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06161-59B-305 vs 16790-59B-003: What's the Difference?

Part Number Guide · September 2026 · 7 min read

If you are searching for 06161-59B-305 vs 16790-59B-003, you are probably trying to answer one question:

Are these two Honda fuel pump part numbers the same?

The short answer is:

06161-59B-305 is the newer Honda service part number that replaces 16790-59B-003 for applicable vehicles.

However, that does not mean you should order a pump based only on the part number relationship.

Vehicle specification, VIN, engine application, and regional market should still be checked before purchasing.

This guide explains the difference between the two Honda part numbers, why the number changed, and what repair shops and B2B buyers should verify before ordering.

Quick Comparison: 06161-59B-305 vs 16790-59B-003

The key point is simple:

Honda has superseded 16790-59B-003 with 06161-59B-305 for applicable applications.

In Honda parts listings, the earlier number is specifically shown as being replaced by the newer number.

That makes this a part-number supersession issue rather than two unrelated fuel pumps.

What Is Honda Part Number 16790-59B-003?

Honda part number 16790-59B-003 is an earlier reference for the high-pressure fuel pump assembly.

It is used in the direct-injection fuel system and should not be confused with the in-tank low-pressure fuel pump.

The high-pressure pump is responsible for supplying the fuel system at the pressure required by the engine's direct-injection system.

Honda parts catalogs for earlier Civic applications list the component as:

Pump Assy., Fuel High Pressure

This distinction is important because a Honda Civic can contain multiple fuel-delivery components.

Searching only for “Honda Civic fuel pump” can return:

• In-tank fuel pump modules
• Low-pressure fuel pumps
• High-pressure fuel pumps
• Fuel feed pipes
• Fuel pressure-related components

These are not interchangeable.

If your removed component carries the number 16790-59B-003, the correct current service reference may be 06161-59B-305, subject to application confirmation.

What Is Honda Part Number 06161-59B-305?

Honda part number 06161-59B-305 is listed as:

KIT, FUEL PUMP ASSY

It is also described in Honda parts catalogs as a Pump Kit or high-pressure fuel pump service part.

The important difference is not simply the wording.

The part number represents Honda's newer service replacement for the earlier 16790-59B-003.

Honda parts catalogs list the relationship directly:

16790-59B-003 → Replaced by 06161-59B-305

For buyers, this means that if you search the older part number and cannot find new stock, you should not immediately assume the part is discontinued without replacement.

The newer Honda service number may be the correct reference.

However, VIN confirmation should still come first.

Why Did Honda Change the Part Number?

Automotive manufacturers regularly update service part numbers.

A part number change does not always mean the original component has completely changed in design.

Possible reasons for a new service number include:

• Service packaging changes
• Revised component supply
• Updated installation hardware
• Parts consolidation
• Supplier changes
• Service-kit restructuring
• Internal catalog updates

Honda's newer number is described as a KIT, FUEL PUMP ASSY, while the older number is described as a high-pressure fuel pump assembly.

This may indicate a change in how Honda supplies the component for service.

However, buyers should avoid making unsupported assumptions about internal design changes unless they have official engineering documentation.

For sourcing purposes, the confirmed information is more useful:

06161-59B-305 replaces 16790-59B-003 for applicable vehicles.

Does 06161-59B-305 Fit Every Vehicle That Uses 16790-59B-003?

Do not assume so without checking.

A supersession relationship is an important reference, but the vehicle should still be verified.

Honda parts catalogs show the older 16790-59B-003 in earlier Honda Civic applications and the newer 06161-59B-305 in later applicable Civic 1.5T applications.

For example, published catalog listings associate 06161-59B-305 with selected Honda Civic EX, Touring, EX-L, and Sport Touring applications.

But a general description such as:

Honda Civic 1.5T

is not enough information for a final fitment decision.

Before ordering, confirm:

• VIN
• Model year
• Body style
• Trim
• Engine specification
• Transmission
• Regional market
• Original part number

This is particularly important for imported vehicles.

A US-market Civic and a vehicle built for another market may not always share the same parts specification.

Important: Civic Si and Type R Should Be Checked Separately

One of the biggest fitment mistakes is assuming that every Civic with a similar engine layout uses the same fuel pump.

Performance-oriented models can use different fuel-system specifications.

For example:

• Civic Sedan
• Civic Hatchback
• Civic Touring
• Civic Si
• Civic Type R

should not automatically be grouped together.

The Honda service description for 06161-59B-305 specifically identifies applicable 1.5L Civic applications and should not be treated as a universal Civic fuel pump reference.

Always confirm the exact vehicle before quoting.

06161-59B-305 vs 16790-59B-003: Which One Should You Buy?

For a new replacement part, the practical starting point is usually:

Check whether Honda's current replacement number for your vehicle is 06161-59B-305.

