Chevrolet teamed up with premier off-road aftermarket supplier AEV (American Expedition Vehicles) to create the new 2019 Colorado ZR2 Bison (RPO ULV). (Fig. 1)
Fig. 1
The unique Bison model includes a number of heavy-duty performance features (Fig. 2) engineered to tackle some of the toughest off-road trails:
- 17 x 8-inch AEV-designed aluminum wheels and wheel flares
- 31-inch all-terrain tires
- AEV-designed stamped steel front bumper with winch provisions
- AEV-designed stamped steel rear bumper with integrated recovery points
- Five hot-stamped Boron steel skid plates that protect the engine oil pan, fuel tank, transfer case, and front and rear locking differentials
- Fog lamps
Fig. 2
Additional Bison-specific content includes a unique black grille with Chevrolet lettering and AEV badging on the floor liners, head restraints, tailgate (Fig. 3), and wheel center caps.
Fig. 3
An accessory AEV snorkel that provides air filtration while driving on dusty trails is optional. The snorkel kit is available for all Colorado models. (Fig. 4)
Fig. 4
Built on ZR2
Based on the Colorado ZR2, the Bison also features a 3.6L V6 engine or 2.8L Duramax turbo-diesel engine along with standard ZR2 content: Multimatic DSSV (Dynamic Suspensions Spool Valve) shocks with position-sensitive damping, front and rear electronic locking differentials, ZR2 trailering package, and off-road rocker protection.
Bison Model Service
The Bison model is serviced the same as other Colorado ZR2s. The Service Information for the 2019 Colorado includes specific procedures for models equipped with Bison components. Be sure to review the correct information for the vehicle being repaired.
All AEV-specific components are warranted by AEV.
– Thanks to Charles Hensley
