Part Description: #1~75-85 Mercury Mariner 40hp to 150Hp Main Bearing Reed Valve Set 5266A4,13540-8662 Part Number(s): 5266A4,13 540-8662,65312A1 Donor Motor: 1975 Mercury mariner 150 Hp Serial# 425511 Clean Fresh Water Motor Fits Model(s): 1975-1985 Mercury Mariner 40Hp thru 150Hp Condition Description: Used, in Good Condition. All Reed Valves in Great Condition. The Land/Groves are in Great Shape. Please look at all pictures for exact item and condition. Part Details:Main Bearing Reed Valve Set Listing ID: KT19 This should fit (This is only a Partial): Mercury Mercury Mariner Outboard Parts by HP Liter 140HP 7112773 THRU 7132512 CAN - MERC 140 Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 140HP 5443030 AND UP USA - 140 HORSEPOWER Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 150HP 4868648 THRU 5327662 USA - 1500XS Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 140HP 7132513 THRU 7150412 CAN - MERC 140 Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 150HP 7010533 THRU 7112772 CAN - MERC 1500 Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 140HP 5327663 THRU 5625107 USA - MERC 140 Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 150HP 3502806 THRU 4865677 USA - MERC 1500 Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 140HP 7150413 AND UP CAN - MERC 140 Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 140HP 4865678 THRU 5327662 USA - MERC 140 Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 150HP 8005615 THRU 8052649 AUS - MERC 1500 Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 140HP 5088444 THRU 5443029 USA - 140 HORSEPOWER Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 140HP 8066065 AND UP AUS - MERC 140 Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 140HP 5625108 AND UP USA - MERC 140 Crankshaft, Pistons, And Connecting Rods Mercury Mercury Mariner Outboard Parts by HP Liter 140HP 8052650 THRU 8052879 AUS - MERC 140 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1977 1150627 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1985 1150525 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1977 1150527 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1976 1150526 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1978 1140528 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mariner Outboard 1978 7140528 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1976 1150506 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mariner Outboard 1979 7140629 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1980 1140520 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1978 1140628 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1980 1140620 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1976 1150626 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1985 1150625 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1977 1150507 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1977 1150537 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1975 1150505 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1978 1150538 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1979 1140529 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mercury Outboard 1979 1140629 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mariner Outboard 1978 7140628 Crankshaft, Pistons, And Connecting Rods Mercury Outboard Parts by Year (Mercury, Mariner, Mark, Force, Chrysler, Sears, SportJet) Mariner Outboard 1979 7140529 Crankshaft, Pistons, And Connecting Rods Taxes: MS residents will be charged 7% sales tax. Shipping: We normally ship the day after your payment is received and cleared. If you purchase multiple items, then please allow us to send an invoice to send you a little on shipping. Unless otherwise stated, products will be shipped via FedEx or USPS. Contact seller for any items being shipped anywhere other than the lower 48 states for a shipping price quote. Additional shipping charges will apply to all places outside of the lower 48. Arrangements can be made to pick up item locally. Returns: Returns are allowed only if the item is defective or if we made a mistake in the listing. Returns are allowed for 14 days only (used items) or 30 days (new items). Buyer is responsible for all return shipping costs and for ensuring proper packaging. Buyer must contact us via email before returning any item and obtain an RMA (Return Merchandise Authorization) number. Buyer is responsible for doing his own research to ensure purchase of the correct part. Returns are not allowed due to purchase of incorrect part or change of mind. All returns are subject to a 15% restocking fee unless the item was defective or we made a mistake in the listing. All returned parts found to be tampered with/modified/damaged or incomplete will not be refunded. Payments: Payment is expected within 7 days of purchase. After that, the item will be relisted for sale.