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  1. Spare Tire Locks
  2. Tow Ready
  3. Universal Application Lock
  4. Keyed Unique
Spare Tire Lock

Spare Tire Lock

Item # FSTL0603
Retail:$46.26
Our Price: $20.18
You Save: 56%
Spare Tire Locks
Shipping Weight: 0.48 lbs
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Fits over wheel studs up to 9/16" in diameter and features a removable plug to allow longer wheel studs to protrude. Positive locking feature prevents lock from turning. Ideal for use with U-bolt-style carriers. Great Prices for the best spare tire locks from Tow Ready. Spare Tire Lock part number FSTL0603 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (146)
  • Q & A (0)
  • Videos (2)
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Tow Ready Spare Tire Locks - FSTL0603

  • Universal Application Lock
  • Tow Ready
  • Keyed Unique

Fits over wheel studs up to 9/16" in diameter and features a removable plug to allow longer wheel studs to protrude. Positive locking feature prevents lock from turning. Ideal for use with U-bolt-style carriers.


Features:

  • Removable plug allows for longer wheel studs
  • Locking tab's positive locking feature keeps lock from turning
  • Popular model is perfect for U-bolt-style spare-tire carriers


Specs:

  • Fits over wheel studs up to 9/16" in diameter


STL0603 Spare Tire Lock




California residents: click here


Video of Spare Tire Lock

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Fulton Spare Tire Lock Review

Today we're going to be taking a look at the Fulton Spare Tire Lock. This is part number FSTL0603. This is a metal construction spare tire lock designed to go right over your current lug nuts and secure it in place. We've got our boat trailer spare here. We'll be putting it on in just a second so you can see how it works. It comes with two keys. It's got a removable base.

This is going to accommodate all the way up to a 9/16 of an inch wheel stud and for the longer wheel studs, the cap's removable so that stud's going to be able to come right through. We won't have any worries about getting to a point to where we can't get our lock onto our tire. There's a locking tab here on the rear. When installed that's going to prevent this lock from moving or turning. It works great with both the wheel studs and with the U-bolt style spare carriers so you won't have a big issue with getting this to work on most of your spare tire setups. As far as installing it goes, we're just going to remove one of our lugs. With that off, we'll separate our rear plate.

That goes right over the stud and our lug nut goes right back on. It's got a cone pattern in there which is great. It allows that lug nut to seat right in there where we want it and we just tighten it back down. Now we'll take our lock and cover, place it on, turn the key and just like that our spare tire is secured to our trailer. We're not going to have to worry about it missing. Now that we've gone over all the features and we've seen how it works, that will complete today's look at the Fulton Spare Tire Lock, part number FSTL0603.

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Customer Satisfaction Score:


Customer Reviews

Spare Tire Lock - FSTL0603

Average Customer Rating:  4.6 out of 5 stars   (146 Customer Reviews)

Fits over wheel studs up to 9/16" in diameter and features a removable plug to allow longer wheel studs to protrude. Positive locking feature prevents lock from turning. Ideal for use with U-bolt-style carriers.

by:

Piece of junk…

Etrailer Expert

Katrina D.

2/28/2024

That's not good to hear at all. What's wrong with it? Is it not working like expected? Did it arrive in bad condition? Can you please elaborate on what makes it junk?



by:

Excellent customer service ! Items as described. Quick shipment.



by:

At first when I received the item it look pretty well made. But when I was installing it I noticed a crack on one of the hardware. So I called etrailer back and spoke with Teresa on customer service. She just ask few questions and she immediately send me a brand new one. That’s 5 star on customer service. And she even told me not to return the defective item. So etrailer Big thumbs up on that. Now hope this product does its job from thieves.



by:

Happy with the looks and function of the spare tire lock on my Maxey utility trailer. Design is innovative and I had no problems installing it.



by:

Great product, good price, perfect size, easy to install, installed it on my boat trailer spare now I don't have to worry about the tire being removed without a struggle.



by:

It arrived a few days after I ordered. Installed quick. It’s to deter a quick theft. If a person really wanted to take the tire it’s not going to stop a large hammer.



by:

They work as advertised. They are holding up great.



by:

Works as promised but my particular wheel has deep narrow sockets and did not allow attachment from the outside. Attaching from the inside solved the problem with equal security. Simple and effective. Love it.



by:

Been on my trailer for a year. Still looks new and has not loosened up at all. Still doing its job.

