PTO & ACCESSORIES

PTO & Accessories For Peterbilt Trucks

A power take-off (PTO) taps into the truck's transmission or engine to drive auxiliary equipment -- hydraulic pumps for dump bodies, cement mixers, refuse compactors, and a wide range of vocational applications. PTO selection, mounting, and maintenance are critical for reliable operation of the equipment it powers. We carry PTO units, mounting hardware, and accessories for Peterbilt trucks across common transmission configurations.

Frequently asked questions about PTO & accessories

What types of PTO are used on Peterbilt trucks?

The most common PTO type on Peterbilt vocational trucks is the transmission-mounted PTO, which mounts in an opening on the transmission case and is driven by the transmission gears. These are available in side-mount and rear-mount configurations depending on the transmission design. Engine-mounted PTOs are used in some applications where the PTO needs to operate with the vehicle stationary and the clutch engaged. Hydraulic PTOs drive a pump directly; driveshaft PTOs can transmit mechanical power to equipment mounted remotely on the truck or body.

How do I know which PTO is compatible with my Peterbilt's transmission?

PTO compatibility depends on the specific transmission model installed in the truck -- Eaton Fuller, Allison automatic, and other transmissions have different PTO opening sizes (SAE standard openings are classified by size) and gear ratios available. You'll need to identify the transmission model and the available PTO opening location before selecting a PTO unit. The PTO manufacturer's application guide cross-references transmission models to compatible PTO units. Output speed ratio is also a key selection factor -- the PTO output RPM at typical operating engine speeds needs to match the requirements of the hydraulic pump or other driven equipment.

What maintenance does a PTO require on a Peterbilt?

PTO maintenance is often overlooked because PTOs are enclosed in the transmission and out of sight. Key maintenance items include verifying the PTO oil level (most PTOs share transmission fluid or have their own separate fill), inspecting the PTO output shaft seal for leaks, checking shift linkage or air shift cylinder function to ensure clean engagement and disengagement, and listening for unusual noise during operation that could indicate bearing wear. PTOs on trucks that engage and disengage frequently under load wear faster than those used intermittently in light-duty applications.

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