Applicable Model: This fuel cap primer bulb kit is compatible with Fuxtec FX RM1855, Fuxtec FX RM1860, Fuxtec FX RM2055, Fuxtec FX RM2060, Fuxtec FX RM2060PRO, and Fuxtec FX RM1630. Suitable for 95% of mowers listed with T375, T475, and T575 engines. Not suitable for T675 engines. Highly Matching: Designed to precisely fit original equipment, this replacement fuel cap primer bulb kit ensures reliable performance with high-quality materials and craftsmanship. Durable ABS: Constructed from durable ABS material with excellent workmanship, this kit resists damage and provides long-lasting use. Fine Craftsmanship: Engineered with precision and professional manufacturing standards to ensure optimal functionality and improved lawn mower performance. 2 Sets Included: Kit includes two fuel caps and two primer bulbs, providing convenient replacements for repair and maintenance needs.