Cummins/Onan — Air Cleaner and Carburetor Removal
Repair & overhaul · air cleaner / carburetor
From a Cummins/Onan service manual covering: P3200i, P4300i, P4300ie, RG 3200 IS, RG 4300 IS, RG2800i. Check it applies to your exact model before use.
Applies to: Cummins/Onan P3200i, Cummins/Onan P4300ie, Subaru EX21 engine, Subaru EX27 engine
Before you start
- Use caution not to break the gasket.
Parts for this job
- 149-2137 Air filter Amazon eBay $37.20 KuduParts $7.00
Part numbers from the service-parts list for Cummins/Onan P4300ie. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Remove the air cleaner cover and element from the air cleaner.
- Loosen the two M6 nuts and one M6 bolt, and remove the air cleaner body.
- Carefully remove the carburetor from the insulator without breaking the gasket.
- Remove the sponge insulator.
Tools required
- 10mm Box wrench Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- M6 Flange nut: 2pcs
- M6 x 20mm Flange bolt: 1pce
Full service-parts list: Cummins/Onan P4300ie →
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.