How to service the rear crankshaft seal with retainer plate on Mercury Grand Marquis?

The first step to work on the crankshaft rear seal with retainer plate requires depowering the fire suppression system to avoid personal injury. Install the vehicle onto a hoist in NEUTRAL position for removing the flexplate followed by the engine-to-transmission spacer plate. First use the Crankshaft Rear Oil Slinger Remover with Slide Hammer to remove the crankshaft oil slinger before using the same tool to extract the crankshaft rear seal. Place the Engine Lifting Bracket onto both RH and LH cylinder heads by removing the two engine mount nuts then feed the Engine Support Bar for lifting the engine. The drain plug needs installation followed by 23 Nm (17 lb-ft) of torque tightness. You should begin by detaching both pin-type wire harness retainers then remove the oil pan bolts in a specific order and finally lower the oil pan partially. Install the oil pump screen together with the pickup tube through the oil pan while disposing of both O-ring seal and gasket. The six bolts fastening the crankcase rear seal retainer plate need removal. A plastic scraping tool should be used to clean the sealing surfaces before applying gasket maker to the rear crankshaft seal retainer mating surface on the engine block. Lay the six crankcase rear seal retainer plate bolts initially but tighten them to 10 Nm (89 lb-in) using the specified sequence. Use the Crankshaft Rear Oil Seal Installers to put in the crankshaft rear seal that was treated with engine oil on its inner ring. Install the crankshaft oil slinger with the assistance of Crankshaft Rear Oil Slinger Installer. Install a new O-ring seal on the oil pan mating surface after cleaning before you position the oil pump screen with pickup tube into the oil pan. Use clean engine oil to lubricate this new O-ring seal. Apply clean engine oil to the new O-ring on the oil pan. Torque the oil pump screen attachment bolts to 10 Nm (89 lb-in) and the pump screen attachment bolt to the spacer at 25 Nm (18 lb-ft). After preparing the surfaces by applying silicone gasket and sealant on the rear seal retainer-to-cylinder block and engine front cover-to-cylinder block join points, allow the sealant to bond properly for four minutes to stop any leakage. The installation of oil pan bolts should begin with a initial torque to 20 Nm (177 lb-in) followed by an additional 60 degrees of rotation. Return the two wire harness retainers using pins and guide the engine mount studs before lowering the engine. Fasten the two engine mount nuts to 90 Nm (66 lb-ft) before reinstalling the engine-to-transmission spacer plate as well as the flexplate. Add clean engine oil to the unit while you start the motor for leak assessment. Proper repowering of a vehicle with a fire suppression system requires compliance with essential safety protocols.

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19 Crankshaft Seals found

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Mercury Rear Main Seal Retainer
Part Number: CG1Z-6335-B
$47.18 MSRP: $67.50
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Product Specifications
- Other Name: Retainer - Crankshaft Oil Seal
- Replaces: 7T4Z-6K301-A, AT4Z-6K301-B, CG1Z-6K301-A
Fits the following Mercury Models:
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury Rear Main Seal
Part Number: 1S7Z-6A321-B
$59.56 MSRP: $86.70
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Crankshaft Seal; Rear Seal; Rear Main Seal Retainer
- Position: Rear
- Replaces: 1S7Z-6D309-AA, 1S7Z-6K301-AA, 1S7Z-6K301-BA
Fits the following Mercury Models:
- Mariner | 2005-2011 | Base, Convenience, Hybrid, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
- Milan | 2006-2011 | Base, Hybrid, Premier | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mercury Oil Seal, Front
Part Number: XW4Z-6700-AA
$10.89 MSRP: $15.45
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil - Front; Engine Crankshaft Seal, Front; Timing Cover Gasket; Timing Cover Seal; Crankshaft Seal; Front Crank Seal; Timing Cover Oil Seal; Engine Crankshaft Seal
- Position: Front
- Replaces: XW4Z-6700-A
Fits the following Mercury Models:
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury Rear Main Seal
Part Number: F5TZ-6701-A
$31.53 MSRP: $44.72
You Save: $13.19 (30%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Crankshaft Seal; Rear Seal; Oil Pan Rear Seal; Engine Crankshaft Seal
- Position: Rear
- Replaces: F77Z-6701-AA, D7RZ-6701-A, F77Z-6701-BA
Fits the following Mercury Models:
- Mountaineer | 1998-2010 | Base, Convenience, Luxury, Premier | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
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Mercury Rear Main Seal Retainer
Part Number: F5RZ-6K318-A
$35.75 MSRP: $51.15
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Product Specifications
- Other Name: Retainer - Crankshaft Oil Seal; Crankshaft Seal Retainer
- Manufacturer Note: INCL. 6701 SEAL
Fits the following Mercury Models:
- Cougar | 1999-2002 | Base | 4 Cyl 2.0 L GAS
- Mystique | 1995-2000 | Base, GS, GS Spree, LS | 4 Cyl 2.0 L GAS
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Mercury Rear Main Seal
Part Number: F4AZ-6701-A
$28.61 MSRP: $41.65
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Timing Cover Gasket; Timing Cover Seal; Oil Seal; Crankshaft Seal; Rear Seal; Timing Cover Seal; Oil Pan Seal.
