MERITOR Axle Housings 3278-W-335.

( Brand: Meritor ), ( Manufacturer Part Number: 3278-W-335 ), ( Part Type: Axle Housing ), ( Manufacturer Warranty: Yes )

Review MERITOR Spider 3278-w-335. Several In Stock

The Meritor 3278-W-335 is a heavy-duty, single reducer, planetary gear power take-off unit (PTO) designed for commercial vehicles and industrial applications. This PTO unit is engineered to provide maximum power transfer efficiency and durability.

The Meritor 3278-W-335 is equipped with a robust, cast iron housing that ensures strength and stability. The housing is splined to the transmission or engine and features a three-point mounting system for secure installation. The unit is available in various input shaft sizes to accommodate various vehicle and equipment configurations.

The Meritor 3278-W-335 utilizes a planetary gear train design that provides high torque capacity and efficiency. The gears are made of high-strength steel and are precision-machined to ensure smooth operation and long life. The unit's oil cooler is integrated into the housing, allowing for efficient cooling and extended component life.

This PTO unit comes with a heavy-duty, multi-plate clutch system that provides reliable engagement and disengagement of the power take-off. The clutch system features a large, friction surface area that can handle high torque loads and is designed to provide long clutch life. The clutch engagement and disengagement is controlled by a lever or pedal, depending on the application.

The Meritor 3278-W-335 is designed to meet or exceed the most stringent emissions standards, including EPA Tier 4 Final and European Stage V regulations. The unit features a sealed, liquid-cooled exhaust gas recirculation (EGR) system that reduces nitrogen oxide emissions. The unit also comes with a selective catalytic reduction (SCR) system that further reduces emissions by converting nitrogen oxides into harmless nitrogen and water.

The Meritor 3278-W-335 is backed by Meritor's industry-leading warranty, which includes a one-year warranty on the entire unit and a three-year warranty on the gear train. The unit is also supported by Meritor's global network of sales and service centers, ensuring that customers have access to expert technical support and replacement parts when they need it.

In summary, the Meritor 3278-W-335 is a heavy-duty, high-performance power take-off unit designed for commercial vehicles and industrial applications. Its robust design, efficient planetary gear train, and heavy-duty clutch system provide maximum power transfer and durability. The unit's ability to meet or exceed the most stringent emissions standards makes it an ideal choice for customers who demand high performance and sustainability. With Meritor's industry-leading warranty and global network of sales and service centers, customers can be confident that they are making a smart investment in a reliable and efficient power take-off unit.

The Meritor 3278-W-335 is a heavy-duty axle assembly designed for commercial vehicles. Here are some pros and cons to help you make an informed decision about purchasing this product.

1. High Load Capacity: The Meritor 3278-W-335 can support a maximum axle load of 32,700 lbs, making it suitable for heavy-duty applications.

2. Durability: Meritor is known for manufacturing high-quality axle assemblies. The 3278-W-335 is designed to withstand the rigors of commercial vehicle use.

3. Customizable: Meritor offers various configurations of this axle assembly, allowing customers to choose the right one for their specific application.

4. Easy Installation: Meritor provides detailed installation instructions, making it relatively easy for mechanics to install this axle assembly.

1. Cost: The Meritor 3278-W-335 is a premium product, and its price reflects its high-performance capabilities.

2. Complexity: Installing this axle assembly may require specialized knowledge and tools, resulting in additional labor costs.

3. Weight: With a weight of over 1,200 lbs, this axle assembly adds significant weight to the vehicle, which could impact fuel efficiency and overall performance.

4. Limited Availability: Due to its heavy-duty nature, the Meritor 3278-W-335 may not be readily available at local auto parts stores, and customers may need to order it from a specialized commercial vehicle parts supplier.

The Meritor 3278-W-335 is a high-performance axle assembly suitable for heavy-duty commercial vehicle applications. Its durability, load capacity, and customizability make it an excellent choice for customers who demand the best. However, its cost, complexity, weight, and limited availability may deter some potential buyers. Ultimately, the decision to purchase the Meritor 3278-W-335 depends on your specific requirements and budget. If you operate a heavy-duty commercial vehicle and need an axle assembly that can handle the load, the Meritor 3278-W-335 is an excellent option. On the other hand, if you have lighter load requirements or a tighter budget, you may want to consider other options.

If you require a heavy-duty axle assembly for your commercial vehicle, the Meritor 3278-W-335 is an excellent choice. Its high load capacity, durability, and customizability make it a top pick in the industry. However, be prepared for the additional cost, complexity, weight, and potential availability challenges that come with this premium product. If you have lighter load requirements or a tighter budget, consider alternative options from Meritor or other manufacturers.

Details:

Shipped with USPS Ground Advantage. Condition is New. MERITOR SPIDER 3278-W-335. Several In Stock.

part #: 3278w335 prices

• $79.95-$95.56

specifications axlpar:

• brand: Meritor
• mpn: 3278-w-335
• part type: Axle Housing
• manufacturer warranty: Yes

returns axlpar:

• policy: No Returns

general axlpar:

• condition: New
• Car Truck Parts Accessories > Transmission Drivetrain > Axle Housings Parts

seller axlpar:

• rating: 100.0%
• city: Knox, Indiana
• # reviews: 971

payments axlpar:

• other
• wallet: Apple-pay
• credit card: Diners-club

offer axlpar:

• quantity: 10
• options: Ship-to-home
• best offers: True
• started: February 9, 2026
• availability: In Stock
• sold: 0

shipping axlpar:

• transit: 3-9 Days
• service: USPS Ground Advantage
• carrier: USPS
• class: Standard
• type: Fixed
• cost: $9.99