Product Description
Gorilla 1921SD-KEY Black 6 Spline Lug Nut Replacement Socket for Gorilla & Muteki Lug Nuts
Replace your lost, damaged, or worn lug nut key with this genuine Gorilla 1921SD-KEY Black 6 Spline Lug Nut Key. Designed for Gorilla small diameter 6 spline lug nuts, this replacement socket is also commonly used with many Muteki 6 spline lug nut sets.
Manufactured from forged chrome vanadium steel, the Gorilla 1921SD-KEY is engineered for strength, durability, and precise engagement with spline drive lug nuts. The dual hex design allows use with either a 3/4-inch or 13/16-inch socket or lug wrench for easy installation and removal.
If you've misplaced your original lug nut key, this OEM Gorilla replacement is the perfect solution to get your wheels back off safely without replacing your entire lug nut set.
FREE SHIPPING and FREE RETURNS are included with every order from A2i Wheel & Tire.
Product Features
- Genuine Gorilla Automotive Product
- Part Number: 1921SD-KEY
- Black Finish
- 6 Spline Design
- Fits Gorilla Small Diameter 6 Spline Lug Nuts
- Common Replacement for Muteki 6 Spline Lug Nuts
- Forged Chrome Vanadium Steel Construction
- Dual 3/4" and 13/16" Hex Drive
- OEM Replacement Socket
- Precision Machined for Secure Fit
- Easy Installation and Removal
Specifications
- Brand: Gorilla Automotive
- Part Number: 1921SD-KEY
- Finish: Black
- Spline Count: 6
- Drive Size: Dual 3/4" & 13/16" Hex
- Material: Forged Vanadium Steel
- Application: Small Diameter Spline Lug Nuts
- Quantity: One Key
Fits
- Gorilla 6 Spline Lug Nuts
- Muteki 6 Spline Lug Nuts
- Small Diameter Tuner Lug Nuts
- Aftermarket Wheels Requiring 6 Spline Keys
Important: Verify your lug nuts use a 6 spline small diameter pattern before ordering. This key will not fit 7 spline, 8 spline, spike, or other locking lug nut designs. :contentReference[oaicite:2]{index=2}
Common Vehicle Applications
This key is commonly used with aftermarket wheels installed on:
- Honda Civic
- Honda Accord
- Subaru WRX & STI
- Mitsubishi Lancer Evolution
- Toyota Supra
- Toyota GR86 / 86
- Scion FR-S
- Nissan 350Z & 370Z
- Mazda Miata
- Many Custom Cars & Sport Compacts
Vehicle fitment depends on the lug nuts installed—not the vehicle.
Why Buy From A2i Wheel & Tire?
- FREE Shipping
- FREE Returns
- Thousands of Wheel Accessories In Stock
- Fast Same-Day Shipping
- Expert Fitment Assistance
- Trusted Since 2009
- Authorized Wheel & Tire Dealer
Need help identifying your lug nut key?
Call or Text 616-330-6600. Our experts can help identify the correct replacement before ordering.
Frequently Asked Questions
What lug nuts does the 1921SD-KEY fit?
It fits Gorilla small diameter 6 spline lug nuts and is commonly used as a replacement for many Muteki 6 spline lug nuts.
Will this fit every 6 spline lug nut?
No. Always compare the spline pattern and outside diameter of your existing key before ordering.
Can I use an impact gun?
Gorilla recommends using hand tools rather than impact tools to maximize key life.
What socket sizes fit this key?
The key accepts both 3/4-inch and 13/16-inch hex sockets.
Is this a genuine Gorilla product?
Yes. This is a genuine Gorilla Automotive replacement lug nut key.
Do you offer Free Shipping and Free Returns?
Yes. Every order from A2i Wheel & Tire includes FREE Shipping and FREE Returns.
