All-aluminum, TIG-welded high-performance radiator for the R34 Nissan Skyline, finished in satin black. The 2-row, 42mm core increases coolant capacity and dissipation, using CSF's exclusive B-Tube technology with 75 cooling tubes to raise heat transfer roughly 15% over conventional oval welded tubes, paired with 6.5mm ultra-efficient multi-louvered fins for maximum surface area and airflow. It ships with a 1.4-bar high-pressure radiator cap, an M16 x 1.5 sensor port with pre-installed plug, a 1/8" NPT sensor port on the top tank, CNC-machined mounting pins, OEM-style inlet/outlet, and OE-location fan shroud mounting points.
Specifications
| Type | High-performance all-aluminum radiator, TIG-welded |
| Core | 2-row, 42mm; 75 cooling tubes; CSF B-Tube technology (~15% more heat transfer) |
| Fins | 6.5mm tall ultra-efficient multi-louvered |
| Radiator Cap | 1.4-bar high-pressure cap with CSF logo |
| Finish | Satin black |
| Included | M16 x 1.5 sensor port with plug, 1/8" NPT sensor port (top tank), CNC-machined mounting pins, OEM-style inlet/outlet, OE-location fan shroud mounts |
| Part Number | 7231B |
| Warranty | 2-year limited warranty |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
