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Heating and Cooling› Radiators
CSF
CSF 2862 - Mazda NA Miata Radiator
SKU: C00B 2862
Easy — 1–2 hours
Overview
The design includes ultra-efficient, multi-louvered fins and CNC-machined brackets and fittings for durability and a precise fit. It is a true "drop-in fit" replacement, requiring no modifications for installation and accepts all attaching OEM components. The radiator is finished with a "Show-Stopper™ mirror finish" hand polish and comes with a 2-year warranty.
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Part #: 2862
CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your NA Miata running at its best, a CSF High-Performance All-Aluminum Radiator is the obvious choice. Designed to perform on the street or at the track, a performance radiator is a must-have for both high horsepower builds as well as race vehicles which need added cooling performance in motorsports environments. This radiator features a 2-Row core with CSF's exclusive B-Tube Technology: Unlike a regular oval shape "O" type radiator tube, CSF uses a specially engineered tube in the shape of a "B". These "B-tubes" are carefully formed and then brazed over the seam to seal. CSF is able to use thinner and lighter aluminum material (with better cooling efficiency) because this design is actually stronger than normal "O" shape tubes that are welded. The design (inlet in the middle of the tube that is seam brazed) increases the heat transfer surface area of the tubes by approximately 15% over regular tubes - producing the efficiency of two smaller tubes vs. one large tube within the same space criteria. With "B-tubes" you are able to get "dual liquid laminar flow". CSF also uses ultra efficient multi louvered fins that are carefully and precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application, and tested for maximum heat rejection efficiency in our wind-tunnel lab.
Features:
- 2-Row 42mm Core (Dual Core) Featuring CSF's Exclusive B-Tube Technology
- Core Features an Ultra-Efficient Fin with 6.5mm Fin Height and Multi-Louvered Design for Maximum Surface Area Contact
- CNC Machined "Quick-Connect" Inlet/Outlet Connections
- CNC Machined Brackets and Fittings for Superb Fit and Durability
- All-Aluminum Race Style Drain Plug
- 1-Hour "Mirror Finish" Hand Polish
- Drop-in Fit
CSF manufactures the most advanced and efficient radiator in the industry for your NA Miata. CSF uses innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation.
Vehicle Symptoms
- Engine oil temperature exceeds 260°F during track sessions
- Oil temperature warning light illuminates on hot days
- Engine power drops after prolonged hard driving
- Oil pressure fluctuates when oil is hot
- Oil cooler lines leaking or damaged after track use
Relevant Conversations
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Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | CSF |
| Part Number | C00B 2862 |
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Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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