Moeller 635021-10
22 in flexible pickup assembly
Shorter flexible pickup for compatible permanent marine fuel tanks.
View exact productMoeller Fuel Tank Pickup Tubes: 22-Inch vs 36-Inch & Aluminum
A fuel-tank pickup draws fuel from inside a permanently installed marine tank into the supply line. Moeller offers both flexible pickup assemblies and a separate aluminum pickup, so length alone is not enough to identify a replacement. Start with the original MPN, tank depth and connection before ordering.
Measure the tank and identify the original pickup
Tank depth
Measure from the correct pickup mounting location to the bottom of the tank following the tank maker's instructions. A 22-inch and 36-inch listed pickup are not automatically interchangeable.
Flexible or aluminum design
Moeller 635021-10 and 635022-10 are flexible pickup assemblies. The 033500-36 is a separate aluminum pickup. Select the design specified for the actual tank.
Threaded connection
Confirm the withdrawal fitting and NPT thread specifications. The 033500-36 is identified by Moeller as a 3/8-NPT × 1/4-NPT aluminum pickup; verify its mating connections before installation.
Fuel-system safety: These are fuel withdrawal components, not tank-level senders or filters. Fuel tanks and lines must be serviced using the tank and engine manufacturers' instructions, with ignition sources eliminated and the correct marine-rated fittings and seals. Never assume a replacement will fit solely because the length looks right.
Moeller fuel pickup MPN and length chart
| Part number | Listed length | Design | Replacement check |
|---|---|---|---|
| 635021-10 | 22 in | Flexible pickup assembly | Tank depth, fuel connection and original fitting |
| 635022-10 | 36 in | Flexible pickup assembly | Tank depth, fuel connection and original fitting |
| 033500-36 | 36 in | Aluminum pickup assembly | Tank depth, fuel connection and original fitting |
What makes the three models different?
635021-10: The shorter 22-inch flexible fuel pickup assembly. Its flexibility helps accommodate an appropriately designed tank, but the tank depth, mounting connection and internal clearance must still be established.
635022-10: The 36-inch version of Moeller's flexible pickup family. It is a distinct MPN from 635021-10; the extra length should not be treated as permission to substitute it into a shorter tank.
033500-36: A 36-inch aluminum fuel pickup with 3/8-NPT and 1/4-NPT connection specifications. Although its listed length matches 635022-10, it is not the same flexible construction. Check the manufacturer's drawing for the exact male/female thread arrangement and mounting geometry.
Find the exact Moeller pickup assembly
Moeller 635022-10
36 in flexible pickup assembly
Longer flexible pickup for compatible permanent marine fuel tanks.
View exact product
Moeller 033500-36
36 in aluminum pickup assembly
Separate 36-inch aluminum pickup with 3/8-inch and 1/4-inch NPT connection specifications.
View exact productInstallation considerations
Inspect the original fitting and tank for damage, corrosion and contamination. Measure the working pickup depth and follow Moeller's applicable instructions for fuel-tank withdrawal hardware. Do not cut or bend a pickup unless the manufacturer specifically permits that alteration. Have the complete fuel system checked for leaks and proper operation before running the engine.
If you are identifying a fuel-level component instead of a fuel pickup, use the Moeller tank-level sender guide. To match the external hose fittings, see the Moeller tank and engine fuel connector reference.
Common questions
Are the two 36-inch pickup tubes the same part?
No. Moeller 635022-10 is a flexible assembly, while 033500-36 is an aluminum pickup. Confirm the tank's required design and connection as well as length.
Can I use the 36-inch flexible pickup in a 22-inch tank?
No general fitment is established. Match the approved tank pickup length and original manufacturer's installation requirements; do not rely on flexibility alone.
Does a fuel pickup replace the fuel-level sender?
No. A pickup feeds fuel to the engine system. A level sender operates the fuel gauge and is selected separately.
Can I view or collect the item locally?
UsedRVParts offers viewing and pickup in Kelowna by appointment. Confirm the exact part and arrange your visit beforehand.
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