Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
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.

4
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—4 hr find
Oil filter—250 hr find
Belt—3 hr find
Coolant—
Coolant filter—5060 hr find
Oil36.0—50 hr

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
193-0244Sender, Oil Pressure (E1)1Sensor PartsGeek
193-0322Sender, Level - Coolant1Sensor PartsGeek
193-0353Sender, Temperature - Oil1Sensor PartsGeek
309-0269Air Cleaner (Includes Element) - Standard1Sensor PartsGeek
333-0468Thermostat1Thermostat PartsGeek
399-0117Pump, Fuel Tank (P103)1Pump PartsGeek
416-0632Cable, Electrical - Starter To Ground1Starter PartsGeek
501-0084Sender - Tachometer5Sensor PartsGeek
502-0942Elbow, Hose - 90 (3/8 x 5/8)17Hose PartsGeek
503-0189Clamp, Hose1Hose PartsGeek
509-0272Seal1Seal PartsGeek
509-0272-02Seal1Seal PartsGeek
870-0257Nut, Locking (5/16−18) * − Parts Used On Heat Exchanger Installations With Automatic Water Regulator # − Cut Off And Discard Swivel Connector End Of Hose So That 1/8 NPT Connector End Measures Length As Indicated Above + − Parts Used On Heat Exchanger Installations Without Automatic Water Regulator1Hose PartsGeek
130-37292Service part / kit PartsGeek
130-37305Service part / kit PartsGeek
130-373110Service part / kit PartsGeek
130-373213Service part / kit PartsGeek
130-37346Service part / kit PartsGeek
130-373628Service part / kit PartsGeek
130-37379Service part / kit PartsGeek
130-373811Service part / kit PartsGeek
130-373912Service part / kit PartsGeek
130-374016Service part / kit PartsGeek FridayParts $94.86
130-37443Service part / kit PartsGeek
140-1260Fitting, Safety Filter2Service part / kit Amazon eBay $35.00 PartsGeek
140-1548Indicator, Service2Service part / kit Amazon eBay PartsGeek
140-2052Band2Service part / kit Amazon eBay $150.71 PartsGeek
140-2097Cleaner1Service part / kit PartsGeek FridayParts $856.89
140-2098Hood, Air Inlet (Includes Mounting Clamp)1Service part / kit Amazon eBay $49.99 PartsGeek
140-2099Band2Service part / kit Amazon eBay $19.99 PartsGeek
140-245913racket1Service part / kit PartsGeek
140-2463140-2464 3 98-5822 4 309-0436 505-0117 5 309-0437 SOS- SOS 503 8 501 9 1 SO- lO 130 11 982Service part / kit PartsGeek
140-24643Service part / kit PartsGeek
140-2472Tube1Service part / kit PartsGeek
140-2474Tube1Service part / kit PartsGeek
155-06584Service part / kit PartsGeek
155-24372Service part / kit PartsGeek
159-120815Service part / kit PartsGeek
159-12312Service part / kit PartsGeek
159-12323Service part / kit PartsGeek
193-00293Service part / kit PartsGeek
193-0128. Gauge, Pressure (Includes1Service part / kit PartsGeek
300-4111-02Board, Relay - Alarm (Includes Relay)1Service part / kit PartsGeek
300-4111-041Service part / kit PartsGeek
303-1704EIbow1Service part / kit PartsGeek
308-0916821-OCJIO10Service part / kit PartsGeek
309-018029Service part / kit PartsGeek
309-0437505-0117 42 501-0520 43 501-0524 1-5 TABLE OF CONTENTS CONTROL SECTION GENERATOR SET CONTROL1Service part / kit PartsGeek
319-04899Service part / kit PartsGeek
319-04908Service part / kit PartsGeek
323-1304tiotming, Umector1Service part / kit PartsGeek
333-2947OFAA. OFAB, WAC1Service part / kit PartsGeek
333-2948OFOF. OFCB. OFCC1Service part / kit PartsGeek
338-2446Harness1Service part / kit PartsGeek
338-2538Harness1Service part / kit PartsGeek
415-0565-0214Service part / kit PartsGeek
416-0444Cable, Battery - Negative26Service part / kit PartsGeek
416-0446Cable, Battery (#2/0) 12-1/2" (Jumper)32Service part / kit PartsGeek
416-096031Service part / kit PartsGeek
501-0216Line, Fuel1Service part / kit PartsGeek
501-05527Service part / kit PartsGeek
502-0034Tube2Service part / kit PartsGeek
502-0080F1ange1Service part / kit PartsGeek
503-0881Element1Service part / kit PartsGeek
503-0882Elbow1Service part / kit PartsGeek
503-148716Service part / kit PartsGeek
503-173122Service part / kit PartsGeek
505-0004Nipple, Pipe (1.0 x 1.50)1Service part / kit PartsGeek
505-0050Nut, Cap - Hex Head (#10-32 x 30mm)1Service part / kit PartsGeek
505-008430Service part / kit PartsGeek
505-0098Band1Service part / kit PartsGeek
505-0151S26-023834Service part / kit PartsGeek
505-0166Tee, Pipe (3/4º)31Service part / kit PartsGeek
505-0356Elbow1Service part / kit PartsGeek
505-1384Bushing1Service part / kit PartsGeek
508-0015Accessory 54 (Except Voltage1Service part / kit PartsGeek
670-0517-902standoff(wlbw)(q2Service part / kit PartsGeek
800-0052Screw1Service part / kit PartsGeek
800-006538Service part / kit PartsGeek
800-0071800-0071 Set only)14Service part / kit PartsGeek
800-0088Elbow1Service part / kit PartsGeek
800-02153Service part / kit PartsGeek
800-02362Service part / kit PartsGeek
800-027024 856-0010 2 25 332-1292 1 26 809-0035 1 27 508-0015 1 28 870-0196 1 29 332-1281 1 30 137Service part / kit PartsGeek
821-0010Drain Cock, Rubber1Service part / kit PartsGeek
821-0016SCREW, CAP- HEX HEAD 7/16-14 x 3/4"4Service part / kit PartsGeek
821-0029Screw, Self–Locking – Hex Washer Head (3/8–16 x 3/4")4Service part / kit PartsGeek
821-0033Screw, Self–Locking – Hex Washer Head (7/16–14 x 3/4")8Service part / kit PartsGeek
850-0055Washer, Lock - Spring (7/16")1Service part / kit PartsGeek
850-0060Washer, Lock - Spring1Service part / kit PartsGeek
850-2008Heater, Engine Coolant1Service part / kit PartsGeek
856-0008Washer (5/ 16 “),Shakeprcmf EIT1Service part / kit PartsGeek
856-0010Washer, Lock - EIT (3/8”)1Service part / kit PartsGeek
856-0013Washer1Service part / kit PartsGeek
862-003539Service part / kit PartsGeek
870-0212Nut, Locking (1/4-20)4Service part / kit PartsGeek
870-0221Harness, Wiring - Remote Control - Spec S (Includes Parts Marked +) Cable - 10 Feet Cable - 30.Feet Housing, Connector Pin Pin, Connector - Male Control44Service part / kit PartsGeek
870-0281Nut, Self-Locking – Hex Washer Head (3/8–16)2Service part / kit PartsGeek
870-0437Adapter, Filter - Indicator20Service part / kit PartsGeek
921-001830Service part / kit PartsGeek
960-0138Service part / kit PartsGeek
960-0139Service part / kit PartsGeek
960-0240Service part / kit PartsGeek

