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Audi VW Engine Coolant Thermostat CTI0004 – Rein

Audi VW Engine Coolant Thermostat CTI0004 – Rein

REIN AUTOMOTIVE
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SKU CTI0004
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$9.31 - $9.31
$9.31
$9.31 - $9.31
$9.31
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We show live inventory for in-stock items. Products may sell out due to high demand but are restocked regularly. Out-of-stock items can still be ordered and usually arrive within a few weeks.

The Rein Engine Coolant Thermostat (CTI0004) is a premium replacement part for Audi and Volkswagen vehicles, designed to regulate engine operating temperature for optimal performance and fuel economy. It fits a wide range of models from 1985 through 2006, including VW Golf, Jetta, Beetle, Passat, and Audi 4000. Built with high-quality materials, this thermostat meets or exceeds OEM specifications for reliable, long-lasting service.

Key Features & Benefits

  • OEM-Spec Construction: Ensures accurate opening and closing temperatures for efficient engine operation.
  • Direct Fit Replacement: No modifications needed; includes gasket for easy installation.
  • Durable Design: Resistant to corrosion and wear, providing consistent performance over time.
  • Wide Compatibility: Covers multiple engine types including 1.8L, 1.9L, 2.0L across various VW and Audi models.

Vehicle Fitment

Make Model Years Engine
Volkswagen Golf 1999–2006 1.9L4
Volkswagen Beetle 1998–2006 1.9L4
Volkswagen Passat 1990–1993 2.0L4
Volkswagen Passat 1995–1996 2.0L4
Volkswagen Passat 2004–2005 2.0L4
Volkswagen Jetta 1997–2005 1.9L4
Volkswagen Cabrio 1995–2002 2.0L4
Volkswagen Jetta 1990–1999 2.0L4
Volkswagen Golf 1990–1998 2.0L4
Volkswagen Passat 1996–1997 1.9L4
Volkswagen Fox 1987–1993 1.8L4
Volkswagen Cabriolet 1985–1993 1.8L4
Volkswagen Jetta 1985–1992 1.8L4
Volkswagen Jetta 1987 1.6L4
Volkswagen Jetta 1989–1992 1.6L4
Volkswagen Golf 1985–1992 1.8L4
Volkswagen Corrado 1990–1992 1.8L4
Volkswagen Scirocco 1985–1988 1.8L4
Audi 4000 1985–1987 1.8L4
Volkswagen Quantum 1985 1.8L4

Technical Specifications

Part Number CTI0004
Product Type Engine Coolant Thermostat
Brand Rein Automotive

Installation Notes

Drain coolant, remove thermostat housing, replace with new thermostat and gasket, then refill coolant. Professional installation recommended.

About Rein Automotive

Rein Automotive is a respected aftermarket brand specializing in cooling system components, known for quality control and OE-comparable performance.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 20 applications
MK4 Golf
Make Model Engine Years
No vehicles listed for this group.
MK3 Golf
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No vehicles listed for this group.
MK2 Golf
Make Model Engine Years
No vehicles listed for this group.
MK4 Jetta
Make Model Engine Years
No vehicles listed for this group.
MK3 Jetta
Make Model Engine Years
No vehicles listed for this group.
MK2 Jetta
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No vehicles listed for this group.
B5 Passat
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No vehicles listed for this group.
B4 Passat
Make Model Engine Years
No vehicles listed for this group.
B3 Passat
Make Model Engine Years
No vehicles listed for this group.
MK3 Cabrio
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No vehicles listed for this group.
MK1 Cabriolet
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No vehicles listed for this group.
Corrado
Make Model Engine Years
No vehicles listed for this group.
Scirocco
Make Model Engine Years
No vehicles listed for this group.
Beetle (New)
Make Model Engine Years
No vehicles listed for this group.
Fox
Make Model Engine Years
No vehicles listed for this group.
Audi 4000
Make Model Engine Years
No vehicles listed for this group.
Quantum
Make Model Engine Years
No vehicles listed for this group.