---
product_id: 275935482
title: "BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Single"
brand: "bosch"
price: "฿11"
currency: THB
in_stock: false
url: https://www.desertcart.co.th/products/275935482-bosch-9603-oe-fine-wire-double-iridium-spark-plug-single
store_origin: TH
region: Thailand
---

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

**Brand:** bosch
**Price:** ฿11
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power your drive with Bosch’s double iridium spark—where performance meets longevity!

## Quick Answers

- **What is this?** BOSCH 9603 OE Fine Wire Double Iridium Spark Plug - Single by bosch
- **How much does it cost?** ฿11 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/275935482-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

- • **Corrosion? Not Here.:** Nickel-plated rolled threads resist corrosion and eliminate the need for anti-seize compounds.
- • **Ignite with Precision:** 360° laser-welded ultra-fine iridium wire ensures lightning-fast, reliable starts every time.
- • **OE Fit, Form & Function:** Meets or exceeds manufacturer specs for seamless compatibility with modern GDI engines.
- • **Plug & Play Performance:** Factory pre-gapped for instant installation—no adjustments, no downtime.
- • **Engineered for Endurance:** Double iridium electrodes deliver 4X longer life than standard plugs—less hassle, more drive.

## Overview

The BOSCH 9603 OE Fine Wire Double Iridium Spark Plug features a 360-degree laser-welded ultra-fine iridium firing pin and ground electrode, reducing voltage requirements by up to 24% and offering 4X longer life than standard copper plugs. With corrosion-resistant nickel-plated threads and factory pre-gapping, it ensures easy installation and reliable OE-level performance across a wide range of modern gasoline engines, including GDI models.

## Description

Full description not available

## 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 |
|---------------|-------|
| Manufacturer | Bosch Automotive |
| Brand | BOSCH |
| Model | Spark Plug |
| Product Dimensions | 10.16 x 17.78 x 22.86 cm; 22.68 g |
| Item model number | 9603_1 |
| Exterior | Machined |
| 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 **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.

## 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 Thailand*
*Store origin: TH*
*Last updated: 2026-01-26*