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4W7020 Ca-terpillar Diesel Fuel Injector
Basic Properties
Trading Properties
| Part Number: | 4W7020 | Product Type: | Diesel Fuel Injector |
|---|---|---|---|
| Compatible Engine: | Cat 3408, 3408B/C, 3412, 3412B/C, PM3412 Diesel Engines **Application** | Application: | SR4 Generator Sets, Industrial Machinery, Marine Equipment |
| Supply Option: | Brand New Or Remanufactured | Warranty Period: | 12 Months |
| Highlight | Caterpillar diesel fuel injector,Caterpillar fuel injection system,4W7020 fuel injector |
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4W7020 Ca-terpillar Diesel Fuel Injector
4W7020 is a Ca-terpillar mechanical pencil‑style diesel fuel injector. It delivers fine fuel atomization and stable output under heavy‑load operating conditions, serving as a reliable direct‑replacement component for Ca-terpillar heavy‑duty diesel engines. It fits Ca-terpillar 3408, 3408B/C, 3412, 3412B/C and PM3412 engines, widely used on SR4 generator sets, industrial machinery and marine equipment. Cross‑reference OEM number is 0R8791. Please verify your original part number and engine serial number before purchase.
Every injector is bench-tested for fuel delivery, injection response, sealing and operating stability. Please confirm the original injector number, AA code, engine serial number and model year before ordering.
| No. | Question | Answer |
|---|---|---|
| 1 | Which engines does 4W7020 injector fit? | Cat 3408, 3408B/C, 3412, 3412B/C, PM3412 diesel engines. |
| 2 | What OEM numbers does 4W7020 replace? | 4W7020, 0R8791. |
| 3 | What reman numbers cross over with 4W7020? | 0R8791. |
| 4 | Which machines use the 4W7020 injector? | SR4 generator sets, industrial machinery, marine equipment. |
| 5 | Is 4W7020 injector tested before shipping? | Yes, every unit is 100% bench flow and spray tested before dispatch. |
| 6 | What warranty do you offer for 4W7020? | 12‑month warranty against manufacturing defects. |
| No. | OEM No. | Reman/Interchange | Engine Fitment | Typical Applications |
|---|---|---|---|---|
| 1 | 4W7017 | 0R3421, 8N7007 | Cat 3406, 3406B/C, 3408, 3412, 3306 | Excavator 245/245B/245D, wheel loader 980C/980F, trucks, marine |
| 2 | 4W7018 | 0R3422 | Cat 3406B/C, 3408, 3408B/C, 3412, 3412C | Scrapers 631/637, trucks, excavators, marine |
| 3 | 4W7019 | 0R3536 | Cat 3408, 3408B/C, 3412, 3412B/C | Tractor D9L/D9N/D10N, generator sets, industrial |
| 4 | 4W7020 | 0R8791 | Cat 3408, 3408B/C, 3412, 3412B/C, PM3412 | Generator SR4, industrial, marine |
| 5 | 4W7021 | 0R3421 family (CTP H4W7021) | Cat 3408, 3412 | Trucks, excavators, industrial |
| 6 | 4W7026 | 0R3423 (7W7026) | Cat 3406, 3406B/C, 3412, 3412C | Trucks, excavators, generator sets |
| 7 | 4W7031 | 7W7031 | Cat 3406B, 3406C, 3412C | Excavators, trucks, generator SR4 |
| 8 | 4W7032 | 0R3424, 0R1747, 0R8461 | Cat 3406, 3406B/C, 3412 (3400 series) | Excavators, industrial, trucks |
| 9 | 4W7037 | 0R3425, 9Y3070 | Cat 3406, 3406B/C, 3408, 3412/3412C | Excavator 375/375L, generator SR4 |
| 10 | 7W7038 | 0R4124, 170‑5187 | Cat 3306, 3306B | Trucks, industrial, marine |
| 11 | 7W7045 | 0R3591, 170‑5181, 1705183, 8M1584 | Cat 3306, 3306B, 3400 series | Excavator 973/973C, D7, trucks, marine |
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