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Description
ARRMA Lower Hinge Pin Set 4x63.5mm Steel Pins 330731The ARRMA ARA330731 Lower Hinge Pin Set is a genuine replacement steel suspension pin set designed for compatible ARRMA vehicles using the adjustable lower arm mount system, ideal for servicing worn, bent, or damaged hinge pins. Features Genuine ARRMA Replacement Part: Designed as a spare or replacement lower hinge pin set for compatible ARRMA vehicles Strong Steel Construction: Tough steel material provides long lasting durability for demanding RC
The ARRMA ARA330731 Lower Hinge Pin Set is a genuine replacement steel suspension pin set designed for compatible ARRMA vehicles using the adjustable lower arm mount system, ideal for servicing worn, bent, or damaged hinge pins.
Features
- Genuine ARRMA Replacement Part: Designed as a spare or replacement lower hinge pin set for compatible ARRMA vehicles
- Strong Steel Construction: Tough steel material provides long-lasting durability for demanding RC use
- 4mm Diameter Pins: 4 x 63.5mm sizing suits compatible ARRMA lower suspension arm mount assemblies
- Polished Finish: Smooth polished surface supports free suspension movement and reduced binding
- Useful Toolbox Spare: Handy replacement part for suspension maintenance, crash repair, and trackside servicing
- Adjustable Mount System Support: Designed to be used with the required ARRMA lower arm adjustment and mount components
Specifications
- Brand: ARRMA
- Part Number: ARA330731
- Product Type: Lower hinge pin set
- Vehicle Type: RC car / truck
- Material: Steel
- Finish: Polished
- Pin Diameter: 4mm
- Pin Length: 63.5mm
- Position: Lower suspension hinge pin
- Required Companion Part: ARA320658 lower arm adjustment block set
- Required Mount Options: Use with either ARA320652 and ARA320653, or ARA320655 and ARA320656
- Application: Compatible ARRMA suspension lower arm mount assemblies
Includes
- 2 x ARRMA lower hinge pins, 4 x 63.5mm
Compatibility / Required Parts
- Requires ARA320658 lower arm adjustment block set
- Requires either ARA320652 and ARA320653, or ARA320655 and ARA320656
- Check your ARRMA vehicle manual or exploded parts diagram before ordering to confirm ARA330731 is used on your model
FAQ
What size are the ARRMA ARA330731 hinge pins? The ARRMA ARA330731 hinge pins measure 4mm in diameter and 63.5mm in length.
How many hinge pins are included? The ARRMA ARA330731 set includes two lower hinge pins.
What are these hinge pins used for? These pins are used in compatible ARRMA lower suspension arm mount assemblies to support suspension arm movement.
What other parts are required? ARRMA states these pins are used with ARA320658 and either ARA320652 plus ARA320653, or ARA320655 plus ARA320656.
When should hinge pins be replaced? Replace hinge pins if they are bent, worn, heavily scratched, corroded, or causing suspension binding or excess play.
Important Notes
- Confirm your exact ARRMA model and exploded parts diagram before ordering.
- This listing is for two lower hinge pins only. Suspension arms, hinge pin braces, lower arm mounts, adjustment blocks, screws, vehicle, and tools are not included.
- Inspect suspension arms, pivot balls, hinge pin holes, arm mounts, and adjustment blocks when replacing damaged hinge pins.
- Clean hinge pin bores and check for free suspension movement after installation.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 27 reviews
Sort
Product Reviews
★★★★★ 5
A Humorous Twist on Tough Dog Toys!
Size: Large, Color: Lobster 3 Pack
I recently purchased the Nylabone Power Chew Dog Toy Pack for Aggressive Chewers from Amazon, and I must say, these toys have been a hilarious hit with my furry friend. As a dog parent of a strong and determined chewer, finding toys that can withstand their chewing prowess is a top priority, and these toys deliver both durability and a touch of humor.
The pack consists of three large/giant-sized toys in the shape of a lobster, cheese, and broccoli. The unique and amusing design puts a smile on my face every time I see my dog interacting with them. The unexpected twist brings a playful element to our daily playtime sessions, making it a fun and engaging experience for both of us.
When it comes to durability, these toys excel. My dog can be quite aggressive with their chewing, and I've struggled to find toys that can withstand their powerful jaws. However, the Nylabone Power Chew toys have proven to be impressively tough and durable. Despite rigorous chew sessions, these toys have remained intact, with no signs of wear or damage. They provide a reliable outlet for my dog's chewing instincts without the risk of shredding or ingesting any harmful materials.
The textured surfaces of these toys add an extra layer of interest for my dog. The ridges and raised bumps provide sensory stimulation, promoting healthy oral hygiene and helping to clean teeth and gums as they chew. I appreciate the added dental benefits these toys offer, as it helps maintain my dog's dental health while they engage in play.
I also appreciate the size options available in this pack. Large and giant-sized dogs often require bigger toys to accommodate their larger mouths and chewing strength. The included toys are appropriately sized for larger breeds, ensuring a comfortable grip and maximum enjoyment during play sessions.
As a bonus, these toys are made from high-quality, non-toxic materials, so I have peace of mind knowing that my dog can safely interact with them. Safety is a top priority for me, and Nylabone consistently delivers in that regard.
In conclusion, if you have an aggressive chewer and are in search of durable, funny, and engaging dog toys, the Nylabone Power Chew Dog Toy Pack is a fantastic choice. These toys provide hours of entertaining play, withstand even the most determined chewers, and offer dental benefits. Embrace the humorous twist and enjoy watching your furry friend engage in safe and engaging play with these fantastic toys.
Invest in the Nylabone Power Chew Dog Toy Pack today and let the lobsters, cheese, and broccoli bring laughter and durability to your dog's playtime!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2023
★★★★★ 5
Solid win for any chewing pup!
Size: Small, Color: Broccoli 3 Pack, Size: Small, Color: Broccoli 3 Pack
My pup loves them! Long lasting plus health benefits for his teeth, 10/10 would recommend 💖
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
★★★★★ 5
Shark dog approved
Size: Large, Color: Broccoli, Size: Large, Color: Broccoli
My new baby shark.... I mean puppy really enjoys chewing. I can't just give her a ton of pig ears or bully sticks all day, which she would definitely love, so I'm constantly looking for well made chew toys. I'd put this right up with Kong. Very durable and nice. I also love the different textures, she seems to also love it. She can gnaw at the top and chew on the stem. She wanted it as soon as I opened it - it does smell like bacon but I haven't taken a chomp at it to be able to write a complete review!
My dog is about 23 lbs but I can see a 80 lb dog chew this, it's not small.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2025
★★★★★ 4
So cute
Size: Large, Color: Pumpkin
My French Bulldogs have really strong jaws and are aggressive chewers. These really are sturdy and last a good amount of time. They are a bit heavy and awkward for my dogs to hold onto but they do like them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
★★★★★ 5
Cute toy and super tough!
Size: Small, Color: Lobster
My small dog is a serious chewer, and this lobster toy has been holding up great. Usually, he destroys toys within a day, but this one’s still going strong after a couple of weeks. The shape is perfect — easy for him to grab and chew, and the little claws keep him entertained.
The filet mignon flavor must be good because he goes right for it every time. It’s sturdy without being too hard on his teeth, and it doesn’t leave any mess or pieces behind.
If you’ve got a small but mighty chewer, this one’s definitely worth it. Cute design, lasts forever, and keeps my pup busy — total win. 🦞🐾
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
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