The Chelsea 660GQAHX-V3GK or 660GQAHXV3GK is a 660 Series Power Take-Off designed for most popular 6-bolt manual transmissions in medium to heavy-duty applications. The 660 Series features a cast iron housing with tapered cone bearings on the output shaft, delivering an intermittent torque capacity up to 375 lb-ft (508 Nm). Shift options include wire/cable and mechanical actuation. Compatible transmission manufacturers include Eaton/Fuller, Volvo/Mack, and others. Output options span SAE A, SAE B, and ISO 7652 pump flanges, as well as driveline configurations. The space-saving air shift cover is designed to maximize clearance under the truck. Call us to confirm proper fit for your specific transmission and application.
Features
Chelsea 660 Series, 6-bolt mounting for most popular manual transmissions
Cast iron housing with tapered cone bearings on the output shaft
Intermittent torque capacity up to 375 lb-ft (508 Nm)
Shift options: wire/cable or mechanical
Compatible with Eaton/Fuller, Volvo/Mack, and other transmission manufacturers
Output options include SAE A, SAE B, ISO 7652 pump flanges, and driveline
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Wire/Cable, Mechanical
- Intermittent Torque Capacity: Up to 375 lb-ft (508 Nm)
- Output Type: SAE A Pump Flange, SAE B Pump Flange, ISO 7652 Pump Flange, Driveline
- Continuous Operation: Yes, with 30% de-rating
- Output Shaft Options: Round Shaft (1-1/4 in. - 5/16 in. Key), SAE A (5/8 in. - 9T) Pump Spline, 3/4 in. - 11T Pump Spline, SAE BB (1 in. - 15T) Pump Spline, SAE B (7/8 in. - 13T) Pump Spline, SAE C (1-1/4 in. - 14T) Pump Spline, 1410 Companion Flange
- Shaft Power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Other
- Housing Material: Cast Iron
- Dimensions (H x W x L): 8 in. x 10 in. x 14 in.
Additional Information
The Chelsea 660 Series is suited for aerial devices, service trucks, dump trucks, blower and product pumps, and snow and ice removal equipment. Four internal speed ratios and twenty-six output options, including Chelsea's 360-degree rotatable flange, provide flexibility for varied pump mounting requirements. Tapered bearings on the input shaft replace needle bearings for greater load-bearing capability. Part number 660GQAHX-V3GK or 660GQAHXV3GK is also referenced as SP660GQAHX-V3GK in some catalog listings. NMFC classification 128520 applies (Hydraulic PTOs, Pumps, Motors). Contact Pro Gear and Transmission to confirm this unit matches your transmission and output requirements.Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
