CSF 8032 Dual-Pass Oil Cooler for 2001-2006 BMW E46 M3 & 1995-2003 E39 M5/540i

Vehicle Fitment

• 2001-2006 BMW 3 Series E46 M3 (S54, RWD)
• 1995-2003 BMW 5 Series E39 M5/540i (V8/V8, RWD)

Features

• Dual-pass bar-and-plate design with 8 fin rows
• 445 cu in capacity - ~4x larger than OEM cooler
• All-aluminum TIG-welded core & end tanks
• Top/bottom dual-pass flow for max surface area & efficiency
• High-density multi-louvered fins for improved heat dissipation
• Includes AN-10 adapter fittings for S54 oil filter housing
• OEM bracket drop-in design - fits CSF #7058/#7064 radiators
• Individually tested for leaks, pressure, and durability

Specifications

• Material: All-aluminum bar-and-plate core, TIG-welded end tanks
• Dimensions: ~27 x 3 x 3 in (LxHxD) per BimmerWorld & tuning shops :contentReference[oaicite:10]{index=10}
• Cooling capacity: 445 cu in (~103 OEM → 445 upgrade)
• Flow: Dual-pass (top inlet/bottom outlet)
• Fin density: High (8 rows, multi-louvered)
• Connection: Fits OEM lines; includes -10 AN adapter
• Mounting: OEM bracket location; fits CSF race radiator mounts only
• Pressure rated and track-tested to ~235 °F oil temps vs ~260 °F OEM :contentReference[oaicite:11]{index=11}

Included Components

• 1x CSF 8032 dual-pass oil cooler
• 2x -10 AN adapter fittings

Product Description

The CSF 8032 oil cooler is a race-spec dual-pass, bar-and-plate design engineered with Rogue Engineering to provide superior oil temperature control in BMW E46 M3 (2001-2006) and E39 M5/540i (1995-2003) platforms. With ~445 cu in capacity - over four times stock - and high-density, multi-louvered fins, it drastically improves thermal performance during track, endurance, and spirited driving scenarios.

Its all-aluminum TIG-welded construction ensures robustness and leak resistance, while the top/bottom flow pattern maximizes heat transfer. The cooler bolts directly into existing CSF high-performance radiator brackets (#7058 or #7064), fitting perfectly with OEM fan shrouds. Two -10 AN adapters are included to connect to the factory oil filter housing or aftermarket lines.

Testing and real-world data confirm it keeps oil temps around ~235 °F under stress, compared to ~260 °F with OEM coolers, extending engine life and reducing thermal degradation :contentReference[oaicite:12]{index=12}. Ideal for track day enthusiasts, tuning builds, or high-heat environments, the CSF 8032 is the go-to oil cooler upgrade for performance BMW models.