Answering common questions from jet ski owners, this guide highlights aftermarket gas caps that fit Kawasaki models such as ZXI, STX, SX, and STS series. These parts are ideal for riders who want a reliable, aftermarket seal and easy attachment. The top picks suit boaters, weekend enthusiasts, and anyone replacing a worn or missing cap. Below, find a quick comparison and detailed reasons to choose each product.
Quick comparison table
| Product | Best For | Notes |
|---|---|---|
| JSP Manufacturing 51049-3714 Gas Cap | OEM-style replacement | Includes rubber gasket; chain attachment with screw |
| JSP Manufacturing Gas Cap, Gasket & Filler Neck Kit | Complete filler neck replacement | Black gas cap; compatible with Kawasaki parts 59231-3734/51049-3714 |
| Vanlison 51049-3714 Gas Cap | Durable, corrosion-resistant | Plastic and stainless steel; wide Kawasaki compatibility |
| JAVIK Gas Cap 51049-3001 | ATV/Jet Ski cross-fit | OEM-style for multiple Kawasaki models |
| Direct Replacement 51049-3714 Gas Cap | Plug-and-play | OEM-spec; integrated chain tether screw |
JSP Manufacturing Aftermarket Gas Cap 51049-3714
This black gas cap is designed to replace Kawasaki part 51049-3714. It includes a rubber gasket and features a screw-on bottom for applying a chain tether instead of a clip. Best for Kawasaki Jet Ski owners seeking OEM-style aftermarket reliability. The top has a nipple indent for easy identification. Suitable for models like ZXI, SX, STX, and STS variants. Caution: ensure compatibility with your exact Kawasaki model year before purchase.
JSP Manufacturing Gas Cap, Gasket & Filler Neck Kit
This kit pairs a black gas cap with a white filler neck, designed for Kawasaki wheels and their corresponding part numbers 59231-3734 and 51049-3714. It notes the filler neck does not include an overflow nipple (the related part is no longer available). Best for buyers who want a consolidated replacement that covers both the cap and the neck. It’s a complete upgrade when the existing neck shows wear. Limitation: the kit excludes an overflow nipple on the filler neck.
Vanlison 51049-3714 Black Gas Cap
Vanlison’s gas cap is a direct replacement with OEM specifications in mind. It uses high-quality plastic and stainless steel, delivering corrosion resistance and a reliable seal to prevent leaks. Best for Kawasaki TS, SC, SX, STS, ZXI, STX series jetskis from 650 to 1200cc, including STXR 1200. It provides plug-and-play installation and a chain tether bottom screw for secure attachment. Caution: verify model years and exact cap color needed, as this listing emphasizes the 51049-3714 variant.
JAVIK Gas Cap For Kawasaki KLF185 to JS650
JAVIK’s gas cap is aimed at a broad Kawasaki range, including KLF185, KLT200, KLT250, JS300, JS400, JS440, JS550, JS650, across 1976-1995. It uses nylon construction with a built-in rubber seal to prevent leaks and odors. Best for owners of older Kawasaki models needing a compatible OEM-like cap. Limitation: not guaranteed for newer Kawasaki Jet Ski models beyond those listed.
Direct Replacement Gas Cap 51049-3714 (Kawasaki)
Direct Replacement offers a true plug-and-play option aligned with OEM specs for 51049-3714. It features a durable plastic body, a reinforced rubber gasket, and a bottom chain tether screw (not a clip) for secure attachment. Best for buyers who want a straightforward, no-fuss replacement that matches the original fit. Caution: ensure exact model compatibility with your Kawasaki Jet Ski model year.
Vanlison 51049-3714 Black Gas Cap, Coffee Edition
This Vanlison gas cap is a practical option with OEM alignment for 51049-3714. It includes a gas cap and a rubber O-ring with a bottom screw to attach the chain. Best for Kawasaki jetskis where a sturdy cap with reliable sealing is needed. Limitation: the listing emphasizes the coffee color variant; verify color availability for your bike before purchase.
Buying Guide
What to consider when choosing a jet ski gas cap:
- Model compatibility: Confirm the exact Kawasaki model and year to ensure the cap matches the outer diameter and threading.
- Seal and gasket quality: A good rubber gasket blocks dirt and water; look for reinforced seals for long-term reliability.
- Attachment method: A screw-on chain tether is often more secure than a clip—verify which method your cap uses.
- Material durability: Plastic with stainless steel components typically resists corrosion in marine environments.
- Included components: Some kits include filler necks or gaskets; decide if you need a single cap or a full neck kit.
- Aesthetic and color options: Some listings offer different finishes; ensure color matches your jet ski for a cohesive look.
FAQ
- Q: Will these caps fit all Kawasaki jet skis?
- A: These caps target specific part numbers (notably 51049-3714) and Kawasaki models; check compatibility with your exact model/year before purchasing.
- Q: Do caps come with gaskets?
- A: Many listings include a rubber gasket; verify included components in the product description.
- Q: Is a chain tether required?
- A: Some caps use a screw-on bottom to attach a chain tether; others may use a clip. Choose according to your needs and tail setup.
- Q: Are there any limitations on color or filler neck options?
- A: Some kits specify color (black or white) or note that the filler neck may not include an overflow nipple; verify features in the listing.
- Q: What is the benefit of a complete neck kit?
- A: A neck kit can replace multiple parts at once, reducing future maintenance and ensuring a uniform seal.