Skip to product information
12_8b92b311-5372-42b4-b22b-150996fe6b4a - Northline Parts

Fuel Injector for Cat 3114/3116, 320B/322B/322C Excavators – 127-8216

SKU: NLT2T02672
$299.29 In Stock
$299.29
Sale price  $299.29 Regular price 
Ships for free in 2–4 business days.
This fuel injector fits Caterpillar 3114 and 3116 diesel engines and many machines built around that mechanical unit-injector system, including 320B- and 322-series excavators.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model

Applications are grouped below. Equipment can vary by serial number, engine, and production configuration.

Caterpillar Engines 3114; 3116
Caterpillar Excavators 320B, 320B L, 320B N, 320B S; 322B, 322B L, 322B LN; selected 322C/325B applications
Other Cat Equipment Selected loaders, compactors, graders and dozers using the matching 3114/3116 injector arrangement

Product Overview

A worn or damaged injector can contribute to hard starting, uneven combustion, smoke, loss of power, fuel knock, or a dead cylinder. Injector condition should be considered alongside compression, fuel pressure, pump timing, and the rest of the fuel system.

Caterpillar identifies 127-8216 as an 8 mm plunger mechanical fuel injector. It is used across numerous 3114/3116 applications, while related numbers such as 107-7732 and 0R-8682 appear in replacement/interchange references.

Key Features & Performance

  • Metered fuel delivery: Designed for the matching diesel injection system and engine family.
  • Cylinder-level service: Allows the failed injector or injector set to be replaced when testing identifies a fueling problem.
  • Reference-number matching: Injector families can look similar, so the stamped/OE number and engine arrangement are important fitment checks.

Part Numbers & Specifications

  • Primary Part Number: 127-8216
  • Common Cross References: 107-7732; 0R-8682
  • Injector Type: Mechanical unit injector; 8 mm plunger reference

Before You Order

Match the injector number and engine arrangement before installation. Similar-looking 3114/3116 injectors can use different calibration or part-number families.

Frequently Asked Questions

Is this an OEM part?
This is a replacement service part intended to interchange with the reference number(s) and applications listed here. It is not represented as a factory-branded OEM part unless the product packaging itself states otherwise.

How do I confirm fitment?
Match the original part number first, then confirm the machine model, engine, connector or mounting arrangement, and any serial-number break that applies to your equipment.

Customers also purchased