Need help identifying your valve? Contact us with your engine or pump number for cross-reference matching.

Understand Why Zexel Delivery Valves Are Critical to Diesel Efficiency

Zexel delivery valves are designed to maintain injector pressure timing, reduce fuel dribble, and support consistent combustion in diesel engines. Installed at the outlet of fuel injection pumps, these valves:

• Stabilize high-pressure flow to each injector

• Provide a controlled pressure decay after injection

• Prevent line pressure rebound, reducing smoke and noise

• Enable sharp injection cut-off for clean combustion

• Reduce mechanical injector wear

Faulty or worn delivery valves result in delayed injection, injector chatter, poor idle, and excess fuel consumption.

Match Zexel Delivery Valves to Your Diesel Platform with Confidence

Goldfarb stocks delivery valves for dozens of diesel systems using Zexel injection pumps. Below are just a few engine families and equipment types supported:

Japanese Diesel Engines

• Nissan TD27, TD42, QD32

• Isuzu 4JB1, 4JG2, 4BD1

• Mitsubishi 4D56, 4M40, 6D16

• Mazda WL, RF, R2 diesel

Marine and Generator Engines

• Yanmar 4JH2, 6LY2, 6LP

• Kubota D1105, V2403, V3300

• Perkins engines with Zexel rotary pumps

Medium-Duty Commercial Trucks

• Hino JO8C, JO5C, Fuso 6M60, FE6

• UD diesel trucks with inline injection systems

These valves are also found on off-road equipment, gensets, irrigation pumps, and marine auxiliaries using VE or inline Zexel pumps.

Choose the Delivery Valve Type That Matches Your Engine’s Demand

We supply Zexel delivery valves in three functional categories to meet various repair and maintenance needs:

New Zexel Delivery Valves

• Brand-new OEM or OEM-equivalent components

• Matched spring tension, seat profile, and thread pitch

• Ideal for performance-critical systems and long-term use

Rebuilt Valves

• Fully disassembled, cleaned, and lapped

• Spring force verified to factory standards

• Leak-tested under high pressure

• Cost-effective alternative to new parts

Used Delivery Valves

• Pulled from working injection pumps

• Inspected for pitting, seat wear, and corrosion

• Budget-friendly for temporary repairs or low-use engines

All parts are inspected and validated before being shipped. Detailed specs can be provided on request.

Let Us Match Your Valve Using Pump and Engine Data

Not sure about what you need? Our parts specialists can locate the correct Zexel delivery valve using:

• Injection pump number (e.g., 104640-5410, VE4/10F2300L90)

• Engine make and model (e.g., TD42, 4JG2, 6D22)

• Equipment type (e.g., tractor, genset, marine engine)

• Fuel pump casting or tag number

• Photos of the delivery valve or pump label

We reference internal catalogs, legacy part lists, and global OEM databases to confirm fitment.

Extend Engine Life with Rebuilt Zexel Delivery Valves

Rebuilt Zexel delivery valves from Goldfarb offer an affordable way to restore fuel injection timing without compromising on performance. Trained diesel specialists rebuild each unit and include:

• Lapped and polished valve seats

• Spring replacement for pressure consistency

• Anti-dribble features verified and calibrated

• Tested for flow and leakage

Rebuilt valves are excellent for fleet maintenance, farm machinery, and restoration projects on Japanese diesel platforms.

Enjoy Fast, Reliable Shipping Wherever You Operate

We make sure your Zexel delivery valve reaches you quickly and safely:

• Same-day shipping on all in-stock items placed before 3:30 PM EST

• Domestic delivery via UPS, FedEx, and USPS

• International shipping is available to over 50 countries

• Rockville, MD pickup for local customers

• Secure packaging for fragile fuel system parts

Tracking numbers and invoices are emailed automatically. All orders require a verified business or residential address for delivery.

Work With Diesel Fuel System Experts That Understand Zexel Technology

Goldfarb & Associates has been supplying high-quality diesel fuel system parts since 1997. Our support for Zexel fuel delivery systems includes:

• One of the largest U.S. inventories of Zexel pump internals

• Hard-to-find delivery valves for obsolete and gray-market imports

• Rebuilt parts for older Yanmar, Nissan, and Hino engines

• Fast sourcing from surplus and OEM partners worldwide

• Technical guidance from experienced diesel professionals

• Satisfaction guarantee on all inspected and rebuilt units 

We serve shops, rebuilders, exporters, and individual diesel owners with the same attention to accuracy and quality.

Frequently Asked Questions

Are these delivery valves compatible with Bosch pumps?

Some Zexel pumps share Bosch designs, but many use proprietary seat dimensions. Always match by pump number or consult our team for assistance.

What symptoms point to a failing Zexel delivery valve?

Typical signs include rough idle, black smoke, delayed acceleration, and popping injectors.

Can I reuse my delivery valve?

Only if the seat is clean, flat, and unpitted, even minor wear can throw off injection timing. We recommend either complete replacement or rebuilding the valve.

Do you offer complete rebuild kits for Zexel VE pumps?

Yes. We carry plungers, barrels, seals, check valves, and delivery valves for most Zexel VE, DB, and inline pump models.

Do rebuilt valves come with a warranty?

All rebuilt and inspected used valves are backed by our satisfaction guarantee. Extended terms are available for trade accounts.

Get the Exact Zexel Delivery Valve Your Engine Needs Today

Goldfarb & Associates is your source for OEM-compatible Zexel delivery valves, whether you're servicing an agricultural machine, a marine vessel, or a Japanese diesel truck. With one of the largest selections in North America and expert matching support, we ensure you get the correct valve the first time. Browse our Zexel inventory now or contact us for help identifying the correct delivery valve for your diesel system.