This study aims to determine the effect of
service quality, promotion on the decision to purchase
credit for devotion (kgb) by pnsdki and its impact on the
loyalty of pnsdki customers in rawamangun branches.
This study uses a quantitative method and the sample is
189. The customers are civil servants credit for the
service of Rawamangun branch. by using the
convenience sampling method and the data obtained
were analyzed using the SEM-LISREL application.The
results of this study indicate that the t test has a
significant effect between service quality on purchasing
decisions, promotions on purchasing decisions,
purchasing decisions on customer loyalty, service quality
on customer loyalty, promotions on customer loyalty
Keywords : Service Quality, Promotion, Purchasing Decisions, Customer Loyalty.