Remanufactured fuel injection pump, cross-ref QL1110AN, 0445025662. Bench-tested before shipment.
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QL1110AN is supplied as a remanufactured replacement fuel injection pump. Cross-reference numbers: QL1110AN, 0445025662. Application recorded for this part: (HPFP) 700P CB28. Every injection event depends on this pump producing pressure at exactly the right moment. Because it also carries its own lubrication, poor supply pressure and fuel dilution do disproportionate damage — which is why the supply side should always be checked alongside the pump itself. The pattern is normally cumulative: slightly harder starting, then noticeable power loss, then smoke and unstable idle. Where the drive seal has failed, diesel in the lubricating oil is the warning that should stop you running the engine. Before condemning the pump, rule out the cheap causes: supply restrictions, a weak lift pump, air ingress on the suction side and a blocked filter. Check supply pressure and condition at the pump inlet first, then look at delivery and timing. Key points: align to the timing marks rather than forcing the drive, prime before cranking, renew seals, confirm adequate supply pressure from the lift pump, and bleed the system fully. Skipping any of these is where most comebacks originate. Our rebuild standard: strip to components, clean, measure against wear limits, replace what is worn, machine back to specification where required, then calibrate and bench-test every unit. Delivery, return flow, opening pressure and leakage are recorded, and units outside specification are not dispatched. Test sheets available on request, and every unit carries a 12-month warranty.
| Part number | QL1110AN |
| Condition | Remanufactured (not a genuine OEM new part) |
| Cross-reference | QL1110AN, 0445025662 |
| Application | (HPFP) 700P CB28 |
| Process | Disassembled, cleaned, measured, wear parts replaced, machined to specification |
| Bench test | Delivery, return flow, opening pressure and leakage recorded before dispatch |
| Warranty | 12 months |
Three very different things are sold under similar descriptions. Here is what separates them, and what to ask before you buy.
Read the guide →The pump sets pressure, quantity and timing. Here is how wear shows up, and the checks that separate pump faults from supply faults.
Read the guide →Water, dirt and misfuelling damage common rail components differently. What to check, and why cleaning the system matters as much as replacing parts.
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