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Product guide

BDFHYK 4504 Iridium Spark Plugs, 6-Pack

BDFHYK 4504 iridium spark plugs are listed as a six-pack for the 2003–2007 Honda Accord 3.0L V6. The listing also names other vehicle applications, so confirm your exact year, engine, and replacement part number before ordering.

At a glance

The title specifies a six-plug set for the 2003–2007 Honda Accord 3.0L V6.
The listing also identifies 4504 and PK20TT as compatible part numbers.
The manufacturer describes iridium center electrodes and ceramic insulators.

Price

$17.09Save 10%

Reference price: ~~$18.99~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

Six plugs are supplied as a set for the listed six-cylinder Accord application.
The stated 4504 and PK20TT references give buyers additional part-number checks.
Customer feedback includes reports of easy installation and improved vehicle performance, though experiences vary.

Technical specifications

10 specifications

Identity
Brand	BDFHYK
Model	BD-05-01903-SP
Item type	Iridium Spark Plug

Construction and fit
Core material	Iridium
Top material	Nickel
Thread size	RM
Fit type	Vehicle Specific Fit
Vehicle service type	Car
Compatible part numbers	4504,PK20TT

Package and support
Manufacturer warranty description	1 Year Manufacturer

What to know before buying

Listing details to confirm

The vehicle-compatibility details are contradictory: the title names a 2003–2007 Honda Accord 3.0L V6, while other listing details cite Toyota Camry, Honda Civic and CR-V, plus Mitsubishi, Dodge and Jeep applications. Customer feedback also includes incompatible Accord reports. Confirm exact vehicle, engine and OE number before purchase. Customer reports about longevity and gap accuracy are mixed. The listing provides thread size as “RM,” which does not establish a specific measurement.

What’s in the box

Included

Housing

Who is it for?

A good fit for

Owners checking a replacement set for the specifically listed Honda Accord 3.0L V6 years, after verifying fit against the vehicle and OE number.
Buyers whose replacement reference is 4504 or PK20TT and who can confirm application compatibility.

Less suited to

Anyone needing a guaranteed fit based only on the broad vehicle list or title without checking the exact engine and replacement part number.
Buyers seeking a spark plug set with consistently reported durability or gap accuracy.

BDFHYK 4504 Iridium Spark Plugs, 6-Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 2,933 ratings

5 stars81%81%
4 stars10%10%
3 stars4%4%
2 stars1%1%
1 star4%4%

Customer feedback highlights perceived quality, functionality, value and ease of installation, with reports of improved truck performance and mileage. Those reported benefits do not establish a result for every vehicle. Durability, vehicle compatibility and gap accuracy receive mixed feedback, including reports of short lifespan and Accord fit problems. Because the listed application details conflict, buyers should verify the exact vehicle and OE number before relying on a fit report.

Positive themes

Customers report easy installation and appreciate the perceived functionality and value.

Mixed feedback

Reports on durability vary, including both long-lasting use and failure within two months.
Compatibility feedback is mixed, with some buyers reporting a good fit and others saying the plugs did not fit Honda Accords.
Customer impressions of gap accuracy differ.

Frequently asked questions

Which vehicle does the title list?

It lists the 2003–2007 Honda Accord with a 3.0L V6. Other compatibility information on the listing names different vehicles, so verify the exact application and OE number.

How many spark plugs are included?

The listing specifies a six-count pack.

Which part numbers does the listing reference?

It identifies 4504 and PK20TT as compatible part numbers. Confirm that one matches the part being replaced in your vehicle.

What do customers report about durability and fit?

Feedback is mixed. Some describe long service life and a good fit, while others report short lifespan or compatibility problems, including with Honda Accords.