
The Story
Replace your faulty water pump in your 99-00 6.5L GM Diesel with this quality replacement from Alliant. Alliant products are built to meet or exceed factory specifications. Replaces factory part #: 12556231 / 88894035 / 251-603 / 252-776.
IMPORTANT FITMENT NOTE: Feild data indicates that both the AP63560 & AP63561 were used on 1999 vehicles. Be sure to verify what water pump is in place in your vehicle.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Replace your faulty water pump in your 99-00 6.5L GM Diesel with this quality replacement from Alliant. Alliant products are built to meet or exceed factory specifications. Replaces factory part #: 12556231 / 88894035 / 251-603 / 252-776.
IMPORTANT FITMENT NOTE: Feild data indicates that both the AP63560 & AP63561 were used on 1999 vehicles. Be sure to verify what water pump is in place in your vehicle.




















