Fuel & Hydraulic Service Filter Pair – Models 320/07853 & 320/917804

Two spin-on filter cartridges from the same 320/ family used across backhoe loaders, wheeled excavators, and telescopic handlers in the 4.5–6.7 L diesel class. 320/07853 is specified as a fuel-system or hydraulic-aux spin-on on 3CX/4CX-class machines, while 320/917804 is a newer-pattern companion in the same family — often crossed to updated fuel-primary or hydraulic return-guard trims on later-production units. Both use rolled steel shells and nitrile sealing, with glass-fiber variant available for hydraulic-aux duty.

Key Features

• 320/07853: Spin-on canister, ~80–85 mm OD × ~150–180 mm length, 1-12 UNF or M20×1.5 thread per head, cellulose (fuel) or glass-fiber 10–15 µm (hyd-aux opt.)

  
  

• 320/917804: Spin-on, ~93–96 mm OD × ~180–210 mm length, M20×1.5 or 1-12 UNF, later-pattern trim — fuel-primary or hydraulic return-guard on updated heads

  
  

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

  
  

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

  
  

• Bypass integrated per head design; anti-drain-back on hydraulic-aux trim

  
  

Technical Specifications

Application Guidance

320/07853 – Fuel-stage spin-on on 3CX/4CX-class backhoe loaders and compatible wheeled excavators with 4.5–6.7 L diesels. Also deployable as hydraulic-aux (steering-return, compressor-lube) in glass-fiber 10–15 µm trim on the same chassis where the head accepts a spin-on canister.

320/917804 – Later-pattern companion in the 320/ family, often found on updated-head variants of the same backhoe/telescopic-handler platforms. May serve as fuel-primary (replacing an older 320/07394-type) or as hydraulic return-guard on machines that received a head revision mid-production. The slightly longer canister (~180–210 mm) gives more media area than 07853.

📎 Both belong to the 320/07xxx–320/91xxxx backhoe family (siblings: 320/07057, 320/07068, 320/07155, 320/07201, 320/07280, 320/07394). Confirm head layout — some machines run a single spin-on, others run 07853 + 917804 in series (coarse pre → fine primary). Swapping them backwards defeats staged efficiency.

Fluid Compatibility

• Petroleum diesel (EN 590 / ASTM D975)

  
  

• Biodiesel B20; B30+ / HVO → FKM seals recommended

  
  

• Mineral hydraulic oil (HM/HV) – glass-fiber hyd-aux trim only

  
  

• HFC water-glycol – NBR acceptable; FKM recommended

  
  

• Not for gasoline / petrol circuits

  
  

Installation & Service

1. Depressurize system; relieve residual pressure at head bleed.

   
   

2. Clean head face, inspect center tube and threads. Lubricate gasket with clean diesel (fuel duty) or hydraulic oil (hyd-aux).

   
   

3. Spin on by hand until seated + ¾ turn. No strap wrench on the canister.

   
   

4. Prime fuel system per OEM procedure; for hyd-aux, pre-fill if head allows, bleed air at housing.

   
   

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

   
   

Quality Assurance

• SAE J1985 – fuel-filter efficiency

  
  

• ISO 16889 – multi-pass β-ratio (hyd-aux glass-fiber trim)

  
  

• ISO 2941 – collapse/burst (hyd cage)

  
  

• Shell burst test per batch

  
  

Ordering

Quote 320/07853 (~80–85×150–180 mm est., fuel-stage / hyd-aux, 3CX/4CX-class) or 320/917804 (~93–96×180–210 mm est., updated-head fuel-primary / hyd-return, same platform family) with duty (cellulose fuel / glass-fiber hyd-aux), micron, and seal choice. Cross to common 320/07xxx / 320/91xxxx backhoe fuel-kit siblings available on request — provide machine model + serial number (confirm build year, as 07853 vs. 917804 head revision varies mid-production).

All dimensions nominal / estimated from 320/ family pattern; confirm OD/length, thread (1-12 UNF vs. M20×1.5), head layout (single vs. dual stage), and duty (fuel vs. hyd-aux) against your actual filter head before installation.