{"product_id":"walker-18406-exhaust-muffler","title":"Walker 18406 Exhaust Muffler","description":"\u003ch2\u003eWalker SoundFX Direct Fit Muffler for 1987 GM Trucks\u003c\/h2\u003e\u003cp\u003eWalker SoundFX Direct Fit muffler part number 18406 is a specific-fit exhaust muffler for select 1987 Chevrolet and GMC trucks. It uses an oval steel body with an aluminized finish to support longer service life than low-carbon steel, while maintaining a clean appearance and controlled exhaust tone.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpecific-fit replacement for select 1987 Chevrolet R10, R20, V10, V20 and GMC R1500, R2500, V1500, V2500 applications\u003c\/li\u003e\n\u003cli\u003eOval muffler design with 2.5-inch inlet and 2.5-inch outlet\u003c\/li\u003e\n\u003cli\u003eCenter inlet and offset outlet configuration\u003c\/li\u003e\n\u003cli\u003e100% aluminized steel construction for improved corrosion resistance versus low-carbon steel\u003c\/li\u003e\n\u003cli\u003eMechanical interior joints and spun-locked heads for added durability\u003c\/li\u003e\n\u003cli\u003eWalker SoundFX Direct Fit line for OE-style replacement on GM truck exhaust systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe Walker SoundFX Direct Fit muffler 18406 is built for 1987 Chevrolet and GMC full-size truck applications, including Chevrolet R10, R20, V10, V20 and GMC R1500, R2500, V1500, V2500 models. Its combination muffler design, 25-inch overall length, 21-inch body length, and 4.25-inch body height provide a direct-fit service part for exhaust repairs where the original muffler has worn out, rusted through, or become excessively noisy. This part cross-references AP Exhaust 700109 for the same application.\u003c\/p\u003e\u003cp\u003eWalker’s SoundFX Direct Fit product line focuses on replacement mufflers that match vehicle-specific fitment while using aluminized steel construction for durability. For 1987 Chevrolet R10 and GMC R1500 applications, as well as the listed R20, V10, V20, R2500, V1500, and V2500 configurations, part number 18406 supports a straightforward exhaust service solution with a 2.5-inch pipe connection at both ends.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacing a rusted, leaking, or damaged factory muffler\u003c\/li\u003e\n\u003cli\u003eRestoring exhaust flow after corrosion in the muffler body\u003c\/li\u003e\n\u003cli\u003eAddressing excessive exhaust noise from a failing muffler\u003c\/li\u003e\n\u003cli\u003eRepairing exhaust systems on 1987 Chevrolet and GMC trucks with the listed emissions and catalytic converter configurations\u003c\/li\u003e\n\u003cli\u003eServicing welded exhaust assemblies where the muffler section must be replaced\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eCompatible With 1987 Chevrolet R10, N\/A; 1987 Chevrolet R20, N\/A; 1987 Chevrolet V10, N\/A; 1987 Chevrolet V20, N\/A; 1987 GMC R1500, N\/A; 1987 GMC R2500, N\/A; 1987 GMC V1500, N\/A; and 1987 GMC V2500, N\/A, with the notes shown in the fitment data. Verify inlet and outlet orientation before installation: this muffler uses a center inlet and offset outlet layout. If the vehicle has a welded assembly, replace all required exhaust sections listed for the repair rather than only the muffler body.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eWalker SoundFX Direct Fit mufflers are built with 100% aluminized steel, mechanical interior joints, and spun-locked heads to support durability in exhaust service. The aluminized finish is used to improve service life compared with low-carbon steel construction.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":52071720812725,"sku":"BDCN-18406","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/WK_18406_Fro.jpg?v=1775141919","url":"https:\/\/www.partcatalog.com\/products\/walker-18406-exhaust-muffler","provider":"PartCatalog","version":"1.0","type":"link"}