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  1. Trailer Hitch Lock
  2. Fastway
  3. Fits 2 Inch Hitch
  4. Standard Pin Lock
  5. Keyed Unique
  6. 3-5/8 Inch Span
  7. 3-7/8 Inch Span
Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series Ball Mounts
Fastway

Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series Ball Mounts

Part Number: FA86-00-3660
In Stock
$41.23
Retail:$55.47
You Save: 26%
Trailer Hitch Lock
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Designed for your Flash E Series ball mount, this lock set includes a 1/2" lock to replace the adjustment pin that holds the ball mount platform in place on the shank, and a 5/8" lock to secure the ball mount in your 2" receiver. Great Prices for the best trailer hitch lock from Fastway. Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series Ball Mounts part number FA86-00-3660 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Fastway Trailer Hitch Lock - FA86-00-3660

Highlights

  • Robust Security: Hex-lock design resists picking, with two keyed-alike tube keys.
  • Corrosion Resistance: Chrome-plated finish and rubber dust caps prevent rust.
  • Versatile Application: Fits Fastway Flash E Series ball mounts and 2" hitches.
  • High Capacity: Supports up to 10,000 lbs trailer weight and 1,000 lbs tongue weight.
  • Custom Fit: Includes a 5/8" and 1/2" pin for hitch receiver and adjustment lock.
  • Weather Resistant: Steel construction with weather-resistant features for durability.

Features to know about

Never Worry About Theft Again: Secure Locking Mechanism

Keep your investment safe with the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set. Designed specifically for Flash E Series ball mounts, this set includes a 1/2-inch lock for the adjustment pin and a 5/8-inch lock for the ball mount in your 2-inch receiver. These locks replace standard hitch pins and provide robust security with a tube key lock cylinder that’s harder to pick and resists probing tools. With 2 keyed-alike tube keys, you can easily manage multiple locks on your trailer.

Durability Meets Style: Chrome-Plated Steel Construction

Say goodbye to corrosion and wear with this lock set’s sleek chrome-plated finish. Not only does this enhance the appearance of your hitch, but the solid steel construction ensures it can withstand harsh weather conditions, making it the ideal choice for long-term use. Protect your locks from dirt and water using the included rubber dust caps, which keep everything operating smoothly.

Fit Perfectly Every Time: Designed for Fastway Flash E Series

No more worrying about compatibility issues. These locks are specifically designed to fit Fastway Flash E Series adjustable ball mounts, including models FA42-00-2400, FA42-00-2600, FA42-00-2800, and FA42-00-2900. The lock set's dimensions are crafted to seamlessly integrate with these models, making installation straightforward and ensuring secure attachment with each use.

Versatile Security Solution: Suits Varied Trailer Needs

Whether you’re securing a bike rack, a trailer hitch, or adjusting a ball mount platform, this lock set adapts to numerous configurations with its two different pin sizes. Beyond just theft deterrence, it provides peace of mind by ensuring your gear is firmly held in place, accommodating the dynamic needs of your towing setups.

Peace of Mind with Heavy Load Towing: Built for 10,000 lbs

For those who tow heavy loads, rest assured knowing that this lock set accommodates the Flash E Series' maximum capacity of up to 10,000 lbs trailer weight and 1,000 lbs tongue weight. It’s a go-to choice for trailer owners who prioritize safety and security in their towing gear, ensuring a stress-free journey every time.

Specs

Application

  • Fastway Flash E Series adjustable ball mounts (FA42-00-2400, FA42-00-2600, FA42-00-2800, and FA42-00-2900)

Hitch Receiver Lock

  • Pin diameter: 5/8"
  • Inside pin length: 3-5/8"
  • Overall pin length: 6-3/4"

Locking Adjustment Pin

  • Pin diameter: 1/2"
  • Inside pin length: 3-7/8"
  • Overall pin length: 7"

Warranty

  • Lifetime limited warranty

86-00-3660 Fast Way Hitch Receiver Lock and Adjustment Pin Lock Set for Flash E Series Ball Mounts - 2" Hitches




California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

308 reviews
Designed for your Flash E Series ball mount, this lock set includes a 1/2" lock to replace the adjustment pin that holds the ball mount platform in place on the shank, and a 5/8" lock to secure the ball mount in your 2" receiver.

