Details
Product Information
Mishimoto's performance aluminum radiator is a direct-fit upgrade for automatic-transmission BMW E46 non-M models (323i, 325i, 328i, 330i and Z4, 1999-2009), outlasting the weak stock plastic radiator. It uses a large two-row, 100 percent brazed aluminum core with polished end tanks for a 20 percent increase in coolant capacity, 18 percent more coolant surface area, and 41 percent more air surface area. The automatic version adds an auxiliary inlet port for the stock transmission cooler connection, and CNC inlets and outlets mate to the stock quick-disconnect hoses.
Specifications
| Type | Performance aluminum radiator (TIG-welded) |
| Material | Aluminum |
| Core | Two-row, 100% brazed aluminum |
| Transmission Cooler | Auxiliary inlet port for stock automatic transmission cooler |
| Inlet / Outlet | CNC-machined quick-disconnect |
| Finish | Polished end tanks |
| Fit | Direct fit, automatic transmission |
| Overall Length | 18.63 in |
| Overall Height | 27.75 in |
| Overall Width | 3.75 in |
| Core Length | 22.88 in |
| Core Height | 17.75 in |
| Core Thickness | 1.5 in |
| Inlet | 1.5 in |
| Outlet | 1.3 in |
| Rows | 2 |
| Coolant Capacity | 2.51 |
| Fluid Capacity | 2.51 gal |
| Drain Plug Thread | M12 x 1.5 |
| Chassis Codes | E46 |
| Part Number | MMRAD-E46-323A |
| Warranty | Mishimoto Lifetime Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2000 | BMW | 323Ci | Base |
| 1999-2000 | BMW | 323i | Base |
| 1999 | BMW | 323is | Base |
| 2001-2006 | BMW | 325Ci | Base |
| 2001-2005 | BMW | 325i | Base |
| 2001-2005 | BMW | 325xi | Base |
| 2000 | BMW | 328Ci | Base |
| 1999-2000 | BMW | 328i | Base |
| 1999 | BMW | 328is | Base |
| 2001-2006 | BMW | 330Ci | Base |
| 2001-2006 | BMW | 330i | Base |
| 2001-2005 | BMW | 330xi | Base |
| 2003-2005 | BMW | Z4 | 2.5i |
| 2003-2005 | BMW | Z4 | 3.0i |
| 2006-2008 | BMW | Z4 | Coupe 3.0si |
| 2006-2008 | BMW | Z4 | M Coupe |
| 2006-2008 | BMW | Z4 | M Roadster |
| 2006-2008 | BMW | Z4 | Roadster 3.0i |
| 2006-2008 | BMW | Z4 | Roadster 3.0si |
| 2009 | BMW | Z4 | sDrive30i |
| 2009 | BMW | Z4 | sDrive35i |
Which vehicles does this fit?
- It fits the BMW 323Ci 2000, BMW 323i 1999-2000, BMW 323is 1999, BMW 325Ci 2001-2006, BMW 325i 2001-2005, BMW 325xi 2001-2005 and 7 more models. The full year, make, model and submodel list is in the fitment table on this page.
Is there a warranty?
- Mishimoto Lifetime Warranty.
What is it made of?
- Aluminum.
Shipping
- In stock orders typically 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






