Detroit Diesel 8v92 Reliability: What You Need to Know

 If you’re looking to purchase an RV with a Detroit Diesel 8v92 engine, you might be wondering if the engine is reliable, especially since these engines are often found in older RVs.

So, is a Detroit Diesel 8v92 reliable? A Detroit Diesel 8v92 engine is extremely reliable. In fact, they can often be found still running in 30-year-old concrete trucks that are still running strong. Many people believe the 8v92 is one of the best engines Detroit Diesel ever made.

For more details about the reliability of Detroit Diesel 8v92 for your RV, continue reading!

We hope you find this guide helpful when determining if you should buy an RV with a Detroit Diesel 8v92 engine.

Purchasing an RV is a big decision (not to mention expensive) and you want to make sure that you are making good decisions about the type of engine that is going to get you from point A to point B!

Detroit Diesel 8v92 Engine Specifications

Here are some details about Detroit Diesel Series 92 engines, according to Wikipedia

The Detroit Diesel Series 92 is a two-stroke cycle, V-block diesel engine, produced with versions ranging from six to 16 cylinders. Among these, the most popular were the 6V92 and 8V92, which were V6 and V8 configurations of the same engine respectively. The series was introduced in 1974 as a rebored version of its then-popular sister series, the Series 71. Both the Series 71 and Series 92 engines were popularly used in on-highway vehicle applications… In the 1980s and early 1990s, the Series 92 was used as a major bus engine in North America. It was also available for several other applications: Trucks, buses, motor homes, construction, fire trucks/apparatus, industrial equipment, several military vehicles, and marine applications. The Series 92 left the market in the summer of 1995 and the four stroke Detroit Diesel engine Series 60 was introduced as a replacement.


Some believe that Detroit Diesel Series 92 engines were one of the finest engines of its time. However, due to EPA standards, they are no longer being manufactured. The engines are not very fuel-efficient.

Thankfully, due to their popularity between the 70s and 90s, parts are readily available and fairly inexpensive. This makes this RV engine more worthwhile for inevitable repairs. Due to the age of these engines, you’ll want an older and more experienced mechanic to work on your Detroit Detroit 8v92 engine.

8V92983 ft⋅lbf (1,333 N⋅m)
@ 1400 rpm
360 hp (270 kW)
@ 2100 rpm
8V92T1,186 ft⋅lbf (1,608 N⋅m)
@ 1400 rpm
430 hp (320 kW)
@ 2100 rpm
8V92TA1,242 ft⋅lbf (1,684 N⋅m)
@ 1400 rpm
435 hp (324 kW)
@ 2100 rpm
8V92TTA1,242 ft⋅lbf (1,684 N⋅m)
@ 1400 rpm
365 hp (272 kW)
@ 1950 rpm

Detroit Diesel 8v92 Manual

Unfortunately, I was unable to find a free download of the Detroit Diesel 8v92 manual online.

However, you can purchase the manual on CD, reprinted manual, or the original manual on eBay or Amazon for varying prices depending on the format you would like.

Check out all the available manuals on eBay here.

If you’re looking to do your own repairs and maintenance on a Detroit Diesel RV engine, purchasing the manual is a great idea.