Neptune RFH12 12mm fuel hose, cut to the length you need
The Neptune RFH12 12mm fuel hose is a reinforced rubber fuel pipe for petrol and diesel. We sell it in cut lengths from 0.25 m to 10 m, so you only buy what the job needs. Choose the length in the drop-down and it comes as one piece, ready to fit. However, for bigger jobs the full 30 m roll costs less per metre.
Where to use 12 mm fuel hose
12 mm fuel hose suits trucks, tractors and earthmoving equipment. It also fits fuel transfer pumps, bowser and storage tank lines, and large gensets. Because it has a 20 bar working pressure, it also handles normal fuel pump pressures with plenty in reserve.
Specifications
- Part number: Neptune RFH12
- Inside diameter: 11.8 to 12.4 mm
- Inner liner wall: 1.8 to 2.0 mm
- Construction: reinforced rubber fuel hose
- Fuels: petrol and diesel
- Standard working pressure: 20 bar
- Maximum temperature: 70 °C
- Supplied: cut lengths of 0.25 m to 10 m, or a full 30 m roll
Choosing a length
We cut each length you order as one piece, so 2 x 1 m gives you two 1 m pieces. If you need 3 m in one run, choose 3 m instead. Also allow a little extra for trimming the ends square. For long runs, or when you fit this size often, the 30 m roll works out cheaper per metre than cut lengths.
Fitting tips
- First push the hose fully over the barb, then fit the clamp just behind the barb’s bead and tighten until firm.
- Keep the fuel pipe away from exhaust manifolds, turbos and other hot parts, because the hose has a 70 °C temperature limit.
- Route it clear of sharp edges and moving parts, and replace any hose that has cracked, hardened or swollen.
- This is fuel hose only: use heater hose for coolant, and the correct hose for brake fluid or power steering.
Other Neptune fuel hose sizes
Neptune fuel hose also comes in 3.2 mm, 5 mm, 6 mm, 8 mm and 10 mm inside diameter. See them all, together with the full rolls, under Fuel Hose.
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