Ryan

11/16/2022

Still going strong. Ive never had to tighten it after the initial installation and the trailer has been on several trips and some very rough trips.



by:

Very satisfied with service and product.



by:

Works good



by:

Lock fits and secures the spare wheel to the camper perfectly. I am very pleased with the product.
As usual, I can't say enough about the customer service I have received.
I will certainly continue to buy from etrailer.
Thanks again.

Daniel B.

2/11/2018

I am still pleased with the lock. I love the peace of mind, knowing that my spare cannot be easily stolen.



by:

Really like these spare tire locks. Well built and easy to use. I recommend
this lock, and would buy again.

Wayne G.

2/25/2018

Working great. Easy to use.



by:

First of all the packaging this item arrived in was open on one end but the item looked fine, no scratches, dings or signs of wear. I carried it outside to my driveway and removed 1 of the 2 lug nuts from my trailer spare tire mount, I placed the smaller back half of the spare tire lock over the lug and hand tightened the lug nut until it made contact and seated against the spare tire. I then placed my 4-way lug wrench over the lug nut and gave it a free spin. The free spin was only about 1 and 1/2 spins since I had already hand tightened the lug nut. I began to turn the lug wrench by hand, 1/2 turn, feeling no resistance so I turned another 1/2 turn, still no resistance. On the 3rd 1/2 turn and still feeling little to no resistance, the back half of the spare tire lock spread and cracked which would not allow the locking cap to fit over it. after further inspection of the crack, I could see this was made of a soft pot metal (see uploaded image) and not of a stronger metal such as steel. This item broke under minimum tension, no way near the type of tension/torque one would use to install a lug nut on a mounted tire you would be driving on. I feel my money was wasted on this particular product. I have always been satisfied if not overjoyed with all of my past purchases from etrailer.com and am not blaming etrailer.com for this products shortcomings.



by:

This will slow down thieves but could possibly be pryed off. Overall a good product and easy to put on. Etrailer shipped fast.. thanks



by:

I ordered two mounted tires and wheels and two Fulton spare tire carriers. The tires were shipped in two different boxes. The spare tire carriers were put one each in the box containing the tire/wheels. When I opened the boxes, both of the spare tire carrier packages had come open in transit and the contents were scattered inside the tire boxes. One was fine and all parts were there and in the second, the keys for the spare tire carrier lock were missing. I called etrailer and told the representative, Ericka, what occurred. They were super helpful, professional and friendly. etrailer is sending me a replacement. Fantastic customer service! I highly recommend this company!



by:

At first I was a bit dismayed that the tire/wheel combo I ordered was unavailable. But I was offered a suitable substitute and the entire order was rapidly dispatched and received in a timely manner. I was very pleased with my order and the various items... so much so I immediately decided to order another wheel/tire combo for one of my trailers and use the two nice new wheels/tires intsead and use one of the old originals as the spare! Great products, fast service, super helpful customer service and they know their products! Thanks etrailer! I'll be doing business with you again real soon!



by:

I have an odd single 1/2" 13 pitch stud for my trailer's spare tire mount. I used a nylock nut nut to mount the spare. I purchased this lock to keep it secure. It appears to be working fine. I don't know that it is as secure as a traditional locking lug nut someone would have to work at it to get it off without the key.



by:

My Pics



by:

Due to the virus and not using the trailer much, the lock is still there and works OK. I really can't give a good review but so far so good. All the products I have bought from you have been fine, with the exception of the previuos wheel lock that was not a good design but you guys replaced for free!



by:

This has been one the best investments I have made. My spare is safe and yet so easy for me to access. I give this lock a 5 star rating. It'd quality made and well worth the price.

