---
product_id: 1252984
title: "9603 OE Fine Wire Double Iridium Spark Plug - Single"
brand: "bosch"
price: "$86845"
currency: COP
in_stock: true
reviews_count: 8
category: "Bosch"
url: https://www.desertcart.co/products/1252984-9603-oe-fine-wire-double-iridium-spark-plug-single
store_origin: CO
region: Colombia
---

# 4X longer lifespan 24% less voltage needed Nickel-plated corrosion resistance 9603 OE Fine Wire Double Iridium Spark Plug - Single

**Brand:** bosch
**Price:** $86845
**Availability:** ✅ In Stock

## Summary

> ⚡ Spark your drive with Bosch Double Iridium – where power meets precision!

## Quick Answers

- **What is this?** 9603 OE Fine Wire Double Iridium Spark Plug - Single by bosch
- **How much does it cost?** $86845 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/1252984-9603-oe-fine-wire-double-iridium-spark-plug-single)

## Best For

- bosch enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Double iridium electrodes deliver 4X the durability of standard copper plugs—less downtime, more drive time.
- • **OE-Perfect Fit:** Engineered to meet or exceed original equipment specs, ensuring seamless compatibility with modern GDI engines.
- • **Trusted by Pros:** Bosch’s legacy of reliability and performance keeps your engine running smoother, starting easier, and powering stronger.
- • **Ignite with Precision:** 360° laser-welded ultra-fine iridium wire for unmatched ignitability and engine responsiveness.
- • **Effortless Installation:** Pre-gapped and nickel-plated rolled threads mean no anti-seize needed—install in seconds, hit the road faster.

## Overview

Bosch 9603 OE Fine Wire Double Iridium Spark Plug features ultra-fine iridium electrodes and 360-degree laser welding for superior ignitability and 4X longer life. Pre-gapped and nickel-plated for corrosion resistance, it installs easily without anti-seize. Designed to meet OE standards, it’s compatible with a wide range of modern gasoline engines including GDI, delivering reliable, high-performance ignition for smoother starts and enhanced engine power.

## Description

Product Description Bosch Double Iridium Spark Plugs are engineered to deliver both high performance and long life, representing advanced original equipment (OE) spark plug technology. The ultra-fine wire design and laser welded tapered ground electrode deliver optimum performance, while the iridium center electrode and iridium ground electrode inlay help it to go the distance. OE-matched spark position ensures compatibility with Gasoline Direct Injection (GDI) technology used in modern gas engines. Bosch Double Iridium Spark Plugs are pre-gapped at the factory and feature nickel plated rolled threads that require no anti-seize, for simple, easy installation right out of the box. Unlock the performance in your engine with Bosch Double Iridium Spark Plugs. brand_description Bosch Automotive

Review: Reliable Bosch Spark Plugs - High-quality spark plugs that fit perfectly and work as expected. Engine runs smoother and starts easily. Durable and dependable — Bosch never disappoints. Great value for maintenance or replacement!
Review: Solid, reliable park plugs - I got these for my 2002 GS430 and boy do they help get all the power out of my engine. I have an exhaust leak and trans leak that leads to a laggy bogged down performance, but by swapping out with these plugs yearly I can keep the power more responsive. I tried other plugs, but these seem to do the best for me in my case. Installation was straight forward and these tightened in place great with a little bit of antiseize.

## Features

- Bosch Double Iridium Spark Plugs feature both an iridium firing pin and an iridium ground electrode inlay that offer higher performance and 4X longer life compared to standard copper spark plugs
- 360-degree laser welded ultra-fine wire iridium firing pin provides better ignitability - reducing voltage requirements up to 24% - and enhanced durability
- Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize - making installation quick and easy
- Bosch Double Iridium spark plugs are pre-gapped at the factory and ready to install right out of the box - gap adjustment prior to installation not required
- Meets or exceeds manufacturer design requirements for OE fit, form, and function for modern gasoline engines - including Gasoline Direct Injection (GDI) engines
- Compatible with select vehicles including, but not limited to, the following (Note: engine affects fitment - verify specific fitment details with desertcart confirmed fit fit checker above): ACURA: 92-01 Integra, 91-95 Legend, 91-05 NSX; HONDA: 11-16 CR-Z
- Compatible with (cont): JAGUAR: 01 XJ8, 98-01 XJR, 00-02 XKR; LEXUS: 94-06 ES300/330, 98-00 GS400, 01-07 GS430, 03-09 GX470, 10-12 HS250h, 90-94,97-00 LS400, 01-06 LS430, 98-07 LX470, 99-06 RX300/330, 06-08 RX400h, 92-94 SC300, 92-00 SC400, 02-10 SC430
- Compatible with (cont): LINCOLN: 00-06 LS; MERCEDES-BENZ: 02-04 C32, 05-07 C55, 03-06 CLK55, 00-04 SLK230, 02-04 SLK32, 06-11 SLK55; MITSUBISHI: 11-17 Lancer, 11-20 Outlander Sport; NISSAN: 99-01 Altima, 99-00 Frontier, 98-00 Pathfinder
- Compatible with (cont): PONTIAC: 03-06,09-10 Vibe; SCION: 05-10 tC, 08-12 xB; SUBARU: 10-13 Legacy, 10-15 Outback; SUZUKI: 06-08 Grand Vitara, 04-11 Swift/Swift+, 04-06 Verona, 05-06 XL-7; TOYOTA: 03-09 4Runner, 95-04 Avalon, 92-11 Camry
- Compatible with (cont): TOYOTA: 92-05 Celica, 05-06,09-10,12-13 Corolla, 01-10 Highlander, 98-07 Land Cruiser, 03-06,09-12 Matrix, 92-95 MR2, 96-08 RAV4, 05-12 Sequoia, 98-06 Sienna, 99-08 Solara, 93-98 Supra, 05-10 Tundra; VOLVO: 07-10 S80, 05-11 XC90

