Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is the CURT Replacement Jack Snap Ring (MPN 28939) used for?
The CURT Replacement Jack Snap Ring (MPN 28939) is a retaining ring used to secure components on CURT trailer jacks and related vehicle maintenance equipment. It is essential for fleet and vehicle maintenance applications where a reliable snap ring is needed to keep jack assemblies intact during operation.
What are the specifications of the CURT Replacement Jack Snap Ring (MPN 28939)?
The CURT Replacement Jack Snap Ring (MPN 28939) is identified by manufacturer part number 28939. It is designed as a snap ring for CURT trailer jacks, used in fleet and vehicle maintenance. For exact dimensions and material specifications, consult the CURT product documentation or contact 3G Electric for details.
Where to buy the CURT Replacement Jack Snap Ring (MPN 28939) worldwide?
3G Electric supplies the CURT Replacement Jack Snap Ring (MPN 28939) to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this part for your fleet and vehicle maintenance needs.
How to install the CURT Replacement Jack Snap Ring (MPN 28939)?
To install the CURT Replacement Jack Snap Ring (MPN 28939), first ensure the jack assembly is clean and free of debris. Use snap-ring pliers to expand the ring and seat it into the groove on the jack shaft. Verify the ring is fully seated before reassembling the jack. Follow CURT’s generic installation guidelines for best results.
Used in
Common applications for CURTCURT Products
3G Electric supplies CURT fleet and vehicle maintenance. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