- Position: Rear
- Replaces: F3AZ-6701-B
Fits the following Mercury Models:
- Cougar | 1999-2002, 1994-1997 | Base, S, V6, XR-7 | 6 Cyl 2.5 L GAS, 8 Cyl 4.6 L GAS
- Grand Marquis | 1992-2011 | 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
- Mariner | 2005-2011 | Base, Luxury, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- Milan | 2006-2011 | Base, Premier | 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- Montego | 2005-2007 | Luxury, Premier | 6 Cyl 3.0 L GAS
- Mountaineer | 2002-2010 | Base, Convenience, Luxury, Premier | 8 Cyl 4.6 L GAS
- Mystique | 1995-2000 | Base, GS, GS Spree, LS, LS Young America | 6 Cyl 2.5 L GAS
- Sable | 1996-2005 | G, GS, LS, LS Premium, Platinum Edition | 6 Cyl 3.0 L GAS
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Mercury Rear Main Seal
Part Number: AT4Z-6701-A
$37.43 MSRP: $53.55
You Save: $16.12 (31%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Crankshaft Seal; Rear Seal; Engine Crankshaft Seal
- Position: Rear
- Replaces: 7T4Z-6701-AA
Fits the following Mercury Models:
- Sable | 2008-2009 | Base, Premier | 6 Cyl 3.5 L GAS
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Mercury Rear Main Seal Retainer
Part Number: 6C3Z-6K301-A
$45.47 MSRP: $66.18
You Save: $20.71 (32%)
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Product Specifications
- Other Name: Retainer - Crankshaft Oil Seal; Oil Pan Rear Seal
- Manufacturer Note: Gasket Is RTV. Refer To Workshop Manual For Proper Specs
- Replaces: 3L3Z-6K301-AA, 3L3Z-6K301-CA
Fits the following Mercury Models:
- Mountaineer | 2006-2008 | Luxury, Premier | 8 Cyl 4.6 L GAS
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Mercury Rear Main Seal
Part Number: F37Z-6701-A
$27.79 MSRP: $39.42
You Save: $11.63 (30%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Oil Pan Seal; Crankshaft Seal; Rear Seal; Oil Pan Rear Seal; Seal; Engine Crankshaft Seal
- Position: Rear
- Replaces: E8DZ-6701-A
Fits the following Mercury Models:
- Lynx | 1984-1987 | Base, GL, GS, L, LS, LTS, RS, XR3 | 4 Cyl 1.6 L GAS, 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L DIESEL
- Sable | 1986-2005 | G, GS, LS, LS Premium, LTS | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L FLEX, 6 Cyl 3.0 L GAS
- Topaz | 1984-1994 | Base, GS, GS AWD, LS, LS AWD, LTS, LTS AWD, Sport, Sport AWD, XR5, XR5 AWD | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mercury Rear Main Seal
Part Number: F1SZ-6701-A
$46.60 MSRP: $66.67
You Save: $20.07 (31%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Timing Cover Gasket; Timing Cover Seal; Oil Seal; Crankshaft Seal; Rear Seal; Timing Cover Oil Seal; Engine Crankshaft Seal
- Position: Rear
Fits the following Mercury Models:
- Cougar | 1989-1997 | LS, XR-7 | 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Monterey | 2004-2007 | Base, Convenience, Luxury, Premier | 6 Cyl 4.2 L GAS
- Mountaineer | 1997-2001 | Base | 6 Cyl 4.0 L GAS, 8 Cyl 5.0 L GAS
- Sable | 1992-1995, 1989 | GS, LS | 6 Cyl 3.8 L GAS
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Mercury Rear Main Seal
Part Number: 6L3Z-6K301-AA
$40.50 MSRP: $57.93
You Save: $17.43 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Retainer - Crankshaft Oil Seal; Crankshaft Seal; Rear Main Seal Retainer
- Replaces: 3L3Z-6K301-BA
Fits the following Mercury Models:
- Mountaineer | 2009-2010 | Premier | 8 Cyl 4.6 L GAS
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Mercury Rear Main Seal
