HVH410 High Voltage Hairpin Motor from BorgWarner Inc. - compact e-axle drive for heavy-duty vehicles

Reviewed: ad hoc news Accessory & Components desk. Edited and checked on 2026-06-24, 05:49. Details in the imprint.

The HVH410 High Voltage Hairpin Motor from BorgWarner Inc. looks almost modest on a test stand - a clean, ribbed metal cylinder, humming with a quiet, deep whir when it spins up under load. For fleet engineers, that compact humming block could decide the next truck platform. BorgWarner is betting that this scalable motor becomes a standard building block for heavy commercial electrification.

Designed for heavy-duty work

BorgWarner positions the HVH410 as an electric machine for buses, trucks and off-highway equipment, with continuous power ratings up to around 300 kW and peak power up to roughly 400 kW depending on configuration. The motor uses the company’s proprietary high-voltage hairpin winding technology, packing more copper into the stator slots than conventional round-wire windings.

That hairpin layout is one of the key tricks that let BorgWarner push high torque out of a relatively compact housing. Product director Hakan Yilmaz has previously highlighted hairpin windings as a cornerstone of the company’s e-axle strategy, arguing they enable higher efficiency and power density in demanding duty cycles. For a fleet operator, that translates into either more payload at the same performance or more range at the same battery size.

Hairpin technology and efficiency

The HVH410 name literally points to the stator outside diameter of roughly 410 millimeters. In BorgWarner’s modular catalog, engineers can select different lengths, cooling concepts and winding configurations, trading peak torque against efficiency windows. The hairpin coils are laser-welded, which helps maintain tight tolerances and thermal paths.

On the bench, those thermal paths matter. When the motor is held at a simulated highway climb for minutes, the housing only grows warm to the touch instead of scorching hot, according to a BorgWarner engineering demo. That controlled heat behavior is vital for long-grade truck routes, where motors see sustained load rather than short city bursts.

Integration with e-axles

The HVH410 is not a standalone curiosity; BorgWarner integrates it into complete electric drive modules with gearsets and inverters for OEMs that want a ready-made e-axle. This approach lets a truck maker package a full electric rear axle almost like a traditional differential, simplifying chassis integration and leaving more frame space for batteries.

In practical terms, a platform engineer can spec a dual-motor HVH410 arrangement for heavy tractor units or a single-motor setup for regional distribution trucks. The same basic machine scales between different GVW classes, which cuts complexity in large fleets.

OEM programs and use cases

BorgWarner does not name every customer program publicly, but it has confirmed supply deals for high-voltage drive motors with a number of global truck and bus manufacturers. These include applications in North America and Europe, where tightening emissions regulations push fleets toward hybrids and full electric drivetrains.

For a municipal bus operator, the HVH410 means fewer compromises on hill routes or in hot climates. Drivers report a strong, immediate shove when pulling away from a stop, with the electric torque replacing the familiar diesel growl by a smooth, low-frequency whine.

How it compares internally

Within BorgWarner’s lineup, the HVH410 sits above smaller HVH machines like the HVH220, which target light vehicles and compact commercial platforms. The 410 series offers higher torque, more continuous power and a diameter aimed at robust heavy-duty housings rather than tight passenger-car engine bays.

E-mobility chief Frédéric Lissalde has repeatedly framed this portfolio as a bridge from BorgWarner’s combustion-era strength in turbochargers toward a higher share of revenue from electric drives by 2030. Motors like the HVH410 are meant to slot into that long-term revenue mix as high-value, high-utilization components.

Market environment and shares

BorgWarner is listed on the New York Stock Exchange, supplying major OEMs on multiple continents with electrified and combustion drivetrain components. On 2026-06-23, BorgWarner shares traded on the NYSE around 70.53 US dollars at the close. For investors, products such as the HVH410 illustrate how the group tries to grow its electrification revenue faster than legacy combustion sales decline.

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.