MERCURY GRAND MARQUIS Parts and Accessories

Differential, Eaton Detroit Locker, 31-Spline, Ford, 8.8 in., Each

Part Number: ETN-187C145A

5.0 out of 5 stars ( 6 )

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Cylinder Head, Performer, Aluminum, Assembled, 60cc Chamber, 170cc Intake Runner, Ford, 289, 302, 351W, Each

Part Number: EDL-60329

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Estimated Ship Date: Today

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Gear, Ring and Pinion, 5.14:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0017-1

5.0 out of 5 stars ( 3 )

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Camshafts, Hydraulic Roller Follower, Advertised Duration 253/261, Lift .484/.475, Ford, Modular V8, 2V, Pair

Part Number: CCA-102530

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Carburetor, Alcohol, Holley 2-Barrel Flange, 500 cfm, 2-Barrel, Annular, Circle Track, 1.375 in. Rule, Each

Part Number: QFT-XP-4412-A

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Camshafts, Hydraulic Roller Follower, Advertised Duration 262/270, Lift .500/.500, Ford, Modular V8, 2V, Pair

Part Number: CCA-102100

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Gear, Ring and Pinion, 4.86:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0060-1

5.0 out of 5 stars ( 1 )

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Coilover Shocks, HQ 1000 Series ShockWave, Front, 2.0 in. Lowered, 650 lbs./in. Spring Rate, Black Powdercoated Springs, Ford, Lincoln, Mercury, Kit

Part Number: ART-12263110

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Disc Brake Kit, Z23 Evolution Sport Brake Upgrade with Calipers, Front/Rear, Cross-Drilled/Slotted Rotors, Red Powdercoated Calipers, Kit

Part Number: PWR-KC1365

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Estimated Ship Date: Today

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Grizzly Locker, Ford 9.0 in., 28 Spline, Each

Part Number: YGA-28008

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Clutch Kit, Concept 10.5 Dual-Disc, 1 1/8 in. Input, 26-Spline, Organic, AC, Detomaso, Ford, Lincoln, Mercury, TVR, Sunbeam, Shelby, Omega, Kit

Part Number: RAM-50-2259

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Differential, No-Slip Traction System, 28-Spline, Ford, 8.8 in., Each

Part Number: PWT-92-0688-2807

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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• Mfr. Rebate

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $744.99

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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Nitrous System, 15 lb Bottle, Ford 4.6 Plate Kit, 50-150 HP, Kit

Part Number: NEX-20946-15

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Exhaust System, CNC Mandrel-Bent, Cat-Back, Dual, Stainless Steel, Ford, Mercury, 4.6L, Kit

Part Number: STW-CRVIC03CBNTL

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Torque Converters, Twister Full Race, 2,800-3,200 rpm Stall Speed Range, 26-spline, 10.00 in. Diameter, Ford C4, Ford, Lincoln, Mercury, Each

Part Number: HAY-97-2E28F

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Nitrous System, 10 lb Bottle, Ford 4.6 Plate Kit, 50-150 HP, Kit

Part Number: NEX-20946-10

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Differential, Grip Pro Traction System, 28-Spline, Ford, 9 in., Each

Part Number: PWT-GT109028

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 16, 2025 if ordered today

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• Mfr. Rebate

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $884.99

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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Gear, Ring and Pinion, 6.00:1 Ratio, Ford, 9 in., Set

Part Number: RMG-79-0021-1

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Differential Carrier, Grizzly Locker, Chromium Alloy Steel, 31-spline, Rear, Ford 9 in., Each

Part Number: YGA-28033

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Differential, Grip Pro Traction System, 31-Spline, Ford, 8.8 in., Each

Part Number: PWT-GT108831

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Estimated Ship Date: Today

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• Mfr. Rebate

$40.00 Mail-In Rebate

Price after Manufacturer Rebate: $841.99

Rebate Expires: 12/31/2025

Get $40 back after rebate on this Powertrax Product! Go to https://www.richmondgear.com/rebate.pdf for details. ...Read More

Get UP TO $55 back after rebate on select Powertrax Products! Go to https://www.richmondgear.com/rebate.pdf for details. Valid on purchases made between 11/1/25 and 12/31/25. Claims must be submitted within 30 days of purchase. Allow 6-8 weeks for processing. Valid in USA and Canada. Limit two qualifying purchases per household or address. This offer cannot be combined with other discounts or offers. Rebate intended for end consumer only. Show Less

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Grizzly Locker, Ford 9.0 in., 31 Spline, Each

Part Number: YGA-28009

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Estimated Ship Date: Dec 22, 2025 if ordered today

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Ring and Pinion Gears and Installation Kit, 9.0" FORD 3.25 RATIO R&P GEAR/ INSTALL KIT PACKAGE; WITH 28spl T/L POSI (FITS 3.062" DO/ DAYTONA PS)

Part Number: YGA-12568

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Estimated Ship Date: Today

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Torque Converter, Holeshot, 3,400- 3,800 rpm Stall Range, Ford, C-4, 26 Spline, Each

Part Number: BMM-50454

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Estimated Ship Date: Dec 15, 2025 if ordered today

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Coil-Over Kit, Single Adjustable, Front, 550 lbs, Spring Rate, Ford, Pair

Part Number: AAX-300183

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Estimated Ship Date: Dec 10, 2025 if ordered today

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Coil-Over Kit, Single Adjustable, Front, 650 lbs, Spring Rate, Ford, Pair

Part Number: AAX-300184

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Estimated Ship Date: Dec 10, 2025 if ordered today

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