Cummins/Onan QG7000i DF — Replacing Spark Plug
Maintenance
For the Cummins/Onan QG7000i DF, from the Cummins/Onan service manual.
Applies to: Cummins/Onan RV Generator Set
Procedure
- Refer to the Periodic Maintenance section for scheduled replacement.
- Screw the spark plug in by hand using a spark plug socket wrench.
- Fully tighten the spark plug until pressed against the washer.
Tools required
- Spark plug socket wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Spark plug torque: 25-30 Amazon eBay FridayParts $173.00 N.m
- Gap 0.6-0.7 mm
Full service-parts list: Cummins/Onan RV Generator Set →
Source: Cummins/Onan service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.