1993-1998 Toyota Supra Turbo NA MT Koyo 53mm Racing Radiator R1856

Item Specifics:
Brand: Koyo (Koyorad)
Part Number: R1856
Series: R-Series
Core Thickness: 53mm (2 1/16")
Core Depth: 2.086" | Core Height: 15.5" | Core Width: 29"
Weight: 17.5 lbs
Transmission: Manual Only
Fitment: 1993-1998 Toyota Supra (JZA80), NA and Turbo
Condition: New
Description:
This is the radiator that keeps a 2JZ honest — a genuine Koyo R-Series 53mm racing radiator, part R1856, built for the 1993-1998 Toyota Supra. Full aluminum construction, Nocolok-brazed core bonded to hand-crafted, heliarc-welded polished end tanks — this isn't a mass-stamped radiator, it's built the way a real cooling system should be.
That 53mm core means real capacity — up to double the coolant volume and as much as 35% more cooling performance over your tired factory radiator. Whether you're daily driving or putting laps down at the track, this is the reserve you want in the system when things get hot. True OE-spec mounting means it drops straight into your factory location, no cutting, no relocating, retains your stock fan shroud mounts — just a clean, direct bolt-in.
Important: this radiator is manual transmission only, and your factory radiator cap will NOT work with it — you'll need the Koyo SK-C13 cap (or equivalent) to complete the install. Don't skip this part, or you won't be running proper system pressure.
But this isn't just about a bigger core. It's about a 2JZ that stays in its happy zone when you're actually pushing it — the difference between a car you can drive hard and one you're babying around every hot lap. Whether you're building a serious track Supra or just want peace of mind on a spirited drive, this radiator does exactly that.
🚚 Fast shipping nationwide — orders ship next business day, typical arrival in 2-4 days
⭐ Local pickup available — Pico Rivera, CA showroom
📞 Questions on fitment or install? Call 562-366-4516 or Text 562-270-5361 — happy to help
Item Details:
Genuine Koyo R-Series 53mm aluminum racing radiator, part R1856
Full aluminum, Nocolok-brazed core, polished heliarc-welded end tanks
OE-spec mounting, direct bolt-in, no modification needed
Retains stock fan shroud and fan mounts
Manual transmission only — fits both NA and Turbo Supra
OEM radiator cap NOT compatible — requires Koyo SK-C13 cap or equivalent (sold separately)
Fits: 1993-1998 Toyota Supra (JZA80)
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Koyo SK-C13 radiator cap and electric fans sold separately unless otherwise noted. Complete cooling system flush recommended on install.
Tags:
Koyo, R1856, Supra radiator, JZA80, MKIV Supra, 2JZ cooling, aluminum racing radiator, 53mm core, Toyota Supra Turbo, manual transmission radiator