Performance Radiator for BMW E38 735i 735iL 740i 750i (1998-2001) 3.5L 4.4L 5.4L

High-Efficiency Performance Radiator for 1998-2001 BMW 7 Series

Upgrading to an all-aluminum performance radiator eliminates the infamous brittle plastic end tanks of the factory unit, ensuring optimal engine temperatures and cooling system reliability under heavy loads.

The Stock E38 Cooling Shortcoming

The factory BMW E38 cooling system, while adequate for daily commuting when new, relies heavily on a radiator featuring plastic end tanks crimped to an aluminum core. Over decades of thermal cycling, engine bay heat soak, and pressurized coolant expansion, this plastic becomes incredibly brittle. The OEM tanks are notorious for cracking at the upper radiator neck or seeping at the crimped seams, leading to sudden and catastrophic coolant loss. For large displacement V8 (M62) and V12 (M73) engines, this inefficiency directly contributes to dangerous heat soak, risking blown head gaskets and warped aluminum blocks.

The Engineering Solution

This performance replacement radiator addresses the inherent flaws of the stock unit by utilizing a 100% all-aluminum construction. The massive 40mm thick, dual-row core significantly increases coolant capacity and surface area, drastically improving heat dissipation and airflow dynamics across the fins. Instead of failure-prone plastic and rubber gaskets, the end tanks are entirely TIG-welded to the vacuum-brazed core, completely eliminating epoxy and mechanical crimps from the design. This heavy-duty metal construction easily handles elevated coolant pressures and provides a permanent fix to the E38's greatest Achilles' heel, maintaining stable engine temperatures even during aggressive driving or prolonged idling.

Technical Specifications

Compatibility

• ALPINA B10 (E39) 3.2 i | Engine: M60B30 (308S6K) | 191 kW / 256 HP | 9/1998 ->
• ALPINA B10 (E39) 3.3 i | Engine: M52B28 (286S7T) | 206 kW / 276 HP | 9/1998 ->
• ALPINA B12 (E38) 5.7 i V12 | Engine: M70B57 (5714KA) | 306 kW / 410 HP | 9/1998 ->
• ALPINA B12 (E38) 6.0 i V12 | Engine: M73B54 (5412AG) | 316 kW / 424 HP | 9/1998 ->
• ALPINA ROADSTER (Z8) 4.8 i | Engine: M73B48 (488S12) | 280 kW / 375 HP | 6/2000 ->
• BMW 5 Series E39 (95-) 535 i | Engine: M62B35 (358S1) / M62B35 (358S2) | 9/1998 ->
• BMW 5 Series E39 (95-) 540 i | Engine: M62B44 (448S1) / M62B44 (448S2) | 9/1998 ->
• BMW 5 Series E39 (95-) M 5 | Engine: S62B50 (508S1) | 7/1997 ->
• BMW 7 Series E38 (94-) 735 i | Engine: M62B35 (358S2) | 9/1998 ->
• BMW 7 Series E38 (94-) 735 iL | Engine: M62B35 (358S2) | 9/1998 ->
• BMW 7 Series E38 (94-) 740 i | Engine: M62B44 (448S1) / M62B44 (448S2) | 9/1998 ->
• BMW 7 Series E38 (94-) 740 iL | Engine: M62B44 (448S1) / M62B44 (448S2) | 9/1998 ->
• BMW 7 Series E38 (94-) 750 i | Engine: M73B54 (54122) | 9/1998 ->
• BMW 7 Series E38 (94-) 750 iL | Engine: M73B54 (54122) | 9/1998 ->
• BMW Z8 E52 (00-) 4.9 | Engine: S62B50 (508S1) | 6/2000 ->
• BMW Z8 E52 (00-) ALPINA V8 | Engine: S62B50 (508S1) | 6/2000 ->

The BMW Precision Caliber

Engineered specifically for Euro performance platforms, this radiator provides precise fitment with zero modifications needed to the core support. Protect your investment with a robust cooling system that meets and exceeds demanding autobahn-level thermal requirements.