Scania 1464994 HPI Unit Injector | 24V, DT12 Applications & 12-Month Warranty

When a Scania heavy-duty engine develops rough running, unstable idle, poor acceleration or abnormal fuel consumption, I do not recommend choosing a replacement injector only by the truck model.

For the Scania 1464994 unit injector, the first thing I check is the original injector number, followed by the engine model and available engine identification information.

The 1464994 is listed in current diesel-parts catalogs as a Scania unit injector and is associated with reference numbers including 1846348, 574398 and 579260. Some B2B catalogs also list applications around Scania DC12, D19 and DT12.02. Because application data can vary between engine versions and supplier catalogs, I recommend confirming the original injector number before placing an order.

Scania's own technical material separates PDE, HPI and XPI injector systems and explains that the correct unit injector has a direct influence on engine output, torque and fuel consumption. Scania also notes that injector nozzles can differ in materials and heat treatment between applications.

That is why our approach is simple:

Identify the correct injector first. Test it properly. Then ship it.

Scania 1464994 Injector Overview

Application note: Injector cross-reference data can differ between catalogs and engine configurations. Please provide the number from your original injector so we can verify the correct replacement.

What Is Scania 1464994?

The 1464994 is a Scania unit injector used in selected heavy-duty diesel engine applications.

From an engineering point of view, I would not describe this component simply as a generic “fuel injector.”

A unit injector is part of a specific fuel-system architecture. Its nozzle design, internal components, actuation characteristics and fuel-delivery behavior must match the engine's intended specification.

This is especially important when comparing Scania injectors with conventional common-rail injectors.

Scania's official service material separately identifies:

• Unit Injector (PDE)

• Unit Injector (HPI Engines)

• Unit Injector (XPI Engines)

For HPI applications, Scania lists DC12 and DT12 engine families separately from its XPI injector applications.

Therefore, I do not recommend using a Bosch common-rail number such as 0445120006 as a universal replacement reference for 1464994.

The original injector identification remains the safer matching method.

1464994 Cross Reference Numbers

The reference numbers most relevant to the 1464994 listing in the sources we reviewed include:

• 1464994

• 1846348

• 574398

• 579260

A current diesel-service catalog lists 1464994 as a Scania unit injector for applications including DC12, D19 and DT12.02, with Cummins PT and other injector references also appearing in its cross-reference data.

Other B2B listings group 1464994 with additional numbers such as 4088725, 4902818, 1764364 and 1846350, but these databases are not fully consistent with one another.

For that reason, I recommend treating cross-reference numbers as identification aids rather than automatic interchange guarantees.

Our preferred matching method

For a repair-shop order, send me:

Original injector number + engine model + engine serial number if available

This gives us a much stronger basis for confirming the application.

Why Correct Injector Matching Matters

Scania explains that the unit injector supplies the combustion chamber with the correct amount of fuel at the required pressure and has a significant influence on:

• Engine output

• Engine torque

• Fuel consumption

• Operating economy

• Emissions performance

Scania also points out that diffuser nozzles can differ between unit injector versions, including differences in material and heat treatment. Installing an incorrect unit injector can therefore prevent the engine from achieving its intended performance.

This is one of the reasons I am careful about using broad statements such as:

“Fits all Scania DT12 engines.”

For a professional B2B product page, that statement is too broad unless the exact engine configuration has been verified.

Common Symptoms of a Suspected Injector Problem

When a unit injector is worn, contaminated or otherwise outside its required operating condition, a repair shop may encounter:

Unstable Idle

Uneven fuel delivery between cylinders can contribute to rough or unstable engine operation.

Reduced Power

Incorrect fuel delivery can affect combustion efficiency and engine output, particularly when the vehicle is operating under heavy load.

Poor Acceleration

A truck may respond slowly when accelerating, climbing hills or carrying a heavy load.

Increased Fuel Consumption

Poor injection performance can reduce combustion efficiency and increase fuel usage.

