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Home›Cummins/Onan›Cummins/Onan DFFB

Cummins/Onan DFFB Generator Set

The Cummins/Onan DFFB is a Diesel generator set powered by a Cummins/Onan Cummins DFFB engine.

5
Document types

How to read your Cummins/Onan serial & model number →

Specifications

FuelDiesel

Engine

Cummins/Onan Cummins DFFB

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filter— find
Fuel filter— find
Oil filter— find
Belt— find
Coolant90.0 L—
Coolant filter— find
OilSAE 10W-3045.0 L—

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.

Common questions

What engine does the Cummins/Onan DFFB use?

The Cummins/Onan DFFB is powered by the Cummins/Onan Cummins DFFB engine.

What fuel does the Cummins/Onan DFFB use?

The Cummins/Onan DFFB runs on Diesel.

Parts

103
Part #DescriptionQtySystem
140-1548Element, Air Cleaner17Air filter Amazon eBay $91.60
193-0244Sender, Oil Pressure (E1)25Sensor buy
193-0322Sender, Low Coolant - Optional2Sensor buy
193-0353Sender, Temperature - Oil33Sensor buy
309-0269Air Cleaner (Includes Element) - Standard24Air filter ironwing $32.86
333-0468Thermostat1Thermostat buy
399-0117Pump, Fuel Tank (P103)16Pump buy
416-0632Cable, Electrical - Starter To Ground27Starter buy
501-0084Sender - Tachometer5Sensor buy
502-0942Elbow, Hose - 90 (3/8 x 5/8)17Hose buy
503-0189Clamp, Hose4Hose buy
509-0272Seal1Seal buy
509-0272-02Seal1Seal buy
130-37292Service part / kit buy
130-37305Service part / kit buy
130-373110Service part / kit buy
130-373213Service part / kit buy
130-37346Service part / kit buy
130-373628Service part / kit buy
130-37379Service part / kit buy
130-373811Service part / kit buy
130-373912Service part / kit buy
130-374016Service part / kit FridayParts $94.86
130-37443Service part / kit buy
140-1260Fitting, Safety Filter18Service part / kit Amazon eBay $35.00
140-2052Band2Service part / kit Amazon eBay $150.71
140-2097Cleaner1Service part / kit FridayParts $856.89
140-2098Hood.1Service part / kit Amazon eBay $49.99
140-2099Band2Service part / kit Amazon eBay $19.99
140-245913racket1Service part / kit buy
140-24632Service part / kit buy
140-24643Service part / kit buy
140-2472Tube1Service part / kit buy
140-2474Tube1Service part / kit buy
155-06584Service part / kit buy
155-24372Service part / kit buy
159-120815Service part / kit buy
159-12312Service part / kit buy
159-12323Service part / kit buy
193-00293Service part / kit buy
193-01282Service part / kit buy
300-4111-02Board, Relay - Alarm (Includes Relay)1Service part / kit buy
300-4111-041Service part / kit buy
303-1704EIbow1Service part / kit buy
308-0916821-OCJIO10Service part / kit buy
309-018029Service part / kit buy
309-0437Genset component (SJB series)36Service part / kit buy
319-04899Service part / kit buy
319-04908Service part / kit buy
323-1304tiotming, Umector1Service part / kit buy
333-2947OFAA. OFAB, WAC1Service part / kit buy
333-2948OFOF. OFCB. OFCC1Service part / kit buy
338-2446Harness1Service part / kit dieselpartscenter $2856.56
338-2538Harness1Service part / kit dieselpartscenter $264.25
415-0565-0214Service part / kit buy
416-0444Cable, Battery - Negative26Service part / kit buy
416-0446Cable, Battery (#2/0) 12-1/2" (Jumper)32Service part / kit buy
416-096031Service part / kit buy
501-0216Line, Fuel35Service part / kit buy
501-05527Service part / kit buy
502-0034Tube2Service part / kit buy
502-0080F1ange1Service part / kit woodline $10.48
503-0881Element1Service part / kit buy
503-0882Elbow1Service part / kit buy
503-148716Service part / kit buy
503-173122Service part / kit buy
505-0004Nipple1Service part / kit buy
505-0050Nut, Cap - Hex Head (#10-32 x 30mm)11Service part / kit buy
505-008430Service part / kit buy
505-0098Band2Service part / kit buy
505-0151Bushing. Reducer (1/2 NPTF x 1/8 NPTF)34Service part / kit buy
505-0166Tee, Pipe (3/4º)31Service part / kit buy
505-0356Elbow1Service part / kit buy
505-1384Bushing1Service part / kit buy
508-001519Service part / kit buy
670-0517-902standoff(wlbw)(q2Service part / kit buy
800-0052Screw37Service part / kit buy
800-006538Service part / kit buy
800-007114Service part / kit buy
800-0088Elbow1Service part / kit buy
800-02153Service part / kit buy
800-02362Service part / kit buy
800-027037Service part / kit buy
821-001017Service part / kit buy
821-00166Service part / kit buy
821-0029Tube1Service part / kit buy
821-0033Element4Service part / kit buy
850-0055Washer, Lock - Spring (7/16")15Service part / kit buy
850-0060Washer, Lock - Spring30Service part / kit buy
850-2008Washr2Service part / kit buy
856-0008(34-lox1Service part / kit buy
856-0010Washer, Lock - EIT (3/8”)16Service part / kit buy
856-001328Service part / kit buy
862-003539Service part / kit buy
870-0212Nut, Locking (1/4-20)12Service part / kit buy
870-02215Service part / kit buy
870-0257Nut, Self-locking - Hex (5/16-18)24Service part / kit buy
870-0281Nut, Self-Locking – Hex Washer Head (3/8–16)22Service part / kit buy
870-043720Service part / kit buy
921-001830Service part / kit buy
960-0138Service part / kit buy
960-0139Service part / kit buy
960-0240Service part / kit buy

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Available documents

Spec sheetOperator's manualReferenceParts manualService manual