CSF Volkswagen 99-06 Golf / GTI / 99-06 Jetta / GLI High-Performance Radiator

CSF has over 5 decades of experience manufacturing radiators, so when it comes to keeping your engine cool and your Mk4 VW running at its best, a CSF High-Performance All-Aluminum Radiator is the obvious choice. Designed to perform on the street or at the track, a performance radiator is a must-have for both high-horsepower builds and race vehicles needing added cooling performance in demanding motorsport environments.

The 2-row, 42mm ultra high-performance core uses CSF's exclusive B-Tube technology. Rather than a regular oval "O"-shaped tube, a specially engineered "B"-shaped tube is carefully formed and brazed over the seam, increasing heat transfer surface area by approximately 15% over regular tubes while allowing for thinner, lighter aluminium construction that's actually stronger than a normal welded design. This delivers genuine dual liquid laminar flow, paired with 6.5mm tall multi-louvered fins for maximum surface area contact. 100% all-aluminium, TIG-welded construction throughout replaces the factory's more complex plastic housing system, and CSF's precise CNC-machined fittings and brackets make installation into that same complex housing genuinely straightforward. The kit includes a high-performance aluminium 1.4bar radiator pressure cap with an embossed CSF logo, a machined all-aluminium race-style drain plug, and every unit receives a one-hour hand-polished mirror finish before shipping.

Works with: Manual transmission Mk4 models only. True drop-in fit, accepts all OEM attaching components including quick-connect hoses, AC condenser, and mounting brackets, with no modifications necessary for installation.

Why Choose This Radiator

• CSF's exclusive B-Tube core technology, approximately 15% more heat transfer surface area than regular tubes
• CNC-machined fittings and brackets designed specifically for the Mk4's complex plastic housing system
• Includes high-performance 1.4bar pressure cap and machined all-aluminium race-style drain plug
• 100% all-aluminium, TIG-welded construction, a genuine upgrade over the factory design
• One-hour hand-polished mirror finish
• True drop-in fit, no modifications necessary for installation

Compatibility

• Volkswagen Golf (Mk4, 1999-2006, manual transmission)
• Volkswagen GTI (Mk4, 1999-2006, manual transmission)
• Volkswagen Jetta (Mk4, 1999-2006, manual transmission)
• Volkswagen GLI (Mk4, 1999-2006, manual transmission)

Note: manual transmission only. A separate CSF part number (#7026) covers the later 2006-2009 Golf/GTI alongside the same 1999-2006 Jetta/GLI range, confirm exact year and transmission type with your supplier before ordering.