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See what our Experts say about this Fastway Trailer Hitch Lock

  • What Size Locking Pin Is Needed For Fastway Flash Scale 2-Ball Mount # FA34FR?
    The Flash Scale 2-Ball Mount # FA44FR uses the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set # FA86-00-3660. This vertical locking pin is 1/2" in diameter with a 3-7/8" inside pin diameter.
    view full answer...
  • Can You Find The Replacement Key Number On The Fastway Hitch Locks?
    The only way to know the key number for the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set # FA86-00-3660 is with the key that opens the lock. They do not mark the lock in any way as that would provide a way for thieves to easily identify the key they need to open the lock. You will need to cut the lock off to be able to remove your current pins and install a new lock set. It is recommended to write down the key number in a safe location you will be able to find it if you happen...
    view full answer...
  • Recommended Keyed Alike Locking Pins for B&W Tow and Stow Adjustable Ball Mount
    Absolutely! B&W recommends the Locking Pin Kit from Infinite Rule, which we carry as part # 34061775-D. The locks are manufactured in the USA, are keyed alike and are specifically designed for the B&W Tow and Stow so they fit perfectly. The # FA86-00-3660 locking pins you'd looked at wouldn't have an inside span long enough to fit the Tow and Stow ball mount.
    view full answer...
  • Replacement Keys for Fastway Trailer Hitch Lock
    It sounds like you are referring to the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set # FA86-00-3660. The included keys in this hitch lock are indeed a tube/barrel style key that offers better security than standard key mechanisms. This particular locking set is designed for the Fastway Flash E Series ball mounts like # FA42-00-2600. We do have replacement keys available, if you are just looking for a spare set. You will want to locate the key number for your existing unit. For...
    view full answer...
  • Replacement Key Needed for a Flash E Series Adjustable 2-Ball Mount
    If you don't know the key number for the current lock on your Flash E Series Adjustable 2-Ball Mount # FA42-00-2600 and the previous owner doesn't know the number, you can still use the ball mount but you will need to get the current lock cut off. Once it is removed you can use the Hitch Lock and Adjustment Pin Lock Set # FA86-00-3660 to lock the ball platform AND the ball mount to deter theft.
    view full answer...
  • What Size Adjustment Pin Is Needed for the Flash E Series Adjustable Ball Mount
    If one of the hitch pins you have now has a usable pin length of at least 3-7/8" then you can use it on the adjustment portion of the Flash E Series Adjustable 2-Ball Mount w Chrome Balls part # FA42-00-2600. If not then you would want to use the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set part # FA86-00-3660 as it comes with keyed alike locks for both the hitch pin hole and the adjustment pin hole.
    view full answer...
    Image 1 for
  • Keyed Alike Locking Pin For Ball Adjustment And Hitch Pin On Fastway Ball Mount
    The Fastway Flash E Series Adjustable, Aluminum Ball Mount - 2 Chrome Balls - 6" Drop, 7" Rise - 10K, # FA42-00-2600 you said you have is a fit for 2 inch hitch receivers not 2-1/2 inch hitch receivers. The Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series Ball Mounts, # FA86-00-3660, is a fit for this hitch and its compatible 2 inch receiver opening measured inside to inside. I'm guessing that you measured the receiver from outside vs. the inside opening and this...
    view full answer...
  • Longest Span Hitch Pin Lock
    The closest option we have available to what you are needing is the Blue Ox Trailer Hitch Receiver Lock item # BX88212. This heavy-duty lock features a 5/8" diameter and a usable length of 4-3/8". This usable length represents the longest option we have available for standard locking hitch pins. I have linked a diagram below. We do have a threaded locking pin that spans 4-1/2" but it is for a bike rack. It is the Locking Anti-Rattle, Threaded Hitch Pin for Swagman 2" Hitch Racks item # S64027.
    view full answer...
    Image 1 for
  • Adjustable Ball Mount With 12 Inch Rise for 2 Inch Trailer Hitch Receiver
