Availability of Leaf Spring Upgrade for Nitro NV19 Boat Trailer
Updated 09/26/2025 | Published 04/17/2025
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Question:
Hello, I own a Nitro ZV19 boat that sits on a trailstar NZV19 trailer. The boat weighs 5000 lbs. I want to upgrade my leaf spring from 3 leaf to a 5 leaf. I also want to upgrade the equalizer. I believe I already know what equalizer to buy, but I’m not sure what size leaf spring I need. Will these work? I tried to measure but I had a hard time getting it exact. It was between 25 and 26. Do you happen to know exactly what leaf spring size I need. Thank you.
asked by: Alex L
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Expert Reply:
Hey Alex, I don't have a way to know exactly what leaf spring your NV19 trailer has/needs but there's a pretty good chance the part # e34SR is correct. 25-1/4 inch length is a very common length but so is 26 inch like the part # e94SR so you would want to jack your trailer up so that the weight of it is not on the spring and measure it's length the best you can. Keep in mind that springs tend to stretch about 1/8 of an inch as they wear out.
Product Page this Question was Asked From
5-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/4" Long
- Trailer Leaf Springs
- Double Eye Springs
- 9/16 Inch Eye
- Nylon Bushings
- 6000 lbs
- 1-3/4 Inch Wide
- 5 Leaf
- 25-1/4 Inch Long
- Standard Grade
- etrailer
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Jameson C.
9/26/2025
Hey Alex, did you have a chance to measure the leaf spring length on your trailer? I'm curious to know if the 25-1/4 inch or the 26 inch option worked for you, as it could help others facing a similar decision.