James

9/8/2019

This spare tire lock has been outside in the weather ffg or one year. It is still holding up. It has no wear and tear on it at all. The product is still doing the job and still a very good investment. A quality product!



by:

Could not leave rubber plug in that seals out water stud hit plug would not go alway on. Have to work with lock to get on & off does not fit very well. You have to make sure properly locked before removing key. Used this on my boat trailer



by:

I have another just like it on a different trailer. Wished I could have gotten it keyed alike, however.

Robert C.

10/9/2020

works great, but would be better if keyed alike. I have two, but need more.



by:

I think this will do the job. With the lugnut tightened down, you cannot turn this device with your hands, and even if you could turn it, I don't think you could get the lugnut off. Also, I like how the cover is a bit loose and yet covers the nut completely. My bolt did protrude slightly, so it is good that the rubber cover is removable for the longer bolts.



by:

Shipping was perfect! The brack was as described and worked as planned. It came with two bolts and a lock, which slid over the bolt to prevent someone from just unbolting and taking the tire. I bought a second lock for the other side. Call me paranoid. It isn’t much of a deterrent but the more I can aggravate the bad guy the better. Thanks etrailer for providing these needed products at a fair price.


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Show More Reviews

See what our Experts say about this Tow Ready Spare Tire Locks

  • Need Lock to Keep Thieves from Stealing the Spare Tire on my Honda CRV
    As long as the wheel stud of your Honda CRV's spare tire carrier is no larger in diameter than 9/16 of an inch and the lug nuts are less than 1 inch tall, the Fulton Spare Tire Lock, # FSTL0603, will work for you. This lock has a tab that is placed behind the lug nut of your spare tire and then the lock is placed over the lug nut. The enclosed and locked lug nut prevents the wheel from being stolen or removed without a key. If you have 1/2 inch diameter wheel lugs, another option you may...
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  • Lock for Use with Trailer Spare Carrier # CE22011Z-11050-2
    For just the lock you are looking for with the # CE22011Z-11050-2 you'd want the # FSTL0603.
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  • Recommended Spare Tire Lock for Trailer
    The Spare Tire Lock # FSTL0603 only fits lugs up to 9/16 inch. The 3/4 inch you referenced will be too large. To lock the spare you will leave one of the bolt off and then use the etrailer Spare Tire Lock for 1/4" to 7/8" Thick Rims - Keyed Alike # e98892 thru the carrier and the wheel. The lock stud diameter will be 1/2 inch and yet the ability to tighten and lock will not be an issue with the other bolts in place.
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  • Will Fulton Spare Tire Lock # FSTL0603 Fit on Fulton Hi-Mount Spare Tire Carrier # FSTC1000301
    Yes, the Fulton Spare Tire Lock, part # FSTL0603, that you have referenced, will fit on the Fulton Hi-Mount Spare Tire Carrier, part # FSTC1000301. The bolts that are used to hold the wheel onto the Fulton spare tire carrier are 1/2-inch size bolts. The Fulton spare tire lock will fit on a wheel stud up to 9/16-inch diameter.
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  • Spare Tire Lock Recommendation for Toyota Land Cruiser
    You'd have to go with a spare tire lock like the part # FSTL0603 as the BOLT part # BL5922986 will only key to a Jeep style of key.
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  • Can the Offset Trailer Spare Tire Carrier # DL22120 be Mounted Horizontally
    As long as you have the necessary clearance on your trailer to fit your spare tire onto this Offset Trailer Spare Tire Carrier, part # DL22120, and you secure it well you should have no problem installing this # DL22120 in any direction that you wanted. You may also be interested in purchase a Spare Tire Carrier Lock, part # FSTL0603.
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  • Keyed Alike Wheel Locks for Triple Axle Trailer
    We do carry wheel locks which can be keyed alike, but they are not locking lug nuts. The Blaylock EZ Trailer Wheel Lock for wheels that are 15" - 20" # BLEZ-302 can be keyed alike by choosing that option in the "Keyed Alike" drop-down menu. It is not for spare tires however, so you would need an extra key for one such as the # FSTL0603. The upside is that you would not have to use seven of the Blaylock Wheel Locks which is going to save you some time when it comes to locking and unlocking...
