Remanufactured injector, cross-ref 33800-84840, BEBE4D21002. Bench-tested before shipment.
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33800-84840 is supplied as a remanufactured replacement injector. Cross-reference numbers: 33800-84840, BEBE4D21002. Application recorded for this part: Fits Hyundai. The injector sits at the end of the rail and does the final metering work: it receives fuel already at high pressure and decides both how much enters the cylinder and how well atomised it is. That combination governs power, smoke and fuel consumption more directly than almost any other part on the engine. Common indicators are rough or unstable idle, smoke that was not there before, higher fuel consumption on the same duty cycle, diesel knock under load, and in some cases fuel dilution of the engine oil from an injector that is leaking internally. A back-leakage comparison across the set is the cheapest meaningful test: uneven return between cylinders points at the failing unit. Follow it with a cut-out test to confirm which cylinder actually stops contributing. Fit as a matched set rather than singly — one new injector among worn neighbours reproduces the uneven running you set out to cure. New sealing washers every time, clean seats, correct torque, and where applicable, program the injector codes into the ECU once fitted. 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 | 33800-84840 |
| Condition | Remanufactured (not a genuine OEM new part) |
| Cross-reference | 33800-84840, BEBE4D21002 |
| Application | Fits Hyundai |
| 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 |
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