Dana Spicer D190-538
D190538GTP

The Dana Spicer D190 is a premium, heavy-duty tandem drive axle differential designed to support the most extreme vocational and on-highway applications. Known for its exceptional strength, high torque capacity, and superior durability, the D190 is engineered to handle the increased demands of trucks operating in challenging environments such as logging, mining, oilfield services, and heavy construction.

Featuring a dual-reduction gear system, the D190 delivers optimized power transfer and excellent traction even under the heaviest loads. With a gross axle weight rating (GAWR) of up to 50,000 lbs, it is ideal for vehicles operating in high gross combination weight (GCW) scenarios. Dana’s advanced materials, heat treatment, and precision machining contribute to the D190’s long service life, high reliability, and reduced maintenance requirements.

Technical Specifications

General Features:

Heavy-duty tandem drive axle differential for severe-service vehicles
Dual-reduction gearing for high-torque capacity and durability
Suitable for both on-highway and vocational/off-road applications

Axle Rating & Load Capacity:

Gross Axle Weight Rating (GAWR): 50,000 lbs (22,680 kg)
Gross Combination Weight (GCW): up to 160,000 lbs (72,575 kg)

Gear Design and Ratios:

Gear Design: Spiral bevel primary reduction and helical inter-axle gearing
Ring Gear Diameter: 19 inches (483 mm)
Input Shaft Spline Count: 39-spline (standard)
Available Gear Ratios:
- 3.07, 3.31, 3.55, 3.70, 3.91, 4.10, 4.33, 4.56, 4.78, 5.13, 5.29, 5.38, 5.57, 5.86

Construction and Materials:

Carrier Housing: Cast ductile iron for exceptional durability
Gear Material: Heat-treated alloy steel for strength and wear resistance
Differential Case: Reinforced high-strength design for extended service life

Lubrication and Cooling:

Pressurized internal lubrication system to enhance cooling and oil distribution
Optional external oil pump available for extreme-duty applications
Oil Capacity: Approx. 22–24 quarts per axle depending on configuration

Traction and Locking Features:

Inter-axle differential lock (power divider lock) standard
Optional driver-controlled differential lock for maximum traction
Designed for use in poor traction or off-road conditions

Suspension & Brake Compatibility:

Compatible with multiple suspensions: air ride, mechanical, walking beam, and heavy-haul setups
ABS-ready hubs available
Supports a range of track widths for OEM flexibility

Serviceability and Maintenance:

Modular carrier design allows easier service and part replacement
Extended service intervals depending on lubricant and duty cycle
Common parts shared with other Dana heavy-duty axles for simplified fleet support

Applications:

Heavy construction and dump trucks
Logging and forestry vehicles
Oilfield service trucks
Mining and off-road haulers
Heavy-haul transport
Refuse and sanitation trucks operating in extreme conditions

Key Benefits:

Built to handle extreme torque loads and harsh environments
Dual-reduction gearing ensures smooth, efficient power delivery
High GAWR and GCW capacity for maximum payload flexibility
Long-lasting components reduce total cost of ownership
Backed by Dana’s extensive support network and parts availability

DOWNLOAD D190 MANUAL

Weight	1.3 lbs
Category	Differential & Axle
Subcategory	Axle components

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