How to service and repair the thermostat for 5.4L and 6.8L engines on 2005 Ford F-250 Super Duty?

The procedure for thermostat service and repair on engines with 5.4L or 6.8L capacity starts with draining the cooling system. The service process begins with outlet pipe removal from the air cleaner followed by separation of the thermostat housing bolts and thermostat unit while disposing the O-ring seal. The mating areas need to be inspected then cleaned using metal surface prep techniques. Insert the new O-ring seal by dual-conducting clean engine coolant onto its surface then installing it. The reinstallation process should include tightening the bolts to 10 Nm (89 inch lbs.) while reversing the disassembly steps.

OEM 2005 Ford F-250 Super Duty Thermostat

Engine Coolant Thermostat

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3 Thermostats found

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2005 Ford F-250 Super Duty Thermostat
Part Number: 7L3Z-8575-E
$20.68 MSRP: $32.00
You Save: $11.32 (36%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat; Thermostat, Coolant
- Replaces: 7L3Z-8575-D, 7L3Z-8575-B, AL3Z-8575-B, RT-1196, RT-1230, 3L3Z-8575-AA, 3L3Z-8575-AC, 7L3Z-8575-C, AL3Z-8575-A, RT-1204, RT-1234, RT-1178, RT-1229, RT-1165
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 7L3Z-8575-E
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following 2005 Ford F-250 Super Duty Submodels:
- Cabela's, FX4, Harley-Davidson Edition, King Ranch, Lariat, Platinum, XL, XLT | 10 Cyl 6.8 L GAS, 8 Cyl 5.4 L GAS, 8 Cyl 6.2 L FLEX
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2005 Ford F-250 Super Duty Thermostat
Part Number: 7C3Z-8575-B
$12.40 MSRP: $20.00
You Save: $7.60 (38%)
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Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat
- Manufacturer Note: THERMOSTAT, WTR
- Replaces: YC2Z-8575-BC
- Base No.: 8575
- Item Weight: 0.50 Pounds
- Item Dimensions: 3.3 x 2.6 x 3.5 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 7C3Z-8575-B
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
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Fits the following 2005 Ford F-250 Super Duty Submodels:
- Cabela's, FX4, Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 10 Cyl 6.8 L GAS
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2005 Ford F-250 Super Duty Thermostat Housing
Part Number: 3C3Z-8575-AA
$40.08 MSRP: $63.64
You Save: $23.56 (38%)
Ships in 1 Business Day
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Product Specifications
- Other Name: Thermostat Assembly; Engine Coolant Thermostat; Thermostat Housing Cover; Thermostat
- Manufacturer Note: Themostat and connector asy - #3C34 8575-AA - (Navistar ID 1839304C91) - includes gasket
- Base No.: 8575
- Item Weight: 1.60 Pounds
- Item Dimensions: 8.4 x 7.7 x 7.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 3C3Z-8575-AA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2005 Ford F-250 Super Duty Submodels:
- Harley-Davidson Edition, King Ranch, Lariat, XL, XLT | 8 Cyl 6.0 L DIESEL

2005 Ford F-250 Super Duty Thermostat

If you're seeking quality and affordability, look no further than our extensive inventory of genuine 2005 Ford F-250 Super Duty Thermostat available at FordPartsDeal.com. You can confidently purchase our OEM 2005 Ford F-250 Super Duty Thermostat as they are supported by the manufacturer's warranty and our hassle-free return policy, alongside the benefit of our fast delivery service.

2005 Ford F-250 Super Duty Thermostat Parts Questions & Experts Answers

Q: How to service and repair the thermostat for 5.4L and 6.8L engines on 2005 Ford F-250 Super Duty?
A: The procedure for thermostat service and repair on engines with 5.4L or 6.8L capacity starts with draining the cooling system. The service process begins with outlet pipe removal from the air cleaner followed by separation of the thermostat housing bolts and thermostat unit while disposing the O-ring seal. The mating areas need to be inspected then cleaned using metal surface prep techniques. Insert the new O-ring seal by dual-conducting clean engine coolant onto its surface then installing it. The reinstallation process should include tightening the bolts to 10 Nm (89 inch lbs.) while reversing the disassembly steps.