CARFIX

Bosch Spark Plug

Bosch — Bosch Spark Plug — part number FR9HC

Bosch · Part number FR9HC · NZ$15.00 incl. GST

Got an older Jeep or Chrysler like a Wrangler, Cherokee, Grand Cherokee, or even a Vision? Spark plugs are the unsung heroes for starting and keeping things smooth.

Price

NZ$15.00 including GST. Part number FR9HC.

Fits these vehicles

Description

Spark Plug TLC for Your Old Girl — Powered by BOSCH
> Spark plugs are what give your engine that initial spark to get the fuel burning. Over time, they get tired from all the heat and carbon build-up, especially in those older Jeeps and Chryslers we love to thrash around the backblocks or even just use for the daily cafe lunch run. When they're past it, you'll notice misfires and your engine won't be singing the same tune.
Signs Your Spark Plugs Are Toast
• Engine's misfiring, making it idle rough and hesitate like it's had too much caffeine.
• Fuel economy's gone down the gurgler.
• Hard to start, especially on those frosty mornings.
• Check engine light's on, giving you the evils.
• Feels sluggish when you put your foot down.
Will it pass WOF?
Yep, as long as your engine's purring nicely and not chucking out too many fumes because of dodgy plugs. Misfires are a surefire WOF fail, mate.
DIY or Workshop?
Difficulty: 4/10
Estimated Time: 1-2 hours
Tools Required: Spark plug socket, ratchet, extension, torque wrench, spark plug gap tool.
Expert Recommendation
Swapping out your spark plugs is a no-brainer to keep your Jeep Wrangler, Cherokee, Grand Cherokee, or Chrysler Vision running sweet as. Old plugs mean poor performance and you'll be pouring more fuel into that thirsty beast. The BOSCH plug (FR9HC) is a top choice, but we've got others. Bob at CARFIX is always here to help you find the exact part you need for your Jeep or Chrysler. Pop into Bob's Shop for a yarn!
🛠️ Bob's "Get It Done Right" Companion Checklist
Before you even think about reaching for that spanner, let's sort out the prep work. Safety first, always! Grab yourself some safety glasses to keep the grit out of your peepers, and a pair of nitrile gloves to keep your hands clean. Spark plugs can get a bit grimy, so these are a must. Remember, safety is always the main thing!

Fitment Notes
Make sure the spark plug gap is spot-on for your engine. Some models use different plugs depending on the engine or year.

Bob @ CARFIX is always on hand to help you work out exactly what part you need for your Jeep or Chrysler. Make sure you head over to Bob's Shop for a chat!

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🛠️ 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.