CAT 3406E "57" Injectors

Proven Factory Fueling. Perfect Balance. Zero Guesswork.

If you’re staying close to factory spec or running a mild tune on your CAT 3406E or early C15, the legendary 0R0957 “57s” injectors are the gold standard. These injectors came in many 550HP 3406E engines and have earned a reputation as one of Caterpillar’s most reliable, consistent fueling options ever produced.

Momentum Worx supplies these injectors as a matched and balanced set of six, giving you the clean idle, crisp throttle response, smooth fueling, and OEM reliability your truck deserves. Whether you're refreshing a million-mile workhorse or keeping your daily hauler tight, the “57s” deliver dependable performance with none of the drama.

✅ Why Choose CAT 0R0957 “57s”?

• OEM Flow Spec & Factory Calibration
• Ideal for stock or lightly tuned engines looking to maintain driveability, fuel economy, and long-term durability.
• Perfect for 550HP 3406E & Early C15
• A direct, proven match for common factory configurations.
• Matched Set of 6
• Reduced cylinder imbalance, smoother operation, cleaner burn.
• Reliable Under Load
• Trusted by fleets, super trucks, vocational trucks, and long-haul owner-operators.
• Drop-In Fitment
• No modifications needed — install and go.

✅ Fitment

• CAT 3406E (550HP calibrations)
• CAT C15 (early single-turbo, non-ACERT platforms)

✅ Part Numbers

• 0R0957
• 10R8501

✅ Cross Reference Numbers

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.

✅ Why Buy From Momentum Worx?

• High-volume CAT injector seller
• Inventory actually in stock, not “drop shipped”
• Fast shipping, fleet-friendly pricing, and expert support
• Trusted by builders nationwide

Stock doesn’t mean slow” — Momentum Worx