Koyorad Aluminium Radiator for Alpina B3 & B4 F30 & F31 (13-19)
Koyo Performance Aluminium Radiator
- TIG welded by hand, 100% made in Japan
- Aluminium performance radiator
- To suit : Alpina B3 & B4 F30 & F31 (13-19)
- Engine code(s) : N55B30
- Size : 535x426x53 or 535x430x36 mm
- Direct fitment, no modification
- Replaces OEM part number(s) : 17112284608, CSF8075
- Koyorad part no. : KL423704, KV423704
- Ideal for both daily and track use
Ask a question about this productTechnical Diagrams
Koyorad Aluminium Radiator for Alpina B3 & B4 (36 mm)
Koyorad XL Aluminium Radiator for Alpina B3 & B4 (53 mm)
Koyorad Aluminium Radiator for Alpina B3 & B4 F30 & F31 (13-19) Description
Ideal for use both on and off the track, this Koyo Performance aluminium radiator will considerably improve your engine cooling. Made from aviation grade aluminium, TIG welded and with a high quality, polished finish, it goes directly in place of your existing radiator without any modification : using the same mounting brackets, stock fans and/or shrouds, sensors, drain plugs, etc.
N-Flo Technology
Koyo offer their innovative N-Flo technology, fitting their radiators with "N" shaped internal partitions. This exclusive design allows the coolant to flow through the radiator for longer, and ensures effective cooling across the whole surface (unlike standard radiators, where the coolant usually flows diagonally). N-Flo technology, combined with the high thermal conductivity of the aluminium, guarantees up to 50% better cooling efficiency than stock, lower operating temperatures and improved engine reliability.
The photo here is a generic visual provided by the manufacturer. The diagram above represents the actual product for your vehicle.
Characteristics
| Car Make | Alpina |
|---|---|
| Car Model | BMW Alpina B3 / B4 |
| Engine Code | N55B30 |