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  • Wheel Lock for Spare Tire and 1/2"-13 Threaded Stud
    We have spare tire lock # FSTL0603 that you could use. It works with wheel studs up to 9/16 inches. I have included a link to a video review of this lock for you.
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  • Compatibility of Tow Ready Spare Tire Lock with Fulton Hi-Mount Spare Tire Carrier
    The Fulton Hi-Mount Spare Tire Carrier # FSTC1000301 is a great choice for a spare tire carrier. The bolt that holds the wheel onto the spare tire carrier is a 1/2 inch - 13 bolt that is 1-1/2 inches long. Since the bolt is smaller than 9/16 inches, the Tow Ready Spare Tire Lock # FSTL0603 will work well with the spare tire carrier. This spare tire lock will keep the wheel secured to the spare tire carrier. I've attached a review video of this lock for you. The Wheel Lock Set # RG01-150...
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  • Recommended Wheel Locks For Boat Trailer With 1/2"x13 Studs
    I may have an option for you but the only locking 1/2" lugs nuts we offer are the Wheel Lock Set for 1/2" Wheel Bolts # RG01-150 which are 1/2"x20. The only option for your 1/2"x13 studs would be to use the etrailer Trailer Wheel Lock # 288-02020 which will work with tires that are 6-3/4" - 10-1/2" wide or for spare tires you can use the Spare Tire Lock # FSTL0603 which will work with studs up to 9/16 in diameter. The best way to determine the cost and availability of these items is to...
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  • Recommended Lock For Brophy Rigid Mount Spare Tire Carrier BR56VR
    To secure your spare tire to the Brophy Rigid Mount Spare Tire Carrier # BR56VR I recommend using the Tow Ready Spare Tire Lock # FSTL0603 which will go over the stud and lock the nut on to the trailer. The metal construction of the # FSTL0603 makes it so it cannot be just broken off of the carrier. I included videos for both of the products mentioned for you to take a look at.
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  • Recommended Spare Tire Carrier For 5 On 4-3/4 Inch Bolt Pattern
    For your PJ 14 foot trailer with the spare tire 5 on 4-3/4 inch bolt pattern, I recommend the Ultra-Fab Folding Spare Tire Carrier for Trailers and RVs - Bumper Mount # UF15-954730 which is a confirmed fit for your bolt pattern and will fit 4 inch wide box bumpers or frames. You may also want to consider a spare tire lock like # FSTL0603.
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  • Does the Wheel Need to Be Removed While Not in Use on the Dutton-Lainson Spare Tire Carrier
    I checked with my contact at Dutton-Lainson and unfortunatly neither they nor we have a photo of the Trailer Spare Tire Carrier and Dolly Bracket by Dutton-Lainson part # DL22144 installed and in use on a trailer at this time. With that being said the carrier/tire does not need to be removed while not in use. The tire can simply be left on the carrier until the time in which it is needed arises. The above carrier/dolly works with most 8"-12" wheels that have either a 4 or 5 bolt pattern....
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  • What Wheel Stud Diameters Are the Fulton and Master Lock Spare Tire Lock Designed For
    The Fulton # FSTL0603 is constructed from hardened steel and fits on wheel studs up to 9/16" in diameter.
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  • Spare Tire and Lock Recommendations Between Fulton and Dutton-Lainson
    Lock # FSTL0603 will fit both spare tire carriers # FSTC1000301 and # DL22120. It is designed to fit 1/2 inch wheel studs.. For a spare tire carrier I prefer the Dutton-Lainson carrier # DL22120 because it can fit taller frames (up to 3x5 inch) should you ever need it to and Dutton-Lainson does make a quality product.
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  • Recommended Spare Tire Mount for 6-Lug Wheels
    The Fulton Economy Spare Tire Carrier - Lockable # FETCLB0201 is not compatible with 6 lug wheels. It is only compatible with 4 or 5 lug wheels. For your 6 lug wheels, I recommend the Bumper Mounted Tire Carrier - U-Bolt Mount # TR-1 or the Ultra-Fab Folding Spare Tire Carrier for Trailers and RVs - Bumper Mount # UF15-954730. Either of these will work with 6 lug wheels. With either of these, you can use the Fulton Spare Tire Carrier Lock # FSTL0603 to secure your investment.
