The Chelsea 541-NAT-A-XV or 541NATAXV is a rear-mount Power Take-Off from Chelsea's 541 Series, designed specifically for Eaton Fuller transmissions with a Thrushaft opening, including the Advantage and UltraShift Series. The 541 Series uses a Thrushaft installation that requires only three fasteners and eliminates backlash adjustment, making installation faster than conventional PTOs. The cast iron housing and heavy-duty bearings support up to 400 ft-lb of intermittent torque, with output options that include an SAE B pump flange with 7/8 inch-13T spline shaft and a 1410 Series companion flange for driveline applications. The series delivers 56+ HP output and supports continuous operation with a 30% de-rating. Common applications include tow and recovery, aerial devices, dump trucks, and service trucks. Call us to confirm proper fit for your application.
Features
Rear-mount Thrushaft design for Eaton Fuller transmissions including Advantage and UltraShift Series
Three-fastener installation with no backlash adjustment required
Up to 400 ft-lb intermittent torque capacity; continuous operation supported with 30% de-rating
SAE B pump flange output with 7/8 in. - 13T spline shaft, plus 1410 Series companion flange option
56+ HP output power
Air shift, lever shift, and mechanical shift options available within the 541 Series
Tech Specs
- Mounting Type: Rear Mount - Thrushaft
- Transmission Compatibility: Eaton Fuller (including Advantage and UltraShift Series)
- Intermittent Torque Rating: Up to 400 ft-lb (542 Nm)
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 38 HP at 500 RPM; 76 HP at 1000 RPM
- Output Shaft Type: SAE B Pump Flange - 7/8 in. 13-Tooth Spline
- Alternate Output: 1410 Series Companion Flange
- Shift Types Available: Lever, Pneumatic, Mechanical
- Continuous Operation: Yes, with 30% de-rating
- Housing Material: Cast Iron
Additional Information
The Chelsea 541 Series is noted by Parker as an obsolete series, meaning it is no longer in current production. Buyers sourcing 541-NAT-A-XV for fleet maintenance or equipment repair should confirm availability before ordering. Parker documentation associated with this series includes the 541 Series Owner's Manual, 541 Series Parts List (HY25-2541-M1_US), the Chelsea PTO General Information Catalog, Chelsea PTO Stud Kits (HY25-2002-M1_US), and the Chelsea Service Manual (HY25-6541-M1/US). Give us a call if you need help confirming this part fits your transmission configuration.Parts Manual: Chelsea 541 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
