Onan RV Generator Parts Guide: Maximize Performance and Longevity

Onan Parts Guide

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.