All units are compatible with factory fuel systems and come ready for installation or integration with existing rebuilds.

What Are Injector Delivery Valves?

An injector delivery valve regulates and stabilizes fuel pressure between the injection pump and the injector. Integrated into many modern injectors or installed as standalone components, the delivery valve:

• Prevents fuel backflow from the injector line

• Controls injection end timing

• Maintains proper line pressure and sharp injection cut-off

• Minimizes injector noise and dribble

• Ensures consistent engine power and emissions performance

In Cummins and Mack platforms, the valve is often an internal part of the fuel injector assembly itself.

What Diesel Engines Use These Delivery Valves?

Goldfarb injector delivery valves cover various diesel engine manufacturers and applications:

1. Cummins ISX / QSX 15.0L

• 1997–2010 Signature 600 Series

• HPI fuel injection systems

• Units include rebuilt and new injectors with integrated delivery valves.

2. Mack Engines

• 4-valve injector configurations

• KBAL137P14 / KBAL137P26 part numbers

• Used in Mack MP7, MP8 platforms (mechanical or hybrid injectors)

3. AFA Diesel Engines

• Specialized injector check valve discs (e.g., A3030970N)

• For pumps and injector control in industrial equipment

All delivery valves meet OEM fitment and functional standards, even in legacy or high-mileage applications.

What Types of Injector Delivery Valves Are Offered?

Goldfarb & Associates provides multiple product types depending on customer requirements:

• New Injectors with Delivery Valve – Unused, OEM-grade units

• Rebuilt Injectors with Internal Valve – Professionally restored with new internals and reseated valves

• Standalone Delivery Valves – For older-style injector bodies or pump-mounted configurations

• Check Valve Discs – For inline injection pump repair or calibration

Each product is inspected for sealing surface finish, spring resistance, and valve seat wear.

How to Choose the Right Injector Delivery Valve

Selecting the correct delivery valve or injector unit requires matching the valve to your engine and pump. Be prepared with:

• OEM Part Number (e.g., 4954434, KBAL137P14, A3030970N)

• Engine type and year (e.g., Cummins ISX 2004, Mack MP8 2008)

• Injection system type (HPI, HEUI, unit injector)

• Application (on-highway, industrial, marine)

If your part number is unavailable, send us photos, serial numbers, or application details. We'll match it from our inventory of over 20,000 diesel components.

What Are the Benefits of Rebuilt Injector Delivery Valves?

Rebuilt injectors with delivery valves from Goldfarb offer:

• Cost savings vs. new units

• New OEM internals, including springs, seals, and discs

• Professionally reseated valve seats

• Full pressure and leak testing

• OEM-level performance at a reduced price

Our rebuilt units for Cummins and Mack are ideal for fleet maintenance, emissions compliance, and long-haul engine restoration.

Our Easy Shipping & Delivery Process

Goldfarb ensures fast and secure delivery for all injector-related parts:

• Same-day shipping for in-stock orders before 3:30 PM EST (Mon–Fri)

• UPS, FedEx, and USPS domestic options

• International shipping is available to over 50 countries

• Secure packaging for delicate fuel system components

• Rockville, MD pickup for local buyers

We require a verified physical address. PO Boxes are not supported for shipping injector components.

Why Buy Injector Delivery Valves from Goldfarb & Associates?

Goldfarb & Associates stands out in the diesel parts industry with:

• 25+ years of diesel parts sourcing and distribution

• OEM-tested injectors and delivery valves from Cummins, Mack, Bosch, and Denso

• Reputable quality checks, rebuild standards, and customer satisfaction policies

• One of the most extensive inventories of injector delivery valves in North America

• Real-time support from diesel fuel system experts via Live Chat, phone, and email

• Legacy support for hard-to-find injector parts from discontinued engine series

Whether you're maintaining a high-mileage Cummins ISX or need a rare check valve disc for an AFA unit, we deliver unmatched expertise and availability.

Frequently Asked Questions

Are your injector delivery valves genuine OEM?

Yes. We carry OEM-new and rebuilt units using original manufacturer components and standards.

Can I install these valves or injectors myself?

For Cummins and Mack injectors, professional installation is highly recommended due to the specific torque specifications and calibration requirements.

Do you offer delivery valve internals separately?

No. We sell delivery valves as part of complete assemblies or tested units to ensure performance and warranty compliance.

What warranty is available for rebuilt delivery valves?

Our satisfaction guarantee backs all rebuilt components. Extended terms are available for certified rebuilders and volume buyers.

Do you accept injector cores for credit?

Yes. We purchase rebuildable injector cores. Contact our team for core evaluation and pricing.

Order Injector Delivery Valves for Cummins, Mack & More

From complete injector assemblies with integrated valves to specialized check valve discs, Goldfarb & Associates provides the injector delivery components that diesel professionals trust. Backed by a massive inventory, fast shipping, and knowledgeable support, we make injector system maintenance easy and reliable. Shop now or contact our team to get the exact valve or injector your system requires.