Difficult Starting

An injector-related fuel-delivery problem can contribute to hard starting, although starting problems should also be diagnosed across the complete fuel and electrical system.

Rough Engine Operation

Cylinder-to-cylinder fuel-delivery differences may contribute to vibration or uneven combustion.

Excessive Exhaust Smoke

Abnormal injection can contribute to smoke, but I recommend checking air intake, turbocharging, EGR, fuel supply and aftertreatment systems before identifying the injector as the only cause.

A symptom does not automatically prove that the injector is defective. Proper diagnosis should come first.

How We Test 1464994 Injectors

For our repair-shop customers, I prefer to talk about the actual testing process rather than simply using phrases such as “OEM quality.”

Our inspection and testing process can include:

1. External Inspection

We check the injector body, connector, nozzle area, sealing surfaces and visible machining condition.

2. Electrical / Actuator Inspection

The electrical actuator and response are checked according to the applicable injector test procedure.

3. Fuel Delivery Test

The injector is tested for fuel-delivery behavior against the relevant test specification.

4. Leakage Test

We check for abnormal internal or external leakage.

5. Injection Performance Check

Where applicable to the injector type and test equipment, we inspect injection characteristics and spray behavior.

6. Final Inspection

The injector is inspected again before packaging and shipment.

For remanufactured units, we additionally inspect the returned core and replace or recondition appropriate wear components before final bench testing.

New and Remanufactured 1464994 Options

I understand that different repair shops have different requirements.

A fleet workshop may prioritize service life and cost control, while a parts distributor may need several quality levels for different customers.

For this reason, we can provide:

New 1464994 Injector

Suitable for customers who require a new replacement component.

Typical advantages include:

• New major components

• Consistent external condition

• No dependence on returned-core condition

• Suitable for professional replacement programs

Remanufactured 1464994 Injector

A professionally remanufactured injector can provide a more economical option for fleet and workshop repairs.

The key point is not simply whether an injector is called “remanufactured.”

The important questions are:

• Was the core properly inspected?

• Were worn components replaced?

• Was the injector correctly assembled?

• Was it tested on a suitable bench?

• Are the test results within the required specification?

Scania itself offers service-exchange injectors and states that its exchange injectors are supplied with new nozzles and meet the same strict quality requirements and warranties as newly manufactured parts.

Installation Advice for Repair Shops

When replacing a 1464994 injector, I recommend that technicians follow the service procedure applicable to the exact engine.

1. Confirm the Injector Number

Compare the replacement with the number on the original injector.

Do not rely only on:

• Truck series

• Engine displacement

• Connector appearance

• General injector shape

2. Keep the Fuel System Clean

Precision fuel components can be damaged by contamination.

Before installing a replacement injector, inspect the fuel filters and investigate any evidence of:

• Metal contamination

• Water in fuel

• Dirt

• Fuel degradation

• Previous component failure

3. Inspect the Injector Seat and Sealing Area

The injector should be installed on a clean and properly prepared seating surface.

Damaged sealing areas can cause problems even when the replacement injector itself is functioning correctly.

4. Check Related Fuel-System Components

If the original injector failed because of a broader fuel-system problem, simply installing a new injector may not solve the root cause.

I recommend checking the relevant:

• Fuel supply system

• Fuel filtration

• High-pressure components

• Injector wiring

• Electrical connections

• Engine management system

5. Follow the Applicable Scania Procedure

Torque values, adjustment procedures and diagnostic requirements should come from the service information applicable to the specific engine.

Does 1464994 Require ECU Coding?

I recommend being careful with this question.

Some aftermarket listings state that ECU coding is required for their injector products, but this is not something I would publish as a universal technical requirement for every 1464994 application.

Scania's official material identifies different injector system architectures and provides application-specific service information, but it does not support a blanket statement that every HPI/unit injector replacement uses the same generic ECU coding procedure.

