How Should the Intake Valve and Exhaust Valve Be Inspected for Signs of Damage and Wear on Lincoln LS?

Examine the valve by looking for grooves or scoring on the stem's end, checking the valve face and edge for pits or scores, assessing the valve head for burning, erosion, warpage, and cracks, and evaluating the valve margin for signs of wear.

How Do Exhaust Valve and Intake Valve Stem-to-Guide Clearances Affect Service and Repair on Lincoln MKX?

The first step to service the valve is to examine valve stem diameter and clearance. The former must use a magnetic base to hold it and fit a Valve Guide Clearance Gauge to the stem, then a Dial Indicator Gauge. Note the reading following zeroing of the gauge which will be twice the valve stem-to-guide clearance.

OEM Lincoln Intake Valve

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17 Intake Valves found

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Lincoln Intake Valve Part Number: 3L3Z-6507-BA
$11.36 MSRP: $16.12
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Product Specifications
- Other Name: Valve - Inlet; Exhaust Valve; Valves
- Manufacturer Note: INSERT, VLV ST INTK
Fits the following Lincoln Models:
- Mark LT | 2006-2008 | Base | 8 Cyl 5.4 L GAS
- Navigator | 2005-2014 | Base, L, L Luxury, L Ultimate, Luxury, Ultimate | 8 Cyl 5.4 L FLEX, 8 Cyl 5.4 L GAS
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Lincoln Intake Valve Part Number: 1S7Z-6507-B
$17.19 MSRP: $24.38
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Product Specifications
- Other Name: Valve - Inlet
- Manufacturer Note: Intake
Fits the following Lincoln Models:
- Corsair | 2020-2023 | Base, Reserve | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
- MKC | 2015-2019 | Base, Black Label, Premiere, Reserve, Select | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
- MKT | 2013-2016 | Base | 4 Cyl 2.0 L GAS
- MKZ | 2013-2020 | Base, Black Label, Premiere, Reserve, Reserve I, Reserve II, Select | 4 Cyl 2.0 L GAS
- Nautilus | 2019-2023 | Base, Black Label, Reserve, Select | 4 Cyl 2.0 L GAS
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Lincoln Intake Valve Part Number: AA5Z-6507-A
$9.79 MSRP: $13.88
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Product Specifications
- Other Name: Valve - Inlet
Fits the following Lincoln Models:
- MKS | 2010-2016 | EcoBoost | 6 Cyl 3.5 L GAS
- MKT | 2010-2019 | Base, EcoBoost, Reserve | 6 Cyl 3.5 L GAS
- Navigator | 2015-2017 | Base, L, L Reserve, L Select, Reserve, Select | 6 Cyl 3.5 L GAS
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Lincoln Intake Valve Part Number: 9S4Z-6507-C
$14.36 MSRP: $20.90
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Product Specifications
- Other Name: Valve - Inlet
- Replaces: 1S7Z-6507-AA, 9S4Z-6507-A, 9S4Z-6507-B
Fits the following Lincoln Models:
- Corsair | 2021-2023 | Grand Touring | 4 Cyl 2.5 L PLUG-IN HYBRID EV-GAS (PHEV)
- MKZ | 2011-2020 | Black Label Hybrid, Hybrid, Premiere Hybrid, Reserve Hybrid, Reserve I Hybrid, Reserve II Hybrid, Select Hybrid | 4 Cyl 2.0 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV)
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Lincoln Intake Valve Part Number: 7T4Z-6507-B
$17.88 MSRP: $26.03
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Product Specifications
- Other Name: Valve - Inlet
Fits the following Lincoln Models:
- Continental | 2017-2020 | Base, Livery, Premiere, Select | 6 Cyl 3.7 L GAS
- MKS | 2009-2016 | Base | 6 Cyl 3.7 L GAS
- MKT | 2010-2019 | Base, Livery, Premiere | 6 Cyl 3.7 L GAS
- MKX | 2007-2018 | Base, Black Label, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
- MKZ | 2013-2016, 2007-2009 | Base, Black Label | 6 Cyl 3.5 L GAS, 6 Cyl 3.7 L GAS
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Lincoln Intake Valve Part Number: 7L8Z-6507-A
$27.96 MSRP: $40.70
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Product Specifications
- Other Name: Valve - Inlet
- Manufacturer Note: STD
- Replaces: F6DZ-6507-A
Fits the following Lincoln Models:
- Zephyr | 2006 | Base | 6 Cyl 3.0 L GAS
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Lincoln Intake Valve Part Number: XW4Z-6507-AA
$13.78 MSRP: $18.75
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Product Specifications
- Other Name: Valve - Inlet
Fits the following Lincoln Models:
- LS | 2000-2006 | Base, LSE, Sport, Ultimate | 8 Cyl 3.9 L GAS
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Lincoln Intake Valve Part Number: E3ZZ-6507-A
$13.78 MSRP: $18.75
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Product Specifications
- Other Name: Valve - Inlet; Exhaust Valve; Valves
Fits the following Lincoln Models:
- Continental | 1984-1985 | Base, Givenchy, Valentino | 8 Cyl 5.0 L GAS
- Mark VII | 1984-1992 | Base, Bill Blass, LSC, Versace | 8 Cyl 5.0 L GAS
- Town Car | 1984-1985 | Base, Cartier, Signature | 8 Cyl 5.0 L GAS
