---
product_id: 275935482
title: "9603 OE Fine Wire Double Iridium Spark Plug - Single"
brand: "bosch"
price: "$113811"
currency: COP
in_stock: true
reviews_count: 5
category: "Bosch"
url: https://www.desertcart.co/products/275935482-9603-oe-fine-wire-double-iridium-spark-plug-single
store_origin: CO
region: Colombia
---

# 4X longer lifespan 24% less voltage needed Corrosion-resistant threads 9603 OE Fine Wire Double Iridium Spark Plug - Single

**Brand:** bosch
**Price:** $113811
**Availability:** ✅ In Stock

## Summary

> ⚡ Spark your engine’s potential with Bosch Double Iridium – where power meets longevity!

## Quick Answers

- **What is this?** 9603 OE Fine Wire Double Iridium Spark Plug - Single by bosch
- **How much does it cost?** $113811 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/275935482-9603-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

- • **Ignite with Precision:** 360° laser-welded ultra-fine iridium wire ensures lightning-fast, reliable starts every time.
- • **Effortless Installation:** Pre-gapped and nickel-plated threads mean no anti-seize needed—get back on the road faster.
- • **Endurance That Outlasts:** Experience 4X the lifespan of standard copper plugs—less hassle, more drive time.
- • **Trusted German Engineering:** Bosch quality you can count on, delivering performance at nearly half the cost of premium competitors.
- • **Optimized for Modern Engines:** OE fit and function tailored for Gasoline Direct Injection (GDI) and a wide range of premium vehicles.

## Overview

Bosch 9603 OE Double Iridium Spark Plug features ultra-fine iridium electrodes and 360-degree laser welding for superior ignitability, reducing voltage requirements by up to 24%. With 4X longer life than copper plugs and corrosion-resistant nickel-plated threads, it offers hassle-free installation and OE-level performance for modern gasoline engines, including GDI. Compatible with a broad range of premium vehicles, this spark plug delivers reliable, high-performance ignition engineered in Germany.

## Description

BOSCH Double Iridium Spark Plugs are engineered to deliver both high performance and long life, representing the best of OE spark plug technology. The ultra-fine wire design and laser welded tapered ground electrode deliver optimum performance, while the iridium center electrode and ground electrode help it to go the distance. Unlock the performance in your engine with BOSCH Double Iridium Spark Plugs.

Review: Toyota Sienna 2006
Review: 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.

## 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 | #158,888 in Automotive ( See Top 100 in Automotive ) #1,089 in Automotive Performance Spark Plugs |
| Brand | BOSCH |
| Customer Reviews | 4.6 4.6 out of 5 stars (829) |
| Date First Available | 7 August 2012 |
| Exterior | Machined |
| Item Weight | 22.7 g |
| Item model number | 9603_1 |
| Manufacturer | Bosch Automotive |
| Manufacturer Part Number | 9603 |
| Model | Spark Plug |
| OEM Part Number | 9603 |
| Position | Front, Rear |
| Product Dimensions | 10.16 x 17.78 x 22.86 cm; 22.68 g |

## 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)

## 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

### ⭐⭐⭐⭐⭐ Review
*by A***R on 24 September 2018*

Toyota Sienna 2006

### ⭐⭐⭐⭐⭐ Review
*by Q***Q on 1 October 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.

### ⭐⭐⭐⭐⭐ Review
*by B***D on 26 June 2022*

Nice product

## 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

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*Product available on Desertcart Colombia*
*Store origin: CO*
*Last updated: 2026-03-04*