New 1278213 (1018673) Injector G Replacement suitable for CAT
- New Injector G Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 1278213 Fuel Injector
â–¶Specification for 1278213 Fuel Injector
â–¶Exact Fit Guarantee for 1278213 Fuel Injector
â–¶| Models | 3116 |
|---|---|
| Dimensions | 2.95x9.25x5.71 |
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Excelente servicio rapido, responsable y confiable
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Great customer service
Anthony was very professional and on top of what needed to be done to get my order verified and moving forward. -
Propel Parts provided quality parts for my Caterpillar needs at a very fair price. Shipping to my international location was very fast. took about a week for the parts to get here. Seller is also responsive with my inquiry.
Thanks again -
Great pricing and fast shipping!
I'll admit that I was skeptical of propel parts, but they are an honest site and came through with the order. I was skeptical because I've never ordered heavy machinery parts, and didn't know who to trust. The parts that I ordered showed in stock, but after checking with their vendor, they only had half of the order in stock. I was notified the day after the order, and most of the parts arrived in a few days. There was one part that was not shipped putz but I was able to talk with who I assumed is the owner who rectified the situation and had the part overnighted to me.
I will say that communication speed could use a little work, but they will eventually get back with you. -
Having issue running my credit card, Steven was more than helpful to send me a payment link to complete my transaction!
Frequently Asked Questions
What is the 1278213 fuel-system component used for?
The 1278213 meters and delivers fuel into the combustion chamber with the correct spray pattern and pressure. Precise delivery supports clean combustion and power.
How do I install the 1278213 fuel-system component?
Fitting the 1278213 correctly comes down to clean surfaces and following the manual sequence. Work through these steps:
- Shut down, cool, and relieve fuel-system pressure safely
- Remove the component and clean the seat and bore
- Inspect tip, seat, and sealing surfaces for wear or carbon
- Fit the 1278213 with new seals and correct orientation
- Torque to spec, bleed the system, and check for leaks
Which Caterpillar machines is the 1278213 compatible with?
The 1278213 is matched to particular Caterpillar equipment, so always verify the application against your parts reference before purchasing. Or reach out to Propel Parts for help verifying fitment.
Does the 1278213 fuel-system component meet performance standards?
Yes. Propel Parts supplies the 1278213 as a premium aftermarket part made to meet OEM specifications. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications so you can fit it with confidence.
How often should the 1278213 be replaced?
Replace the 1278213 whenever the assembly it serves is overhauled, or any time it shows wear, damage, or corrosion. Following the intervals in your service manual is the best guide.
What are the signs of a worn or failing 1278213 fuel-system component?
When the 1278213 reaches the end of its service life, the symptoms tend to show up first as performance or wear issues. Look for:
- Rough running, misfire, or hard starting
- Smoke or poor fuel economy
- Knocking or uneven power
- Fuel leaks or carbon build-up on inspection
Why is the 1278213 important, and what related parts work with it?
Replacing the 1278213 when needed keeps the system within its designed clearances and loads, which extends the life of the surrounding parts and supports dependable performance. Related hardware on our site includes 5P3193 Seal Lip Type and 07020-00000 Fitting Grease.
This 1278213 Fuel Injector is compatible with the following models:
3116 & more...

We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.
We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.
Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.

Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.

Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.
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