Amazon Secure Payment System Continue shopping “Johnson Pumps of America 28552 Marine Pump Cartridge for 500 GPH Motor” has been added to your cart. Product Price Quantity Subtotal × Sierra International Trolling Motor Socket Motor Side 12V WH10530-1 Trolling Motor Socket Motor Side 12V $16.39 Sierra International Trolling Motor Socket Motor Side 12V WH10530-1 Trolling Motor Socket Motor Side 12V quantity $16.39 × Johnson Pumps of America 28552 Marine Pump Cartridge for 500 GPH Motor $21.61 Johnson Pumps of America 28552 Marine Pump Cartridge for 500 GPH Motor quantity $21.61 Coupon: Apply coupon Update cart Cart totals Subtotal $38.00 Total $38.00 Proceed to checkout