CAT 3406E "57" Injectors

These are the CAT 0R0957 injectors, better known as “57s” — the tried-and-true injectors found in many 550HP 3406E and early C15 Caterpillar engines. If you’re keeping your build close to factory spec or running a mild tune, this is the injector set you want.

The 57s are OEM-spec, reliable, and perfect for a stock or lightly modified 3406E/C15 setup. Momentum Worx supplies these as a matched set of 6, ensuring clean balance and hassle-free installation. Whether you're refreshing an old workhorse or keeping your daily hauler tight, the 57s deliver proven fueling with OEM confidence.

Specs & Highlights:

• Part Numbers: 0R0957 / 10R8501

• Sold as a complete set of 6 injectors

• Ideal for stock or mildly tuned CAT 3406E / C15 engines

• OEM flow spec – excellent driveability, fuel economy, and reliability

• Trusted by builders, fleets, and owner-operators alike

• Cross references below

Cross Reference Numbers Include:
1022014, 0R4526, 10R0957, 20R1929, 1034562, 0R4894, 10R2781, 1095021, 0R9257, 10R8500, 2113023, 1170482, 0R4119, 10R8500R, 2113023X, 1188010, 0R4300, 10R8501, 6I3887, 1189030, 0R4331, 10R8501RFM, 1408993, 10R9257R, EX630957, 1592479, 1597373, 1913003, OR4119, OR4300, OR4331, R10R8501, and more.

Momentum Worx – because stock doesn’t mean slow.