Silicone Wiper Inserts for the OEM Wiper Blade
 

Sharing some little-known facts about the wiper blades on the G37. It’s possible to beat the man and refill your wiper blades with an aftermarket silicone rubber insert.

Warning: the information below is for a 2013 G37 Coupe; sedan versions have a different passenger-side wiper blade length.

The OEM wiper blade and insert are made by Mitsuba. The G37 Sport Coupe uses these Mitsuba insert part numbers, which you can find molded on the wiper insert itself:

• Mistuba MOB2-S2-085 (425mm, passenger)
• Mitsuba MOB2-S2-105 (650mm, driver)

It’s a little-known fact that PIAA makes a silicone rubber insert that will fit the G37 OEM wiper blade. You’ll have a difficult time finding them in the United States, though. However, with the aid of Google and eBay, you can probably find them like I did. Note, these replacement inserts do not have the two metal rails, which you’ll need to reuse from your existing inserts. The replacement procedure is simple and doesn’t require any tools. Look at the bottom of the wiper blade and you’ll find a small arrow pointing in the direction of installation. Pull the existing old insert in the direction opposite of the arrow. Swap the two metal rails onto the new insert. Slide the new insert into the wiper blade in the direction of the arrow.

• PIAA SMR425 (425mm, passenger)
• PIAA SMR650 (650mm, driver)

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Here’s one reason for refilling the OEM wiper blade. Look carefully at the design, shown below, and you’ll notice that the wiper arm attaches to the side of the wiper blade. This keeps the wiper arm tucked down-low against the glass, out of the view of the driver and out of the air stream. It seems that all aftermarket wiper blades are top-mount style, although, PIAA offers an adapter (P/N-94005 model AVH-1E) for the Aerovogue wiper blade. TricoFlex seems to have a semi-side mount design, with which I don’t have any personal experience.

https://cimg0.ibsrv.net/gimg/www.myg...b2a4fc4425.jpg
The wiper arm is low, against the glass.

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Notice the wiper arm mounted to the side of the wiper blade.

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You can't see the wiper arm, can you Russ?

If you’re looking for the Infiniti/Nissan equivalent part numbers, you’ll have to search online. It seems that they’ve changed over the year or two since I last shopped for them. Additionally, recently I’ve read two different forum posts that Nissan is moving away from providing refills in favor of selling an entire blade assembly. However, don’t despair about Nissan possibly no longer supplying wiper inserts. As reported by Guy Gourdet here, Honda-branded wiper inserts also fit the G37 OEM wiper blade:

• Honda 76632-SWA-J02 (425mm, passenger)
• Honda 76622-STK-A02 (650mm, driver)

Enjoy!

I believe you're right. The sedan has a different passenger-side size, however, I don't know what that is.

i just bought some oem refills on ebay some months ago. where did you get the info the oem refills are being discontinued?

Great info, thanks for sharing :biggthumpup:

Do you happen to have the part number for the OEM blades (not just the refills)? My car was used when I bought it years ago and didn't have them.

Just did it on my car, fits like a glove for 2013 G37xS coupe, thanks.
As mentioned, it's a little hard to source these refills. For those interested i got mine from here:
https://global.rakuten.com/en/store/...m/piaa-smr425/
https://global.rakuten.com/en/store/...m/piaa-smr650/
Delivery from Japan was like 3 days.

17 inch for the coupe and 16 inch for the sedan.

For the coupe 28890JK65C, passenger 28890JK67A. Sedan passenger 28890JK66A. Sedan refills 288951ME5C, passenger 28895JK66A. Coupe passenger 28895JK67A

^can you please specify which years for sedan?

I ask because I recently ordered 28895-CB08C (driver) and 28895-JK61A (passenger), which didn't fit my 2013 sedan (the base of the refills were incorrect shape to properly seat into the wiper arms).

Thank you mummy2! Got that info for when my Icons go out.

The refills only fit the factory blades.