If your original component is 16790-59B-003, you should provide that number to your supplier together with the VIN.

The supplier can then check whether:

1. 06161-59B-305 is the correct superseding part
2. The vehicle matches the applicable catalog listing
3. The part is physically available
4. The quoted item is genuine Honda inventory

This is safer than searching for an old part number and purchasing the first listing that appears.

Can You Still Buy 16790-59B-003?

Older part numbers can sometimes remain available through:

• Existing dealer inventory
• Distributor stock
• Warehouse inventory
• Used parts suppliers
• International supply channels

However, buyers should clearly understand what they are purchasing.

If a supplier offers 16790-59B-003, ask:

• Is the part new or used?
• Is it genuine Honda?
• Is the packaging original?
• Can you provide actual product photos?
• Is this current stock?
• Is there a production or inventory identifier?

For B2B sourcing, old stock is not automatically a problem.

But old stock should be identified honestly.

A buyer should know whether they are purchasing:

• Current Honda service inventory
• Earlier genuine inventory
• Used OEM inventory
• Aftermarket replacement stock

These categories should never be mixed together under a vague “OEM fuel pump” description.

Common Sourcing Mistakes

Mistake 1: Treating Both Numbers as Unrelated Parts

The two numbers have a documented replacement relationship.

If you only search one number, you may miss available inventory listed under the other reference.

Search both:

• 06161-59B-305
• 16790-59B-003

This can improve sourcing coverage.

Mistake 2: Assuming the Older Number Is Automatically Obsolete for Every Market

Part supersession should be checked against the specific vehicle and market.

Catalog information can differ depending on region.

Always use the VIN when possible.

Mistake 3: Confusing the High-Pressure Pump With the Tank Pump

The Honda Civic fuel system includes more than one fuel-delivery component.

Do not order based only on the phrase:

Honda Civic fuel pump

Specify that you need the high-pressure fuel pump.

Mistake 4: Buying Based Only on Appearance

Two pumps can look similar while having different specifications.

The original part number and vehicle identification should remain the primary references.

Mistake 5: Ignoring Actual Stock Verification

A catalog listing does not prove that a supplier physically has the part.

For urgent repairs or B2B orders, ask whether the supplier can confirm:

• Actual inventory
• Quantity
• Product condition
• Packaging
• Current photos

How to Confirm the Correct Replacement Part

For the safest sourcing process, follow these steps.

Step 1: Record the Original Part Number

If the removed pump shows 16790-59B-003, take clear photos of:

• The part number
• Product label
• Connectors
• Fuel line connections
• Overall pump assembly

Step 2: Provide the VIN

The VIN helps identify the vehicle's original specification.

This is particularly useful when:

• The vehicle has been imported
• The engine has been replaced
• The model year is uncertain
• The vehicle has multiple possible configurations

Step 3: Ask for the Current Honda Reference

Ask the supplier:

Is 06161-59B-305 the correct current replacement for my original 16790-59B-003?

This is a more accurate sourcing question than simply asking:

Do you have a Honda Civic fuel pump?

Step 4: Request Actual Product Photos

Before confirming a high-value order, request actual photos where available.

Photos can help you review:

• Part labels
• Packaging
• Honda identification
• Physical condition
• Stock status

Need Help Confirming the Replacement Number?

Send your VIN together with the original part number.

Checking the replacement relationship before ordering can help prevent unnecessary returns and installation delays.

What This Part Number Change Means for B2B Buyers

For distributors and repair shops, a superseded part number creates both a sourcing challenge and a search opportunity.

Customers may still request 16790-59B-003 while current inventory may be listed as 06161-59B-305.

A supplier that understands the supersession relationship can search both references and improve availability.

This is also useful when managing older customer databases.

Instead of treating the two numbers as completely separate products, purchasing teams can record the relationship:

16790-59B-003 → 06161-59B-305

However, this relationship should be used as a sourcing reference—not as permission to skip fitment verification.

Verified Stock Matters More Than a Catalog Listing

For precision fuel-system components, correct sourcing is about more than finding a matching number.

Buyers should know:

• What part number is being shipped
• Whether the stock is physically available
• Whether the product is genuine
• Whether the part matches the vehicle application
• Whether actual photos can be provided

YUDI Auto Parts focuses on three practical sourcing checks:

Verified Stock
We confirm availability based on actual inventory information where possible.

Actual Photos
Buyers can review real product and packaging photos when available.

Batch Traceability
For applicable inventory, available identifying and batch information can support more traceable purchasing.

For workshops, distributors, and purchasing managers, the goal is simple: reduce guesswork before the part is shipped.

Need Help Sourcing 06161-59B-305 or 16790-59B-003?

If your customer has requested the older 16790-59B-003 or you are looking for the newer 06161-59B-305, send us the original part number and VIN.

We can help check the available replacement reference, confirm stock availability, and provide actual product photos where available.