A damaged marine fuel system is easier to identify in pieces. Note whether the portable Attwood tank holds three or six US gallons, whether it has a gauge, and the marking on the primer-bulb hose. The same red tank shape does not tell you which hose or outboard connector belongs on the installation.
Identify the existing portable fuel equipment
Conceptual identification shapes only, not scaled product drawings or hose-routing instructions.
How to narrow down the original tank and line
- Locate the part number on the tank and check whether a fuel gauge is present.
- Measure the tank in its actual mounting space: the six-gallon design is larger than the three-gallon version.
- Read the hose ID marking or measure against the original manufacturer's specification; do not confuse 5/16 inch with 3/8 inch.
- Check whether a separate fuel-demand valve is installed in line with the primer bulb; it is not present on every hose model.
- Identify both connector ends and inspect the original system for leaks or aging parts. Use appropriate fuel-safe components and professional installation where needed.
Compare the Attwood MPN, gauge and hose
| Part number | Type / option | Capacity or length | Dimensions or hose ID | Fuel connection |
|---|---|---|---|---|
| 8803LP2 | 3-gallon tank, no gauge | 3 US gal | 16.6 × 11.45 × 7.3 in | ¼-in NPT tank port |
| 8803LPG2 | 3-gallon tank with gauge | 3 US gal | 16.6 × 11.45 × 7.3 in | ¼-in NPT tank port |
| 8806LP2 | 6-gallon tank, no gauge | 6 US gal | 19.82 × 13.50 × 9.16 in | ¼-in NPT tank port |
| 8806LPG2 | 6-gallon tank with gauge | 6 US gal | 19.82 × 13.50 × 9.16 in | ¼-in NPT tank port |
| 951606ULP7 | 5/16-in primer-bulb line | 6 ft long | 5/16-in hose ID | No tank or engine fittings included |
| 93806ULP7 | 3/8-in primer-bulb line | 6 ft long | 3/8-in hose ID | No tank or engine fittings included |
| 93806UFDV7 | 3/8-in line with demand valve | 6 ft long | 3/8-in hose ID | No tank or engine fittings included |
Tank dimensions are manufacturer exterior dimensions in inches. Hose ID is inside diameter and is not the same measurement as the tank's threaded fitting.
Check the matching product photographs
Use the manufacturer numbers and the corresponding listings to check each item's condition, included parts and current availability.
Portable tanks with and without gauges
The four LP2-series tanks differ by capacity and whether a fuel-level gauge is included. Their threaded tank ports do not determine the correct outboard-side connector.
Primer-bulb hoses and fuel-demand valve
All three illustrated hose assemblies are six feet long and require separately selected tank and engine fittings. Choose the correct hose inside diameter and fuel-demand-valve arrangement.
UsedRVParts product viewing and pickup in Kelowna are by appointment. Check each item listing for condition and availability.