Remanufactured fuel injection pump, cross-ref 1111300tar, R9044A128A, R9044Z120A. Bench-tested before shipment.
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1111300tar is supplied as a remanufactured replacement fuel injection pump. Cross-reference numbers: 1111300tar, R9044A128A, R9044Z120A. Supply pressure, timing and delivery quantity are all set here. Failures tend to progress gradually — a little more smoke, slightly harder starting when hot, slowly rising consumption — which is why they are often attributed to the injectors before the pump is checked. Typical indicators are progressively harder starting, particularly when hot, reduced power, smoke under load, erratic idle, and fuel dilution in the sump — the last one should always be investigated immediately. Diagnose the supply side before blaming the pump. Restricted filters, a tired lift pump or air being drawn into the suction line will produce symptoms almost identical to internal pump wear, and are far cheaper to resolve. Fitting notes: timing is everything here. Set the pump against the engine's timing marks rather than forcing anything, prime thoroughly before cranking, and check that the lift pump is delivering adequate supply pressure. Also replace the mounting seal and confirm there is no air left in the system before the first start. How we build it: the unit is fully disassembled, cleaned and measured, not simply resealed. Wear items — seals, springs, and where clearance is out of specification the plunger and barrel or nozzle assemblies — are replaced rather than reused. Sealing faces and bores are re-machined back to original clearances, then the unit is calibrated and run on a bench with delivery, return flow, opening pressure and leakage recorded. Anything outside specification does not ship. Test sheets for your specific units are available on request. Covered by a 12-month warranty.
| Part number | 1111300tar |
| Condition | Remanufactured (not a genuine OEM new part) |
| Cross-reference | 1111300tar, R9044A128A, R9044Z120A |
| 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.
Read the guide →