For a repair shop, my recommendation is:

Install the correctly matched injector and follow the diagnostic, adjustment and calibration procedure specified for the exact engine configuration.

If you send us the engine model and original injector number, we can help determine what should be checked before installation.

1464994 Application Verification

Before I confirm a B2B order, I recommend checking the following information.

Original Injector Number

The number printed or stamped on the existing injector.

Engine Model

For example, the relevant Scania DC12, D19 or DT12 configuration.

Engine Serial Number

If available, this can make application matching much more precise.

Vehicle Information

Scania truck series and production information.

Existing Injector Photos

A clear photo of the injector identification marking can help us verify the number when the printed data is difficult to read.

Required Quantity

For fleet or workshop orders, tell us whether you need one injector or a complete engine set.

Scania 1464994 Injector Specification

The application information above is intentionally conservative because current aftermarket databases do not present completely identical compatibility data for 1464994. One specialist diesel-parts catalog lists 1464994 with DC12, D19 and DT12.02, while B2B listings provide broader DT12 references.

For that reason, original injector number verification remains recommended.

Related Scania Injector Products

For our B2B catalog, I recommend giving every product a specific title instead of using a generic “Scania Fuel Injector” title.

Scania 1464994 Unit Injector | 24V, DT12 Applications & 12-Month Warranty

Scania 1481827 HPI Injector | 24V, DC12/DC13 Applications & Bench Tested

Scania 1499714 HPI Injector | 24V, DC13 Applications & Reman Option

Scania 1521977 HPI Injector | 24V, DC12/DC13 Applications & 12-Month Warranty

Scania 1521978 HPI Injector | 24V, DC13 Applications & Bench Tested

Scania 1529790 HPI Injector | 24V, DC12/DC13 Applications & Reman Option

Scania 1846347 HPI Injector | 24V, 1481827 Reference & Bench Tested

Scania 1846348 Unit Injector | 24V, 1464994 Reference & 12-Month Warranty

Scania 1846349 HPI Injector | 24V, DC13 Applications & Reman Option

Scania 1846350 HPI Injector | 24V, 1529790 Reference & Bench Tested

These titles intentionally combine the part number + 2–3 practical selling points, rather than simply repeating “fuel injector” several times.

HPI vs. XPI: Why We Check the System First

One of the most important things I tell overseas repair shops is:

Do not mix HPI and XPI injectors simply because the truck model looks similar.

Scania's official parts information clearly separates:

PDE — Unit Injector

HPI — Unit Injector for HPI Engines

XPI — Unit Injector for XPI Engines

Scania's service-exchange documentation separately lists HPI applications such as DC12 and DT12, while XPI applications include other engine families.

This distinction is important when searching by part number because aftermarket catalogs can contain overlapping or inconsistent cross-reference information.

For professional parts matching, I recommend:

Part Number → Fuel System → Engine → Vehicle

rather than:

Vehicle → Guess the Injector

B2B Supply for Repair Shops and Distributors

We supply diesel fuel-system components to:

• Truck repair workshops

• Diesel specialists

• Fleet maintenance companies

• Heavy-duty parts wholesalers

• Importers

• Regional distributors

• Engine rebuilding workshops

For Scania injector orders, we can support:

Mixed Part Numbers

Different Scania injector numbers can be combined in a B2B order according to stock and MOQ requirements.

New and Remanufactured Options

We can quote new and remanufactured products separately.

Application Matching

Send the original injector number and engine information. I will help verify the application before shipment.

Export Packaging

Neutral export packaging is available for B2B orders, with customized packaging options subject to quantity and agreement.

Technical Support

If you are unsure whether two injector numbers are interchangeable, send us the numbers first. I would rather verify them before shipment than ask a workshop to deal with a wrong part after delivery.

Warranty

Our standard product warranty is 12 months, subject to the agreed warranty terms and correct installation.