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00515NH4K |
| Best Sellers Rank | #974,794 in Automotive ( See Top 100 in Automotive ) #5,206 in Automotive Replacement Spark Plugs |
| Brand | Bosch |
| Brand Name | Bosch |
| Compatible with Vehicle Type | Car |
| Core Material | Iridium |
| Customer Reviews | 4.6 out of 5 stars 877 Reviews |
| Global Trade Identification Number | 00028851010375 |
| Included Components | spark plug |
| Item Type Name | Spark Plug |
| Item Weight | 0.05 Pounds |
| Manufacturer | Bosch Automotive |
| Manufacturer Part Number | 9603 |
| Manufacturer Warranty Description | Limited |
| Thread Size | 1.25mm |
| Top Material Type | Nickel |
| UPC | 028851010375 |
| Unit Count | 1 Count |
| Vehicle Service Type | Car |

## Product Details

- **Brand:** Bosch
- **Core Material:** Iridium
- **Thread Size:** 1.25mm
- **Top Material Type:** Nickel
- **Vehicle Service Type:** Car

## Images

![9603 OE Fine Wire Double Iridium Spark Plug - Single - Image 1](https://m.media-amazon.com/images/I/71tqIg+ETUL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: what is the gap preset on these spark plugs in inches?**
A: Most Bosch Spark Plugs are factory pre-gapped for popular vehicle applications. The gap measurements are indicated either on the box, or by the part number located on the spark plug shell.     X suffix = .044"    Y suffix = .060"    Z suffix = .080". However, it must be noted that wire-tip or needle-tip plugs can afford to have larger gaps as the spark occurs at a lower voltage if one end is pointed, leading to a wider spark and better combustion of the fuel-air mixture. Gaps should never be adjusted on the OE-Fine Wire-tipped plugs - should never be gapped by the installer. Attempts to do so might damage the plug/the delicate tip. What is more important is all the plugs should have equal gaps, or there might be engine knocking and vibrations.

**Q: Will this work for Lawnmower ?**
A: Only if your lawn mower has a 2.2L 4 cylinder engine.

**Q: uses 14MM socket?**
A: 14mm socket is standard - 10mm and 12mm are less common, found in only some motorcycles. What is more important is the thread reach - too little or too much are both bad. Amazon has a nice system of  selecting the vehicle and showing which plugs fit that vehicle. Bosch has a similar system at BoschAutoParts.com. Remember to NEVER gap-adjust iridium plugs.

**Q: Will this work for honda crv 2016?**
A: Bosch 9603 does not fit the 2016 Honda CR-V. The correct Bosch spark plug for this application is 96310. Thank you for your question.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable Bosch Spark Plugs
*by C***A on February 12, 2026*

High-quality spark plugs that fit perfectly and work as expected. Engine runs smoother and starts easily. Durable and dependable — Bosch never disappoints. Great value for maintenance or replacement!

### ⭐⭐⭐⭐⭐ Solid, reliable park plugs
*by S***N on March 4, 2024*

I got these for my 2002 GS430 and boy do they help get all the power out of my engine. I have an exhaust leak and trans leak that leads to a laggy bogged down performance, but by swapping out with these plugs yearly I can keep the power more responsive. I tried other plugs, but these seem to do the best for me in my case. Installation was straight forward and these tightened in place great with a little bit of antiseize.

### ⭐⭐⭐⭐⭐ Good performance and better gas mileage.
*by Q***Q on October 1, 2025*

The plugs I received were made in Germany. The plugs are almost half the cost of Denso and they perform just as well. I would recommend these plugs.

## Frequently Bought Together

- BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Single
- BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Pack of 4
- FEL-PRO VS 50530 R Engine Valve Cover Gasket Set for Toyota Camry

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co/products/1252984-9603-oe-fine-wire-double-iridium-spark-plug-single](https://www.desertcart.co/products/1252984-9603-oe-fine-wire-double-iridium-spark-plug-single)

---

*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-03-11*