Dorman Multi Purpose O-Ring
Dorman Multi Purpose O-Rings: Reliable Sealing for Virtually Any Repair
When a fluid leak threatens your engine, power steering system, or air conditioning, the humble O-ring is often at the center of the fix. Dorman has built a well-earned reputation as one of the automotive aftermarket's most dependable sources for replacement hardware — and their line of multi purpose O-rings is a prime example of that commitment to practical, accessible repair solutions.
Founded in 1918, Dorman has spent over a century developing repair parts that prioritize the needs of vehicle owners and professional installers alike. Their O-ring lineup reflects that philosophy: a broad selection of sizes and configurations designed to cover the most common sealing needs without requiring a trip to the dealership.
What Dorman Offers in Multi Purpose O-Rings
Dorman's multi purpose O-ring catalog spans individual standard and metric sizes as well as convenient assortment kits. Individual O-rings are available in a wide range of inside diameters — from as small as 1/8 in. up to 2-1/8 in. and beyond — with corresponding outer diameters and cross-section thicknesses to match OE specifications across many makes and models. For technicians who prefer to stock a range of sizes at once, Dorman also offers assortment kits such as the popular part #80000 O-Ring Assortment and the Pro Pack Standard O-Rings (799-451D), which contains 144 pieces covering the most frequently needed sizes.
The material quality behind Dorman's O-rings is a key differentiator. These seals are constructed from high-quality rubber compounds engineered for long-lasting durability, with options suited for everything from power steering pump rebuilds to fuel system repairs and A/C service. Certain product lines, such as the part #80020 Viton Standard O-Ring Assortment, are made from Viton fluoroelastomer — a material prized for its superior resistance to heat, fuel, and chemicals compared to standard rubber.
Dorman also offers application-specific kits, such as the Power Steering Pump O-Ring Kit (926-157), which is engineered to fit a broad range of Honda and Acura vehicles. This approach — combining general-purpose assortments with vehicle-specific kits — means that whether you are doing a quick seal swap or a more involved system repair, Dorman likely has an O-ring that matches both the dimensions and the demands of the job.
Available in Both Standard and Metric Sizes
One practical advantage of the Dorman O-ring lineup is its dual availability in standard (SAE) and metric sizes, making it equally useful for domestic and import vehicle repairs. The assortment kits are especially valued by shops that work across multiple vehicle platforms and need a reliable on-hand supply without over-investing in specialty inventory.
Backed by Dorman's team of product experts and more than 100 years of automotive experience, these O-rings are designed as direct replacements to match OE fit and function — restoring the integrity of fluid and pressure systems with a part you can trust. Whether you are sealing a cooling line, an automatic transmission circuit, or an A/C fitting, Dorman's multi purpose O-rings offer the quality and coverage to get the job done right the first time.
