Onan RV Generator Parts Guide

This guide details the parts needed to maintain your Cummins Onan generator. Refer to this guide for selecting the appropriate filters, oil, spark plugs, and tune-up kits.

Cummins Onan RV QG: Camp Power, MicroLite, MicroQuiet

Click Part Number or Capacity to be directed to the Product

Model/Series	Spec Letter	Oil Filter	Oil Capacity	Air Filter	Fuel Filter	Spark Plug	Tune-up Kit
KVD	A-B	NA	1 quart	140-2105	149-2137	167-0263-02	Electronic Ignition
KV	A-L	NA	1 quart	140-2105	149-2137	167-0263-02	Electronic Ignition
KVC	A-C	NA	1 quart	140-2105	149-2137	167-0263-02	Electronic Ignition
KYD 50 Hz	A-B	NA	1.6 quarts	140-3280	149-2457	167-0305	Electronic Ignition
KYD 60 Hz	A-B	NA	1.6 quarts	140-3280	149-2457	167-0275	Electronic Ignition
KY 50 Hz	B-H	NA	1.6 quarts	140-3280	149-2457	167-0305	Electronic Ignition
KY 60 Hz	A	NA	1.6 quarts	140-2609	149-2457	167-0275	Electronic Ignition
KY 50 Hz	J-M	NA	1.6 quarts	140-3280	149-2457	167-0305	Electronic Ignition

Cummins Onan RV QG: Emerald Advantage, Onan Marquis Gold, Onan Marquis Platinum

Click Part Number or Capacity to be directed to the Product

Model/Series	Spec Letter	Oil Filter	Oil Capacity	Air Filter	Fuel Filter	Spark Plug	Tune-up Kit
EFI/HGJAC	A-D	122-0836	2 quarts	140-3116	149-2648	167-1638	Electronic Ignition
Carb - HGJAB	A-D	122-0836	2 quarts	140-3116	149-2648	167-1638	Electronic Ignition
LP Liquid/HGJAC	A-D	122-0836	2 quarts	140-3116	149-2648	167-1638	Electronic Ignition
EFI/HGJAA	A-D	122-0836	2 quarts	140-3116	149-2648	167-1638	Electronic Ignition

Note: At fuel pump use 149-2341-01; At carb replace filter with A026E259 adaptor.

Cummins Onan RV QD (Onan Quiet Diesel)

Click Part Number or Capacity to be directed to the Product

Model/Series	Spec Letter	Oil Filter	Oil Capacity	Air Filter	Fuel Filter	Glow Plug	Tune-up Kit
HDCAA/AB	A-D	187-1000	6.7 quarts	140-3071	149-2513	187-1289	—
HDKAH	A-K, L	122-0833	3 quarts	140-2897	149-2513	147-0860	185-5421
HDKAJ	A-K, L	122-0833	3 quarts	140-2897	149-2513	147-0860	185-5421
HDKAK	A-K, L	122-0833	3 quarts	140-2897	149-2513	147-0860	185-5421
HDKBA	A-E	122-0833	2 quarts	140-3351	149-2513	185-5421	—
HDKCA/CB	A-C	122-0893	5.9 quarts	140-3071	149-2513	185-5990	—
HDZAA	A-B	Clean every 1000 hrs	1.1 quarts	140-4151	149-2834	—	—

Onan HQD Series

Click Part Number or Capacity to be directed to the Product

Model/Series	Spec Letter	Oil Filter	Oil Capacity	Air Filter	Fuel Filter	Glow Plug	Tune-up Kit
HQDPA	A-C	122-0833	2.2 quarts	140-2897	147-0860	185-5421	—
HQDPB	A, B	185-5835	2.2 quarts	140-3071	147-0860	185-5421	333-0802
HQDPC	C	122-0833	2.8 quarts	140-2897	147-0860	185-5421	—

