A “B10-life” rating is an industry-standard gauge provided by engine makers to help consumers determine the long-term durability of an engine, Isuzu says. The number following the “B” indicates the percentage of an engine’s population that will require an overhaul before the indicated mileage.
Isuzu says this means 90 percent of Isuzu 4HK1-TC engines are expected to last 375,000 miles before they require a major repair or rebuild. Previously, the 4HK1-TC engine carried an already-robust B10 durability rating of 310,000 miles.
“We are proud to say that Isuzu diesel engines are already known worldwide for their long-term dependability,” says Shaun Skinner, president of Isuzu Commercial Truck of America. “Our new B-10 rating is strong evidence that our engines are even more durable than ever.”
The turbocharged, intercooled 4HK1-TC four-cylinder diesel engine displaces 5.2 liters and generates 215 horsepower. Torque ratings vary depending on model, Isuzu says.
The engine is fitted to Isuzu NPR-HD, NPR-XD, NQR and NRR models, as well as the all-new 2018 Isuzu FTR Class 6 truck. The company says each of these models is backed by a three-year/unlimited mileage powertrain limited warranty.
