AJ-5013 Heater Core for Thomas Underseat heater 84,000 BTU(0)No Reviews yet $226.47 Quantity discounts available QuantityPrice SKU: AJ-5013 In Stock Available: 4 Quantity -+ Add to Cart Details Underseat heater core for Thomas, 2-fan, 1988+, (8566-0377).84,000 BTU.Details Back DetailsUnderseat heater core for Thomas, 2-fan, 1988+, (8566-0377).84,000 BTU. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review