Injector for Caterpillar CAT 120 3306 D6G ENGINE N Excavator | Also Fits M
Product Specifications
| Brand | Compatible Model(s) | OEM Part Number | Part Type | Availability |
|---|---|---|---|---|
| Caterpillar (CAT) | CAT 120 3306 D6G ENGINE N/M | 7W7038 | INJECTOR / FUEL PUMP ASSEMBLY | ✓ In Stock |
Product Description
OEM Part Numbers: 7W7038
| Machine Model | Type | Part Number |
|---|---|---|
| CAT 120 3306 D6G ENGINE N | Excavator | 7W7038 |
| M | 7W7038 |
Designed for the CAT 120 3306 D6G ENGINE N/M, the 7W7038 injector nozzle cat 120 3306 d6g engine n/m delivers metered fuel at the correct pressure and timing for efficient combustion — critical for engine power, economy, and emissions compliance. A worn or clogged injector causes incomplete combustion, leading to power loss, excessive smoke, high fuel consumption, and long-term engine damage. Manufactured to OEM reference 7W7038 for accurate installation on the CAT 120 3306 D6G ENGINE N/M with correct spray pattern and fuel delivery restored.
Key Features:
- Complete Combustion: Ensures full fuel burn in every cycle for maximum power output and minimal exhaust emissions.
- OEM Grade Fitment: Built to reference 7W7038 for compatible, accurate installation on the CAT 120 3306 D6G ENGINE N/M.
- Fuel Efficiency Recovery: Restores OEM fuel consumption rates by eliminating incomplete combustion from worn injection components.
The 7W7038 injector nozzle cat 120 3306 d6g engine n/m is a precision injection component for restoring full combustion efficiency and engine performance on the CAT 120 3306 D6G ENGINE N/M.
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.
Over 27 years of experience in the earthmoving parts industry.
Our team helps you confirm the right part before you order.
Proper GST invoices on every order for your accounting needs.
Fast dispatch from Jalandhar to all states across India.
Volume pricing available for fleet owners, dealers and distributors.
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:
- 1Machine Model & Year
E.g. Komatsu PC200-8, CAT 320D, JCB JS205 — include the model suffix if known.
- 2Machine Serial Number
Found on the machine's chassis plate. Helps confirm the exact production variant.
- 3OEM 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 hoursDisclaimer: 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.
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