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This expansion signals a broader industry trend: major OEM suppliers are increasingly prioritizing the aftermarket channel as vehicle parc ages and replacement demand grows. DENSO's new multifunction radiator for hybrid vehicles, showcased at AAPEX 2025, simultaneously cools gas engines and batteries—a clear response to the electrification mega-trend.
For independent suppliers and distributors, this development presents both challenges and opportunities. While competition from established OEM brands intensifies, the overall market expansion—projected to grow from $8.58 billion in 2025 to over $14 billion by 2032—creates space for multiple players.
Casselin Auto Parts views this as validation of our strategic direction. As an independent automotive parts supplier, we focus on delivering reliable radiator solutions that meet or exceed OE specifications, serving markets where customers seek quality alternatives to premium-brand pricing. Our manufacturing capabilities and quality control processes ensure that every radiator leaving our facility meets rigorous performance standards.

Sources: DENSO Official Release (July 2025), aftermarketNews (2025), ATR (2025)
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