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Description
24-1/2" Trailer Leaf Spring - Slipper Flat End - 3 Leaves - 4331-7Product Specifications for Slipper Leaf Spring 4331 7 Number of Leaves 3 Leaf Spring Width 1 3 4" A Spring Length: 12 1 8" B Spring Length: 14 1 4" C Spring Arch: 4" D Stack Height: . 079" E Eye to End Length: 24. 5" Eye Diameter: 9 16" Leaf Material: . 262" Leaf Spring Capacity: 750 lbs. Slipper End Type Radius End Alternate SKU: UNA 178, UNA178, WE 3, WE3, 4331 07, 433107, UNA 203, UNA203, WE3 433107 UNA203, WE3433107UNA203, WE3433107, LR24503F,
Product Specifications for Slipper Leaf Spring 4331-7
Number of Leaves - 3
Leaf Spring Width - 1-3/4"
A - Spring Length: 12-1/8"
B - Spring Length: 14-1/4"
C - Spring Arch: 4"
D - Stack Height: .079"
E - Eye to End Length: 24.5"
Eye Diameter: 9/16"
Leaf Material: .262"
Leaf Spring Capacity: 750 lbs.
Slipper End Type - Radius End
Alternate SKU: UNA-178, UNA178, WE-3, WE3, 4331-07, 433107, UNA-203, UNA203, WE3 433107 UNA203, WE3433107UNA203, WE3433107, LR24503F, TS820-3, TS8203
Leaf Spring Width - 1-3/4"
A - Spring Length: 12-1/8"
B - Spring Length: 14-1/4"
C - Spring Arch: 4"
D - Stack Height: .079"
E - Eye to End Length: 24.5"
Eye Diameter: 9/16"
Leaf Material: .262"
Leaf Spring Capacity: 750 lbs.
Slipper End Type - Radius End
Alternate SKU: UNA-178, UNA178, WE-3, WE3, 4331-07, 433107, UNA-203, UNA203, WE3 433107 UNA203, WE3433107UNA203, WE3433107, LR24503F, TS820-3, TS8203
Product Description: Slipper Leaf Spring 4331-7
The 4331-7 slipper leaf spring is a versatile suspension component suitable for various trailer types, including utility, boat, travel, dump, and horse trailers. This slipper spring features a 9/16-inch ID nylon bushing installed on one end and a flat slipper end on the other for reliable performance and durability.
With a capacity of 750 lbs., this slipper spring is designed to handle light loads effectively, making it a dependable choice for trailer applications. This model is identical to slipper spring part numbers UNA-178 and WE3.
Measurement Guidelines
To ensure an accurate fit, measure along the surface of the leaf spring. Note that eye-to-end measurements may vary over time due to the spring flattening with use. If you have any questions, contact the experts at Spring Works for assistance or open our chat for AI responses to common questions.
Important Replacement Note
Always replace 4331-7 slipper leaf springs in pairs to maintain proper height, axle alignment, and performance.
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
4.8 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Most durable ball!
Size: Medium
This are my dogs fav ball 😍 they last forever!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 4
Chuckit medium rebound balls
Size: Medium
My 8 month old German shepherd dog loves these balls. They are easy to throw, they bounce great, they are very chewable! She keeps one in her mouth most of the time. It satisfies her need to chew and she does not chew other things. She drops it in the water and lets the hole fill up and drinks that way. The only problem that has caused is suction in her mouth and difficulty in dislodging it for her. However, she would be lost without it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2023
★★★★★ 5
These are definitely indestructible
Size: Medium
Both of my dogs can destroy a ball in a matter of minutes if I let them play with them (supervised) as is. Well not with these balls. They are the ONLY ones I have found that are 100% indestructible. Please only let your dogs play with these as a toy when supervised though. They go really far when throwing them, so both dogs get a good amount of running and exercise with these. I also bought these because they have the hole in the middle of the ball which is very important in the event that a dog gets one stuck at the back of their throat. This allows them to breath unlike those without this hold. It's an unlikely event, but as dog owners, we all need to be aware of this and educate ourselves on what to do if this SHOULD happen. This isn't a scare tactic, nor a reflection of this particular brand, it can happen with any type of ball. My two dogs are about 45ish lbs and the size is perfect for them, I don't want anything smaller than this. They love them. There is no annoying squeak. Really easy to wash after use. Some balls take forever to get the slimy saliva off, but these don't.
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Reviewed in the United States on September 25, 2025
★★★★★ 5
He loves this ball
Size: Medium, Size: Medium
My dog loves this ball. It’s the perfect size, he enjoys playing fetch and this ball has been his fav one. Thank you guys for making my lil one happy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
★★★★★ 5
Quiet squeaker!
My puppy loves them and I love that the squeaker isn't obnoxiously loud like her other toys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 19, 2025
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