Our Injector Quality-Control Process

I prefer to show our customers how we control the product rather than simply saying “high quality.”

Our general process is:

Incoming Inspection

↓

Core / Component Inspection

↓

Cleaning

↓

Precision Component Inspection

↓

Assembly

↓

Bench Testing

↓

Leakage and Fuel-Delivery Verification

↓

Final Inspection

↓

Packaging

↓

Shipment

For remanufactured products, the exact procedure depends on the injector family and condition of the returned core.

Frequently Asked Questions

1. What is Scania 1464994?

1464994 is listed in diesel-parts catalogs as a Scania unit injector for selected heavy-duty engine applications. One specialist catalog associates it with DC12, D19 and DT12.02, while other B2B catalogs provide broader Scania DT12 application references.

2. Is 1464994 a Bosch common-rail injector?

I would not classify it as a conventional Bosch common-rail injector based on the available application data.

The 1464994 is listed as a Scania unit injector, while Scania officially distinguishes its PDE, HPI and XPI injector systems.

3. What numbers are associated with 1464994?

Common references found in current diesel-parts data include:

1846348, 574398 and 579260.

Additional numbers may appear in aftermarket catalogs, so I recommend confirming the original injector number before treating a cross-reference as interchangeable.

4. Does 1464994 fit every DT12 engine?

No.

I would not recommend publishing “fits all DT12 engines.”

Different engine versions can use different injector specifications. Send us the original injector number and engine information for application verification.

5. Is 1464994 suitable for Scania P/G/R/T trucks?

The truck series alone is not enough to confirm fitment.

Scania P/G/R/T vehicles can use different engines and fuel-system configurations. I recommend matching the injector using the original part number and engine information.

6. Do you supply new 1464994 injectors?

Yes.

We can supply new and remanufactured options according to availability and customer requirements.

7. Are the injectors bench tested?

Yes. Our normal quality-control process includes visual inspection and relevant bench checks for fuel delivery, leakage, actuator response and overall injector performance.

8. Do you provide a 12-month warranty?

Yes. Our standard product warranty is 12 months, subject to the agreed warranty terms.

9. Can I mix different injector part numbers?

Yes.

For B2B orders, mixed part numbers can normally be arranged according to stock availability and MOQ requirements.

10. What information should I send before ordering?

Please send:

• Original injector number

• Engine model

• Engine serial number if available

• Truck model

• Production year if known

• Quantity required

• New or remanufactured requirement

A photo of the original injector marking is also useful when the number is unclear.

Why I Recommend Working With a Technical Injector Supplier

From my experience working with overseas repair shops, the biggest problem with diesel injectors is not always product availability.

It is incorrect matching.

A workshop can lose much more money from one wrong injector than it saves by choosing the cheapest supplier.

That is why I focus our service on:

Correct Part Number Matching

Fuel-System Identification

Bench Testing

New & Remanufactured Options

Technical Communication

B2B Stock Support

12-Month Warranty

We supply not only Scania unit injectors but also a wider range of diesel fuel-system components, including:

• Diesel fuel injectors

• Unit injectors

• XPI injectors

• High-pressure fuel pumps

• Diesel engine ECUs

• Electronic control modules

• Solenoid injectors

• Piezo injectors

• Injector repair components

Our goal is not simply to sell one injector.

I want to help repair shops and distributors build a reliable diesel-parts supply channel where the right part is identified before the order is shipped.

Order Scania 1464994 Unit Injector

If you need Scania 1464994, send me the following information:

Original Injector Number: 1464994 / number on your existing injector

Engine Model: DC12 / D19 / DT12 / other

Engine Serial Number: if available

Truck Model: Scania P / G / R / T / other

Required Quantity:

Product Condition: New / Remanufactured

I will check the available cross-reference and application information before we confirm the order.

For professional repair shops, I always recommend matching first and buying second. A correctly identified injector can save much more time and money than a cheap injector that turns out to be the wrong specification.