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GMC K3500 Seats & Seat Upholstery - OEM Fit Covers, Foam & Complete Seats

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Transform the interior of your GMC K3500 with precision-crafted replacement seat upholstery or a set of complete assembled seats. Each upholstery kit is tailored from original factory patterns to ensure proper contour, seam placement, and an authentic look that fits your seats perfectly.

GMC K3500 seat kits are available in factory-correct vinyl, cloth, velour, or leather materials, each engineered for long-lasting durability and resistance to fading, wear, and stretching. Many options include pleated or stitched inserts, embossed patterns, and trim details that replicate the original interior design.

Prefer to start fresh? Complete reclining bucket seats are offered for many GMC K3500 applications, supplied with vehicle-specific bolt-in brackets so they install without drilling or fabrication. Choose a pair with brackets, a pair of seats only, or a single driver or passenger seat, in the style and color that suits your build.

Replacement seat foam, spring assemblies, rear seat covers, hardware, and matching panels are available for select models to complete your restoration.

Use the Vehicle Selector above to find the correct parts for your year and model, or browse below to explore available options for your GMC K3500. Factory Interiors offers upholstery made in the USA alongside assembled seating built for comfort, durability, and authentic style.

Factory Interiors
1988-1994 GMC K3500 (OBS) Std Cab Seat Upholstery & Headrest Covers Solid Front Bench w/60/40 Pleats

These replacement seat upholstery patterns are made from original seats and follow the factory pattern, pleat design and attachment points. All hardware included is the same as or similar to the original. In some cases, the attachment method has been modified to make for an easier installation. All upholstery sets include instructions, hog rings and hog ring pliers. This product is replacement seat upholstery; not slip on seat covers. The 1988 and newer Chevy/GMC Trucks and Full Size Blazer/Jimmy have the original seat upholstery heat laminated to the foam making it very difficult to remove the old upholstery. Our seat kits for these models do not require the removal of the old upholstery. Our sets will go right over the original and hog ring where the original seat cover is attached

  • Precision fit for the 1988-1994 GMC K3500 (OBS)
  • Fits: Standard Cab

Need special options? Add a Custom Order Upcharge for special colors, two-tone inserts, houndstooth, hand-made piping, customer-supplied material, and more.

$670.95
• SALE $509.95
Select Color/Material Options  
1988-1994 GMC K3500 (OBS) Std Cab Seat Upholstery & Headrest Covers Solid Front Bench w/60/40 Pleats
Factory Interiors
1988-1995 GMC K3500 (OBS) Ext Cab Seat Upholstery Complete Set Front Bench w/Center Armrest Headrest & Rear Bench

These replacement seat upholstery patterns are made from original seats and follow the factory pattern, pleat design and attachment points. All hardware included is the same as or similar to the original. In some cases, the attachment method has been modified to make for an easier installation. All upholstery sets include instructions, hog rings and hog ring pliers. This product is replacement seat upholstery; not slip on seat covers. The 1988 and newer Chevy/GMC Trucks and Full Size Blazer/Jimmy have the original seat upholstery heat laminated to the foam making it very difficult to remove the old upholstery. Our seat kits for these models do not require the removal of the old upholstery. Our sets will go right over the original and hog ring where the original seat cover is attached

  • Precision fit for the 1988-1995 GMC K3500 (OBS)
  • Fits: Extended Cab

Need special options? Add a Custom Order Upcharge for special colors, two-tone inserts, houndstooth, hand-made piping, customer-supplied material, and more.

$1413.95
• SALE $1073.95
Select Color/Material Options  
1988-1995 GMC K3500 (OBS) Ext Cab Seat Upholstery Complete Set Front Bench w/Center Armrest Headrest & Rear Bench
Factory Interiors
1979-1980 GMC K3500 (Squarebody) Std Cab Seat Upholstery Bench (Fully Pleated)

These replacement seat upholstery patterns are made from original seats and follow the factory pattern, pleat design and attachment points. All hardware included is the same as or similar to the original. In some cases, the attachment method has been modified to make for an easier installation. All upholstery sets include instructions, hog rings and hog ring pliers. This product is replacement seat upholstery; not slip on seat covers. Old seat upholstery removal is required

  • Precision fit for the 1979-1980 GMC K3500 (Squarebody)
  • Fits: Standard Cab
  • Standard Cab Pickup

Need special options? Add a Custom Order Upcharge for special colors, two-tone inserts, houndstooth, hand-made piping, customer-supplied material, and more.

$545.95
• SALE $414.95
Select Color/Material Options  
1979-1980 GMC K3500 (Squarebody) Std Cab Seat Upholstery Bench (Fully Pleated)
Factory Interiors
1981-1986 GMC K3500 (Squarebody) Std Cab Seat Upholstery Bench

These replacement seat upholstery patterns are made from original seats and follow the factory pattern, pleat design and attachment points. All hardware included is the same as or similar to the original. In some cases, the attachment method has been modified to make for an easier installation. All upholstery sets include instructions, hog rings and hog ring pliers. This product is replacement seat upholstery; not slip on seat covers. Old seat upholstery removal is required

  • Precision fit for the 1981-1986 GMC K3500 (Squarebody)
  • Fits: Standard Cab

Need special options? Add a Custom Order Upcharge for special colors, two-tone inserts, houndstooth, hand-made piping, customer-supplied material, and more.

$545.95
• SALE $414.95
Select Color/Material Options  
1981-1986 GMC K3500 (Squarebody) Std Cab Seat Upholstery Bench
Factory Interiors
1979-1980 GMC K3500 (Squarebody) Crew Cab Seat Upholstery Rear Bench

These replacement seat upholstery patterns are made from original seats and follow the factory pattern, pleat design and attachment points. All hardware included is the same as or similar to the original. In some cases, the attachment method has been modified to make for an easier installation. All upholstery sets include instructions, hog rings and hog ring pliers. This product is replacement seat upholstery; not slip on seat covers. Old upholstery removal is required

  • Precision fit for the 1979-1980 GMC K3500 (Squarebody)

Need special options? Add a Custom Order Upcharge for special colors, two-tone inserts, houndstooth, hand-made piping, customer-supplied material, and more.

$545.95
• SALE $414.95
Select Color/Material Options  
1979-1980 GMC K3500 (Squarebody) Crew Cab Seat Upholstery Rear Bench

(44 Total Products)