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Lincoln Intake Valve Part Number: JT4Z-6507-B
$11.96 MSRP: $16.96
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Product Specifications
- Other Name: Valve - Inlet
- Replaced by: JT4Z-6507-C
Fits the following Lincoln Models:
- Aviator | 2020-2023 | Base, Black Label, Black Label Grand Touring, Grand Touring, Livery, Reserve | 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L PLUG-IN HYBRID EV-GAS (PHEV)
- Continental | 2017-2020 | 80th Anniversary Coach Door Edition, Black Label, Coach Door Edition, Reserve, Select | 6 Cyl 2.7 L GAS, 6 Cyl 3.0 L GAS
- MKX | 2016-2018 | Black Label, Premiere, Reserve, Select | 6 Cyl 2.7 L GAS
- MKZ | 2017-2020 | Black Label, Reserve, Reserve II, Select | 6 Cyl 3.0 L GAS
- Nautilus | 2019-2023 | Black Label, Reserve, Select | 6 Cyl 2.7 L GAS
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Lincoln Intake Valve Part Number: F3LY-6507-A
$29.77 MSRP: $43.33
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Product Specifications
- Other Name: Valve - Inlet; Exhaust Valve; Valves
Fits the following Lincoln Models:
- Aviator | 2003-2005 | Base | 8 Cyl 4.6 L GAS
- Blackwood | 2002 | Base | 8 Cyl 5.4 L GAS
- Continental | 1995-2002 | Anniversary, Base, Diamond Anniversary, Signature, Spinnaker Edition | 8 Cyl 4.6 L GAS
- Navigator | 2000-2004 | Base | 8 Cyl 5.4 L GAS
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Lincoln Intake Valve Part Number: EK4Z-6507-A
$17.88 MSRP: $26.03
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Product Specifications
- Other Name: Valve - Inlet
- Replaced by: 7T4Z-6507-B
Fits the following Lincoln Models:
- MKT | 2016-2019 | Base, Livery, Premiere | 6 Cyl 3.7 L GAS
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Lincoln Intake Valve Part Number: XL3Z-6507-AA
$65.28 MSRP: $100.47
You Save: $35.19 (36%)
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Product Specifications
- Other Name: Valve - Inlet; Exhaust Valve; Valves
Fits the following Lincoln Models:
- Town Car | 2003-2011 | Cartier, Cartier L, Designer Series, Executive, Executive L, Executive Protection Series, Protection Series, Signature, Signature L, Signature Limited, Ultimate, Ultimate L | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
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Lincoln Intake Valve Part Number: HL3Z-6507-C
$16.22 MSRP: $23.10
You Save: $6.88 (30%)
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Product Specifications
- Other Name: Valve - Inlet
- Replaces: HL3Z-6507-B, HL3Z-6507-A
Fits the following Lincoln Models:
- Navigator | 2018-2023 | Base, Black Label, L Base, L Black Label, L Livery, L Reserve, L Select, Premiere, Reserve, Select | 6 Cyl 3.5 L GAS
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Lincoln Intake Valve Part Number: XW4Z-6507-BA
Product Specifications
- Other Name: Valve - Inlet
Fits the following Lincoln Models:
- LS | 2000-2001 | Base, LSE | 6 Cyl 3.0 L GAS
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Lincoln Intake Valve Part Number: F5AZ-6507-A
Product Specifications
- Other Name: Valve - Inlet; Exhaust Valve; Valves
Fits the following Lincoln Models:
- Navigator | 1998-1999 | Base | 8 Cyl 5.4 L GAS
- Town Car | 1992-2002 | Anniversary, Base, Cartier, Cartier L, Cypress, Executive, Executive L, Jack Nicklaus, Signature, Touring Edition, Tournament Edition | 8 Cyl 4.6 L GAS
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Lincoln Intake Valve Part Number: E7AZ6507A
Product Specifications
- Other Name: Valve - Inlet; Exhaust Valve; Valves
Fits the following Lincoln Models:
- Continental | 1986-1987 | Base, Givenchy | 8 Cyl 5.0 L GAS
- Town Car | 1986-1990 | Base, Cartier, Cypress, Executive, Signature, Signature SE, Touring Edition | 8 Cyl 5.0 L GAS
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Lincoln Intake Valve Part Number: 1W4Z-6507-AA
Product Specifications
- Other Name: Valve - Inlet
Fits the following Lincoln Models:
- LS | 2001-2005 | Appearance, Base, LSE, Luxury, Premium | 6 Cyl 3.0 L GAS

Lincoln Intake Valve Parts and Q&A

Intake Valve
XW4Z-6507-AA
Q: How Should the Intake Valve and Exhaust Valve Be Inspected for Signs of Damage and Wear on Lincoln LS?
A: Examine the valve by looking for grooves or scoring on the stem's end, checking the valve face and edge for pits or scores, assessing the valve head for burning, erosion, warpage, and cracks, and evaluating the valve margin for signs of wear.
Intake Valve
7T4Z-6507-B
Q: How Do Exhaust Valve and Intake Valve Stem-to-Guide Clearances Affect Service and Repair on Lincoln MKX?
A: The first step to service the valve is to examine valve stem diameter and clearance. The former must use a magnetic base to hold it and fit a Valve Guide Clearance Gauge to the stem, then a Dial Indicator Gauge. Note the reading following zeroing of the gauge which will be twice the valve stem-to-guide clearance.