Experience
The Power of Diesel

Brand New Cummins
4BT and 6BT Engines

Used & Remanufactured
Diesel Engines

Industry Leading
Warranty

Industrial
Applications

Diesel Engine
Off-Roading Applications

Blog

Top 10 Most Popular Colorado Off-Roading Trails

There are thousands upon thousands of great off-roading trails in the US. Whether you are a rock crawler, love speed in the open desert or like cruising on an ATV or Polaris this land has a little bit of everything. We here at Big Bear have the luxury to live right the foot of the…
Read more

Map of 85 Best Off-Roading Trails in Colorado

This is an excellent map from our friends over Staythetrail.org and Atfiles.org which showcases the most popular OHV trails in Colorado. For those looking to narrow it down a bit check out our post ranking the 10 best off-roading trails in the state. Click Map to Enlarge
Read more

×
Big Bear Engine Company Buyer's Guide

Need help researching a 4BT swap?

Get the FREE 8-page buyer's guide