Inside and Outside Diameter of Firestone Air Line Tubing

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Question:

Hi.. What is the inside and outside dimensions of this F49ZR tubing.. Thanks

asked by: Glenn P

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Expert Reply:

The Firestone # F49ZR 18 foot length of air tubing has an outside diameter of 1/4 of an inch and an inside diameter of 5/32 of an inch. If you're using the tubing with the push fittings of an air helper spring system, it's crucial that the cuts in the tubing are perpendicular and smooth. If the cut is jagged or made at an angle, the connection will leak. AirLift offers a # AL10530 tubing cutter that will make a perfectly square cut that won't leak.

expert reply by: Mike L

0

Answer 1

Hey Charles, sorry to hear about the leak. What I would do before doing anything too complicated is for sure narrow down where the leak is. You can do this by spraying soapy water on the bags and the line and where the leak is you'll see…

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Answer 2

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 3

Hey Doug! The Firestone Ride-Rite Air Helper Springs #F35FV are the right kit for your 2026 Ford F-350 FX4 dually. However, you will need to measure to be sure it fits. The distance from the top of your rear axle to the top of the jounce bump stop…

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Answer 4

Since the pin weight of your camper is 2.1k, I recommend going with the LoadLifter 5000 opposed to the 7500. While technically there is not reason you couldn't use the 7500 kit, it really is not necessary for a camper like yours. Generally the…

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Answer 5

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 6

For your Air Spring Union Tee like #F3025-1 the only troubleshooting you can do is what you have already been doing. The Tee fittings simply use a compression so pushing into place is all that is required. The clean 90 degree cut is also all that is…

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Answer 7

Hey Phil! For a tandem axle trailer you will want two of the Leveling Kit with Wheel Chocks for Trailers and RVs #WS28ER. You are correct, one under each tire is best. I use these on my Jayco with one under each tire to keep them off the ground and…

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Answer 8

The Red Label bags like the part #F2706 are much heavier duty than the standard duty bags like the #F2598 that you also mentioned. The pressure rating is 150 psi vs. 100 psi, the weight capacity is 7,500 vs. 5,000 lb, and overall they are just larger…

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Answer 9

For your 2023 Ram 2500 Power Wagon with a 2" lift I recommend the Firestone Ride-Rite Air Helper Springs #F2598. Air bags are the best option for additional support to keep you level while towing, especially with your lift. These offer 5,000 lbs…

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Answer 10

For your 2019 Ram 2500 I highly recommend the Firestone Ride-Rite Red Label Air Helper Springs #F2706. These air springs are confirmed to fit the rear axle of your Ram and are compatible with the frame brackets from 5th wheel hitch base rails. These…

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Answer 11

There are two Timbren systems for your 2023 Ford F-350, like you said, with the best definitely being the following part number: - Timbren Suspension Enhancement System #TFR350SDJ The reason for that is the #TFR350SDJ is designed for standard pickups…

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Inside and Outside Diameter of Firestone Air Line Tubing

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