The Chelsea 680QQMEX-66XD is a 680 Series Power Take-Off built for medium- to heavy-duty manual transmission applications with an 8-bolt PTO aperture. The 680 Series is a proven fit for Eaton Fuller transmissions and includes a deep mount housing option for Mack applications. The cast iron housing and tapered cone bearings on the output shaft contribute to the series' high torque rating. Output options span SAE A, SAE B, and driveline configurations. The 680 Series carries an intermittent torque rating of up to 375 lb-ft (508 Nm), and continuous operation is supported with a 30% de-rating. Shift is wire/cable or mechanical. Pro Gear and Transmission carries this genuine Chelsea part.
Features
8-Bolt mounting for most manual transmissions with 8-bolt PTO apertures
Intermittent torque rating up to 375 lb-ft (508 Nm); continuous operation with 30% de-rating
Cast iron housing with tapered cone bearings on the output shaft
SAE A, SAE B, ISO 7652 pump flange and driveline output options
Wire/cable and mechanical shift options available
Deep mount housing option compatible with Mack transmission applications
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Wire/Cable, Mechanical
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Intermittent Torque: Up to 375 lb-ft (508 Nm)
- Continuous Operation: Yes, with 30% de-rating
- Output Power: 56+ HP (42+ kW)
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Housing Material: Cast Iron
- Lubricant System: X = No Pressure Lube (per part number)
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Daimler/Detroit
Additional Information
The Chelsea 680 Series is suited for vocational applications including aerial, dump truck, refuse, fire and rescue, snow and ice removal, and blower and product pump installations. The space-saving air shift cover is designed to maximize clearance under the truck. The series offers thirty-two output options, including Chelsea's 360-degree rotatable flange, and four internal speed ratios. The 680QQMEX-66XD or 680QQMEX66XD is also cataloged under part number SP680QQMEX-66XD. Applicable reference documents include the 680 Series Owner's Manual, 680 Series Parts List (HY25-2660-M1_US), and the Chelsea Power Take-Off General Information Catalog.Parts Manual: Chelsea 680 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
