Caterpillar original Diesel Fuel Injector 10R-1258 for C10 C11 C12 C13 Engines, Replacement for OEM Components, Cross Reference 212-3468, Construction Machinery Parts original new injector

Tailored for B2B heavy-duty diesel parts procurement, the Cat® 10R-1258 is a genuine Cat Reman fuel injector designed for Caterpillar C10, C11, C12, and C13 MEUI engine platforms. Listed officially on the Cat Parts Store as a remanufactured injection component, it matches OE new part number 212-3468 (alternate format: 2123468), with official listed dimensions of 14.8 inches in length and 3.0 inches in height. It provides a direct replacement solution for engine service, overhaul, and rebuild use across multiple industrial sectors.

This injector supports a wide range of on- and off-highway equipment, including heavy-duty trucks, highway tractors, dump trucks, concrete mixers, generator sets, marine engines, SBF214 and SUF557 pumper units, construction, mining, oilfield, and agricultural machinery, plus rail and industrial power systems. It is routinely sourced to address common diesel engine issues such as hard starting, rough idle, injector knock, high fuel consumption, abnormal exhaust smoke, cylinder imbalance, low power, poor acceleration, and fuel dilution.

Per Caterpillar official guidance, all fitment must be verified via engine serial number, arrangement number, original injector part number, and control calibration before purchase, as general compatibility indicators do not guarantee universal fit. Related cross-reference numbers require professional validation, and 249-0709 is intended for C15 engines, not direct C13 replacement. This component is commonly specified by fleet operators, repair shops, diesel rebuilders, and parts distributors serving global heavy equipment markets.