Product Description
1979-1989 Mercury Grand Marquis, Driver or Passenger, Bench Seat Belt
- Front bench outboard seat
- Driver or passenger side
- Retractable three-point belt
- Hardware included
- FMVSS 209 and 302 rated
Mercury's Grand Marquis is a big, soft-riding sedan that many owners now treat as a comfortable classic car for long weekend drives. Seatbelt Planet's bench seat belt replaces one outboard front position, driver or passenger, with a retractable lap and chest belt that latches into a metal push-to-release latch. Mounting hardware comes in the box.
Vehicle Fit
Fitment per Seatbelt Planet: one outer seat, left or right, on the front bench of a 1979-89 Grand Marquis sedan or coupe.
Choosing a Color
Grand Marquis buyers can choose among 52 strap shades, 13 in the premium group. Velour and vinyl interiors in these cars came in blue, burgundy, gray, tan and more.
Why Upgrade?
After decades of sun through the windshield, original front belts often turn brittle and slow to retract. A new belt restores a smooth reel and a firm latch.
Maintenance
Keep the strap out of the door jamb, let the reel draw it back gently, and clean it with a mild soap solution when the color starts to look dull.
About the 1979-1989 Mercury Grand Marquis
The Grand Marquis began as the top trim of Mercury's full-size line and became a model of its own in the early eighties. Its Panther platform, shared with Ford's LTD Crown Victoria, gave it a reputation for durability and a quiet ride.
Pre-Install Checklist
On the Mercury side you are fixing, inspect the floor bolt hole and the B-pillar mount and chase the threads.
Good to Know
One belt for one front seat.
Many Grand Marquis sedans have covered huge mileage, and the driver belt is usually the first thing inside to show wear. Replacing just that side is an easy way to make the cabin feel fresh again.
If both outboard belts are tired, order two in the same shade and they will match across the bench.
Each big-Mercury belt is stitched once you pick a shade and carries FMVSS 209 and 302 ratings from its maker.
Two-door and four-door sedans share this front bench belt in the listing, so check that your car's anchor points match before you order.
A fresh belt with a bright metal latch suits the chrome and woodgrain trim on a Grand Marquis dashboard.
These Mercurys are still affordable and easy to own, which makes them popular with younger enthusiasts as well as longtime full-size fans.
Pair the outboard belts with the matching front center belt to complete all three bench positions.
Frequently Asked Questions
Which side does it fit?
Either the driver or the passenger side of the front bench.
Is it a lap and shoulder belt?
Yes, a retractable lap and chest belt.
Is hardware included?
Yes, Seatbelt Planet includes mounting hardware.
Which years?
1979-1989 Mercury Grand Marquis.
Is a center belt sold?
Yes, the front center lap belt is a separate listing.
How many colors?
Fifty-two webbing colors, thirteen of them premium.
Questions about fit?
Call 574-226-6676.
1979-1989 Mercury Grand Marquis, Driver or Passenger, Bench Seat Belt specifications
- Seatbelt Planet aftermarket seat belt / restraint product (application per listing title)
- Vehicle application from listing: 1979-1989 Mercury Grand Marquis, Driver or Passenger, Bench
- Tested and certified to meet FMVSS 209 and FMVSS 302 (certification tag on belts)
- Sold as aftermarket replacement — confirm buckle style, retractable vs fixed, and seat type before order
- Complete belts are preferred; mixing buckle/tongue brands is not recommended (components are designed to work together)
- 1-year manufacturer warranty for component issues from ship date (excludes abuse, accident damage, or disassembly)
- 90-day satisfaction guarantee per Seatbelt Planet (installed returns may incur restocking fee)
Installation Tips — 1979-1989 Mercury Grand Marquis, Driver or Passenger, Bench Seat Belt
- Confirm this listing matches your vehicle (1979-1989 Mercury Grand Marquis, Driver or Passenger, Bench), seat type (bench vs bucket), and buckle/retractor style before installing.
- Inspect mounting points for solid metal structure. Seatbelt Planet products are aftermarket — fabrication or adapters may be required on some vehicles.
- Use appropriate grade hardware. Some listings sell mounting hardware separately.
- Install a complete belt assembly when possible; do not mix unmatched buckle and tongue brands.
- After install, verify full extension, retraction (if applicable), and latching before driving.
- If unsure, use a professional installer. Improper installation can cause serious injury.
Selection help: Seatbelt Planet FAQ / guides at seatbeltplanet.com/faq.html · phone 405-736-0088.
Vintage Car Radio does not offer installation.
1979-1989 Mercury Grand Marquis, Driver or Passenger, Bench Seat Belt manuals
- Seatbelt Planet FAQ (FMVSS, warranty, returns)
- Seatbelt Planet common questions / selection help
- Use any instruction sheet packed with your order for model-specific steps
Manufacturer: Seatbelt Planet · 405-736-0088
One-Year Seatbelt Planet Warranty
Per Seatbelt Planet, seat belts are covered under a one-year manufacturer warranty for component issues from the date shipped. Warranty returns are not accepted if there has been obvious abuse, the belt was involved in an accident, or the belt has been disassembled / components removed.
Seatbelt Planet also states a 90-day satisfaction guarantee; installed returns may be subject to a restocking fee. RMA required — contact Seatbelt Planet or Vintage Car Radio at 844-802-4499 / 574-226-6676.
Vintage Car Radio does not install seat belts.
FAQ — 1979-1989 Mercury Grand Marquis, Driver or Passenger, Bench Seat Belt
Are these FMVSS / DOT approved?
Seatbelt Planet states belts are tested and certified to FMVSS 209 and 302; the certification tag is on the belt.
Can I replace only one side?
Seatbelt Planet recommends installing a complete belt — buckle and tongue are designed to work together.
Will this fit 1979-1989 Mercury Grand Marquis, Driver or Passenger, Bench?
Match the years, make/model, and seat position in the title. Call Seatbelt Planet at 405-736-0088 if you need a custom belt.
Do you install?
No.
Need help?
844-802-4499 / 574-226-6676, or Seatbelt Planet 405-736-0088.
Specs
Installation Tips
Manuals
Warranty
One-Year Seatbelt Planet Warranty
Per Seatbelt Planet, seat belts are covered under a one-year manufacturer warranty for component issues from the date shipped. Warranty returns are not accepted if there has been obvious abuse, the belt was involved in an accident, or the belt has been disassembled / components removed.
Seatbelt Planet also states a 90-day satisfaction guarantee; installed returns may be subject to a restocking fee. RMA required — contact Seatbelt Planet or Vintage Car Radio at 844-802-4499 / 574-226-6676.
Vintage Car Radio does not install seat belts.
