Off-Highway Powertrain Parts
What Are Off-Highway Powertrain Parts?
Off-highway powertrain parts are the genuine OEM components — gears, bearings, seals, clutch packs, valve bodies, torque converter assemblies, and transmission internals — that keep heavy equipment drivetrain systems operating in construction, mining, agriculture, and industrial environments. HMS stocks and sources these components for Dana Spicer Clark-Hurth equipment and provides technical identification support to ensure you receive the correct part for your specific application.
Wrong parts cost more than the parts themselves. A misidentified seal causes a transmission failure. An incorrect clutch pack causes a rebuild that fails in sixty days. Consequently, off-highway powertrain parts sourcing requires someone who understands the systems these components go into — not just a catalog search. HMS has supplied genuine drivetrain components since 1973 with more than 50 years of specialized experience in Dana Spicer Clark-Hurth transmissions, torque converters, and axle systems. Furthermore, Bill Sasser, our Sales Manager, brings 27 years of drivetrain parts experience to every inquiry — providing technical identification support that eliminates guesswork and prevents costly ordering errors. Additionally, our 20,000 square foot Westville, New Jersey facility maintains stock across a wide range of series so critical components ship without delays.
What HMS Stocks for Your Equipment
- Genuine Dana Spicer Clark-Hurth torque converter components — HMS is an authorized Allison Off-Highway service center, formerly authorized under Dana Off-Highway
- Transmission internals across all series — gears, shafts, bearings, seals, clutch packs, valve bodies, and control components
- Axle and differential components including planetary hubs, differential carriers, and drive shafts
- Control valves and hydraulics — solenoids, pressure regulators, and modulation valves
- Rebuilt exchange units for torque converters and transmissions — factory-specification rebuilds with warranty protection
- OEM replacement parts for legacy and hard-to-find applications including discontinued models no longer widely supported
- Technical parts identification support — provide a part number, serial number, equipment model, or physical sample and we find the correct component
Why Does Off-Highway Parts Sourcing Require a Specialist?
Off-highway powertrain systems contain components that vary by series, model year, and application — and a general parts supplier without deep product knowledge produces incorrect orders that cost time and money. Consequently, HMS maintains 50 years of exclusive Dana Spicer Clark-Hurth experience and employs a Sales Manager with 27 years of drivetrain parts expertise. When you call HMS, the person answering your parts question has spent their career on these exact systems.
Torque Converter Parts and Components
HMS stocks genuine components for the complete Dana Spicer Clark-Hurth torque converter range. Need rebuild services alongside parts? Our drivetrain rebuild team performs complete torque converter teardown, component replacement, cleaning, and functional testing at our Westville facility.
C270 Series and CL270 — compact units for smaller loaders, forklifts, and specialty equipment requiring precise control. View C270 Series, CL270 Parts
C2000 Series — mid-range converters serving construction equipment, agricultural machinery, and industrial applications. View C2000 Series Parts
C5000 Series and CL5000 — heavy-duty models for larger wheel loaders, dozers, and demanding material handling equipment. View C5000 Series Parts
C8000 and CL8000 — high-capacity units for mining equipment, large earthmovers, and extreme-duty applications. View C8000 and CL8000 Parts
C9000 Series — maximum performance converters for the largest mining trucks, shovels, and specialized heavy equipment. View C9000 Series Parts
C16000 Series — ultra-heavy-duty models for the most demanding off-highway applications with superior heat dissipation. View C16000 Series Parts
Old Torcon Industrial Converters — legacy support for older equipment and hard-to-find components across discontinued model lines.
Transmission Parts and Components
HMS supplies genuine parts across all major Dana Spicer Clark-Hurth transmission series — light-duty through ultra-heavy-duty mining class. Every series includes full parts support covering gears, shafts, bearings, seals, clutch packs, valve bodies, and control components.
Light-Duty Transmissions
- 1000 Series — compact equipment and utility vehicles
- 3400 Series — small to medium construction equipment
- 4400 Series — versatile mid-range applications
- 5400 Series — heavy-duty compact equipment
Medium-Duty Transmissions
- 8400 Series — mainstream construction equipment
- 8800 Series — enhanced capacity material handlers
- 16400 Series — large industrial applications
How Do You Identify the Correct Off-Highway Powertrain Part?
Correct part identification starts with the equipment serial number, model information, or existing part number — and ends with a specialist who has worked with these systems for decades. Consequently, Bill Sasser and the HMS parts team verify compatibility, confirm availability, and provide technical guidance before any order is processed. Provide a part number, serial number, equipment make and model, or a physical sample and we identify the exact component your equipment needs.