Part Number: E5ZZ-6701-A
$15.53 MSRP: $21.14
You Save: $5.61 (27%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal; Crankshaft Seal
Fits the following Mercury Models:
- Capri | 1984-1986 | 5.0, GS, RS, RS Turbo | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Colony Park | 1987 | GS, LS | 8 Cyl 5.0 L GAS
- Cougar | 1990, 1984-1988 | Base, LS, XR-7 | 4 Cyl 2.3 L GAS, 6 Cyl 3.8 L GAS, 8 Cyl 5.0 L GAS
- Grand Marquis | 1984-1987 | Base, Colony Park, GS, LS | 8 Cyl 5.0 L GAS
- Marquis | 1984-1986 | Base, Brougham | 4 Cyl 2.3 L GAS, 4 Cyl 2.3 L LPG, 6 Cyl 3.8 L GAS
- Sable | 1990, 1988 | GS, LS | 6 Cyl 3.8 L GAS
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Mercury Oil Seal, Front
Part Number: CM5Z-6700-E
$8.94 MSRP: $12.68
You Save: $3.74 (30%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil - Front; Engine Crankshaft Seal; Timing Cover Gasket & Seal.; Front Crank Seal; Front Seal; Front Cover Seal; Timing Cover Front Seal
- Position: Front
- Replaces: 1S7Z-6700-AA, CM5Z-6700-C, 9E5Z-6700-A, CM5Z-6700-A
Fits the following Mercury Models:
- Mariner | 2005-2011 | Base, Convenience, Hybrid, Premier | 4 Cyl 2.3 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
- Milan | 2006-2011 | Base, Hybrid, Premier | 4 Cyl 2.3 L GAS, 4 Cyl 2.5 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 2.5 L GAS
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Mercury Rear Main Seal
Part Number: F3XY6701B
$19.01 MSRP: $25.87
You Save: $6.86 (27%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal; Crankshaft Seal
Fits the following Mercury Models:
- Villager | 1999-2002, 1993-1995 | Base, Estate, GS, LS, Nautica, Sport | 6 Cyl 3.0 L GAS, 6 Cyl 3.3 L GAS
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Mercury Fender Bracket, Driver Side
Part Number: F3LY16D157A
$27.60 MSRP: $37.56
You Save: $9.96 (27%)
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Product Specifications
- Other Name: Bracket Fender Mounting; Upper Rail Upper Bracket; Bracket - Fender Mounting
- Position: Driver Side
Fits the following Mercury Models:
- Cougar | 1989-1997 | LS, XR-7 | 6 Cyl 3.8 L GAS, 8 Cyl 4.6 L GAS, 8 Cyl 5.0 L GAS
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Mercury Rear Main Seal
Part Number: E7FZ-6701-A
$27.33 MSRP: $39.78
You Save: $12.45 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal, Rear; Rear Seal; Engine Crankshaft Seal; Crankshaft Seal
- Manufacturer Note: #E7EE-A1A-USED W/ ASY. #FOEE-6K301-AA
- Position: Rear
Fits the following Mercury Models:
- Lynx | 1984-1987 | Base, GL, GS, L, LS, LTS, RS, XR3 | 4 Cyl 1.6 L GAS, 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L DIESEL
- Tracer | 1991-1999 | Base, GS, LS, Trio | 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L GAS
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Mercury Rear Main Seal
Part Number: F5RZ-6701-A
$15.44 MSRP: $21.00
You Save: $5.56 (27%)
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Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal; Crankshaft Seal
- Manufacturer Note: Crankshaft Rear
Fits the following Mercury Models:
- Cougar | 1999-2002 | Base | 4 Cyl 2.0 L GAS
- Mystique | 1995-2000 | Base, GS, GS Spree, LS | 4 Cyl 2.0 L GAS
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Mercury Rear Main Seal
Part Number: XF5Z-6701-AA
Product Specifications
- Other Name: Seal Assembly - Crankshaft; Engine Crankshaft Seal; Crankshaft Seal; Seal Assembly - Crankshaft Oil
