silicone cap plug black for cooling circuit, engine oil diameter 6 to 40mm Length 3cm

Code: bouchon-silicone-noir

Soft silicone plug:

  • 6mm to 40mm
  • 16 sizes available
  • Made of double-layer silicone + fibre reinforcement
  • Temperature range: -40°C to +170°C
  • Maximum pressure 16 Bar
  • Abrasion and wear resistance
  • Resistant to automotive fuels including E85, engine oils and coolants
  • Resistant to all types of automotive and HGV fluids
  • Sold individually
  • The diameter shown is the inside diameter

Price range: 4,69€ through 7,69€

In Stock
🚚

Delivery expected on Wednesday 10 December

If you order in the next 67 h and 45 min.

Based on 8 reviews

See reviews

Flexible black silicone stopper

16 diameters from 6 to 40mm


The diameter shown is the inside diameter.

Flexible cap for coolant, engine oil, Petrol + Diesel, Ethanol E85

Replace and seal your cracked hoses, worn by the test of time.

Use these flexible silicone caps to plug your coolant, water, oil, petrol and diesel hoses.

Highly resistant to temperature and abrasion.

Technical specifications:

  • 6mm to 40mm
  • Made of double-layer silicone + fibre reinforcement
  • Temperature range: -40°C to +170°C
  • Maximum pressure 16 bar
  • Abrasion and wear resistance
  • Resistant to automotive fuels including E85, engine oils and coolants
  • Resistant to all types of automotive and HGV fluids

Compatible fluids:

  1. Engine oil
  2. Power steering oil
  3. Coolant
  4. Diesel
  5. Petrol
  6. Ethanol E85 and E100
  7. Ad Blue

Widely used in the automotive, agricultural and industrial sectors.

Sold individually.

Weight N/A
Diamètre

6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 30mm, 32mm, 35mm, 38mm, 40mm

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Reviews about product
0
1★
0
2★
0
3★
1
4★
7
5★
9.8/10


Based on 8 reviews

  • Jean M.
    Published on 10 November 2025 at 12h52 (Order date: 29 October 2025 at 8h29)
    5

    Perfectly corresponds

    (Translated review)
  • JOSE LUIS F.
    Published on 21 September 2025 at 9h48 (Order date: 22 August 2025 at 12h04)
    5

    Good quality

    (Translated review)
  • THIERRY D.
    Published on 1 September 2025 at 21h39 (Order date: 20 August 2025 at 21h15)
    5

    Nothing to report, competitive price and fast shipping.

    (Translated review)
  • Philippe P.
    Published on 30 August 2025 at 19h06 (Order date: 19 August 2025 at 10h19)
    5

    Meets my expectations

    (Translated review)
  • Sylvie L.
    Published on 28 August 2025 at 23h59 (Order date: 14 August 2025 at 16h40)
    4

    Good

    (Translated review)
  • stefano b.
    Published on 5 July 2025 at 16h12 (Order date: 24 June 2025 at 17h04)
    5

    perfect

    (Translated review)