Onan Emerald™

Click Part Number or Capacity to be directed to the Product

Model/Series	Spec Letter	Oil Filter	Oil Capacity	Air Filter	Fuel Filter	Spark Plug	Tune-up Kit
BGE	A-E, F	122-0645	3.5 quarts	140-2379	—, 149-2279	167-0272	9" 167-1615-01/ 26" 167-1602
BGE	G, H, J-P	122-0645	3.5 quarts	140-2379	149-2279, 149-1353, 149-2333	167-0272	9" 167-1615-01/ 26" 167-1602
BGEL	A-E	122-0645	3.5 quarts	140-2379	148-0898	167-0272	9" 167-1615-01/ 26" 167-1602
NHE	A-E	122-0800	3.5 quarts	140-2379	—	167-0272	9" 167-1615-01/ 26" 167-1602
Prior to 9/87 NHE Begin 9/87 NHE	F	122-0800	3.5 quarts	140-2379	149-2279	167-0272	160-1349-01
NHE	G, H, J-P	122-0800	3.5 quarts	140-2379	149-2279, 149-1353, 149-2333	167-0272	9" 167-1615-01/ 26" 167-1602
NHEL	A-E	122-0800	3.5 quarts	140-2379	148-0898	167-0272	9" 167-1615-01/ 26" 167-1602
Prior to 9/87 NHEL Begin 9/87 NHEL	F	122-0645	3.5 quarts	140-2379	149-2279	167-0272	160-1349-01

Onan Marquis™

Click Part Number or Capacity to be directed to the Product

Model/Series	Spec Letter	Oil Filter	Oil Capacity	Air Filter	Fuel Filter	Spark Plug	Tune-up Kit	Ignition Type
Gasoline/BGM	A-F, G-H	122-0645	3.5 quarts	140-2379	149-2279, 149-2341	167-0272	9" 167-1625-01/ 23" 167-1625-02	Electronic Ignition
Gasoline/NHM	A-F, G-H	122-0800	3.5 quarts	140-2379	149-2279, 149-2341	167-0272	23" 167-1602	Electronic Ignition
LP/NHM	All	122-0800	3.5 quarts	140-2379	148-0898	167-0272	23" 167-1602	Electronic Ignition

Older Onan® Generators

Click Part Number or Capacity to be directed to the Product

Model/Series	Spec Letter	Oil Filter	Oil Capacity	Air Filter	Fuel Filter	Spark Plug	Tune-up Kit
BF Power Drawer	A	122-0645	4 quarts	140-1220	—	167-0262	167-1616-01, 160-1154, 312-0069
BF RV	A-B	—	4 quarts	140-0495	—	167-0237	167-1602, 160-1328-01
BFA RV	A, B-D	122-0645	3.5 quarts	140-0495 (Clean every 150 hours)	—	167-0298	167-1602, 160-1348-01
BGA RV	A, B-D	122-0645	3.5 quarts	140-0495	—	167-0298	167-1602, 160-1348-01
BGAL RV	C	122-0645	3.5 quarts	140-0495	—	167-0298	167-1602, 160-1348-01
CCK Mobile/RV	A-Q, R-U	122-0800	4 quarts	—	140-0495	167-0237	167-1602
LK RV	A-L, M	—	2 quarts	—	140-1220, 149-1353	167-0237	—
NH Power Drawer	A	122-0800	3.5 quarts	140-1229	—	167-0262	167-1616-01, 160-1154, 312-0069
NH Power Drawer 9000	A-H	122-0800	3.5 quarts	140-1229	—	167-0262	167-1616-01, 160-1154, 312-0069
NH RV	A-H, J-N, P-R	122-0800	3.5 quarts	140-0495	—	167-0247, 167-0272	167-1616-01, 160-1328-01, 160-1378
NHL	P	122-0800	3.5 quarts	140-0495	—	167-0272	9" 167-1615-01/ 26" 167-1602, 160-1328-01

Older Onan Diesel Generators

Click Part Number or Capacity to be directed to the Product

Model/Series	Spec Letter	Oil Filter	Oil Capacity	Air Filter	Fuel Filter	Glow Plug	Tune-up Kit
HDKAG	A-B, C, D-F, G	185-5835	4.7 quarts	140-2842	A026K278	185-6623, 185-5421, 333-0805	—
DKC RV	A-B	122-0827	4 quarts	140-2842	149-1914-05	185-2289	—
DKD RV	A-E	122-0827	4 quarts	140-2842	149-1914-05	185-2289	—
DKG	A	122-0827	5 quarts	140-2680	A026K278	185-2289	—

Maintenance Notes

• Change oil and filters as per recommended hours or annually, whichever is sooner.
• Use only Cummins Onan Green Label Parts for optimal performance.
• If there is a discrepancy between this guide and the operator’s manual, always refer to the operator’s manual.