Access Original part 12189 is the 8' Long Box bed application for the 1999-2007 Chevrolet Silverado 1500, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500 Classic and Silverado 3500 HD and GMC Sierra 1500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500 Classic and Sierra 3500 HD. Reinforced textured vinyl carries UV protection and stays pliable down to -40°F, so it rolls in January as easily as in July. The fitment table confirms the exact trucks, and the Installation tab lists the mounting method and any extra hardware this truck calls for.
What's Included:
- Pre-rolled cover assembly with front bar, Slantback rear bar, support bows and AutoLatch II latches
- Driver and passenger side rails with weather strip
- Left and right XT-Dial tension adjusters with bolts and nuts
- Tight Bite rail clamps (quantity set by bed length)
- Bulkhead seal gasket and rear seals
- Premium nylon storage straps
- Alcohol prep pad
Tools, sealant for factory holes and stake pockets, and optional add-ons such as a tailgate gasket, bed light or cargo reaching tool are not included.
Features
AutoLatch II dual latches
One pull on the cord from either side frees both nylon latches at once. Close the cover and they lock under the side rails on their own, with 1/2" of latch engagement.
XT-Dial tension control
Hand-turned dials tighten or loosen the vinyl in small steps. Turn both sides by the same amount and no tools are needed.
Sealed on four sides
Vinyl seals at the front and rear, foam on both side rails, an Element Seal gasket across the bulkhead and rear corner seals close off the usual gaps around the bed.
Hook-and-loop side closure
A 1-1/2" wide slide-in hook strip meets the angled rail to close each edge, and the cover rolls up tight enough for one person to manage.
Cab guard storage straps
Heavy-duty nylon straps and buckles hold the rolled cover at the front of the bed and keep it from rubbing the cab. With the cover closed, the straps clip away underneath.
Increased capacity profile
The cover sits 1-1/2" above the bed rails over black aluminum rails, bars and 3 bows, finished at the tailgate by the Slantback rear bar.
Cold-flexible textured vinyl
Reinforced, commercial-grade vinyl with UV protection stays pliable down to -40°F, so the cover keeps rolling through winter.
Fitment & Compatibility
Fit guidance: Fits the 1999-2007 Chevrolet Silverado 1500, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500 Classic and Silverado 3500 HD and GMC Sierra 1500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500 Classic and Sierra 3500 HD with the 8' Long Box. A near-identical truck configuration takes a different part (part 12229); match the qualifiers exactly. GM names its boxes by a rounded figure; measure the bed floor if you are unsure which box you have. Will not fit dually (dual rear wheel) trucks.
Specifications
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Brand: Access
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Series: Original
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Cover style: Soft roll-up tonneau cover
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Cover material: Textured vinyl, reinforced, commercial grade, UV protected
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Color: Black
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Cold weather: Vinyl stays flexible to -40°F
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Profile: 1-1/2" above the bed rails
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Latch: AutoLatch II dual locking system, nylon latches
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Tension adjustment: XT-Dial tension adjusters, tool-free
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Sealing: Front and rear vinyl seals, side-rail foam, Element Seal bulkhead gasket, rear corner seals
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Side fastening: 1-1/2" wide slide-in hook and loop
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Frame: Black aluminum side rails, bars and 3 bows
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Rear bar: Slantback rear design
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Storage straps: Premium nylon straps with cab guard design
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Mounting: Tight Bite clamps on most trucks; some applications use special or bolt-on hardware (see Installation tab)
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Warranty: 5-year limited
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Fits: 1999-2007 Chevrolet Silverado 1500, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500 Classic and Silverado 3500 HD and GMC Sierra 1500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500 Classic and Sierra 3500 HD
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Bed: 8' Long Box
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Part number: 12189
Installation
Type: Clamp-on for most trucks, special or bolt-on hardware on some · Install: side rails, bulkhead and rear seals, then the pre-rolled cover and tension adjusters
Follow the standard Original manual together with any truck-specific sheet listed on the Installation tab. Recheck the clamps and front bar bolts from time to time after the install.
What the instructions for this truck call for:
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Tools listed: (2) 1/2" Wrenches, Marking pen, Protective eyewear, Tape measure or ruler, Ft-lb Torque wrench with 1/2" socket, Scissors, Spring clamp - optional
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Torque: Torque all clamps to 20 ft-lbs or value specified in special instructions (if supplied).
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Torque: Verify each clamp is torqued to 20 ft-lbs or value specified in special instructions (if supplied).
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Drilling: the instructions for this truck include no drilling step.
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Bed liners: Under the rail drop-in bed liner requires minimal modification at front corner of box and back by tailgate. Over the rail drop-in bed liner requires considerable modification.
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After installing: For trucks with electric tailgates, cover and tailgate should remain closed after installation for at least 24 hours. (electric tailgates only)
Resources
Warranty, Shipping & Returns
Warranty. Agri-Cover covers the Access Original with a 5-year limited warranty against defects under normal use on the truck it was made for. It repairs or replaces defective parts at its option; labor is not covered. Shipping. Shipping options and delivery estimates for this cover are shown at checkout. Inspect on delivery. On arrival, unpack the cover and check the rails, bars, vinyl and hardware against the component list in the manual before you start the install. Keep every carton and piece of packing until the cover is installed and working correctly.
Returns. Unused items in their original packaging can be returned within 30 days of delivery. If an item arrives damaged, defective or wrong, return shipping is on us. See our Returns & Refunds Policy, or email support@prestigetruck.com with any question.
About Access
Access roll-up covers are designed and built by Agri-Cover, Inc., a Jamestown, North Dakota manufacturer that has made roll-up truck bed covers since 1991 alongside its racks, hard covers and farm roll tarps.
The Original is the baseline of the Access roll-up family. The Limited Edition adds a bundle of accessories, the Lorado drops the profile to 1", and the Toolbox Edition starts behind an over-the-rail toolbox, while all of them keep the Original's AutoLatch II latches and Slantback rear bar.
Every Access cover carries a serial number on a decal under the rear bar by the tailgate; have it ready for warranty claims or replacement parts. Agri-Cover repairs or replaces defective parts under the 5-year limited warranty, and labor is not included.