Shandong Rongli Petroleum Machinery Co.,Ltd is a direct manufacturer of Triplex drilling mud pump and their spare parts. we produce all the spare parts for F series drilling mud pump&3NB series drilling mud pump. The main spare parts include: crankshaft, pinion shaft, connection rod, eccentricwheel,pulley,ring gear,bearings,crosshead,liner,cylinder,module,valve,crosshead,crosshead pin,guiding plate,slide plate,etc whcih compose the mud pump. If you are interested,please contact me for more information. we welcome you to our company for a visit and business negotiation.