Heavy-Duty Transmissions
- 12000 Series — mining and large construction equipment
- 18000 Series — extreme-duty mining applications
- 20000 Series — ultra-heavy equipment
- 24000 Series — maximum capacity mining trucks
- 28000 Series — specialized heavy-duty applications
- 32000 Series — extreme mining and construction
- 34000 Series — ultra-class mining equipment
- 36000 Series — maximum torque capacity applications
TE Series — Electronic Control Transmissions
- TE08 — compact electronic control
- TE10 — small equipment applications
- TE15 — mid-range electronic transmissions
- TE17 — advanced control features
- TE27 — heavy-duty electronic models
- TE30 — large equipment applications
- TE32 — maximum capacity electronic control
T Series — Heavy-Duty Standard Transmissions
The HMS Parts Ordering Process
Every parts request at HMS follows a structured process that eliminates errors and protects your equipment.
Step 1 — Identification. Provide your part number, equipment serial number, model information, or a physical sample. Bill Sasser and our parts team verify the correct component using 27 years of drivetrain parts knowledge and our full technical catalog.
Step 2 — Availability Confirmation. We check real-time inventory and provide immediate availability status. Furthermore, when a component is not in stock, we confirm alternative options and sourcing timelines before you commit to an order.
Step 3 — Technical Verification. We confirm compatibility with your specific equipment model and application before the order ships. Consequently, incorrect parts do not arrive at your shop and cost you additional downtime.
Step 4 — Fulfillment. In-stock components ship same-day. For parts requiring sourcing, we provide a realistic timeline and keep you informed throughout. Additionally, expedited options are available for critical equipment that cannot wait.
Step 5 — Technical Support. Post-order support is available for installation guidance, troubleshooting assistance, and maintenance planning — drawing on our 50 years of exclusive Dana Spicer Clark-Hurth experience.
Why HMS for Off-Highway Powertrain Parts
Most parts suppliers apply general knowledge to specialized off-highway systems. Consequently, equipment operators receive incorrect components, face compatibility issues, and end up back on the phone explaining the same problem twice.
HMS has stocked and sourced Dana Spicer Clark-Hurth components since 1973 — exclusively. Furthermore, our Sales Manager Bill Sasser has spent 27 years supporting customers with drivetrain parts identification, sourcing, and technical support. When the component you need is obsolete, our engineering staff can manufacture replacement parts to original specifications. When it is in stock, it ships the same day. Additionally, HMS holds Allison Off-Highway authorized service center status — formerly authorized under Dana Off-Highway — and every parts transaction is backed by our ISO 9001:2015 certified quality management system. That combination of authorization, experience, and certification is what gets the right part to your operation the first time.
Frequently Asked Questions About Off-Highway Powertrain Parts
Provide your equipment serial number, model information, or existing part number to our parts team. We also work from parts books, equipment manuals, and physical samples. Furthermore, our 50 years of exclusive Dana Spicer Clark-Hurth experience allows us to identify correct components even with limited information — including older and discontinued models most suppliers cannot support.
Yes. HMS maintains inventory for legacy equipment including Old Torcon Industrial converters and discontinued transmission series. Furthermore, when OEM parts are no longer available, our engineering staff can manufacture custom replacements meeting original specifications. We also maintain relationships with specialty suppliers for hard-to-find components across aging fleets.
Yes. HMS offers factory-specification rebuilt exchange units for many torque converters and transmissions. These units provide significant cost savings while maintaining OEM performance standards. Furthermore, all rebuilt components include warranty protection and meet original equipment specifications — and our rebuild services team at our Westville facility performs every rebuild in-house.
Provide part numbers where available, along with equipment make, model, and serial number. For components you cannot identify, a physical sample or clear photograph works. Consequently, our parts team can verify the correct component and confirm pricing and availability before any order is processed. Contact us at sales@hydromechanical.com or call (856) 848-8888.
Yes. Original equipment manufacturers requiring custom drivetrain parts or specialized components work directly with our engineering staff. With three engineers on staff, HMS can supply, design, and manufacture just about anything you need. Contact our OEM parts team at hydroparts@hydromechanical.com or fax (856) 848-6071.
Off-Highway Powertrain Parts Sourced Right the First Time — Since 1973
The wrong part costs more than the part itself — it costs the labor to remove it, the downtime while you wait for the correct component, and the damage it causes if it fails in service. Consequently, HMS has built 50 years of specialized parts expertise around one outcome — getting the right genuine Dana Spicer Clark-Hurth component to your operation the first time, every time. Furthermore, when your equipment needs more than parts, our drivetrain rebuild and service team is equipped to handle complete transmission and torque converter rebuilds from our 20,000 square foot Westville, New Jersey facility.