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  • Kenworth W900L 2007 & Newer AK Lite 7" Dynaflex Chrome Exhaust Kit
  • Kenworth W900L 2007 & Newer AK Lite 7" Dynaflex Chrome Exhaust Kit Stacks
  • Kenworth W900L 2007 & Newer AK Lite 7" Dynaflex Replacement Cover
  • KW W900L 2007-2010 Side View
  • KW W900L 2011-2017 Side View
  • KW W900L 2018+ Side View

Kenworth W900L AK Lite 7" Dynaflex Chrome Exhaust Kit


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Kenworth W900L 2007 & Newer AK Lite 7" Dynaflex Chrome Exhaust Kit

*Only Fits 2007 & Newer Trucks

*Does NOT fit Day Cab Trucks

Avoid heat shields, baked on bugs, and slurry by transforming the look of your Kenworth with this custom fit kit! Patented Air Kooled technology helps prevent heat from getting in your chrome.

Premier Quality Stacks With A Look That Is Unmatched!

  • AK Lite 7" Dynaflex Exhaust Kit
  • Fits Most Kenworth W900L DEF Models (2007 & Newer), (2011-2017), Or (2018 & Newer) (Choose Option Above)
  • Kit Application: Overframe Body And Patented AK Lite Elbow
  • Stacks Available In 36", 44", 48", 54", 60", Or 68" Length (Choose Option Above)
  • Available With Flat Top, Mitered, Chino, Dynaflex Curve, Eagle Claw, Or Ozzie Curve Top Stacks (Choose Option Above)
  • All-In-One Stacks and Heat Shield
  • Includes Super Bright 304 Stainless Steel Replacement Box Covers For Both Driver & Passenger Side Of Truck
  • Sold As A Kit
  • Quality American Made Product

Need Help Selecting Your Stack Length? View Dynaflex Top Stack Height Chart

These kits are the real deal - patented AK chrome pipework - complete bracket kit - super bright 304 stainless steel replacement box covers - no drilling - no fabrication - quality bolt on parts that transform new emission W900L model trucks from good looking to show stoppers. These W900 systems are a two for one - upgrade the look of your truck in a major way with the only option for new emission W900’s!

*This product ships LTL Freight and the shipping quotes are based on commercial addresses only. If you need a quote to have this delivered to a residential address or farm, please call us so we can provide you with an accurate shipping price. Failing to provide a commercial address could result in delays with processing your order. Please refer to our Shipping Info section at the bottom of our website for more information.

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Warranty Information

DynaFlex General Warranty Policy

Dynaflex Products are warranted for one year (1 yr.) from date of purchase with proof of purchase only.

Warranty Claims:
Dynaflex Products warrants the products or components parts sold conform to the specifications and physical descriptions contained in any or all Dynaflex Product literature, including but not limited to product catalogs, flyers or individual sale sheets. The Limited Warranty appearing on any or all Dynaflex Product literature is exclusive and is in lieu of all warranties whether written, oral or implied, including any warranty on fit or purpose.

Limited Warranty:
This warranty applies to and is for the benefit of the original purchaser only. If proof of purchase cannot be supplied, then the warranty will be from date of shipment, against defect in material and workmanship. This warranty does not apply if the defects are due to accident, neglect, corrosive environments or other abnormal service conditions.

Neglect, Corrosive Environments, and Abnormal Conditions:
If chrome is exposed to rock salt on snowy road conditions for extended periods of time it will corrode, crack, chip, and peel the chrome. Chrome needs to be cleaned intermittently to remove any corrosive materials. If your truck has an engine that is 2007+ the AK systems are the only systems Dynaflex Products can warrant. 07+ engines with a DPF will run very hot (1200 degrees), the AK system is the only product that can handle that heat. If you have on 07+ system that was factory fit with a DPF, but the DPF has been removed it will void your warranty for your chrome. 2007+ engines have engine programming that makes them burn rich, if you remove the DPF system, un-combusted Hydrocarbons will discolor and harm the chrome, Dynaflex Products is not responsible for holding warranty on trucks that changed from their OEM exhaust design. 2010+ exhaust systems contain selective catalytic reduction systems that use DEF (ammonia) to neutralize NOX. Ammonia is an environment contaminant and can discolor your chrome if not cleaned. SCR systems may let small amounts of aqueous ammonia out the tailpipe. Cleaning the tips of your tailpipes will ensure your chrome lasts. DPF/SCR systems that are improperly that improperly maintained may void your chrome warranty. DPF systems need to be cleaned every 1,000-1,500 operating hours. If not temperatures in your exhaust system may reach levels that chrome cannot withstand.

Dynaflex Products innovated the 3 piece (Z-series) stack design and can only warrant complete z-series parts. We cannot warrant, for example, a Dynaflex Products elbow used with an import spool. We cannot guarantee the taper-loc joint will seal correctly if not using complete Dynaflex Products z-series kits with Dynaflex Clamps. This warranty is limited to the provisions shown and Dynaflex Products does not assume responsibility for the cost of removal or installation of the product or any consequential expense. Should the product appear to be defective within the warranty period, it should be returned to the dealer that the parts were purchased from. If their inspection confirms that the product failed as result of material or workmanship, and Dynaflex Products accepts responsibility the product will be replaced at no charge.

All Returns:
A written copy from Dynaflex of the Return Good Authorization (RGA) is required prior to returning merchandise. All returns must be shipped prepaid to Dynaflex, Commerce, CA and have the RGA number clearly and boldly marked on the outside of the shipping box(s) or the shipment may be rejected. An RGA is only valid for 30 days after being issued if received after this time frame the shipment will be rejected. All shipping costs, including duties, brokerage fees, drayage, etc., will be at purchaser's cost.

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