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 sheet — Cummins-installation-manual-DFAA-DFAB-DFAC-DFBC-DFBF-DFBD-DFBE-DFBF-DFCB-DFCC-DFCE-DFEB-DFEC-DFED-DFFA-DFFB-DFGA-DFGB-DFGC-DFJA-DFJB-DFJC-DFJD-DFLA-DFLB-DFLC-DFLD-DFLE-DFMB-DQAA-DQAB-DQBA-DQBB (Cummins/Onan)Reference — 9-3Parts manual — 0932-0112 Onan Post-Sale Literature Index (07-1998) (Cummins/Onan)Parts manual — 960-0240 Onan DFEB DFEC DFFA DFFB KTA KTT Parts Manual (11-1992) (Cummins/Onan)Parts manual — 960-0286 Cummins DFEB DFEC DFED DFFB Parts Manual (7-2001) (Cummins/Onan)Service manual — 960-0504 Onan DFxx series Generator Control Service Manual 04-1993 (Cummins/Onan)Service manual — 960-0507C Cummins DFAA thru DFMB DQAA Service Manual (2-2004) (Cummins/Onan)Service manual — 960-0607 Onan DFEB DFEC DFFB Installation Manual (8-1992) (Cummins/Onan)Service manual — Cummins-3100-PowerCommand-DFAA-DFAB-DFAC-DFBC-DFBD-DFBE-DFBF-DFCB-DFCC-DFCE-DFEB-DFEC-DFED-DFFA-DFFB-DFGA-DFGB-DFGC-DFJA-DFJB-DFJC-DFJD-DFLA-DFLB-DFLC-DFLD-DFLE-DFMB-DQAA-DQAB-DQBB (Cummins/Onan)Service manual — Detector Control Generator Set Service Manual (Cummins/Onan)