09250-00681 COUPLING ASSY Denso Cross

Diesel Exhaust Fluid (DEF)
Two container sizes of DEF are available through the Cat® dealers in North America. DEF must meet ISO 22241-1 specifications.
Table 1
Tool Part Number Description
350-8733 Diesel Exhaust Fluid 9.5 L (2.5 US gal) bottle
350-8734 Diesel Exhaust Fluid 1378 L (364 US gal) tote
443-0955 Removal Tool DEF filter removal tool Dispensing Equipment
Three different dispensing kits are offered to protect DEF quality. Optional flow meter and coupler are also available.
Table 2
Tool Part Number Description
422-1185 Pump Adapter (DEF DISPENSER) 12 V dispenser unit
423-7843 Pump Adapter (DEF DISPENSER) 110 V dispenser unit
423-7844 Pump Adapter (DEF DISPENSER) 230 V dispenser unit with"smart start"tote base
423-7795 Flow Meter In line DEF flow meter
423-7799 Coupler MicroMatic coupler Dispenser Unit Repair Parts
Table 3
Tool Part Number Description
436-6643 Repair Kit 12 V dispenser unit
436-6646 Diesel Exhaust Fluid Pump 12 V repair group
436-6642 Hose 20'/4'
436-6644 Swivel
436-6645 Repair Kit 1/2 hp pump
436-6647 Nozzle (DIESEL EXHAUST FLUID) Dispensing nozzle Storage and Transportation
Preventing DEF contamination does not stop at the pump. Protect your DEF supply with climate-specific enclosures and transportation tanks.
Table 4
Part Number Description
435-8671 Dispenser Warm-weather enclosure
435-8672 Dispenser Cold-weather enclosure
460-4077 Tank 121 L (32 US gal)
460-4078 Tank 269 L (71 US gal) Fast Fill Vehicle Interface
Illustration 1 g06516654
584-9979 Nozzle As
Table 5
584-9979 Nozzle As
Repair parts for 584-9979 Nozzle As
- 587-3371 Rear Cap
- 587-3372 Handle
- 587-3373 Hose (3/4")
- 587-3374 O-Ring Seal
- 587-3375 Handle (optional)
459-9296 Receiver As (Permanently mounted on vehicle)
For heated DEF hose repair connectors, kits, and instructions , refer to Service Magazine, M0103829, "Repair Kits for Quick Connect Diesel Exhaust Fluid (DEF) Line Fittings Are Now Available for Certain Cat® Machine Engines". Testing Equipment
Test your DEF supply and DEF injector with DEF-specific testing equipment. Complete kits or individual testing components are available for your needs.
Table 6
441-0451 Tool Gp (includes hard case, foam insert, and hardware)
- 441-0454 Container
- 443-7055 Test Kit
- 398-4985 Probe
- 398-4987 Probe
- 398-5080 Lead
- 398-5081 Lead
- 398-5083 Plug
450-1515 Tool Gp (DIESEL EXHAUST FLUID) (includes hard case, foam insert, and hardware)
- 441-0454 Container
- 398-4985 Probe
- 398-4987 Probe
- 398-5080 Lead
- 398-5081 Lead
- 398-5083 Plug
441-0454 Container
443-7055 Test Kit
431-7087 Tool Gp (REFRACTOMETER (DEF))
360-0774 Refractometer
372-5260 Test Lead Tool Group
576-6134 Test Strip