INJECTOR / FUEL PUMP ASSEMBLY
Injector for Caterpillar CAT C7.1 ENGINE 120K GRADER Motor Grader | Also Fits CAT 330GC

Injector for Caterpillar CAT C7.1 ENGINE 120K GRADER Motor Grader | Also Fits CAT 330GC

OEM Part No. 3713974
Compatible With CAT C7.1 ENGINE 120K GRADER / CAT 330GC
Availability ✓ In Stock
Injector Cat C7.1 Engine 120K Grader / Cat 330Gc – PRECISION COMBUSTION FUEL DELIVERY UNIT | OEM: 3713974
✓ Genuine Quality ✓ Pan India Shipping ✓ Expert Support

Product Specifications

BrandCompatible Model(s)OEM Part NumberPart TypeAvailability
Caterpillar (CAT)CAT C7.1 ENGINE 120K GRADER / CAT 330GC3713974INJECTOR / FUEL PUMP ASSEMBLY✓ In Stock

Product Description

OEM Part Numbers: 3713974

Machine ModelTypePart Number
CAT C7.1 ENGINE 120K GRADERMotor Grader3713974
CAT 330GCExcavator3713974

The 3713974 injector cat c7.1 engine 120k grader / cat 330gc is a high-precision fuel injection component for the CAT C7.1 ENGINE 120K GRADER / CAT 330GC, delivering accurately metered fuel into the combustion chamber at the exact timing required for efficient engine operation. Injector failure results in poor fuel atomisation, misfires, increased fuel consumption, and excessive exhaust emissions — all signs of incomplete combustion that worsen rapidly if left unaddressed. Engineered to OEM standard 3713974 for precise fitment on the CAT C7.1 ENGINE 120K GRADER / CAT 330GC and immediate restoration of combustion accuracy.

Key Features:

  • Precise Fuel Atomisation: Delivers correctly metered fuel at the right pressure and spray pattern for complete, efficient combustion.
  • OEM Specification: Manufactured to reference 3713974 for direct fitment on the CAT C7.1 ENGINE 120K GRADER / CAT 330GC with no calibration issues.
  • Emissions and Economy: Restores proper combustion to reduce exhaust emissions and fuel consumption to OEM levels.

The 3713974 injector cat c7.1 engine 120k grader / cat 330gc delivers accurate, high-pressure fuel injection and efficient combustion on the CAT C7.1 ENGINE 120K GRADER / CAT 330GC.

What Does This Injector / Fuel Pump Assembly Do?

Delivers a precisely metered, high-pressure fuel spray directly into the combustion chamber at the timing commanded by the ECU. Correct injector operation is critical for power output, fuel efficiency, and meeting emissions requirements.

Possible Injector / Fuel Pump Assembly Problem Symptoms

If your machine is showing any of the following, a faulty injector / fuel pump assembly may be the cause:

  • Black or white smoke from the exhaust, especially under load
  • Rough or uneven idling with noticeable engine vibration
  • Significant drop in fuel efficiency on comparable tasks
  • Hard starting or engine knocking at low RPM

Why Buy From GCO Products?

Gautam & Company has been supplying earthmoving machinery spare parts since 1999. Here is why contractors, fleet operators, and dealers across India trust us.

Supplying Since 1999

Over 27 years of experience in the earthmoving parts industry.

Technical Support

Our team helps you confirm the right part before you order.

GST Billing

Proper GST invoices on every order for your accounting needs.

Pan-India Supply

Fast dispatch from Jalandhar to all states across India.

Bulk & Wholesale

Volume pricing available for fleet owners, dealers and distributors.

OEM & Aftermarket

Both genuine OEM and quality aftermarket options available.

How to Confirm Compatibility

To ensure this part is the correct fit for your machine, have the following ready when you contact us:

  • 1
    Machine Model & Year

    E.g. Komatsu PC200-8, CAT 320D, JCB JS205 — include the model suffix if known.

  • 2
    Machine Serial Number

    Found on the machine's chassis plate. Helps confirm the exact production variant.

  • 3
    OEM Part Number

    From your parts manual, the old part itself, or the machine's service documentation.

Not sure if this part fits your machine?

WhatsApp Us to Confirm Typically replies within a few hours

Disclaimer: This is an aftermarket replacement part supplied by GCO Products (Gautam & Company) and is not manufactured by, affiliated with, or endorsed by the original equipment manufacturer (OEM). All brand names, model numbers, and OEM part numbers referenced on this page are used solely for the purpose of identifying compatibility and describing the application of this part. All trademarks, registered marks, and brand identifiers remain the exclusive property of their respective owners. GCO Products claims no association with, sponsorship by, or endorsement by any OEM brand mentioned herein.