Can-Am Defender HD11 & Defender MAX HD11 Frame Stiffener, 4.5 mm Steel, Gusseted Upper-to-Lower A-Arm Mount Braces, For Portals, Big Lifts and Big Tires

Portals, big lifts and oversized tires multiply the leverage on a Defender HD11's front frame and A-arm mounts. Over time that can flex or bend the mounts. This frame stiffener reinforces those known stress points so the frame stays straight under your bigger build.

Highlights

• 4.5 mm heavy-duty steel plate
• Strengthens the weak spots on the HD11's frame
• Gusseted braces tie the upper and lower A-arm mounts together
• Built for portals, big lifts and bigger tires
• Foam strip between stiffener and frame cuts rattles
• Powder coated for rust protection

Reinforcing Where It Counts

Most stiffeners plate one area. This one adds braces that connect the upper and lower A-arm mounts, so the load is shared between them instead of twisting one mount at a time.

Should You Add One?

- Installing a portal gear lift - Running a big lift or much larger tires - Hauling heavy loads over rough ground - Riding aggressively in rocks and ruts If any of these apply, a frame stiffener is low-cost insurance against frame damage.

Who It's For and What Pairs Well

For HD11 and MAX HD11 owners building a lifted or portal machine. Pair it with Defender portal gear lifts, Defender lift kits and Defender skid plates.

FAQ

Does it work with a snow plow?

No. It's not compatible with snow plow kits.

Will it rattle? A foam strip between the stiffener and frame reduces rattling.

Built From Heavy Steel

The stiffener is formed from 4.5 mm steel, and the A-arm mount braces are gusseted for extra strength at the corners where loads concentrate. A powder-coat finish protects it from rust in wet, muddy and salted conditions.

Tips for a Long-Lasting Build

• Install the stiffener at the same time as your portals or lift to save labor
• Recheck bolt torque after the first few rides
• Inspect the A-arm mounts and welds at every service
• Keep tire size within what your lift or portals are designed for

Is it hard to install? It bolts on with the included hardware; a home mechanic with basic tools can do it.

Fitment

Note: Not compatible with Snow Plow Kits

Installation Notes

Bolt the stiffener and A-arm mount braces to the frame with the included hardware, using the foam strip between the stiffener and frame.

• Installation instructions (FS-CA-HD11, PDF)