Bosch OEM Remanufactured Fuel Pump Assembly – Navistar MaxxForce 11 / 13 (0986437506 / 3005275C1)

For workshop operators and heavy equipment parts suppliers across African and Southeast Asian markets, the 0986437506 high-pressure fuel pump – also listed under 3005275C1 – represents a direct, remanufactured drop-in solution for the Navistar MaxxForce 11.0L and 13.0L diesel powerplants. This Bosch-origin unit restores the fuel delivery backbone of International ProStar, TranStar, and WorkStar trucks that are increasingly prevalent in mining, logistics, and construction fleets outside North America. Rather than forcing customers into costly dealer-only channels, this remanufactured assembly delivers OEM-grade hydraulic performance at a fraction of new-equipment pricing, making it a practical inventory choice for distributors serving regions where service lead times and parts availability directly impact fleet uptime.

Physical identification starts with the Bosch casting and the stamped OEM numbers. This unit carries primary cross-reference 0986437506 (Bosch service number) and Navistar chassis-level part 3005275C1, with additional interchangeability covering 0445020126, 3007641C91, 5010750R9, and 4213155. These numbers appear on the pump housing and must match the existing unit before ordering. The assembly includes the integral fuel pressure control valve (FPCV) and internal metering components, fully calibrated to Bosch factory specifications. For workshops handling MaxxForce engines, confirming these numeric identifiers against the vehicle's ECM calibration level ensures plug-and-play installation without reflashing or adapter kits.

This pump serves the Navistar MaxxForce 11 (11.0L displacement) and MaxxForce 13 (12.9L) engines, specifically EPA 2010-compliant and later HDOBD variants that dominate the used truck import channels into Nigeria, Kenya, South Africa, Indonesia, and Vietnam. These engines operate under severe thermal and dust loads in earthmoving, bulk haulage, and off-highway roles. The pump's ability to sustain rail pressure up to 2,200 bar directly affects combustion efficiency, which translates to tangible fuel savings per tonne-kilometer – a critical metric for fleet accountants in emerging economies. Distributors stocking this SKU cover a wide service base: International 9900i, ProStar, TranStar, WorkStar, and certain IC Bus chassis fitted with the same engine family.

Installation success in remote workshops depends less on sophisticated software and more on disciplined mechanical procedures. The pump mounts to the rear gear train and requires precise alignment of the drive gear – misalignment here introduces timing errors that manifest as hard starting or white smoke on cold mornings. The fuel inlet line must deliver unrestricted flow; any restriction below the factory minimum triggers cavitation, which erodes the pump head internally within hours of run time. Workshops must replace all high-pressure connection seals and apply correct torque to the banjo bolts (specifications available in the MaxxForce service manual). Priming the system requires manually bleeding air at the filter head and then cranking the engine in 15-second intervals – without forcing the ECM to cycle the FPCV via diagnostic tools, the pump may refuse to build initial rail pressure. For most African and Southeast Asian shops, a thorough visual inspection of the gear teeth and front housing bore is non-negotiable before final fitment.

The decision to fit a remanufactured Bosch pump instead of a new OEM unit or a non-genuine copy rests on three operational facts. First, the common-rail system relies on micron-level clearances between the plunger and barrel; aftermarket copies rarely hold these tolerances beyond 500 running hours. Second, a worn pump forces the pressure limiting valve (PLV) to cycle open repeatedly, overheating the fuel and degrading injector nozzles – a cascade that multiplies repair costs by four to six times. Third, Bosch's remanufacturing process replaces all wear components (bearings, seals, plunger assemblies) and dynamically tests each unit on production-grade test benches, delivering a product that matches new-pump performance but costs roughly 40–50% less. For parts wholesalers in Mombasa, Lagos, or Jakarta, this pump offers a high-turnover line item that solves the chronic complaint of "loss of power under load" without exposing customers to the risks of untested salvage-yard pulls.

Q1: What physical checks can our workshop perform to confirm this pump fits the truck before uninstalling the old one?
A: Read the six-digit Bosch number stamped on the side flange (look for 0986437506) and the Navistar tag (3005275C1). Also verify your engine serial number prefix – MaxxForce 11 uses prefix "MAXX11", MaxxForce 13 uses "MAXX13" – and confirm the fuel rail has the Bosch-style pressure sensor (three-wire connector). If those match, the pump will physically bolt on.

Q2: How does this remanufactured pump behave in high-ambient-temperature environments common in our region?
A: The Bosch calibration accounts for fuel viscosity variation up to 60°C fuel temperature. However, the pump's internal metering relies on return fuel flow for cooling; ensure your return lines are not restricted and the fuel cooler (if equipped) is functional. In sustained 45°C+ ambient, use a fuel additive with lubricity improver to protect the plunger surfaces.

Q3: What fault codes typically disappear after replacing the pump on a MaxxForce 13?
A: Codes 2246 (Fuel Rail Pressure – above/below desired), 2335 (Unable to build pressure during cranking), and 2371 (Fuel pressure above normal) are the most frequent ones resolved. If your dashboard shows derate or "check engine" accompanied by sluggish acceleration, this pump is the usual fix.

Q4: Can this pump be installed without using an electronic diagnostic scanner?
A: Yes, but with a trade-off. Without a scanner to command the FPCV open during priming, you must manually crank the engine in 15-second bursts with the fuel shutoff valve open, allowing air to escape through the injector return lines. Expect 6–8 cranking cycles before stable idle. A scanner shortens this to under two minutes and prevents starter overheating.

Q5: What is the typical service life expectancy for this reman unit under heavy off-road use?
A: Under normal maintenance (fuel filters changed every 500 hours, using API CJ-4 or CK-4 oil), expect 8,000 to 10,000 operating hours. Severe dust or water contamination cuts that figure sharply – always pair this pump with a high-efficiency primary filter (10-micron or better) ahead of the chassis-mounted fuel/water separator.

Q6: Why does the price of this remanufactured pump vary among suppliers in our region?
A: Variations usually reflect differences in core quality, testing coverage, and warranty terms. Bosch-licensed remanufacturers use new OEM plunger/barrel sets and test every unit; uncertified rebuilders often reuse worn internal parts and skip dynamic balancing. This listing carries Bosch-spec components and a 12-month exchange warranty against manufacturing defects.

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