One Stop Solutions 99111 HVAC Heater Core

Brand One Stop Solutions 99111
Fits Acura and Honda · 23 vehicles

OE direct replacement. Matches original form and function for straightforward installation.

Premium aluminum construction. Cadmium-plated tubes help resist premature failure.

Pressure tested. Individually checked for dependable performance.

Cross-references APDI 9010492, National 99312 and 399963 for the same application. See all 3.

$158.92Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $158.92
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Free returns within 60 days if it doesn't fit when fitment is verified.

OE-Style Heater Core for Honda and Acura

One Stop Solutions 99111 is an HVAC heater core built for direct replacement in select Honda and Acura applications. It follows original equipment form and function, uses aluminum construction, and is individually pressure tested for fit and leak control.

Key Features

  • Direct replacement heater core for HVAC systems
  • Aluminum construction throughout
  • Cadmium-plated tubes inside and out to help resist premature failure
  • Individually pressure tested before release
  • Foam and related accessories included with the unit
  • Cross-references APDI 9010492 and National 99312 for the same application

Detailed Description

This One Stop Solutions heater core, part number 99111, is made for drivers servicing the cabin heat system in 2008-2012 Honda Accord, 2009-2014 Acura TSX, and 2010-2011 Honda Accord Crosstour models. It is an aluminum replacement for applications originally designed around a copper-style heater core, with tube plating added to help protect against internal and external corrosion. The part number 99111 is a practical OE-style choice when restoring heat output and HVAC performance in these vehicles.

What It Helps Fix

  • Weak or inconsistent cabin heat
  • Coolant odor inside the vehicle
  • Fogging caused by heater core leakage
  • Loss of heater performance from internal blockage
  • Coolant seepage in the HVAC case

Installation Notes and Tips

Install as a direct replacement in the HVAC heater core location for the listed vehicles. Verify the vehicle year and model before ordering, and inspect the cooling system for contamination or leaks that could affect the new core. Use the included foam and accessories during installation to help maintain proper sealing in the HVAC case.

Quality Assurance

OSC Premium heater cores are individually pressure tested and built to OE form and function standards. The aluminum design and plated tubes are used to improve durability in normal service conditions.

This part fits 23 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2014AcuraTSX3.5LV6N/A
2014AcuraTSX2.4LL4N/A
2013AcuraTSX3.5LV6N/A
2013AcuraTSX2.4LL4N/A
2012AcuraTSX3.5LV6N/A
2012AcuraTSX2.4LL4N/A
2012HondaAccord3.5LV6N/A
2012HondaAccord2.4LL4N/A
2011AcuraTSX3.5LV6N/A
2011AcuraTSX2.4LL4N/A
2011HondaAccord3.5LV6N/A
2011HondaAccord2.4LL4N/A
2011HondaAccord Crosstour3.5LV6N/A
2010AcuraTSX3.5LV6N/A
2010AcuraTSX2.4LL4N/A
2010HondaAccord3.5LV6N/A
2010HondaAccord2.4LL4N/A
2010HondaAccord Crosstour3.5LV6N/A
2009AcuraTSX2.4LL4N/A
2009HondaAccord3.5LV6N/A
2009HondaAccord2.4LL4N/A
2008HondaAccord3.5LV6N/A
2008HondaAccord2.4LL4N/A
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 9010492National — 99312399963