Automotive replacement parts designed to restore a secure, leak-free seal on 40 mm fuel caps. Riders gain reassurance against fuel drips and vapour odour. Is the OTOTEC Fuel Cap Gasket the right fit for your Simson or other E40-equipped moped?
⚡ At a Glance
- • Sealing Performance: Precise 60mm outer diameter, approx 38mm inner diameter and 3mm thickness for a snug fit
- • Best for: Owners of Simson mopeds and other vehicles using E40 or 40 mm fuel caps
- • Not ideal for: Fuel caps that are not 40 mm in size or vehicles without E40-compatible caps
Rubber gaskets sold as a pair, sized specifically for 40 mm fuel caps. Compatible with many Simson models and other vehicles that use E40 fuel caps.
Reliable Seal - thanks to precise 60mm/38mm dimensions
Outer diameter of 60mm and inner diameter of approximately 38mm with a 3mm cross section match the groove profile of standard E40 caps to form a tight interface. Exact sizing reduces gaps where fuel or vapour can escape.
A snug interface prevents fuel drips and vapour leakage, cutting down on odour and evaporation. Expect a dependable seal when fitted correctly.
Durable Construction - with rubber material
Rubber composition provides flexibility that retains shape under repeated removal and exposure to fuel and vapour. The material resists cracking where harder materials might fail.
Long-lasting performance compared with brittle seals, helping the cap maintain a reliable closure over time. Reduced need for frequent replacements.
Wide Compatibility - with many Simson and other E40 fuel caps
Compatibility is specified for a range of Simson models including KR, KR51 variants, S50, S51, S53, S70, S83 and SR4/SR50/SR80 series, and is described as suitable for vehicles using E40/40 mm caps. Fit relies on matching cap geometry rather than brand alone.
Suitable for several common moped models and other vehicles that use E40 caps, simplifying parts sourcing and ensuring a direct replacement.
✨ The 4 Key Reasons for OTOTEC Fuel Cap Gasket
- Precise Dimensions - Ensures a snug, leak-free fit for E40 fuel caps
- Durable Rubber Construction - Resists fuel degradation and lasts through repeated use
- Simple Installation - Fits quickly without tools on compatible 40mm caps
- Broad Moped Compatibility - Works with many Simson and SR-series fuel caps
📋 Technical Details at a Glance
- Category: Automotive Parts and Accessories
- Brand: OTOTEC
- Compatibility: Simson KR, KR51, KR51/1, KR51/2, S50, S51, S53, S70, S83, SR4-1, SR4-2, SR4-3, SR4-4, SR50, SR80
- Fit for cap size: 40 mm
- Outer diameter: 60 mm
❓ Frequently Asked Questions
Q: Will this gasket fit a 40 mm fuel cap?
A: Yes. The gasket is specified for 40 mm fuel caps with an outer diameter of 60 mm, inner diameter of approximately 38 mm and a thickness of 3 mm.
Q: Which moped models are compatible?
A: Compatibility includes many Simson models such as KR, KR51 variants, S50, S51, S53, S70, S83 and SR4 series, plus SR50 and SR80; also fits other vehicles using E40 caps.
Q: Is the material durable and easy to install?
A: Made of rubber described as durable and long lasting, with user reviews noting easy installation and good overall quality.
🏆 Our Verdict
Suitable for moped owners who need a reliable replacement seal for 40 mm or E40 fuel caps, particularly Simson riders. Precise dimensions and rubber construction deliver dependable sealing and straightforward installation. A cost-effective replacement that extends cap life and reduces fuel vapour escape, offering good long-term value.
