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U.S. Based Company
HOLIDAY HOURS 877-216-5446

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Customer Service

  • Monday to Friday: 7am - 6pm CST
  • Saturday: 8am - 6pm CST
  • Sunday: Closed

Holiday Hours

  • Saturday Dec 24th: 8am - 6pm CST
  • Sunday Dec 25th: Closed
  • Saturday Dec 31st: 8am - 6pm CST
  • Sunday Jan 1st: Closed


  • Monday to Friday: 7am - 10pm CST
  • Saturday: 8am - 8pm CST
  • Sunday: 8am - 10pm CST


  • Monday to Friday: 7am - 6pm CST
  • Saturday: Closed
  • Sunday: Closed

Dee Zee Diamond Plate Bed Rail Caps 21999B

Product Information
List Price:
Our Price:
4.3 (4 reviews)
Part #:
Black Tread
Without Stake Pocket Holes
1980-1996 Ford F150 8' Bed, 8' Bed
1980-1996 Ford F250 8' Bed, 8' Bed
1980-1997 Ford F350 8' Bed, 8' Bed
  • Fits over factory caps
  • Sold in pairs
Add to Cart
Ships Jan 23rd - 25th


Measure Your Truck Bed for a Tonneau Cover

  • Durable aluminum construction
  • Rugged diamond plate styling
  • Custom fit design
  • Simple and easy to install
  • Protects your rail tops & will not rust
  • Available in Brite Tread or Black Tread finish
  • Available with or without stake pocket holes
  • Designed to fit over factory caps, sold in pairs
  • Made in the USA - Des Moines, IA


Dee Zee diamond bed rail caps combine classic truck style with rough and tough durability. They are an ideal solution for guarding your bed rails against dents, dings, and scratches when hauling anything with your truck.

Constructed using heavy duty aluminum, Dee Zee diamond plate bed rail caps are the top of the line when it comes to truck bed protection. They are resistant to rust and corrosion, which ensures your truck bed caps will be long lasting and continue to look great for years to come. Thanks to their diamond plate pattern, they have an added amount of strength and durability over other bed caps.

When ordering your Dee Zee diamond plate bed rail caps, you have the option of choosing either classic Brite Tread or matte black finishes. Both will add a sleek and slick look to your pickup truck that admirers and onlookers will love. They are also available with or without the stake pocket hole cut outs in order to personalize them to your unique needs. Each pair is also made to fit the make and model of your truck.

Installing a pair of Dee Zee diamond plate bed rail caps is as easy as can be, and can be accomplished at home without professional assistance. They require no drilling for most trucks, and do not need to be cut down to size thanks to their precise fitment. Should you have questions about installation, our customer service team is available to help.

If you do any sort of hauling with your truck at all, this is a highly advisable aftermarket accessory upgrade to make. Made in the USA and backed by a limited lifetime warranty from Dee Zee. Order now!

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Dee Zee diamond plate truck bed caps are easy to install yourself, right at home. There is no drilling or cutting required for most models and the instructions are simple and easy to follow. For additional information please call us at 1-877-216-5446 or 701-253-5906.

PDF Icon Dee Zee 11984 Installation Instructions

Limited Lifetime Warranty

Dee Zee has a limited lifetime warranty on their diamond plate truck bed caps against defects in materials or workmanship as outlined below.
Dee Zee, Inc. guarantees the original purchaser a limited lifetime warranty against manufacturer defects in materials, workmanship, and design under normal use excluding damage resulting from road hazards such as gravel or other debris, product misuse, improper installation, impairments from accidents, product modifications, spills, vandalism, or product neglect. Wear items such as shocks, latches, keys, hinges, step pads, seals, etc. have a one-year warranty. This warranty applies only to new products and is limited to the repair or replacement of genuine Dee Zee products. Warranty does not include electrical components, light bulb replacement, and cost of removal, installation, labor, transportation costs, and loss of use, inconvenience, or consequential damages. Modifications of any kind to Dee Zee product voids all warranties. The original purchaser may be required (at Dee Zee's sole discretion) to return the defective merchandise, provide a photograph, or provide the original purchase receipt to the original place of purchase or Dee Zee, Inc.

Product Reviews Summary

Price / Value
Ease of Installation
4  Customer Reviews
5 Star
4 Star
3 Star
2 Star
1 Star
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Nice fit .
Part #: DEZ-21999B Posted on
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- 1996 Ford F350 (Kent, WA)
Price / Value
Ease of Installation
I would say the only thing wrong was, in shipping the corners get bent down and these corners are sharp and will simply scratch the truck .

Other than that everything was great .
Part #: DEZ-21999B Posted on
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(Snohomish, WA)
Price / Value
Ease of Installation
Part #: DEZ-21999B Posted on
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- 1992 Ford F250 (Morehead, KY)
Had to buy my own tape only gave me bolts
Part #: DEZ-21999B Posted on
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- 1991 Ford F350 (Barstow, CA)
Price / Value
Ease of Installation
I got my Dee Bee Diamond plate bed rail caps that came with bolts only. I call the company to get the tape to hold it down. They told me that I did not need tape and the four bolts and nuts was all I needed. I went out and bought my own tape and installed both the bolts and tape and the out come was a nice tight fit. I am upset they would not send me 16 feet of tape. I am trying to find the tail gate and the front bed cap with not to good of luck. The shipping was fast and the rails was nice looking on my truck. Maybe after writing this they will find the others parts I would like to have and I will buy my own tape again if needed.