Product Details
Element 0432191253 (Bosch ref 0 432 191 253) operates as a precision-ground P-type multi-orifice atomizer insert within the 191-series DLLA155P sub-family, bespoke-calibrated for Cummins 6BT5.9 P7100 (12-valve 160–215 hp CPL band) and select 6CT8.3 P7100 drivetrains. Rigidly seated in the KDAL59P2 holder nose via M14×1.5 nut and 60° cone, this module leverages a five-hole × ~0.29 mm aperture array at 155° dispersion apex with a VCO-leaning micro-sac (~0.23 mm³) tuned to sustain penetration under P7100's 250+ bar pulse plateau. It upholds invariant crack-pressure equilibrium in the 250–260 bar band (CPL-dependent), perpetuating isotropic plume symmetry across P7100 cam-speed sweeps and exhaust-ambient thermal cycling. Nut hex 17 mm, guide bore Ø6.00 mm, seat angle 60°. Cross-reference lineage: Cummins 3910xxx-class / 3928xxx sub / Bosch 0 432 191 253. Distinct from 131-series (shorter pulse, leaner sac) by +0.03 mm hole diameter, +0.08 mm³ sac, +35 bar baseline-direct swap across families is a calibration error, not a fitment win.
Video Description
Product Parameters
| Part Number | 0432191253 |
| Items |
Fuel Injector |
| Type |
Oil pump, oil nozzle |
| Condition | New |
| Material | 45# steel |
| Compatible Models | DAF BOSCH CF85 XF95 Engine |
| Price | $9.5-$10 |
| Shape | Standard injector shape |
| Working Temp | Adapt to diesel engine normal working temperature |
| Lead Time | 3-10 working days (According to quantity and seasons, the lead time is different) |
| MOQ | 4 PC |
| OEM | Acceptable (customized tag, label, logo) |
| Sample | Available (sent first for quality inspection) |
Our Advantages
Forged from thermally resistant top-grade alloy materials, this precision-calibrated fuel regulation unit delivers steady volumetric fuel supply and homogeneous spray characteristics amid fluctuating pressure profiles and cyclic thermal loads. Each integrated assembly goes through stringent tuning procedures to boost combustion efficiency, resolve sporadic performance deviations upon cold cranking, and curb carbon deposition within cylinder bore interiors. Sophisticated internal flow path configurations lift peak torque figures, cut fuel consumption over each duty cycle, and reduce concentrations of hazardous exhaust constituents. Designed for simple tool-free fitting and reliable field maintenance, its reinforced heavy-duty housing is well suited to cargo transport fleets, civil engineering machinery and stationary power generation equipment. Regular batch quality audits uphold consistent production specifications for all outbound consignments, with specialist supply chain support accessible via officially accredited regional distribution outlets.
FAQ
1.Can 0432191253 drop into a VE-pump 6BT 5.9L that ran 0432131628 (215 bar) without re-shimming?
No. 191-series spring is ~20% stiffer to hold 250 bar; in a VE pump's shorter, lower-amplitude pulse the needle cracks late and seats early-spray window shrinks ~0.4 ms, giving idle haze and 80% load EGT spike. To run 1253 on VE you'd swap spring+shim to VE-spec, effectively rebuilding it into a 1628-class tip. Laser says 1253, combustion says mismatch.
2.Is 0432191253 the same "DLLA155P" as 0432191345, just another suffix?
Same cone label, different duty point. 1345 is 5×0.29 mm at 260 bar (6BT high-output P7100), 1253 is 5×0.29 mm at 250 bar (6BT mid-output P7100) with a marginally smaller sac (~0.21 mm³ vs 1345's ~0.28 mm³). Fit 1253 into a 260 bar CPL → 10 bar soft, late timing, no pattern change. Fit 1345 into a 250 bar CPL → 10 bar stiff, cold-start crank delay. Bench both; don't trust the "DLLA155P" shorthand.
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