How should one service the catalytic converter to ensure proper installation and avoid damage on 2005 Mercury Mountaineer?

Do not use oil/grease on isolators. Use new torque-prevailing fasteners and specified torques. Hoist and support exhaust, align tab/notch, remove clamps, muffler-to-cat hardware, crossmember and shields, then detach sensors. Clean flares, support converter, transfer sensors with anti-seize, replace stud nuts. Reassemble per torques, start engine, check/align for leaks.

OEM 2005 Mercury Mountaineer Catalytic Converter

Cat. Converter

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4 Catalytic Converters found

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2005 Mercury Mountaineer Catalytic Converter Part Number: 4L2Z-5F250-KA
Product Specifications
- Other Name: Converter Assembly; Exhaust Pipe; Converter & Pipe
- Manufacturer Note: TAR
- Replaces: 3L2Z-5F250-AA
- Base No.: 5F250
- Item Weight: 40.40 Pounds
- Item Dimensions: 66.3 x 38.2 x 12.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4L2Z-5F250-KA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
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Fits the following 2005 Mercury Mountaineer Submodels:
- Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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2005 Mercury Mountaineer Catalytic Converter Part Number: 2L2Z-5F250-EA
Product Specifications
- Other Name: Converter Assembly; Exhaust Pipe; Converter & Pipe
- Manufacturer Note: TEA
- Base No.: 5F250
- Item Dimensions: 17.3 x 14.3 x 9.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 2L2Z-5F250-EA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2005 Mercury Mountaineer Submodels:
- Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
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2005 Mercury Mountaineer Catalytic Converter Part Number: 4L2Z-5F250-GA
Product Specifications
- Other Name: Converter Assembly
- Manufacturer Note: OAF
- Base No.: 5F250
- Item Dimensions: 17.3 x 14.3 x 9.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4L2Z-5F250-GA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2005 Mercury Mountaineer Submodels:
- Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
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2005 Mercury Mountaineer Catalytic Converter Part Number: 4L2Z-5F250-FA
Product Specifications
- Other Name: Converter Assembly
- Manufacturer Note: SUP
- Base No.: 5F250
- Item Weight: 31.90 Pounds
- Item Dimensions: 18.0 x 14.4 x 9.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4L2Z-5F250-FA
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2005 Mercury Mountaineer Submodels:
- Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS

2005 Mercury Mountaineer Catalytic Converter

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

2005 Mercury Mountaineer Catalytic Converter Parts Q&A

Q: How should one service the catalytic converter to ensure proper installation and avoid damage on 2005 Mercury Mountaineer?
A: Do not use oil/grease on isolators. Use new torque-prevailing fasteners and specified torques. Hoist and support exhaust, align tab/notch, remove clamps, muffler-to-cat hardware, crossmember and shields, then detach sensors. Clean flares, support converter, transfer sensors with anti-seize, replace stud nuts. Reassemble per torques, start engine, check/align for leaks.