Radiator for Porsche 944 (1986-1991) 2.5L 3.0L

High-Efficiency All-Aluminum Radiator for 1986-1991 Porsche 944

What it Does: The high-efficiency all-aluminum radiator replaces the aging factory cooling unit on the 1986-1991 Porsche 944 to eliminate thermal degradation, prevent catastrophic coolant leaks, and optimize heat rejection under aggressive driving.

The Stock Porsche 944 Thermal Weakness

The original equipment radiator fitted to the Type 951 (Turbo) and Type 944 S2 chassis relies on aging composite plastic end tanks crimped onto an aluminum core. Over decades of heat cycling and high cooling system pressurization, these factory plastic tanks embrittle, leading to micro-fractures, seam separation, and sudden catastrophic coolant loss. Furthermore, the single-row factory core easily falls victim to internal scale buildup and external fin degradation, crippling thermal conductivity and causing rapid coolant temperature spikes under sustained boost or track conditions.

The Engineering Solution

This dual-row performance radiator is engineered from 100% brazed aluminum to restore and elevate thermal capacity. Featuring precision TIG-welded end tanks and a robust 40 mm brazed crossflow core (500 x 368 mm), it maximizes heat transfer surface area while eliminating failure-prone elastomer gaskets and crimped plastic seams. With heavy-duty mounting rails, integrated sensor ports, a dedicated drain fitting, and standard 1.5-inch inlet/outlet connections, it drops directly into the factory location without chassis modifications, delivering sustained heat dissipation against high-load heat soak.

Technical Specifications

Compatibility

• 1986-1991 Porsche 944 Turbo 2.5L Manual Transmission
• 1989-1991 Porsche 944 S2 3.0L Manual Transmission

Frequently Asked Questions

Does this fit the Type 951 944?
Yes, this is a direct fit for the 1986-1991 Porsche 944 equipped with the M44.51/52 and M44.41 engines paired with a manual transmission.

Can this radiator be used with an automatic transmission?
No, this unit is engineered exclusively for manual transmission layouts and does not integrate internal automatic transmission fluid cooling loops.

The Porsche Precision Standard

Transaxle Porsches demand uncompromised thermal stability to protect high-strung inline-four engines from head gasket failures and cylinder distortion. Engineered to exacting tolerances, this drop-in cooling upgrade ensures leak-free operation, factory-level sensor accommodation, and track-ready cooling performance without check-engine lights or fitment rework.