Fuel Injectors

The technicians at West Coast Fuel Injection & Turbo Ltd are experts at servicing Gas and Diesel Injectors.

We offer fast and courteous service at competitive prices and pride ourselves in providing all of our customers with the highest quality products and the best technical support in the business.

We stock a wide range of exchange fuel injectors for your popular Dodge, Ford and GMC diesels providing instant repair ability for our customers and dealers. Exchange injectors are also available for many other engines. Give us an opportunity to take care of your fuel problems - instantly.

If you are in search of a particular part or services related to fuel injectors, please contact us at any of the below listed numbers and we will respond to your enquiry promptly and professionally

Our 7 step Injector service includes:

Leak testing
Spray Pattern
Flow Volume measurement
Ultrasonic cleaning
New filter baskets
Pintle Caps replacement
All new seals & oil-ring replacement

We can clean and service all injectors made by :

Bosch
Luca
Weber
Nippon
Denso
Siemens
Jecs
Nikki
Rochester
Bendix

Precision electronic fuel injectors in cars are very durable with proper maintenance but they are susceptible to getting blocked up with varnish, lacquers, debris and hardened build ups.

Blocked injectors can cause Starting Problems, Poor Fuel Economy, Excessive Exhaust Emissions, Idling problems, Lack of Performance, Poor Drive ability, Gumming or Sticking of the inlet valves, Lacquering of the Lambda Sensor, Clogging or Failure of the Catalyst Exhaust.

Poor performance caused by these hardened deposits cannot be corrected by adding harsh chemicals or pressure onto the cars cleaning system. Ultrasonic cleaning tanks can clean your injector so they perform at 100% again.

By getting your injector cleaned by us, you can save hundreds of dollars, correct drive-ability, restore power and performance, increase fuel mileage, reduce exhaust emissions, and increase engine life.

Why Our Injector Rebuilds Last Longer

Over the years, we’ve found that 99% of injector failures start at the nozzle. That’s why we only use high-quality OEM nozzles during the rebuild process. While the nozzle is the main cost in injector rebuilding, it is also the most critical component for longevity and performance.

We proudly offer new Stanadyne pencil nozzle assemblies, known for their superior design and durability.

When you rely on Diesel Specialists of WCT, you’re choosing expertise, accuracy, and long-lasting reliability for your diesel fuel systems.

Fuel Injectors – Mechanical Rebuilding

Since 1998, Diesel Specialists of WCT has been a trusted leader in diesel injector rebuilding. Our process includes:

Complete disassembly
Ultrasonic cleaning & precision inspection
Replacement of worn and faulty components
OEM-spec calibration and testing

As an authorized service provider for multiple fuel injection manufacturers, we ensure every injector is restored to factory performance—often performing better than new.

Diesel Specialists of WCT

Your One-Stop Diesel Fuel Injection & Pump Repair Experts
Serving Northeast Wisconsin and Michigan’s Upper Peninsula

Diesel Specialists of Green Bay is a full-service diesel fuel injection and pump repair facility. With decades of industry experience, we provide comprehensive solutions for diesel engines across commercial, industrial, agricultural, marine, and automotive applications. Our certified technicians use factory tooling, OEM technology, and advanced diagnostic equipment—ensuring every job is done right the first time.

Complete Service for All Diesel Injector Types

At our facility, we specialize in the diagnosis, repair, rebuilding, and testing of every major diesel injector system used in automotive, commercial, industrial, marine, and agricultural engines. With advanced OEM equipment and certified technicians, we ensure every injector is restored to factory performance.

Below is a full list of injector systems we repair and service.

1. Mechanical Diesel Injectors

Reliable, old-school mechanical injectors commonly found in earlier trucks, tractors, construction equipment, and industrial engines.

We service:

Inline Mechanical Injectors
Rotary / VE Pump Injectors (Bosch, CAV/Delphi, Stanadyne)
Mechanical Pencil Injectors (Stanadyne pencil type)
Mechanical Unit Injectors (MUI) used in Detroit Diesel 2-stroke engines

Services include:
✔ Complete teardown & cleaning
✔ Nozzle replacement (OEM only)
✔ Pop testing & calibration
✔ Leak testing
✔ Rebuilding to manufacturer spec

2. Electronic Unit Injectors (EUI)

High-pressure injectors activated electronically while pressurized mechanically—common in heavy-duty trucks.

We service EUI systems from:

Caterpillar (CAT)
Detroit Diesel
Navistar / International

Services:
✔ Solenoid testing
✔ Electrical diagnostics
✔ Internal component replacement
✔ Flow testing
✔ Full OEM calibration

3. HEUI Injectors (Hydraulic Electronic Unit Injectors)

Injectors driven by high-pressure engine oil—complex and highly precise systems.

Brands we repair:

CAT HEUI
Ford Powerstroke (7.3L, 6.0L)
Navistar International
Siemens HEUI systems

Services:
✔ Spool valve testing
✔ O-rings & seals
✔ Internal wear repair
✔ High-pressure oil system diagnostics
✔ OEM-spec bench testing

4. Common Rail Injectors (CRI)

The most modern and advanced injector system—high pressure, high efficiency, and extremely precise.

We service:

Bosch common rail
Denso common rail
Delphi common rail
Siemens / Continental VDO
Piezoelectric Common Rail Injectors
Solenoid Common Rail Injectors

Services:
✔ Ultrasonic cleaning
✔ Pintle/nozzle replacement
✔ Solenoid/piezo stack testing
✔ Leak down test
✔ High-pressure bench calibration
✔ Coding (IMA, QR, C2I, etc.) where required

5. Unit Pump Systems (UPS / PLD)

Individual high-pressure pump + electronically controlled injector.
Used in:

Mercedes-Benz
MAN
MTU industrial engines

Services:
✔ Pump section repair
✔ Electronic control testing
✔ Precise calibration & timing adjustment

6. Pump-Line-Nozzle (PLN) Injectors

Traditional heavy-duty injector systems used in:

Cummins
CAT
John Deere
Komatsu
Older industrial & agricultural engines

Services:
✔ Mechanical inspection
✔ Nozzle refurbishment
✔ Pressure setting & pop testing
✔ Full mechanical rebuilds

Why Customers Trust Our Injector Services

✔ OEM-certified testing equipment
✔ Only genuine nozzles & components
✔ Detailed test reports with every injector
✔ Fast turnaround time
✔ Warranty on rebuilt injectors
✔ Decades of specialized diesel experience