Shop Mercury Grand Marquis by category
Parts that fit your Mercury Grand Marquis, by department.
Drivetrain & Transmission381 parts
Engine Parts109 parts
Fuel System90 parts
Exhaust Systems57 parts
Tools & Equipment19 parts
Electrical Parts9 parts
Suspension & Steering8 parts
Off-Road Accessories5 parts
Interior Accessories2 parts
Performance Parts1 part
Body Parts & Exterior1 part
Brakes1 part
Mercury Grand Marquis
Parts fit 1975 to 2011. Owner reports cover 1996 to 2025, mapped to 1 NHTSA name, so vehicles of very different ages are counted together.
115 of 683 parts name an engine. The other 405 fit any, so choosing one here only narrows those 115.
What owners report
6 of 12 components, the largest by share, together 60.0% of all mentions. 3,114 reports filed with NHTSA from 1996 to 2025, read through 16 name and year queries against 1 source name. A report can name more than one component, so these 3,114 reports carry 3,982 mentions, 1.28 for each report, and every share below is of those 3,982. 55 more mentions were filed as unknown or other and are excluded from both the rows and the total.
What we can sell for it
683 parts from 30 brands fit this vehicle across 12 categories, and parts listed here fit model years 1975 to 2011. Drivetrain & Transmission is the deepest at 381 parts from 4 brands. 4 of the 6 components above map to a category we stock, and the other 2 map to none.
Where the two lists meet
Each row pairs a reported component with the shelf that answers it, deepest complaint first.
Exterior Lighting is the largest single complaint on this vehicle at 21.5%.
What the complaints table says
Exterior Lighting stands out on the Grand Marquis complaint list, pulling 21.5% of the 3,114 reports filed with NHTSA, the government's database for owner safety complaints.
Engine and Engine Cooling is next at 10.1%, followed by Electrical System and Vehicle Speed Control near 8%.
Steering and Service Brakes close out the list in the mid to low single digits.
A share this size reflects how often the topic comes up in reports, not what's ahead for your own Grand Marquis.
What the parts table says
Drivetrain & Transmission is the deepest shelf here, 381 parts across 4 brands.
Engine Parts adds 109 parts, and Electrical Parts another 9, both matching rows on the left.
Fuel System and Exhaust Systems sit outside anything owners reported, at 90 and 57 parts.
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Every Mercury we build a fitment guide for. Pick another model to see the parts that fit it.