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  • Horse Trailer Spare Tire Carrier Recommendation
    It sounds like you are looking for something like the Spare Tire Carrier # 413200 as it fits what you described very closely. For a lock you would want the part # FSTL0603.
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  • Spare Tire Mount Recommendation on a Trailmaster Tritoon Boat Trailer
    The best place to mount your spare tire on your Trailmaster Tritoon Boat Trailer is on the frame just opposite of your trailer jack. I recommend using the CE Smith Offset Spare Tire Carrier # CE27310G which will fit trailer frames up to 3-1/2 inches wide and 4 inches tall. You may also want to consider a lock like the Spare Tire Carrier Lock # FSTL0603 to deter theft.
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  • Bumper Mount Tire Carrier Needed for a 14 Tire
    The Stromberg Carlson Spare Tire Carrier # TR-1 isn't compatible with a 14" tire but we do have the Ultra-Fab Folding Spare Tire Carrier # UF15-954730 is compatible with a 14" tire. It is also compatible with most 5, 6, and 8-lug bolt patterns besides a 5 on 5" bolt pattern. I also recommend installing the Spare Tire Carrier Lock # FSTL0603 to deter theft of your tire. Review videos have been linked for you to check out as well.
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  • Spare Tire Lock for Jeep 2013 Wrangler Unlimited
    If the wheel stud of the spare tire carrier is no larger in diameter than 9/16 of an inch, the Fulton Spare Tire Lock you mentioned, part # FSTL0603 should work just fine for the spare tire on your Wrangler Unlimited.
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  • Can You Just Buy The Lock?
    Yes just the lock portion of this is available as Spare Tire Lock part # FSTL0603 . This is designed to work on any 1/2" spare tire stud. The first portion of it will go behind the lug nut then the lock portion will fit over it to secure it. I've included the video I did on it to help you see exactly how to install it.
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  • What is Fulton Lock # FSTL0603 Made Of and How To Prevent Theft of Fulton Tire Carrier # FSTC1000301
    Yes , the Fulton Spare Tire Lock, part # FSTL0603, is made of a hardened steel, which is very hard to cut or break. You can install the Fulton Hi-Mount Spare Tire Carrier, part # FSTC1000301, using a Loctite Threadlocker, part # LT37423. This is a liquid that will lock the nuts to the bolts and prevent anybody from removing them. To disassemble the nuts and bolts will require the use of heat. Making it time consuming for the thieves to take your item is the best deterrent against theft.
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  • Can Demco Spare Tire Carrier Bolts for Holding Spare Tire be Swapped Out
    If you wanted to swap out the bolts from the Demco Spare Tire Carrier for Bolt-On Swivel Jack # DM15853-52 that hold the tire for something you already have I see no issues with doing this as long as you know the bolts are a strong enough material to hold the spare tire safely while you're on the road. You may consider adding a lock like the Spare Tire Lock # FSTL0603 to discourage tampering with the spare tire. This lock fits 9/16" wheel studs so you'll need to verify that on your end. Attached...
    view full answer...
  • Can Spare Tire Carrier Be Mounted On Trailer Wall
    From the photo you sent, it looks like you have aluminum trailer walls, so the first thing you will want to consider is the strength of the walls. Since the Offset Trailer Spare Tire Carrier, part # DL22120 is designed to be mounted on a trailer tongue or frame, you will want to make sure that the location you choose is strong enough and able to handle the weight. You will want to consider strengthening the wall by reinforcing with a metal plate on the inside of the wall between the brackets...
    view full answer...


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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jeff D
Expert Research:
Jeff D
Employee Reno H
Expert Research:
Reno H
Employee Andrew L
Video by:
Andrew L
Employee Randy B
Installed by:
Randy B
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C

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