--- product_id: 483878032 title: "Ruma Muffler Kit for Honda GX340 GX390 GX420 11HP 13HP 16HP Harbor Freight 420 Engine Water Pump Snowblower Pressure Washer with Manifold/Exhaust Pipe 2 Gasket 5 Mounting Nuts" brand: "ruma" price: "$143.96" currency: USD in_stock: true url: https://www.desertcart.us/products/483878032-ruma-muffler-kit-for-honda-gx340-gx390-gx420-11hp-13hp store_origin: US region: United States of America --- # Complete rebuild kit Fits 11-16HP Honda GX engines Includes manifold, gaskets & nuts Ruma Muffler Kit for Honda GX340 GX390 GX420 11HP 13HP 16HP Harbor Freight 420 Engine Water Pump Snowblower Pressure Washer with Manifold/Exhaust Pipe 2 Gasket 5 Mounting Nuts **Brand:** ruma **Price:** $143.96 **Availability:** ✅ In Stock ## Summary > 🔩 Upgrade your power gear with the ultimate muffler kit—because your engine deserves the best! ## Quick Answers - **What is this?** Ruma Muffler Kit for Honda GX340 GX390 GX420 11HP 13HP 16HP Harbor Freight 420 Engine Water Pump Snowblower Pressure Washer with Manifold/Exhaust Pipe 2 Gasket 5 Mounting Nuts by ruma - **How much does it cost?** $143.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/483878032-ruma-muffler-kit-for-honda-gx340-gx390-gx420-11hp-13hp) ## Best For - ruma enthusiasts ## Why This Product - Trusted ruma brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lightweight Yet Robust:** At just 2.04 kg, it balances easy handling with long-lasting performance. - • **Universal Compatibility:** Replaces OEM parts across multiple brands including Harbor Freight, Dewalt, Simpson & Honda clones. - • **Durable Painted Exterior:** Built to withstand harsh conditions while maintaining a sleek, professional look. - • **All-in-One Engine Revival:** Comes with muffler, manifold, 2 gaskets & 5 mounting nuts for seamless installation. - • **Precision Fit for Honda GX Series:** Perfectly engineered for GX340, GX390, GX420 engines powering your pressure washers, snowblowers & more. ## Overview The RumaMuffler Kit is a comprehensive exhaust muffler assembly designed for Honda GX340, GX390, and GX420 engines ranging from 11HP to 16HP. It includes all necessary components—muffler, manifold, gaskets, mounting nuts, and a spark plug—to ensure a perfect OEM replacement. Compatible with a wide range of power equipment like pressure washers, snowblowers, and water pumps, this durable, painted kit offers professional-grade reliability and easy installation, making it the go-to choice for maintaining peak engine performance. ## Description RumaMuffler Kit for Honda GX340 GX390 GX420 11HP 13HP 16HP Harbor Freight 420 Engine Water Pump Snowblower Pressure Washer with Manifold/Exhaust Pipe 2 Gasket 5 Mounting Nuts ## Features - Replaces Honda GX390 exhaust muffler assembly and Honda GX340 exhaust muffler assembly Honda GX420 exhaust muffler assembly for 13hp 11hp 16hp 389cc 390cc 337cc 338cc 340cc 420cc Honda OHV engine motor. Replaces Honda 390GX muffler,340GX muffler, muffler guard, muffler cover, muffler shield or muffler protector part number # 18310-ZE2-W61,18310-ZE2-W62,18310-Z5T-010,18320-Z5T-000 - This exhaust muffler kit includes GX 390 GX 340 Honda 11 hp muffler and Honda 13 hp muffler, exhaust pipe or exhaust manifold, 2 gaskets, 2 mounting studs and 5 nuts,as well as 1 pcs spark plug for the convenience of regular maintenance of your motor. It's complete muffler rebuild kit for honda 11hp 13hp 13.5hp 14hp 15hp 16hp 18hp engines. Everything is prepared for easily reparing your engine motor. - This Honda 390 muffler and Honda 340 muffler fits many power equipment with Honda GX340 GX390 11hp 13hp engine,including water pump WT40 WT40X WT40XK1 WT40XK2 WT40XK3 , Simpson, Dewalt, Mi-T-M, BE Power, Northstar 3800 psi 4200 psi 4400 psi pressure washer or power waher PS4240 PS4240H ALH4240 60456 60205 61028 61030 65206 65209 DXPW4440 DH4240B, many 37 ton 38 ton 40 ton 45 ton log splitters, chipper shredders, air compressors, snowblowers and more powered by Honda 340 GX 390 GX engine, except generator. - Replaces Harbor Freight 420cc exhaust muffler assembly for engine 60340 60349 69736. Replaces many other 338cc 389cc 340cc 420cc 437cc 440cc muffler of Honda clone engine, like Rato 420cc engine muffler, Champion 389cc 420cc muffler,,Powerease 420cc muffler, Loncin 389cc 420cc engine muffler, Dewalt 420cc muffler, Simpson CRX420 muffler,Genkins GK420E 420cc muffler, Ducar 389cc muffler, DH420 420cc muffler, BS 420cc muffler and many other 11hp 13hp 13.5hp 14hp 15hp 16hp 18hp engines. - All items are packed perfectly.Excellent replacement muffler assembly kit for Honda 390 and 340 engine. It is used by many small engine manufacturers on massive production. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Ruma | | Brand | Ruma | | Model | Exhaust muffler assembly kit for Honda GX390 GX340 GX420 engine power equipment | | Product Dimensions | 18.54 x 18.54 x 15.49 cm; 2.04 kg | | Item model number | HD393 | | Exterior | Painted | | Manufacturer part number | HD394 | | OEM Part Number | 18310-ZE2-W61,18310-ZE2-W62,18320-ZE2-W61,18320-ZE2-W62,18320-ZE3-W02,18330-ZE2-W00, 18330-ZH9-N00. | | Position | Top | | Item Weight | 2.04 kg | ## Product Details - **Brand:** Ruma - **Item dimensions L x W x H:** 18.5 x 18.5 x 15.5 centimetres - **Vehicle service type:** Motorcycle - **Shape:** Square - **UPC:** 747492774261 ## Images ![Ruma Muffler Kit for Honda GX340 GX390 GX420 11HP 13HP 16HP Harbor Freight 420 Engine Water Pump Snowblower Pressure Washer with Manifold/Exhaust Pipe 2 Gasket 5 Mounting Nuts - Image 1](https://m.media-amazon.com/images/I/61qG-JphodL.jpg) ## Frequently Bought Together - Ruma Muffler Kit for Honda GX340 GX390 GX420 11HP 13HP 16HP Harbor Freight 420 Engine Water Pump Snowblower Pressure Washer with Manifold/Exhaust Pipe 2 Gasket 5 Mounting Nuts - GX390 GX340 Air Filter Housing Cover with Air Cleaner Box Adapter Assembly Compatible with Hondaa GX270 270cc 301cc 420cc 389cc 190F 192F 188F, Replaces 17410-ZE2-020 17230-Z53-841 - 1PZ 2QX-SG6 Recoil Starter Pull Start Replacement for Honda GX340 GX390 GX610 GX620 11hp 13hp 28400-ZEE3-W01ZA Generator Replaces --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/483878032-ruma-muffler-kit-for-honda-gx340-gx390-gx420-11hp-13hp](https://www.desertcart.us/products/483878032-ruma-muffler-kit-for-honda-gx340-gx390-gx420-11hp-13hp) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-16*