Fiamma Cap and Joint for Roll Tank 40W/40F/70L (98669-031)

This is the Fiamma replacement cap and joint assembly for the Fiamma Roll Tank 40W, 40F and 70L fresh/waste water tank range, sealing the fill/service opening on the tank body. It's the fitting that screws or clips onto the tank's threaded neck to keep the filler watertight and secure while towing or driving.

Over time UV exposure and repeated opening/closing can crack the cap or wear the sealing joint, leading to leaks or a loose fit — this part restores a tight seal.

• Fits Fiamma Roll Tank 40W, 40F and 70L (fresh/waste water versions)
• Includes: cap and sealing joint/gasket
• Colour: typically red or blue depending on fresh/waste variant
• Material: moulded plastic cap with rubber seal
• Manufacturer part number: 98669-031

Q: Is this cap colour-coded for fresh vs waste water?
A: Fiamma tank caps are usually colour-coded (e.g. blue for fresh, grey/red for waste) — confirm which tank type you have before ordering to get a matching colour.

Q: Does this fit the 23L Roll Tank too?
A: No, the 23L range uses a different, smaller discharge cap (98669-018/025); this cap and joint is specific to the 40W/40F/70L tanks.