One of the key components of the production inventory system and the demand for the products is reliability. While credit facilities are also a well-liked business tactic, items that are more flawless and reliable during the production process generate more demand for the product. A production inventory model has been developed that integrates a partial credit facility with the impact of reliability on the production system. In this model, the deterioration rate is assumed to be constant, and customer demand is dependent on the product's price.