HE551 Turbocharger for Cummins QSB Engines

Fit & Compatibility: Precision-built for Cummins QSB engines, matching part numbers: 4044133, 4043228, 404322800, 3887606—ensures seamless fit for QSB-powered equipment, no modifications required.

Who It’s For: Industrial equipment operators, fleet managers, and diesel mechanics maintaining QSB-engine machinery (e.g., construction excavators, agricultural tractors, industrial pumps) needing reliable turbo replacements.

Problems It Solves: Fixes QSB engine issues like reduced power, turbo lag, excessive fuel consumption, and uneven performance from worn turbos. Restores factory efficiency, cuts downtime, and prevents costly engine damage.

Key Features: Industrial-grade durability, OEM-matching airflow, heat-resistant components for heavy-duty use.

FAQ

Will it fit a 2015 Cummins QSB tractor? Yes—works for all QSB-engine equipment.

Installation tools needed? Standard diesel mechanic tools; professional experience recommended.

Warranty? 24-month manufacturer coverage against defects.

How to Use

Confirm your engine is a Cummins QSB; cross-check old turbo part number.

Disconnect hoses/electrics, remove old turbo, install the HE551.

Reattach components, test for leaks, and verify power output.

About Us

With 20+ years in Cummins aftermarket parts, our team specializes in QSB-compatible turbos. Every HE551 undergoes pressure and performance testing. Our support team (Mon-Fri, 7am-7pm CST) helps with fitment—contact via chat/email!

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