    There is one adjustable ball mount that has a 12 inch rise, but a couple of others that have an 11 inch rise which you can also use and are less expensive; you just need to be within an inch of the correct rise (or drop). So here are the options for you: - 12 Inch Rise: BulletProof Hitches Adjustable 2-Ball Mount for 2" Hitch - 12" Drop/Rise # HD2012 Also needs InfiniteRule Locking Pins for BulletProof Ball Mount # 34061674-D - 11 Inch Rise: Flash E Series Adjustable 2-Ball Mount - 10"...
    view full answer...
  • Locking Pin Option for Lock N Roll Ball Mount
    We've checked with Lock N Roll in the past and while they don't offer a locking pin for the ball mount portion of the # 336VS511 they do know that the Fastway Hitch Lock part # FA86-00-3660 does fit it.
    view full answer...
  • Is Pin Lock Available for Fastway Adjustable Ball Mount # FA42-00-2600
    Fastway has a lock set part # FA86-00-3660 that locks the ball mount to the vehicle hitch as well as the ball mount platform to the shank of the assembly which would work great for you. Sorry to hear about losing the pin!
    view full answer...
  • Recommended Adjustable Ball Mount With 2-5/16" Hitch Ball for 7,000 lb Trailer
    So the answer to the exact adjustable ball mount you need really depends on the amount of rise or drop you require. If you aren't sure how to measure for that, I've added a link to a help article detailing how to determine that. With that in mind, I'll give you some options, and I also want to point out that adjustable ball mounts do come with both a 2" hitch ball and 2-5/16" hitch ball, though if you never need the 2" ball you can simply store it away. I recommend the Flash E Series...
    view full answer...
  • Is There a 5th Wheel Hitch Lock w/ Longer Span
    We have the Tow Ready Base Rail Lock for 5th Wheel Trailer Hitches # TR63254 which has a diameter of 1/2" and span of 3-1/2". We also have the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set # FA86-00-3660 which is a set. The set is intended for a Flash E series ball mount but does include a lock that is 1/2" diameter and span of 3-7/8".
    view full answer...
  • Recommended Dual Wheel Sidewind Jack For My Travel Trailer
    When it comes to adding a dual wheel sidewind jack to your trailer I would recommend using The Removable Extreme Off-Road Swing-Up Trailer Jack - Dual Wheel - Sidewind - 10 inch Lift - 1,650 pounds # ARK57FR. We sell these currently online and can get them out the door. This dual wheel jack can run through mud or over sharp rocks without getting stuck or damaged. It has an easy-to-grip handle that lets you drop the entire jack tube down for a quick adjustment with minimal cranking. It...
    view full answer...
  • Can Fastway Flash 2-Ball Mount with Built-In Scale Be Used for Towing
    Yes, you can use the Fastway Flash 2-Ball Mount with Built-In Scale # FA54FR! Fastway has rated this for towing up to a 10K trailer with 1K tongue weight so as long as you aren't exceeding those capacities this is more than just a fancy tongue weight scale. I also recommend securing your investment with the Lock Kit # FA86-00-3660. This locks the shank to your trailer hitch and then the ball platform to the shank so everything is secured! Attached are some review videos for you to check out.
    view full answer...
  • Recommended Hitch Lock and Ball Mount Compatible with 3 Inch Hitch with Reducer Sleeve
    The Flash E Series Adjustable 2-Ball Mount w Chrome Balls # FA42-00-2800 has a 5/8 inch pin hole diameter. I believe you will be able to use the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set for Flash E Series Ball Mounts # FA86-00-3660 for a locking combination. The hitch lock is 3-5/8 inches from inside to inside so as long as your 3 inch receiver is under that 3-5/8 at the outer edges you will be fine. You can alternatively use the Draw-Tite Trailer Hitch Lock - 3" Hitch...
    view full answer...
  • Can I Get 4 Hitch Pin Locks Keyed to the Same Key Number that are 5/8"?
    Hello Kari, I do have a keyed alike option that should work for you, it works on both a 2" receiver and a 2 1/2" receiver, the etrailer Hitch Receiver Lock - Chrome # e98881, but it is only 3 5/8" span. On the product page you will need to use the drop down on the "Keyed Unique" and change it to the "Keyed Alike" so that all the locks will have the same key number, that option is located right above "Add to Cart." Are you looking for something for a 3" receiver? I am just trying to better...
