---
product_id: 11350485
title: "6 PCSNEW -- DENSO #4503 PLATINUM T T Spark Plugs -- PK16TT"
brand: "denso"
price: "$50.84"
currency: USD
in_stock: true
reviews_count: 9
category: "Denso"
url: https://www.desertcart.us/products/11350485-6-pcsnew-denso-4503-platinum-t-t-spark-plugs-pk16tt
store_origin: US
region: United States of America
---

# Twin-Tip Platinum Electrodes 360° Laser Welding Precision Titanium-Enhanced Durability 6 PCSNEW -- DENSO #4503 PLATINUM T T Spark Plugs -- PK16TT

**Brand:** denso
**Price:** $50.84
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with precision and power — don’t get left in the dust!

## Quick Answers

- **What is this?** 6 PCSNEW -- DENSO #4503 PLATINUM T T Spark Plugs -- PK16TT by denso
- **How much does it cost?** $50.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/11350485-6-pcsnew-denso-4503-platinum-t-t-spark-plugs-pk16tt)

## Best For

- denso enthusiasts

## Why This Product

- Trusted denso brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Thousands:** Rated 4.6 stars by nearly 4,000 users—join the savvy drivers upgrading their ignition game.
- • **OEM-Level Fit & Finish:** Vehicle-specific design guarantees hassle-free installation and perfect compatibility with your ride.
- • **Long-Lasting Durability:** Titanium-enhanced ground electrode minimizes erosion, extending spark plug life and reliability.
- • **Unmatched Build Quality:** 360° laser welding ensures a rock-solid bond that resists wear and tear under extreme conditions.
- • **Precision Ignition Power:** DENSO’s unique 1.1mm twin-tip platinum electrodes deliver superior spark efficiency for smoother engine performance.

## Overview

The DENSO 6 PCS Platinum TT 4503 Spark Plugs feature a cutting-edge twin-tip 1.1mm platinum center electrode combined with 360° laser welding and a titanium-enhanced ground electrode for superior durability and ignition performance. Designed for vehicle-specific fit, these spark plugs offer OEM-quality reliability and are highly rated by thousands of users for smooth engine starts and long-lasting operation.

## Description

Genuine 6 pack DENSO Platinum TT 4503 Spark Plug

Review: very good quality - work without issue
Review: No issues threading them in, just had to set the gap beforehand. - The set was OEM or better quality for a good price. They were not pre-gapped but with a little patience I set the appropriate gap for all six. Installation on the back side of the horizontally opposed V6 in the 2004 Acura MDX was a little bit of a pain but certainly not the worst job I've had to do. Engine turned right over and I don't have any apparent knock or misses. Don't forget to use a little dielectric lube on those coils though! And if you see oil pooled around the spark plug, the spark tube seals are bad. You replace those along with the valve cover gaskets. And you may as well do the intake plenum gasket set as well. That's next on my radar since I did have oil in two of my spark tubes.

## Features

- DENSO Unique Twin-Tip Structure
- 1.1mm platinum center electrode
- 360 Laser welding
- The Titanium-enhanced alloy on the ground electrode also increases durability, which is critical to minimize tip erosion and achieve the new Twin-Tip design.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00S3GUW1U |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #6,437 in Automotive ( See Top 100 in Automotive ) #11 in Automotive Replacement Spark Plugs |
| Brand | Denso |
| Core Material | Platinum |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,997) |
| Date First Available | January 11, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.44 ounces |
| Item model number | PK16TT |
| Manufacturer | Denso Sales California, Inc. |
| Manufacturer Part Number | 4503 |
| Model | 6 pack DENSO Platinum TT 4503 Spark Plug |
| Position | Front, Rear |
| Product Dimensions | 3.62 x 5.76 x 0.96 inches |
| Thread Size | Thread Pitch: 1.25mm, Hex Size: 16mm |
| Top Material Type | Platinum |
| UPC | 026521134574 |
| Vehicle Service Type | Car, Truck |

## Product Details

- **Brand:** Denso
- **Core Material:** Platinum
- **Thread Size:** Thread Pitch: 1.25mm, Hex Size: 16mm
- **Top Material Type:** Platinum
- **Vehicle Service Type:** Car, Truck

## Images

![6 PCSNEW -- DENSO #4503 PLATINUM T T Spark Plugs -- PK16TT - Image 1](https://m.media-amazon.com/images/I/71s7BXAIw2L.jpg)

## Questions & Answers

**Q: are this pregap**
A: They are supposedly pregapped, but all my plugs that came had a gap of 0.035.
My truck calls for a gap of 0.044. I had to use my gapping tool to adjust the gap of each.

**Q: Compatable with accord 01 4cyl?**
A: yes

**Q: does this fit 2007 rx400h?**
A: According to the information provided, you need Denso 4504. https://www.amazon.com/dp/B00S3H2D3Y?ref=myi_title_dp

**Q: Compatible with Honda Odyssey 1998 4 cyl?**
A: Cannot say, my application was a 2003 Odyssey and all went well

## Customer Reviews

### ⭐⭐⭐⭐⭐ very good quality
*by B***E on November 11, 2025*

work without issue

### ⭐⭐⭐⭐⭐ No issues threading them in, just had to set the gap beforehand.
*by D***R on July 13, 2021*

The set was OEM or better quality for a good price. They were not pre-gapped but with a little patience I set the appropriate gap for all six. Installation on the back side of the horizontally opposed V6 in the 2004 Acura MDX was a little bit of a pain but certainly not the worst job I've had to do. Engine turned right over and I don't have any apparent knock or misses. Don't forget to use a little dielectric lube on those coils though! And if you see oil pooled around the spark plug, the spark tube seals are bad. You replace those along with the valve cover gaskets. And you may as well do the intake plenum gasket set as well. That's next on my radar since I did have oil in two of my spark tubes.

### ⭐⭐⭐⭐⭐ Fits 2007 Honda Ridgeline with V6
*by J***M on December 14, 2025*

These Denso spark plugs fit perfectly in a 2007 Honda Ridgeline V6 and, along with new ignition coils, cured the P030x misfire errors. Based on the condition of the old plugs, I think they were the main cause. I’d say these plugs are identical to the originals, but frankly the old plugs were so worn, with so much of their electrodes missing, that I can’t really tell. I did inspect the gaps and all six plugs were correct. After replacement, the engine ran smooth again and the misfire errors did not return.

## Frequently Bought Together

- 6 PCSNEW -- DENSO #4503 PLATINUM T T Spark Plugs -- PK16TT
- Set of 6 Ignition Coil Pack for 3.5 3.7 V6 Acura MDX Honda Ridgeline Pilot Saturn vue 2001 2002 2003 2004 2005 2006 2007 2008 2009 Coils Replaces# UF400 UF512 C1460
- FEL-PRO VS 50607 R Engine Valve Cover Gasket Set for Honda Pilot

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-24*