Powertrain

Powertrain Overview

Tenneco´s Powertrain business group designs, develops and manufactures original equipment components and innovative technologies that help engine designers meet increasingly demanding customer, regulatory and market requirements in every region of the world. Whether for gasoline, diesel, alternative fuel or electric & hybrid applications, across every sector, the company’s advanced components and systems, specialized coatings and proprietary manufacturing processes help to reduce emissions, improve fuel economy and enable advances in engine design, from small 25 mm bore to engines with over 1,000 mm bore and more than 100,000 hp. Tenneco Powertrain is a leader in the OE light vehicle, commercial truck and off-highway markets and also supplies related technologies to the power generation, marine, rail and industrial sectors.

Product Families

Piston Rings

Tenneco's industry leading piston ring designs rings resist high temperature and very abrasive environments without significant wear. With combustion pressures and temperatures increasing and oil control now recognized as a critical aspect of reducing particulate emissions, piston rings are a vital area for innovation. Advanced materials, coatings and design features developed by Tenneco engineers help manufacturers to meet engine challenges head-on. See piston rings for large bore engines.
Pistons

Pistons help engine designers increase temperatures, combustion pressures and loads - critical developments for more efficient combustion. Our range of proprietary pistons manufactured using state-of-the-art processes are tailored for specific market sectors, contributing to lighter, more compact engines with higher performance, greater efficiency and durability. See pistons for large bore engines.
Cylinder Liners

Achieving outstanding component interactions depends on dimensional consistency, and that relies on expertise in design, analysis, materials and manufacturing: all areas where Tenneco has considerable strength. Nowhere is this more important than for cylinder liners that must provide a high-quality running surface for the ring pack as well as excellent heat transfer.
Bearings

Whether for automotive, off-highway or industrial applications, our bearing technologies deliver environmentally friendly solutions that combine high performance, reliability and exceptional lifetime. Tenneco offers the full breadth of material and manufacturing technologies necessary to provide lead-free solutions for the entire global engine and transmission market. See bearings for large bore engines.
Valves

Tenneco develops and manufactures high quality engine valves and valvetrain components that address high temperatures and mechanical loads. Our advanced materials and manufacturing expertise ensure outstanding thermal characteristics and durability. Our portfolio comprises monometallic, bimetallic and hollow valves, so valve design and material can be selected specifically to give the optimum combination for each individual customer application. See valves for large bore engines.
Valve Seats and Guides

Advanced valve seat and valve guide technologies from Tenneco use high performance powder metal materials that withstand the extreme tribological requirements of the combustion environment and deliver industry leading thermal conductance to cope with rising temperatures in even the most demanding engines. This enables vehicle manufacturers to achieve CO2 reduction strategies using turbocharged, direct injection and ethanol-capable downsized, high output engines, without having to compromise their designs. See valve seats and guides for large bore engines.
Sealing, Gaskets and Heat Shields

New challenges for joint sealing and heat shielding are constantly emerging as temperatures, pressures and mechanical loads increase and target assembly times are reduced. Meanwhile, packaging space and joint face geometry is more restricted as engine compartments become increasingly crowded.

Tenneco Powertrain meets these challenges by developing superior sealing and shielding solutions for vehicle, transportation, rail, machinery and industrial markets worldwide.
Ignition

Modern spark plugs must ignite fuel even at very high combustion pressure and with very clean fuel-air mixture. Tenneco is a market leader in the development of innovative ignition products that help to make advanced engine designs and enable direct injection and multi-valve installation that address challenges like extreme combinations of fluctuating thermal, mechanical and electrical loads. See ignition for large bore engines.
Vehicle Hybridization Technologies

Developed by our Controlled Power Technologies product group, our range of vehicle hybridization technologies utilize otherwise wasted kinetic and exhaust gas energy to reduce emissions and fuel consumption while also supporting enhanced performance. Our proprietary portfolio includes advanced starter-generators for mild hybrid applications, electric superchargers for increased air supply of ICEs and Fuel Cells, turbo-generator integrated exhaust gas energy recovery systems and gear- or shaft-driven, bi-directional integrated motor-generators for driveline hybridization. More Information