Fuel Filter Pair – Models 320/07394 & 320/07201

Two spin-on fuel-filter cartridges from the same heavy-equipment filter family, specified for backhoe loaders, wheeled excavators, and telescopic handlers in the 4.5–6.7 L diesel class. 320/07394 is a primary diesel spin-on (80.3 mm OD × 148.5 mm, inlet Ø10 mm / outlet Ø8 mm) crossing to common WK9036 / FF5794 / P765325 patterns. 320/07201 is a companion fuel-stage spin-on in the same 320/ family, sharing thread and gasket envelope with 07394 — typically deployed as a secondary / pre-filter on dual-head fuel bases or as the primary on lower-flow variants.

Key Features

• 320/07394: Cellulose + glass-fiber composite media, 99.7 % efficiency, 2000–4000 h service life, nitrile gasket, 10 mm inlet / 8 mm outlet barb or push-fit per head

  
  

• 320/07201: Cellulose media, 30 µm nominal class (backhoe fuel-stage spec), same ~80–85 mm OD / ~150–180 mm length envelope as 07394, shared gasket & thread family

  
  

• Rolled steel shell, zinc-plated end caps, corrosion-resistant finish

  
  

• Both integrate with the machine's head-mounted bypass — no loose parts on service

  
  

• NBR seal standard; FKM available for biodiesel / HVO duty

  
  

Technical Specifications

Application Guidance

320/07394 – Primary diesel filter on backhoe loaders (3CX/4CX-class), wheeled excavators, and telescopic handlers powered by 4.5–6.7 L diesels (Dieselmax-family and equivalents). The 10/8 mm barb pair and 80 mm OD fit the standard rear-mount fuel-head on these platforms. Crosses to Mann WK9036, Donaldson P765325, Fleetguard FF5794 — useful when the head is an aftermarket replacement accepting those patterns.

320/07201 – Companion fuel-stage element in the same 320/ backhoe filter family. On dual-head fuel bases (pre + primary), 07201 typically sits upstream as the coarser pre-filter stripping bulk contamination, while 07394 handles the finer final stage downstream. On single-head machines, 07201 may serve as the sole fuel filter on lower-flow variants — confirm your head layout (single vs. dual) before selecting.

📎 Both belong to the 320/07xxx backhoe fuel-kit family (siblings include 320/07057, 320/07068, 320/07155, 320/07280). Confirm head type — some 3CX variants use a single 07394; others use 07201 + 07394 in series. Mixing them backwards (fine-first, coarse-second) defeats staged efficiency.

Fluid Compatibility

• Petroleum diesel (EN 590 / ASTM D975)

  
  

• Biodiesel blends up to B20 — use FKM seals for B30+ or HVO

  
  

• Not for gasoline / petrol circuits

  
  

• Water separation performance per ISO 4020 — drain water trap on head at each service

  
  

Installation & Service

1. Depressurize fuel system; relieve residual pressure at the Schrader or bleed screw.

   
   

2. Clean head face, inspect center tube and threads. For spin-on with integrated barb, confirm inlet/outlet orientation before loosening — 10 mm = inlet side typical, 8 mm = outlet.

   
   

3. Lubricate gasket with clean diesel, spin on by hand until seated + ¾ turn. No strap wrench on the canister.

   
   

4. Prime the system: on backhoe loaders, cycle the lift pump 3–5 times or crank briefly with throttle pinned (per OEM procedure) until bubbles clear at the injector return or head bleed.

   
   

5. Check for weep at the head gasket and barb clamps after first 10 minutes of run.

   
   

6. Replace per 2000–4000 h or when ΔP / water-indicator signals. On dual-head layouts, replace both stages together to maintain staged efficiency.

   
   

Quality Assurance

• SAE J1985 – fuel-filter efficiency

  
  

• ISO 4020 – fuel-filter performance & water separation

  
  

• Shell burst / pressure-deformation test per batch

  
  

• Media integrity & bubble-point sampling

  
  

Ordering

Quote 320/07394 (primary, 80.3×148.5 mm, 10/8 mm barb, 99.7 %) or 320/07201 (fuel-stage, ~82×160 mm est., 30 µm nom., backhoe family) with seal material. Cross to WK9036 / P765325 / FF5794 (320/07394) and common 320/07xxx backhoe fuel-kit siblings available on request — provide machine model (backhoe / wheeled excavator) and existing OEM number for confirmation.

All values nominal; 320/07201 dimensions estimated from 320/07xxx family pattern — confirm OD/length, inlet/outlet barb size, and head layout (single vs. dual stage) against your actual fuel-head before installation.