Fits the following Mercury Models:
- Villager | 1996-1998 | GS, LS, Nautica | 6 Cyl 3.0 L GAS
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Mercury Rear Main Seal
Part Number: F1CZ6701B
Product Specifications
- Other Name: Seal Assembly - Crankshaft Oil; Engine Crankshaft Seal; Timing Cover Gasket; Timing Cover Seal; Crankshaft Seal; Front Cover Seal
Fits the following Mercury Models:
- Capri | 1991-1994 | Base, XR2 | 4 Cyl 1.6 L GAS
- Tracer | 1991-1996 | LTS | 4 Cyl 1.8 L GAS

Mercury Crankshaft Seal Parts Questions & Experts Answers

Rear Main Seal
F4AZ-6701-A
Q: How to service the rear crankshaft seal with retainer plate on Mercury Grand Marquis?
A: The first step to work on the crankshaft rear seal with retainer plate requires depowering the fire suppression system to avoid personal injury. Install the vehicle onto a hoist in NEUTRAL position for removing the flexplate followed by the engine-to-transmission spacer plate. First use the Crankshaft Rear Oil Slinger Remover with Slide Hammer to remove the crankshaft oil slinger before using the same tool to extract the crankshaft rear seal. Place the Engine Lifting Bracket onto both RH and LH cylinder heads by removing the two engine mount nuts then feed the Engine Support Bar for lifting the engine. The drain plug needs installation followed by 23 Nm (17 lb-ft) of torque tightness. You should begin by detaching both pin-type wire harness retainers then remove the oil pan bolts in a specific order and finally lower the oil pan partially. Install the oil pump screen together with the pickup tube through the oil pan while disposing of both O-ring seal and gasket. The six bolts fastening the crankcase rear seal retainer plate need removal. A plastic scraping tool should be used to clean the sealing surfaces before applying gasket maker to the rear crankshaft seal retainer mating surface on the engine block. Lay the six crankcase rear seal retainer plate bolts initially but tighten them to 10 Nm (89 lb-in) using the specified sequence. Use the Crankshaft Rear Oil Seal Installers to put in the crankshaft rear seal that was treated with engine oil on its inner ring. Install the crankshaft oil slinger with the assistance of Crankshaft Rear Oil Slinger Installer. Install a new O-ring seal on the oil pan mating surface after cleaning before you position the oil pump screen with pickup tube into the oil pan. Use clean engine oil to lubricate this new O-ring seal. Apply clean engine oil to the new O-ring on the oil pan. Torque the oil pump screen attachment bolts to 10 Nm (89 lb-in) and the pump screen attachment bolt to the spacer at 25 Nm (18 lb-ft). After preparing the surfaces by applying silicone gasket and sealant on the rear seal retainer-to-cylinder block and engine front cover-to-cylinder block join points, allow the sealant to bond properly for four minutes to stop any leakage. The installation of oil pan bolts should begin with a initial torque to 20 Nm (177 lb-in) followed by an additional 60 degrees of rotation. Return the two wire harness retainers using pins and guide the engine mount studs before lowering the engine. Fasten the two engine mount nuts to 90 Nm (66 lb-ft) before reinstalling the engine-to-transmission spacer plate as well as the flexplate. Add clean engine oil to the unit while you start the motor for leak assessment. Proper repowering of a vehicle with a fire suppression system requires compliance with essential safety protocols.