2009–2020 Nissan 370Z

2009-2020 Nissan 370Z — Wiper Blade Replacement

By Ray Delgado ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026

🔧 Easy 10 minutes $66 DIY

Quick answer: Wiper Blade Replacement on a 2009–2020 Nissan 370Z is rated Easy and takes about 10 minutes. You'll need 2 tools for this job, and parts cost about $66. This guide walks you through the full job step by step, including the mistakes to avoid.

Quick Video Tutorial

Parts You Need

Total Cost

$65.98

Part Name	Part Number	Price	Buy
Driver wiper blade, 21"	Bosch 21A	$32.99	Amazon
Passenger wiper blade, 19"	Bosch 19B	$32.99	Amazon

About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.

💡 Pro tip: Order all parts at once to save on shipping

Step-by-Step Instructions

Follow these steps carefully

Confirm 21/19 and skip the rear — there is not one

One caveat: a single fitment chart lists 20/18 instead of 21/19, so measure your old blades before buying; the majority of sources agree on 21/19. Park on level ground, ignition fully off.

Lift the arms straight off the glass

As with any car, never let a raised arm snap back onto the glass; the 370Z's raked windshield will show every chip right in your line of sight.

🔧 Mechanic's note — Tom Becker

The 370Z eats wiper blades for breakfast. I keep a spare set handy — the low windshield is brutal on rubber.

Slide the old blades off the J-hooks

Rotate each old blade about 90 degrees to its arm, press the small locking tab on the saddle, and slide the blade down and out of the J-hook.

Wash the windshield while the blades are off

Check the washer jets on the hood while you are there — a clogged or mis-aimed jet leaves a dry stripe that no blade can fix, and clearing it with a pin takes ten seconds.

Hook on the new blades — 21 goes driver side

Feed each J-hook through the new blade's saddle, rotate the blade flat against the arm, and push until the locking tab clicks audibly. The 21-inch blade goes on the driver side. Tug each blade firmly along the arm to confirm the lock.

Test with washers, watching the long driver blade

Lower both arms gently by hand, switch the ignition on, and spray the washers through a full sweep. Confirm the passenger blade does not overtravel onto the A-pillar trim.

Replacement interval for the Z34

Every 6 to 12 months for the pair. If the driver blade starts streaking in your direct sightline, replace the pair early; on a sports car you drive for the view, smeared glass defeats the purpose.

All Done!

Test your repair before closing everything up. If something doesn't work right, double-check your steps.

⚠️ Common Mistakes to Avoid

• Buying a rear wiper blade out of 350Z habit — the 370Z has no rear wiper.
• Reaching for the 350Z's 20/18 sizes instead of the 370Z's 21/19.
• Forcing the blade off the hook without pressing the locking tab, cracking the new saddle.
• Letting a raised arm snap back onto the raked windshield.

Tools You'll Need

No tools required — J-hook blades are tool-free Tape measure (confirm 21/19 — one chart lists 20/18, and 350Z muscle memory says 20/18 too) Glass cleaner and a microfiber cloth Small flathead screwdriver (optional, for a stiff locking tab)

⚠️ Safety First!

• Switch the ignition fully off before lifting the arms.
• Never let a bare wiper arm snap back against the glass — hold it or cushion the windshield.
• Always wet the windshield with the washers before the first test wipe; never run new blades dry.