Tube 8.3/8/9.5/9-42 TR218A for 42 inch
52,90 €
Tube 8.3/8/9.5/9-42 TR218A for 42 inch
52,90 €
Shipping price from: 6,90 €
This item cannot be collected in person
Product Product in stock
Tube 8.3/8/9.5/9-42 TR218A for 42 inch
Product.Nr.: 990017399
Manufacturer: Novio
This robust inner tube is designed for agricultural and industrial applications with large 42-inch wheels. It covers several common tire sizes and is ideal as a replacement tube for tractors, machinery and equipment where reliability and long service life are required. The TR218A valve is specially designed for large tires and allows convenient inflation and secure retention of air pressure.
Technical data
- Tube size: 8.3/8/9.5/9-42
- Inch size: 42 inch
- Also suitable for: 210/95-42, 230/95-42
- Valve type: TR218A
Valve TR218A – Features
- Valve type: TR218A (special valve for large and tractor tires)
- Design: Straight tube valve with screw-in valve core and locknut for secure fixing in the rim
- Valve hole (rim): approx. 16 mm (standard bore for TR218A agricultural valves)
- Valve length above rim: approx. 38–45 mm (depending on rim contour, sufficient for convenient connection of the filling coupling)
- External valve thread: suitable for common pumps and filling couplings in the agricultural sector
- Sealing principle: rubber seat with locknut, ensures a tight and stable connection in the rim
Benefits and applications
Thanks to its multi-size design (8.3/8/9.5/9-42), this tube is highly versatile and covers two frequently used tire sizes, 210/95-42 and 230/95-42. This reduces stock requirements and ensures that a suitable replacement tube is quickly available.
The tube is particularly suitable for:
- Tractors and agricultural machinery with 42-inch tires
- Municipal and industrial applications with narrow high-profile tires
- Equipment requiring a reliable inner tube for varying load and pressure conditions
Thanks to the TR218A valve, safe and quick inflation and pressure checking are possible. The robust valve design is tailored to the demands of professional use and, in combination with the appropriate tire size, ensures reliable operation in field, yard and industrial applications.
Frequently asked questions about this product
The valve designation describes two things: the stem diameter — which must fit the hole in the rim — and the shape, i.e. straight or angled.
Only the bore matters for a proper fit: a valve fits perfectly only if its stem matches the bore in the rim. Whether it is straight or angled makes no difference — that is a question of accessibility.
An overview of the types:
| Type | Shape | Bore | typically used for |
|---|---|---|---|
| TR13 | straight, rubber | 11.5 mm | Car and trailer wheels |
| TR4 / TR6 | straight, short | 11.5 mm | Small wheels, garden tools |
| TR15 | straight, rubber | 16 mm | Agricultural machinery, tractor rims |
| TR87 | 90° angled | 11.5 mm | Small wheels, solid rims |
| JS8 (DIN 7777) | 90° angled, same as TR87 | 11.5 mm | small wheels, solid rims |
| JS2 | Approx. 70° angled | 11.5 mm | Industrial and small wheels |
| V3-02-7 (TR75) | 100° single-bend metal angle valve with screw-on base | 12.2 mm | Commercial vehicles, lorries, trailers, agricultural and industrial machinery such as forklift trucks |
| V3-06-3 | Triple-bend brass truck screw-on valve (90°/139°/139°) | 9.7 mm | 20-inch truck and trailer tubes (6.00-20 to 9.00-20), also 22.5-inch tube-type tyres |
| TR218A | Straight metal air-water valve, two-piece | 15.9–16 mm | High-volume tubular tyres for agricultural and industrial use, tractors |
V3-02-7 in detail: Also known as ETRTO V3.02.7 and US designation TR75. Dimensions: Horizontal leg length 22.5 mm, vertical leg length 71.5 mm, total height approx. 91 mm. The valve base is screwed on, not pressed in — this makes it significantly more robust than a rubber valve.
V3-06-3 in detail: Also known as ETRTO V3.06.3. Triple-bend brass screw-on truck valve: the first bend is 90°, the other two 139° each — this guides the filling end past the rim flange and keeps it accessible even with twin tyres and deep rim wells. Leg dimensions approx. 20.5 / 46 / 20.5 / 47.5 mm (approx. 135 mm developed length), rim hole 9.7 mm. The valve is fastened to the tube with a sealing washer and nut instead of being vulcanised in. In our range on the 20-inch tubes 6.00/6.50-20, 7.00/7.50-20, 8.25-20 and 9.00-20.
TR218A in detail — the valve for water ballast: What makes this type special is the option for liquid ballasting: the hose is partially filled with water to increase the vehicle’s weight and thus improve traction — a common practice with tractors.
- Design: straight, robust metal valve, usually in two parts. Unscrewing the inner CH3 valve insert creates an extra-large opening — allowing for quick filling with air or liquid.
- Rim bore: 15.9 to 16 mm (0.625 inches).
- Length: typically around 38 to 48 mm total height above the rim.
- Mounting: a rubber base approximately 80 mm in diameter for vulcanising onto the inner tube, plus a lock nut for secure attachment to the rim.
Reducing sleeves: A TR15 valve does not fit into an 11.5 mm bore. Conversely, there are sleeves that allow a TR13 valve to fit into a 16 mm bore.
Whether straight or angled is not a question of fit, but of accessibility: with closed rims or small wheels, it is often impossible to reach the valve with a pump using a straight valve — in which case an angled one is used.
Not sure which valve is fitted? A photo of the old valve is all we need to identify it. Choose from: inner tubes, bead tapes and valves.
Last viewed
Reviews marked “Verified Purchase” are from customers who have bought the product from our shop. Reviews without this label may also be from consumers who have not purchased the products in question. These have not been verified for authenticity.
E-Mail adress: info@protempo-online.de
Streetaddress: Wülfrather Straße 35
ZIP Code: 42553
City: Velbert-Tönisheide
Country: DE
Phone: +49 (0)28217483000
