HomeHVAC > Motors, Core, Case and Related ComponentsNissens 707300 HVAC Heater Core
Part #: 707300

Nissens 707300 HVAC Heater Core

⚙️ 13 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, 3 and 6
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Nissens 707300 HVAC Heater Core
BrandNissens
Part Number707300
Core MaterialAluminum
Tank MaterialAluminum
Outlet Pipe Diameter0.69
Inlet Pipe Diameter0.69
ConstructionBrazed cooling fins
Core Height5.7500
Core Length10.2800
Core Width1.3000
Pipe IncludedYes

This part fits 13 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2021Mazda6Grand Touring2.5LL4GASN/ADims.:_146x261x26
2020Mazda6Signature2.5LL4GASN/ADims.:_146x261x26
2019Mazda6Signature2.5LL4GASN/ADims.:_146x261x26
2018Mazda3Sport2.0LL4GASN/ADims.:_146x261x26
2018Mazda6Sport2.5LL4GASN/ADims.:_146x261x26
2017Mazda3Grand Touring2.5LL4GASN/ADims.:_146x261x26
2017Mazda6Touring2.5LL4GASN/ADims.:_146x261x26
2016Mazda3s Grand Touring2.5LL4GASN/ADims.:_146x261x26
2016Mazda6Sport2.5LL4GASN/ADims.:_146x261x26
2015Mazda3I Sport2.0LL4GASN/ADims.:_146x261x26
2015Mazda6Grand Touring2.5LL4GASN/ADims.:_146x261x26
2014Mazda3i Grand Touring2.0LL4GASN/ADims.:_146x261x26
2014Mazda6Touring2.5LL4GASN/ADims.:_146x261x26

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

80265901071898157BJS761A10BJS761A10AGHP961A10HT400071C

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.