The CT660 was Cat's set-back-axle vocational truck (introduced 2011), the CT680 added a set-forward axle configuration for bridge-law states, and the CT681 extended the range further. All were built as vocational chassis — meaning the specific hydraulic pump on your truck depends on what attachment or body was fitted (tipper, crane, mixer) by the upfitter, not a single standard Caterpillar hydraulic system. Confirming your exact PTO and attachment configuration matters before ordering.
Confirm Your Configuration First
Because CT660/CT680/CT681 trucks were built as vocational chassis fitted with various third-party bodies (tipper, crane, mixer), the hydraulic pump brand and spec varies by what was installed. WhatsApp us your truck's model, the attachment type (tipper/crane/mixer), and a photo of the pump's nameplate if visible, and we'll confirm the correct match.
Why CT660/CT680/CT681 Owners Choose PumpGrid
Genuine Alternative for a Discontinued Line
New parts through Cat's on-highway channel aren't available since the 2016 exit — refurbishment of your existing pump is the realistic path.
Keeps a Working Asset Running
A refurbished pump extends useful life at a fraction of replacement cost.
Documented Test Results
Written test report supports fleet maintenance records.
3-Month Warranty
Replacement, not repair, if a refurbishment defect appears within warranty.