER LEFT AT 2-1/16"
Outlet 2" LOWER RIGHT AT 7-13/16"
Rows 2
Oil Cooler INCLUDES COOLER ON 18" CENTERS
Depth 2-1/16"
OEM | Aftermarket Numbers 559173A 559173 3100-21 310021 239173 THO04 1102431 1102431AS VAB1102431 1003671 1003700 1102431 VAB1003671 558740 558619
Notes USES SELF TAPING SCREWS FOR FRAME INSTALLATION. SEE 558619 FOR PIN MOUNTING OPTION.

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