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2011-2019 Duramax Upper Control Arm Kit (KRUCA11)

(17)
KRYPTONITE
$1,014.99 CAD

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  • Canada Pickup Available
    10+ available
  • United States Import Fees covered by Dirty
    10 available

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Fuel Your Build with These Extras

2011-2025 Duramax Cam Bolt Kit (KR86376)

Part No. KR86376
$144.99
Truck Fitment

Description

Upgrade your GM 2500–3500 HD truck with Kryptonite Upper Control Arms for stronger, smoother rides. Built tough in the USA, they handle lifted, leveled, or stock setups with ease. Perfect for diesel enthusiasts seeking reliability and performance on or off-road.

Part Number: KRUCA11

Features
  • Heavy-duty construction 
  • Precision fitment 
  • Long-term durability 
  • TIG-welded strength 
  • Improves driving quality

Includes:

  • Driver's side upper control arm
  • Passenger side upper control arm
  • 4 x Control arm sleeves
  • 8 x Control arm Bushings
  • 2 x Kryptonite Bolt-on Upper Ball Joints
  • 1 x Hardware Package

Additional Info
  • When running stock wheels with oversized tires, clearance is limited and may rub the control arm. Please contact us prior to purchasing if running this setup.
  • Access to grease fittings on your upper control arms can often be a pain. Kryptonite has eliminated this problem by changing the locations of its newest version of the upper control arms from Kryptonite
  • The hardware kits with your arms include multiple grease fittings as well as grease port plugs. This allows you to have great serviceability no matter how your upper control arms sit.

Recommended when replacing the Upper Control Arms

Warranty 

Kryptonite No Fine Print Lifetime Warranty: Kryptonite steering and suspension components are warranted for life to their original purchaser. This warranty covers manufacturer defects, premature wear, or breakage. Race it, jump it, off-road it, wreck it, lift it—we don’t care. If you can break it, we will replace it.

Your product(s) must be registered within 90 days of purchase at kryptoniteproducts.com. Click the Warranty tab on the home page and follow the Warranty Registration link. Proof of purchase is required. Without proper registration, warranty claims will be void.

Installation

Questions and Answers

Don't see your question? Ask us anything about this product.

  • Hi, I’m running 20” OE rims w/ 275/65 tires. Are there contact/rubbing issues using these UCAs

    No, you will not experience rubbing issues on the control arms with this specific setup. Kryptonite explicitly states that when paired with OEM wheels, these control arms can clear tires up to a maximum section width of 11.50" (or 11.2" depending on exact wheel model year).

  • Will these work with a 3.5 inch lift

    Yes!

  • Do these work with a 3 1/2 inch lift with factory knuckles?

    Yes, they will work, but only if that 3.5-inch height is achieved via a dedicated bracket-style suspension lift kit rather than purely cranking the torsion keys.

  • Does this kit come with the cam bolts?

    No.

  • In the pictures it shows cam bolts, do they come with cam bolts or is that separate?

    The Kryptonite Cam Bolt Kit (KR86376) is not included.

  • Can these work with a 6 inch lift, 35 inch tires and 20 inch wheels?

    Yes

  • I got a 2011 3500 single wheel duramax with a 6.5 bds lift with stock UCA’s Will they fit?

    Yes

  • Hi, I’m running 20” OE rims and tires. Are there contact/rubbing issues using these UCAs

    Nope!

Vehicle Fitment - Part No: KRUCA11

Loading Fitments...

Customer Reviews

Overall rating: 4.9 / 5 from 17 reviews.

Customer photo review of 2011-2019 Duramax Upper Control Arm Kit (KRUCA11)

Parts arrived quickly. I recently installed the kryptonite levelling keys. And although it did work, I found my ride quality rough after install and alignment. After installing the upper control arm kit, my truck is still leveled but now rides smoothly. Instructions were simple and detailed. Highly recommend !

Taylor F. 5/5 Verified

2011-2019 Duramax Upper Control Arm Kit (KRUCA11)

Customer photo review of 2011-2019 Duramax Upper Control Arm Kit (KRUCA11)

Very impressive product, love the way the ball joint is "bolted" on the control arm, installation went well. Way more heavy duty than the original one, I highly recommend.

Michael M. 5/5

2011-2019 Duramax Upper Control Arm Kit (KRUCA11)

Just installed and am really happy (should have done them sooner tbh). Also sprayed some clear coat over the top to try and keep them nice for a little longer in the winter roads (salt etc.). Recommend!

Michael F. 5/5

2011-2019 Duramax Upper Control Arm Kit (KRUCA11)

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