⚡ Upgrade your engine’s breath — power, precision, and peak performance in one kit!
The Ruma Muffler Kit is a premium replacement exhaust assembly designed for Honda GX340, GX390, and GX420 engines ranging from 11 to 18 horsepower. This comprehensive kit includes the muffler, exhaust manifold, gaskets, mounting hardware, and a spark plug, ensuring a complete and easy rebuild. Compatible with a broad spectrum of power equipment such as pressure washers, snowblowers, and log splitters, it also fits many Honda clone engines, delivering OEM-level quality and reliability for professional-grade engine maintenance.
| Brand | Ruma |
| Item dimensions L x W x H | 7.3 x 7.3 x 6.1 inches |
| Vehicle Service Type | Honda GX390 GX340 GX420 and most other 11hp 13hp 14hp 15hp 16hp engine and power equipment |
| Shape | Square |
| UPC | 747492774261 |
| Manufacturer | Ruma |
| OEM Part Number | 18310-ZE2-W61,18310-ZE2-W62,18320-ZE2-W61,18320-ZE2-W62,18320-ZE3-W02,18330-ZE2-W00, 18330-ZH9-N00. |
| Automotive Fit Type | Vehicle Specific Fit |
| Model | Exhaust muffler assembly kit for Honda GX390 GX340 GX420 engine power equipment |
| Item Weight | 4.5 pounds |
| Product Dimensions | 7.3 x 7.3 x 6.1 inches |
| Item model number | HD393 |
| Exterior | Painted |
| Manufacturer Part Number | HD394 |
| Position | Top |
M**T
Fit perfectly
Fit perfect on a Briggs and stratton XR 420cc 13.5hp motor.
A**R
Good
Worked perfect would buy again
C**Y
Impressed with the kit!
Bolted right up and works great!
M**E
Honda mufflers
It worked just as it supposed to.
R**N
Perfect fit
Everything you could need is included. It installed in minutes and was a perfect fit. I could not be happier and my pressure washer looks great. The OEM muffler broke off.
W**S
Exact fit
Easy install, appears to be very well made.
A**R
Fit motor just right.
I have a Honda GX340 that I've had for several years, it was a bit of a tug getting the old nuts off of the mounting studs, but didn't break one off...... this muffler went right on with no problem. Of course, time will tell as to its goodness. It's a good replacement for the expense.
J**N
Excellent
Repair power washer
Trustpilot
1 week ago
2 days ago
