
81.12503.0063 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $7.88 | Condition is New, Fuel Filter FEBI For MAN NEOPLAN E 2000 El F 90 Hocl Lion S City 81.12503.0024, shipping cost = $16.01 | 99.5% |
![]() | $24.00 | Condition is New, MAN Secondary Fuel Filter w/ O-Ring, shipping cost = $8.43 | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $26.95 | Condition is New other (see details), NOS Fuel Filter MAN NEOPLAN 81.12503.0063 H3, shipping cost = $6.37 | 100.0% |

The 81.12503.0063 secondary fuel filter o-ring is an essential component in the fuel delivery system of various engines. This o-ring, specifically designed for secondary fuel filters, ensures a leak-free connection between the filter housing and the fuel line.
This o-ring is manufactured using high-quality, fuel-resistant rubber material to guarantee excellent sealing performance even in harsh fuel conditions. Its precise dimensions, which correspond to the standard size for secondary fuel filter o-rings, enable a perfect fit in the designated filter housing.
With a diameter of approximately 2 inches (51 mm) and a width of around 0.125 inches (3.2 mm), this o-ring caters to the specific requirements of secondary fuel filters in various applications. Its cross-sectional shape is an essential feature that provides the necessary sealing pressure to prevent fuel leaks while allowing for the smooth flow of fuel through the filter.
This o-ring offers excellent flexibility and resistance to fuel, temperature, and aging, ensuring a long service life and reliability. Its installation is straightforward, and it can be easily pressed into place in the filter housing. Additionally, it is available in various pack quantities, making it a convenient option for stocking up or for use in multiple filters.
In summary, the 81.12503.0063 secondary fuel filter o-ring is a crucial part in maintaining a functional and efficient fuel delivery system. Its high-quality materials, precise dimensions, and excellent sealing properties make it an ideal choice for secondary fuel filters in various applications.
A secondary fuel filter is an essential component of a fuel delivery system, and its o-ring plays a crucial role in ensuring a tight seal and preventing fuel leaks. Here are the pros and cons of buying an (81.12503.0063) secondary fuel filter o-ring:
Pros:1. Ensures fuel system efficiency: A new o-ring ensures a tight seal, preventing fuel leaks and maintaining the fuel system's efficiency.
2. Prevents fuel contamination: A damaged o-ring can allow fuel contaminants to enter the fuel system, leading to engine damage. Replacing the o-ring with a new one can prevent this issue.
3. Improves engine performance: A leaking fuel system can lead to poor engine performance. Replacing the o-ring can help improve engine performance by ensuring a proper fuel delivery system.
4. Cost-effective: Replacing the o-ring is a relatively inexpensive repair compared to replacing the entire fuel filter or fuel system components.
Cons:1. Potential for incorrect fitment: Ensure that the (81.12503.0063) o-ring is the correct one for your specific fuel filter model. Using the wrong o-ring size or type can lead to leaks or other issues.
2. Requires disassembly: Replacing the o-ring may require disassembling the fuel filter, which can be time-consuming and may require specialized tools.
3. Risk of fuel spills: Handling fuel during the repair process can be hazardous. Ensure that you take proper safety precautions to minimize the risk of fuel spills.
Conclusion:Replacing the o-ring in a secondary fuel filter is an essential repair that can help prevent fuel leaks, contamination, and improve engine performance. However, it requires careful consideration to ensure that the correct o-ring is used and that the repair process is carried out safely.
Recommendation:When replacing the o-ring, it is recommended to use a high-quality aftermarket o-ring from a reputable supplier to ensure a proper fit and seal. Additionally, ensure that you take the necessary safety precautions when handling fuel during the repair process. If you are unsure about the repair process or the correct o-ring size, it may be best to consult a professional mechanic for assistance.
Details:
New man secondary fuel filter w/ o-ring p/n:81.12503.0063.
specifications inboardfuel:
- brand: Man
- mpn: 81.12503.0063
- part type: Fuel Ring Filter
seller inboardfuel:
- rating: 100.0%
- city: kemah, texas
- # reviews: 29
general inboardfuel:
- category: Boat Parts > Inboard Engines Components > Intake Fuel Systems
payments inboardfuel:
- credit card: visa
- other
- wallet: google-pay
returns inboardfuel:
- policy: returns accepted
- time: 30 days
- paid by: seller
shipping inboardfuel:
- class: economy
- carrier: ups
- type: calculated
- transit: 5-13 days
- service: ups ground saver
offer inboardfuel:
- prices: $7.88–$26.95
- item condition:
- New
- New other (see details)
- started: january 8, 2026
- availability: in stock
- sold #: 16
- options: ship-to-home
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