    view full answer...
  • Weight Capacity of Fastway Trailer Hitch Lock # FA86-00-3660
    The capacity for the lock set part number # FA86-00-3660 that you referenced is going to be the max capacity the ball mounts these are designed for have. That would be 10,000 lbs total trailer weight and 1,000 lbs tongue weight.
    view full answer...
  • Solution for Locking Demco Recon 5th Wheel Hitch # DM8550045-5W to Truck Bed
    I reached out to my contact at Demco regarding security options for the Recon 5th Wheel Trailer Hitch # DM8550045-5W. He said while they don't offer anything for this purpose they are perfectly okay with somebody using a locking hitch pin in place of the coupler pin that's installed to secure the base to the gooseneck ball. The included pin features a 1/2 inch diameter and 4 inch length so you will need something that matches those dimensions. The closest option we have available comes...
    view full answer...
  • Recommendations for Locking Hitch Pin and Locking Adjustable Ball Mount Pin Keyed Alike
    It sounds like you are talking about a lock set that includes one hitch lock and a second lock for an adjustable ball mount. We have locking pin set # FA86-00-3685 that could potentially work for you. In this set the 5/8 inch diameter hitch lock has a inside pin length of 3-5/8 inches. The adjustment pin is also 5/8 inch and has a length of 4-1/2 inches. We also have lock set # AM3492. It also includes two 5/8 inch diameter locking pins. The inside span of the hitch lock is 3-5/16 inches...
    view full answer...
  • Is The Fastway Lock Set Compatible With e2 Weight Distribution Hitch?
    The Fastway Trailer Hitch Lock and Adjustment Pin Lock Set # FA86-00-3660 is only compatible with the ball mount platforms like the Flash # FA42-00-2400. With the Fastway e2 weight distribution you have to use the bolts and nuts since the hitch head has an adjustable pitch angle. We do have the BulletProof Hitches 2-Ball Mount # MD204 which you can use with the Weight Distribution Shank # 358WEIGHTDIST. This will allow you to quickly adjust the hitch height for the Fastway e2 for different...
    view full answer...
  • Keyed Alike Hitch Locks for 3" and 2" Receivers
    The Curt Lock Set for Adjustable Channel-Style Mounts part # C23556 will do the trick. These pins are rated as high as any hitch and ball mount will be. The Longer one has a usable length of 4.25" while the shorter is 3.25" which will be great for your 3" and 2" receivers. While it is not the typical solution it is the only keyed alike option I currently have available. (May 2020)
    view full answer...
  • Availability of a Lock Pin to Help Secure the Fastway Hitch Head to the Hitch Shank
    We have a lock pin for the Fastway Flash E Series Adjustable Ball Mount, # FA42-00-2900. The Fastway Trailer Hitch Lock and Adjustment Pin Lock Set, # FA86-00-3660, will include both a locking hitch pin and a locking adjustment pin for the Flash E Series adjustable ball Mount. The locking pins are constructed of sturdy steel and the locks have a tube key lock cylinder that makes is harder to pick. The set includes a set of 2 keyed alike keys that will work on either lock on either pin.
    view full answer...
  • Replacement Keys For Fastway Trailer Hitch Lock and Adjustment Pin Lock Set # FA86-00-3660
    Yes, we have the Replacement Keys # FA-KEY-320 for the Fastway Trailer Hitch Lock and Adjustment Pin Lock Set # FA86-00-3660. This will include 2 additional keys for your locks. We also have the Fastway Universal Coupler Lock # FA86-0015-320 which uses the same Fastway 320 key. This will include 2 additional keys allowing you to get the additional keys you need and have a keyed alike storage lock.
    view full answer...


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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Andrew K
Video by:
Andrew K
Employee Jonathan Y
Video by:
Jonathan Y
Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
Video Edited:
Joshua S
Employee Dustin K
Video Edited:
Dustin K
Employee Cole B
Installed by:
Cole B
Employee Savanna B
Installed by:
Savanna B
Employee Wilson B
Updated by:
Wilson B
Employee Amanda M
Written by:
Amanda M

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