How to check and replace a thermostat in a cooling system issue on Ford Explorer Sport Trac?

Before attributing a cooling system issue to the thermostat, check coolant level, drivebelt tension, and temperature gauge or light. If engine has prolonged warm-up times, replace thermostat. For engine overheating, assess upper radiator hose temperature. Cool hose suggests stuck-closed thermostat, hot hose suggests open thermostat. To replace, disconnect battery cable, remove air duct, drain cooling system. Locate thermostat housing, loosen hose clamp, detach hose. Remove housing cover, extract old thermostat, clean surfaces, install new thermostat with proper orientation. Reassemble, refill cooling system, start engine to check for leaks and verify thermostat functionality.

Genuine Ford Explorer Sport Trac Thermostat

Engine Coolant Thermostat

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5 Thermostats found

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Ford Explorer Sport Trac Thermostat Assembly
Part Number: 7L3Z-8575-B
$21.78 MSRP: $30.91
You Save: $9.13 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Assy
- Replaced by: 7L3Z-8575-E
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2010 Ford Explorer Sport Trac | 8 Cyl 4.6L | 5-Speed Automatic Transmission 5R55S, 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Explorer Sport Trac Thermostat Assembly
Part Number: 3L3Z-8575-AC
$21.78 MSRP: $30.91
You Save: $9.13 (30%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Assy
- Replaced by: 7L3Z-8575-E
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2008 Ford Explorer Sport Trac | 8 Cyl 4.6L | 5-Speed Automatic Transmission 5R55S, 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
View related parts
Ford Explorer Sport Trac Thermostat Assembly
Part Number: 2L2Z-8575-AA
$19.38 MSRP: $30.91
You Save: $11.53 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat Assy; Thermostat
- Replaces: 1L2Z-8575-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2007-2010 Ford Explorer Sport Trac | 6 Cyl 4.0L SOHC EFI | 5-Speed Automatic Transmission 5R55S, 6-Speed Automatic Transmission (6R80), 6-Speed Automatic Transmission 6R60, Four-Wheel Drive (Full Time) (Left Hand Drive), Four-Wheel Drive (Part Time) (Left Hand Drive), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
- 2001-2005 Ford Explorer Sport Trac | 6 Cyl 4.0L SOHC EFI | 5-Speed Automatic Transmission - 5R44E/5R55E, 5-Speed Manual Transmission - R1HD, Four-Wheel Drive, Left Hand Drive, Two-Wheel Drive
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Ford Explorer Sport Trac Thermostat Assembly
Part Number: YU3Z-8575-AA
$32.03 MSRP: $51.09
You Save: $19.06 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat Assy; Thermostat
- Replaces: F7TZ-8575-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001 Ford Explorer Sport Trac | 6 Cyl 4.0L SOHC EFI | 5-Speed Automatic Transmission - 5R44E/5R55E, 5-Speed Manual Transmission - R1HD, Four-Wheel Drive, Left Hand Drive, Two-Wheel Drive
View related parts
Ford Explorer Sport Trac Thermostat Assembly
Part Number: 1L2Z-8575-AA
$19.38 MSRP: $30.91
You Save: $11.53 (38%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Thermostat Assy
- Replaced by: 2L2Z-8575-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2001-2002 Ford Explorer Sport Trac | 6 Cyl 4.0L SOHC EFI | 5-Speed Automatic Transmission - 5R44E/5R55E, 5-Speed Manual Transmission - R1HD, Four-Wheel Drive, Left Hand Drive, Two-Wheel Drive

Ford Explorer Sport Trac Thermostat Parts Questions & Experts Answers

Thermostat Assembly
1L2Z-8575-AA
Q: How to check and replace a thermostat in a cooling system issue on Ford Explorer Sport Trac?
A: Before attributing a cooling system issue to the thermostat, check coolant level, drivebelt tension, and temperature gauge or light. If engine has prolonged warm-up times, replace thermostat. For engine overheating, assess upper radiator hose temperature. Cool hose suggests stuck-closed thermostat, hot hose suggests open thermostat. To replace, disconnect battery cable, remove air duct, drain cooling system. Locate thermostat housing, loosen hose clamp, detach hose. Remove housing cover, extract old thermostat, clean surfaces, install new thermostat with proper orientation. Reassemble, refill cooling system, start engine to check for leaks and verify thermostat functionality.