The Proform 66445.1N (100A, 1-wire, GM 10si) alternator is a perfect fit for a wide range of classic GM vehicles from the 1960s to the 1990s, including Chevrolet, Pontiac, Oldsmobile, Buick, Cadillac, and GMC. It’s designed for small-block and big-block V8s, making it a great choice for classic restorations, hot rods, and performance upgrades.ChevroletChevelle (1964–1972) – Iconic muscle car with 283, 327, 350, 396, and 454 V8sCamaro (1967–1981) – Especially models with 350 or 396 V8sImpala (1965–1985) – Full-size classic with big-block optionsMonte Carlo (1970–1988) – Popular GM personal luxury coupeC/K Series (1963–1987) – Legendary pickup trucks with SBC/BBC powerSuburban (1967–1991) – Full-size SUV with 350 and 454 V8sPontiacGTO (1964–1974) – The original muscle car, featuring 389, 400, and 455 V8sFirebird (1967–1981) – Camaro’s Pontiac twin, often equipped with a 400 V8Bonneville (1965–1981) – Full-size cruiser with Pontiac big-block powerOldsmobile442 (1964–1972) – A true muscle car legend, built on the Cutlass platformCutlass (1965–1987) – One of GM’s best-selling midsize cars, often powered by the 350 Rocket V8Delta 88 (1965–1985) – Full-size comfort with big Olds V8sBuickSkylark GS (1965–1972) – A serious muscle car rival to the GTO, featuring the 455 Stage 1 V8Electra (1965–1984) – A luxury cruiser with big V8 powerCadillacDeVille (1965–1984) – Full-size luxury, packing massive 472 or 500 cubic-inch V8sFleetwood (1965–1985) – High-end Cadillac sedans with 425-500 CID V8sGMCC/K Series (1967–1987) – Classic workhorses, GMC’s version of the Chevy C10/K10Jimmy (1970–1991) – The Blazer’s GMC twin, often fitted with a 350 or 454 V8The Proform 66445.1N alternator is an excellent upgrade over factory 37–63A units, providing reliable charging, modern performance, and a clean 1-wire hookup. Perfect for restorations, hot rods, and custom builds, it keeps your classic GM running strong!Specifications
·       Amperage Output: 100 AMP
·       Case Style: 10SIStyle
·       Finish: Chrome
·       Part Type:Alternator
·       Pulley Diameter:2 1/2"
·       Regulator Type:Internal
·       Voltage: 12 Volt
·       Wire Type:1-WireShipping
·       We do our bestto ship most items same or next day.
·       For allproducts, free fast delivery of the UPS is already included in the price.
·       UnfortunatelyUPS doesn’t accept PO box address. Please specify physical address which willguarantee faster delivery.·       Payment
·       All orders mustbe paid via PayPal.
·       You may use yourpaypal dollars, or use your MC/Visa, Amex, Discover thru your PayPal account.Returns
·       We offer 14 Dayreturn policy.
·       Buyer paysreturn shipping. 
·       Returns willonly be accepted with a valid RMA number.
·       All returns mustbe in original box unopened. 
·       A 20% restockingfee may apply.
·       All productsreturned are assumed to be in new and saleable condition unless the customerindicates otherwise at the time of submission. Re-boxing fees will be assessedon items received with damaged packaging. This fee may include shipping orother charges levied by the manufacturer.