How to Address Issues with the Cruise Control Servo in a Mercury Grand Marquis?

When servicing the cruise control servo, two things to begin with are to disconnect the electrical connector and remove the speed control actuator cable. Unscrew the bolts to remove the servo and the bracket; and unscrew the screws to remove the bracket. Installation and removal are just the reverse process.

How to service and repair the cruise control servo on Mercury Cougar?

In order to fix the cruise control servo, disconnect the speed control cable to the engine cover and throttle body, unscrew the electrical connector of the actuator, unscrew the bolt connecting the actuator. Take off the cable cap and the cable out of the actuator pulley. To install undo uninstall steps.

OEM Mercury Cruise Control Servo

Cruise Control Servo Speed

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13 Cruise Control Servos found

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Mercury Cruise Servo Part Number: 6L8Z-9C735-BA
$410.29 MSRP: $567.60
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Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Servo
- Replaces: 5L8Z-9C735-BB
Fits the following Mercury Models:
- Mariner | 2005-2008 | Base, Luxury, Premier | 6 Cyl 3.0 L GAS
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Mercury Cruise Servo Part Number: XL2Z-9C735-AA
$184.41 MSRP: $534.75
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Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Amplifier; Servo
- Replaces: F87Z-9C735-EA, F87Z-9C735-AB, F87Z-9C735-DC
Fits the following Mercury Models:
- Mountaineer | 1998-2001 | Base | 6 Cyl 4.0 L GAS
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Mercury Cruise Servo Part Number: F87Z-9C735-FA
$311.16 MSRP: $456.92
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Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Amplifier; Servo
- Manufacturer Note: Electronic servo
- Replaces: F77Z-9C735-BA
Fits the following Mercury Models:
- Mountaineer | 1997-1998 | Base | 8 Cyl 5.0 L GAS
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Mercury Servo Assembly Part Number: YF1Z-9C735-BA
$115.82 MSRP: $160.23
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Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Module; Cruise Control Servo; Cruise Servo
- Manufacturer Note: Servo asy , speed control , w/ speed control
Fits the following Mercury Models:
- Sable | 2000-2005 | GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
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Mercury Cruise Servo Part Number: 6L8Z-9C735-AA
$307.53 MSRP: $425.44
You Save: $117.91 (28%)
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Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Servo
- Replaces: 5L8Z-9C735-AB
Fits the following Mercury Models:
- Mariner | 2005-2008 | Base, Convenience | 4 Cyl 2.3 L GAS
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Mercury Cruise Servo Part Number: 6F2Z-9C735-AA
$204.89 MSRP: $283.44
You Save: $78.55 (28%)
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Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Servo
- Replaces: 4F2Z-9C735-AA
Fits the following Mercury Models:
- Monterey | 2004-2007 | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
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Mercury Servo Assembly Part Number: XW4Z-9C735-AA
$99.35 MSRP: $135.19
You Save: $35.84 (27%)
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Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Cruise Servo; Servo
Fits the following Mercury Models:
- Mountaineer | 2002-2005 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 4.6 L GAS
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Mercury Cruise Servo Part Number: XS8Z-9C735-AA
Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Servo
- Manufacturer Note: Electronic servo
Fits the following Mercury Models:
- Cougar | 1999-2002 | Base, V6 | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- Mystique | 1995-2000 | Base, GS, GS Spree, LS, LS Young America | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mercury Cruise Servo Part Number: XS4Z-9C735-AA
Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Servo
- Manufacturer Note: Electronic servo , 2dr,coupe,DOHC
Fits the following Mercury Models:
- Tracer | 1997-1999 | GS, LS, Trio | 4 Cyl 2.0 L GAS
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Mercury Cruise Servo Part Number: E6AZ-9C735-A
Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Servo
Fits the following Mercury Models:
- Colony Park | 1987 | GS, LS | 8 Cyl 5.0 L GAS
- Grand Marquis | 1986-1987 | Base, Colony Park, GS, LS | 8 Cyl 5.0 L GAS, 8 Cyl 5.8 L GAS
- Lynx | 1986-1987 | Base, GS, L, XR3 | 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L DIESEL
- Marquis | 1986 | Base, Brougham | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS
- Tracer | 1992-1996 | Base, LTS, Trio | 4 Cyl 1.8 L GAS, 4 Cyl 1.9 L GAS
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Mercury Cruise Servo Part Number: 3W7Z-9C735-AA
Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Servo
Fits the following Mercury Models:
- Grand Marquis | 2003-2007 | GS, GSL, Limited Edition, LS, LSE, Ultimate Edition | 8 Cyl 4.6 L FLEX, 8 Cyl 4.6 L GAS
- Marauder | 2003-2004 | Base | 8 Cyl 4.6 L GAS
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Mercury Cruise Servo Part Number: 1S8Z9C735AA
Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Servo
Fits the following Mercury Models:
- Cougar | 2001-2002 | Base, S, V6 | 6 Cyl 2.5 L GAS
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Mercury Cruise Servo Part Number: XW7Z-9C735-AA
Product Specifications
- Other Name: Servo Assembly - Speed Control; Cruise Control Servo; Servo
Fits the following Mercury Models:
- Cougar | 1994-1997 | XR-7
- Grand Marquis | 1995-2002 | GS, LS | 8 Cyl 4.6 L GAS

Mercury Cruise Control Servo Parts and Q&A

Cruise Servo
XW7Z-9C735-AA
Q: How to Address Issues with the Cruise Control Servo in a Mercury Grand Marquis?
A: When servicing the cruise control servo, two things to begin with are to disconnect the electrical connector and remove the speed control actuator cable. Unscrew the bolts to remove the servo and the bracket; and unscrew the screws to remove the bracket. Installation and removal are just the reverse process.
Cruise Servo
XS8Z-9C735-AA
Q: How to service and repair the cruise control servo on Mercury Cougar?
A: In order to fix the cruise control servo, disconnect the speed control cable to the engine cover and throttle body, unscrew the electrical connector of the actuator, unscrew the bolt connecting the actuator. Take off the cable cap and the cable out of the actuator pulley. To install undo uninstall steps.