Caterpillar original 238-8091 Common Rail Diesel Fuel Injector Replacement OEM 328-2582, for heavy duty diesel engine application, Compatible with 20R-8058, 387-9427 original new injector
Product Details
Caterpillar 238-8091 diesel fuel injector
,OEM 328-2582 common rail injector
,Heavy duty diesel engine injector
Caterpillar original 238-8091 Common Rail Diesel Fuel Injector Replacement OEM 328-2582, for heavy duty diesel engine application, Compatible with 20R-8058, 387-9427 original new injector
Fuel Type | Diesel |
Condition | Available in new, remanufactured, rebuilt, or exchange type |
Applicable Engine | Primarily designed for Caterpillar C7/C7 Series diesel engines; some aftermarket sources list related compatibility with Caterpillar 3126B and C9 engines, which requires verification via engine serial number, original injector number and equipment configuration |
Injector Type | Diesel fuel injector assembly |
Quality Standard | OE-style replacement |
Packaging | Not specified |
Fuel System | Aftermarket classifications are inconsistent: most sources identify it as HEUI (Hydraulic Electronic Unit Injector) for CAT C7 fuel systems, while a small number classify it as common rail. Exact system type must be confirmed using the original removed injector and engine serial number before purchase |
OE Number | 238-8091 (numeric search format: 2388091) |
Brand | CAT (Caterpillar) |
Cross Number / Universal Number | 10R-4763 (10R4763), 20R-8059 (20R8059), 233-3535, 236-0974 (2360974), 241-3400 (2413400), 263-8218 (2638218), 295-1410 (2951410), 328-2582 (3282582), 387-9428 (3879428); additional marketplace part numbers: 2225958, 2225962, 2313400, 2462343, EX634763; aftermarket brand cross references: PAI 390093X, Interstate-McBee M-2388091, DIPACO D2388091, Alliant Power AP63687. All references are sourced from third-party supplier listings and require verification before ordering |
Vehicle / Equipment Application | Primarily applied for equipment powered by CAT C7 diesel engines; referenced machine models include Caterpillar 140K2, 324D (324D, 324D FM, 324D FM LL, 324D L, 324D LN), 325D (325D, 325D FM, 325D FM LL, 325D L, 325D MH), 326D L, 328D LCR, 329D (329D, 329D L, 329D LN), M325D L MH, M325D MH. All model references are for fitment search only, final compatibility must be confirmed with engine serial number and original injector part number |
Application Type | Diesel engine maintenance, repair, replacement, and rebuild for heavy-duty industrial, construction, mining, agricultural, and fleet equipment aftermarket service programs |
Engineered for professional Caterpillar diesel engine service networks, the 238-8091 (alternately searched as 2388091) is a diesel fuel injector assembly designed to support C7 Series engine maintenance, repair, rebuild, and replacement workflows. It is tailored to the needs of heavy equipment maintenance providers, fleet workshops, engine rebuilders, diesel parts distributors, and mining, construction, and agricultural equipment service teams globally, fitting into both scheduled service programs and emergency breakdown response arrangements.
The unit has a wide range of documented aftermarket cross references, including 10R-4763, 20R-8059, 328-2582, and 387-9428, alongside third-party part numbers from established aftermarket diesel component brands. Due to inconsistent aftermarket classification of its fuel system type (HEUI vs. common rail) and extended compatibility references for 3126B, C9 engines and multiple CAT machine models, all fitment must be verified via engine serial number and the original removed injector before ordering.
Built for heavy-duty operating conditions, the OE-style injector supports precision fuel delivery, stable engine performance, reduced smoke output, and lower misfire risk to enable full engine performance restoration. It is available for order as a single unit or a full engine set of six injectors, with condition options ranging from new to remanufactured, rebuilt, or exchange units to suit varied budget and service program requirements.
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