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New CAT 1278218 Injector Caterpillar Aftermarket for CAT
- New Injector Replacement suitable for Caterpillar Equipment
- Made to USA Specification
Buy with Confidence: All parts are covered by our warranty
Exact Fit Guarantee
This part is guaranteed to fit your machine.
Wrong Part?
We'll overnight correct part at no cost to you.
Description for 1278218 Fuel Injector
â–¶Specification for 1278218 Fuel Injector
â–¶Exact Fit Guarantee for 1278218 Fuel Injector
â–¶| Models | 35, 45, 55, 3116, 3126, TK371, TK381, 533, 543, TK370 |
|---|---|
| Dimensions | 2.95x9.25x5.71 |
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I have ordered from here a lot over the last couple years. Customer service has been great! Best place to get pins and bushings for your buckets! I will order from here again.
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Placed an order twice and immediately resolved!
Misty reched out immediately because I accidentally placed an order twice. Fantastic service. -
Very nice job
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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. -
Great service at an affordable price to get my machine back going.
Frequently Asked Questions
What is the Caterpillar 1278218 injector used for?
The Caterpillar 1278218 injector is a high-quality aftermarket replacement designed to support reliable fuel delivery in Caterpillar 3116 and 3126 engine applications. It is manufactured to meet or exceed OEM specifications for dependable performance and durability in demanding operating conditions.
What are the benefits of the 1278218 injector?
- Helps support accurate fuel delivery and atomization
- Promotes efficient engine performance
- Manufactured from durable materials for long service life
- Designed to meet or exceed OEM specifications
- Suitable for demanding heavy-duty engine applications
Is the 1278218 injector compatible with multiple Caterpillar engines?
Yes, this injector may fit several Caterpillar applications including 3116, 3126, 35, 45, 55, TK370, TK371, and related models depending on the fuel system configuration. If you are still unsure, reach out to Propel Parts, our team will be happy to help you verify if this part fits your equipment.
Why is replacing worn injectors important?
Replacing worn injectors helps maintain proper fuel spray patterns, support efficient combustion, and reduce unnecessary strain on engine components.
Does the 1278218 injector meet OEM standards?
Yes, this aftermarket replacement is designed to meet or exceed OEM specifications for fit, fuel delivery performance, and dependable durability.
Can a damaged injector affect engine performance?
Yes. A worn or damaged injector may contribute to poor fuel atomization, rough engine operation, reduced fuel efficiency, and increased emissions.
Are related Caterpillar fuel system components available from Propel Parts?
Yes. Propel Parts carries a variety of replacement fuel system parts for Caterpillar equipment. You can also check the Caterpillar 3400 Nozzle 7N9843 for another related fuel system replacement option.
This 1278218 Fuel Injector is compatible with the following models:
35, 45, 55, 3116, 3126, TK371, TK381, 533, 543, TK370 & more...
Shipping
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.
Easy Returns
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.
Warranty
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.
Exact Fit Guarantee®
The right part — or we'll make it right.
Order Normally
Know your part number? Simply place your order.
Not Sure?
Place your order, then send us your serial number before it ships.
We'll verify fit.
We Make It Right
Wrong part? We'll make it right.Fast. At our expense.
1 YEAR UNLIMITED WARRANTY
ORDER BY 3PM EST. EXCL. WEEKEND
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EASY RETURNS & FAST REFUNDS
