Sourcing Guide
A practical guide to checking OTX fuel filter assemblies by catalog code, pump configuration, port layout, mounting bracket, water-separator bowl and old-part photos.
A diesel fuel filter assembly can combine more than a replaceable filter. Depending on the design, it may include a mounting bracket, primer or electric pump, connection ports, water-separator bowl, drain and sensor provision. Those details are why a buyer should compare the complete unit instead of ordering from the filter canister alone.
This guide covers the OTX fuel filter assembly range TF 0007ZC-01 to TF 0021ZC-01. It explains the information that helps distinguish similar diesel filter modules before a quotation is prepared.
A similar white filter body does not prove that two assemblies can replace each other. The upper head may have a different port direction, the bracket may mount at a different angle, and one unit may include a pump or water bowl while another does not. The parts should be compared as one complete fuel-system module.
Take photos before removing the old unit when possible. An installed view shows hose routing and bracket direction, while a bench photo makes it easier to inspect the ports, drain and markings.
The current catalog record contains five codes in this group. The following descriptions are useful starting points for a matching check:
| OTX Catalog Code | Current Source Clue | What to Confirm |
|---|---|---|
| TF 0007ZC-01 | Source marking includes 612630080205 | Port count, thread sizes and bracket shape. |
| TF 0014ZC-01 | Catalog wording requires physical comparison | Full old-part image and readable marking. |
| TF 0017ZC-01 | R90T with pump and filter element | Pump type, port direction and bowl configuration. |
| TF 0019ZC-01 | R120P external thread with pump | Thread interface, pump arrangement and mounting layout. |
| TF 0021ZC-01 | R90-MER-01 with pump | Port location, connector details and drain arrangement. |
These entries are matching clues, not an automatic interchange declaration. If the source marking, port layout and old-part photo do not agree, the item should remain pending confirmation.
Fuel hoses and harnesses often have limited clearance around the engine. A housing with the same canister size but a different port direction can cause hose interference or make the bracket impossible to mount correctly. Include a wider installed photo or identify the mounting direction before ordering.
Fuel filter assemblies are commonly purchased with fuel filters, water-separator service parts, oil filters and other maintenance parts. A mixed list can keep uncertain fuel-system lines clearly marked for confirmation while confirmed service parts proceed in the same quotation.
Send the OTX catalog code or OE number, a clear photo of the complete old assembly, truck and engine information when available, required quantity and any known port or thread details. If you are buying several maintenance items, attach the complete list so related filters and chassis parts can be reviewed together.
Send a fuel filter assembly inquiry with your photos and purchase list. The assembly can then be checked against the documented code, pump configuration and physical connection details before quotation.
Use this guide to organize a clearer quote request instead of choosing from a short product list.
Part number, truck brand, model, engine model, chassis number and old-part photos help confirm the correct replacement before quotation.
Filters, brake parts, clutch parts, chassis parts, cab parts, bearings, sensors and assemblies can be checked together for one practical order.
Share quantity, packing preference and whether the order is for fleet repair, workshop use or distributor stock.
Send part numbers, truck models, chassis numbers, old-part photos or sample photos. We can help check multiple items and combine them into a practical export order.