---
product_id: 100341960
title: "BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Single"
brand: "bosch"
price: "S$37"
currency: SGD
in_stock: true
url: https://www.desertcart.sg/products/100341960-bosch-9603-oe-fine-wire-double-iridium-spark-plug-single
store_origin: SG
region: Singapore
---

# 4X longer service life 0.6mm ultra-fine wire firing pin 360° laser welded durability BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Single

**Brand:** bosch
**Price:** S$37
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your drive with Bosch’s double iridium power — performance that lasts and impresses.

## Quick Answers

- **What is this?** BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Single by bosch
- **How much does it cost?** S$37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/100341960-bosch-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 Withstand:** 360° continuous laser weld fuses iridium to base, maximizing corrosion resistance and durability.
- • **Precision Ignition:** Ultra-fine 0.6mm wire firing pin ensures superior ignitability and peak engine performance every time.
- • **GDI-Ready Performance:** OE-matched spark position optimized for modern Gasoline Direct Injection engines, unlocking your ride’s full potential.
- • **Plug & Play Simplicity:** Factory pre-gapped and nickel-plated threads mean no anti-seize needed—easy install, zero hassle.
- • **Endurance that Outlasts:** Double iridium electrodes deliver 4X longer lifespan than standard plugs, keeping your engine firing strong.

## Overview

Bosch 9603 OE Fine Wire Double Iridium Spark Plug features double iridium electrodes for 4X longer life, a 0.6mm ultra-fine wire firing pin for enhanced ignitability, and a 360° laser weld for superior durability. Pre-gapped and nickel-plated for easy installation, it’s engineered for modern GDI engines to deliver reliable, high-performance ignition.

## 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.

## Features

- Double Iridium firing pin and ground electrode inlay provide 4X longer service life compared to standard copper plugs
- 0.6mm fine wire firing pin provides superior ignitability and performance
- 360° continuous laser weld fuses corrosion resistant iridium firing pin to base for increased durability
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Bosch |
| Brand | Bosch |
| Product Dimensions | 10.16 x 17.78 x 22.86 cm; 22.68 g |
| Item model number | 9603_1 |
| Manufacturer part number | 9603 |
| OEM Part Number | 9603 |
| Position | Front, Rear |
| Item Weight | 22.7 g |

## Product Details

- **Brand:** Bosch
- **Core material:** Iridium
- **Thread size:** 1.25mm
- **Top material type:** Nickel
- **Vehicle service type:** Car

## Images

![BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Single - Image 1](https://m.media-amazon.com/images/I/71tqIg+ETUL.jpg)
![BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Single - Image 2](https://m.media-amazon.com/images/I/7146NFBC01L.jpg)
![BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Single - Image 3](https://m.media-amazon.com/images/I/610qEbONlPL.jpg)

## Available Options

This product comes in different **Number Of Items** 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.

## 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
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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-01-25*