AUL Corp vs Diamond Warranty

Founded in 1990, AUL built their reputation as a dealership-based vehicle service contract provider before being acquired by Protective Life Insurance Company in 2022. Today, AUL-branded contracts are administered through Protective Asset Protection and remain available exclusively through franchised and independent dealerships. This means consumers cannot buy plans directly online, and pricing depends on the selling dealer, vehicle, coverage tier, deductible, and any dealership markup. AUL’s biggest strength is the breadth of their coverage lineup. Their catalog includes powertrain, stated-component, wrap, exclusionary, lifetime, hybrid, and EV, and technology-focused plans. Some products also offer Any Year Any Mileage eligibility, while most plans begin on the day of purchase with no standard waiting period. Benefits may include roadside assistance, rental reimbursement, trip interruption coverage, transferable contracts, online claims submission, and same-day claims payment on approved repairs. However, customer feedback is mixed, with concerns around claim denials, inspection delays, rental reimbursement limits, cancellation complexity, and pricing transparency. AUL may appeal to dealership buyers who want broad coverage options, but reviewing the contract carefully before signing is essential.

Diamond Warranty is a Pennsylvania-based vehicle service contract provider founded in 2006. Operating through a nationwide network of dealerships, they offer several levels of protection designed to help drivers manage repair expenses after factory warranties expire. Their plans range from basic powertrain coverage to broader exclusionary contracts, with options for used vehicles, certified pre-owned models, and drivers seeking long-term protection.

Many contracts are backed by AmTrust Financial Services and may include benefits such as roadside assistance, rental car reimbursement, and trip interruption coverage. The company focuses on dealer-distributed service contracts rather than direct online sales, which means pricing and contract details often vary by vehicle and dealership. Diamond Warranty maintains an A+ rating from the Better Business Bureau, though they are not BBB accredited.

Customer feedback across review platforms is mixed, with experiences ranging from praise for responsive representatives and straightforward claims to complaints involving coverage disputes and communication challenges. With nearly two decades in the industry and a diverse selection of plans, the provider offers several features worth examining more closely before making a decision.