No matter the condition of your 1987 Grand National, OPGI has the Harmonic Balancers you need to boost performance and get you back on the road. We currently carry ten Harmonic Balancers to choose from for your 1987 Grand National, and our Price Match Guaranteed prices range from as little as $25.64 up to $198.99. OPGI offers SCAT plus three other trusted brands of Harmonic Balancers for your 1987 Grand National, to help you find quality parts you can rely on. With OPGI's 45-day return policy and thousands of customer reviews, you can shop with the utmost confidence. Enjoy parts delivered directly to your home, or visit our sunny Southern California Showroom & Warehouse to check out our Harmonic Balancers in person.