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Wix

Wix 57398 Oil Filter for Cummins Onan RV QG 5500 & 7000 Generators

Wix 57398 Oil Filter for Cummins Onan RV QG 5500 & 7000 Generators

$22.00 USD
$22.00 USD
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57398

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Key Features

  • Direct aftermarket replacement for Onan OEM oil filter 122-0836 - no adapter or modification needed
  • Covers the whole Onan RV QG 5500 and QG 7000 family: HGJAA, HGJAB and HGJAC in Spec A-M, gasoline or LP
  • Also the specified filter for Commercial Mobile QG 5500 (5.5HGJAE) and Emerald Advantage, Marquis Gold and Marquis Platinum sets
  • 8 PSI bypass relief valve keeps oil moving to the engine on cold starts or if the media loads up
  • Anti-drainback valve holds oil in the filter between runs, so the generator gets pressure faster on start-up
  • Cellulose media rated at 32 microns nominal with a 7-9 GPM flow capability
  • Heavy-duty (HD) build with a 3/4-16 thread, 4.402 in height and 2.685 in outer diameter to match the OEM envelope
  • Made in the USA by Wix, one filter plus 2 quarts of oil completes a full generator service

The Wix 57398 is a spin-on, full-flow lube (engine oil) filter for Cummins Onan RV QG 5500 Series and QG 7000 Series generator sets, and it is the aftermarket replacement for Onan OEM oil filter 122-0836. It uses a 3/4-16 thread, measures 4.402" tall by 2.685" in outer diameter, and carries both an anti-drainback valve and an 8 PSI bypass relief valve.

What it fits

Per the Cummins Onan Generator Green Label Parts Reference Guide, oil filter 122-0836 is the specified oil filter for the Onan QG 5500 Series and QG 7000 Series, covering models HGJAA, HGJAB and HGJAC in Spec A–M, in both gasoline and LP configurations. That same section of the guide groups Emerald Advantage, Onan Marquis Gold and Onan Marquis Platinum sets.

Cummins Onan Commercial Mobile QG 5500 (model 5.5HGJAE, Spec A–E and J–L) also calls out oil filter 122-0836, and the factory Onan gasoline maintenance kit A049E501 — built for HGJAB, HGJAC and HGJAE — ships with 122-0836 inside it.

Cummins lists 2 quarts of oil capacity for these sets, so one filter plus two quarts covers a complete oil service.

Onan QG 5500 / QG 7000 service reference

  • Oil capacity: 2 quarts (Cummins Green Label Parts Reference Guide)
  • Factory oil: Onan OnaMax SAE 15W-40 (p/n 326-5336) — the factory gasoline maintenance kit A049E501 pairs this filter with two quarts of it
  • Companion maintenance parts (per the Cummins guide): air filter 140-3116, spark plug 167-1638, gasoline fuel filter 149-2341-01

FAQ
What oil filter does an Onan 5500 generator use?

Cummins specifies oil filter 122-0836 for the Onan RV QG 5500 Series (models HGJAA, HGJAB and HGJAC, Spec A–M, gasoline or LP). The Wix 57398 is the cross-referenced replacement for that OEM number.

What does the Wix 57398 replace?

It replaces Onan 122-0836 and cross-references to NAPA Gold 7398, Fleetguard LF16165, Fram PH10027, Baldwin B7238, Hastings B7238 / LF644, Luber-finer PH2875, Carquest 84398 and Mann-Filter W 7199.

Does it also fit the Onan RV QG 7000?

Yes. The Cummins Green Label parts guide lists 122-0836 for the QG 7000 Series alongside the QG 5500 Series, on the same HGJAA / HGJAB / HGJAC models. The Emerald Advantage, Marquis Gold and Marquis Platinum sets fall in that same group.

How much oil does the Onan QG 5500 take?

Cummins lists 2 quarts of oil capacity for the QG 5500 and QG 7000 Series sets, and the factory oil is Onan OnaMax SAE 15W-40 (p/n 326-5336) — the same oil Cummins packs two quarts of in maintenance kit A049E501. Cummins notes that if the parts guide and your operator's manual disagree, the operator's manual wins.

Specifications
material
Cellulose media
type
Spin-on lube filter, full flow
media
Cellulose
notes
UPC: 765809573987 · Country of origin: USA
style
Spin-on lube filter, full flow
gasket
2.450 in OD x 2.150 in ID x 0.210 in thick (62 x 55 x 5 mm)
duty type
HD (heavy duty), Class HA
thread size
3/4-16
max flow rate
7-9 GPM
micron rating
32 micron nominal
outer diameter
2.685 in (68 mm), top; inner diameter top closed
overall height
4.402 in (112 mm)
country of origin
USA
outer diameter top
2.685 in (68 mm); inner diameter top closed
bypass relief valve
8 PSI
anti drainback valve
Yes
nominal micron rating
32 micron
bypass relief valve setting
8 PSI

Cross References
Type Brand Part Number Description
INTERCHANGE Baldwin B7238
INTERCHANGE Carquest 84398
INTERCHANGE Fleetguard LF16165
INTERCHANGE Fram PH10027
INTERCHANGE Hastings LF644
INTERCHANGE Hastings B7238
INTERCHANGE Hifi-Filter SO10071
INTERCHANGE Luber-finer PH2875
INTERCHANGE Mann-Filter W 7199
INTERCHANGE NAPA Gold 7398
OEM Onan 122-0836

Shipping & Returns

Free shipping on orders $250+ (standard items). Oversized items ship at calculated rates.

30-day returns with RMA required. 15% restocking fee, buyer pays return shipping. Defective items returned free with full refund.

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