SG Store 55mm Fuel Tank Cap – 85mm OD
AUD 16.59 on Amazon.com.au (as of October 22, 2026) View details ↗
The **SG Store 55mm Fuel Tank Cap** is a precision-engineered replacement designed for small engine applications, including lawn mowers, generators, and other outdoor power equipment. With an **inner diameter of 55mm** and an **outer diameter of 85mm**, this cap ensures a secure, leak-proof fit for fuel tanks where standard caps may no longer seal properly. The durable metal construction, paired with a reinforced rubber seal, provides long-lasting protection against fuel spillage and evaporation, helping maintain engine performance and safety.
Installation is straightforward, making it an ideal choice for DIY maintenance or professional servicing. Simply remove the old cap, align the 55mm inner diameter with the fuel tank opening, and secure the new cap in place—no tools required for most applications. The cap’s universal compatibility extends beyond lawn mowers to generators and other small-engine tools, offering a reliable solution for equipment owners seeking to restore or maintain fuel integrity. Whether replacing a worn seal or upgrading to a more secure fit, this cap delivers both functionality and peace of mind.
Manufactured by **SG Store**, this part is backed by a reputation for quality in automotive and small-engine accessories. Weighing just **100 grams** and packaged in compact dimensions (**11.4 x 10.7 x 2.2 cm**), it’s easy to store and transport. With a **5.0-star rating from customers**, this cap is trusted for its durability and ease of use, making it a practical addition to any toolkit for maintaining small-engine equipment.
| Inner Diameter | 55mm |
|---|---|
| Outer Diameter | 85mm |
| Material | Metal with rubber seal |
| Weight | 100 grams |
| Package Dimensions | 11.4 x 10.7 x 2.2 cm |
| Compatibility | Lawn mowers, generators, small-engine tools (55mm tank opening) |



