CARFIX

BOSCH SPARK PLUG - (STANDARD)

Bosch — BOSCH SPARK PLUG - (STANDARD) — part number HR9DC

Bosch · Part number HR9DC · NZ$14.00 incl. GST

G'day! For your classic European beauties like the Ford Sierra and Scorpio, plus the trusty Chevrolet Lumina APV, spark plugs are the unsung heroes of your engine, sparking that fuel-air mix for smooth running and top-notch fuel economy. We've got the premium Bosch option right here.

Price

NZ$14.00 including GST. Part number HR9DC.

Fits these vehicles

Description

Spark Plug Swap: Keepin' Your Classic Kiwi Ride Sweet with BOSCH!
> Right then, let's talk spark plugs. These little legends are absolutely vital for getting your engine humming, kicking off that combustion with a perfect spark. But, like all good things, electrodes wear out. When that happens, you're looking at misfires, less grunt, and a thirstier engine – especially noticeable in older beauties like your Ford Sierra or Scorpio, where you might feel a bit of a rough idle or hesitation. Don't let it get you down; a fresh set can make all the difference!
Symptoms That Led You Here
• Engine misfires or rough idling
• Reduced fuel economy
• Difficulty starting the engine
• Loss of engine power or acceleration
• Check Engine Light illumination (though less common in older models)
Will it pass WOF?
While a vehicle won't directly fail a WOF for worn spark plugs, the symptoms they cause (like excessive emissions, rough running, or misfires) can lead to a WOF failure. Ensuring your spark plugs are in good condition contributes to overall engine health and emissions compliance.
DIY or Workshop?
Difficulty rating: 4/10
Estimated time: 1-2 hours (for a 4-cylinder engine)
Tools required: Spark plug socket wrench, ratchet, torque wrench, spark plug gap tool (if not pre-gapped), dielectric grease.
Expert Recommendation
Replacing spark plugs is a fundamental maintenance task that restores engine performance, improves fuel efficiency, and reduces emissions. Worn plugs can put extra strain on other ignition components, leading to more costly repairs down the line. The BOSCH HR9DC spark plug is an excellent choice, known for its durability and consistent performance, making it ideal for maintaining the reliability of your Ford Sierra or Scorpio. Bob @ CARFIX is always on hand to help you work out exactly what part you need for your classic Ford or Chevrolet. Make sure you head over to Bob's Shop for a chat!
Fitment Notes
These spark plugs are specifically designed for various Ford Sierra and Scorpio models from the late 80s and early 90s, as well as the Chevrolet Lumina APV. Always double-check your vehicle's specific engine code and year to ensure correct fitment, as variations can occur even within the same model range.

---

🛠️ Bob's Pro Tip: Do the Job Right!
> If you're replacing this spark plug, make sure you've got the right workshop prep, protection, and safety gear ready. Taking a bit of extra time and using the proper safety stands and cleaners makes all the difference for a professional result!

🧰 What Else You'll Need:
• Safety First: Always secure your vehicle on heavy-duty safety jack stands before working underneath. Never rely solely on a hydraulic jack.
• Clean Hands: Keep a pack of Nitrile Gloves handy to protect your skin from grease, oils, and chemical sprays.
• Preparation: Have microfibre towels and a suitable parts cleaner nearby to keep components clean during installation.