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    Thermostats and Housing

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    2.5L - 3.0L Mercruiser Thermostat Kit 140 Degree 1975-1978 / 1982-1997 Replaces 9078T3

    4-3650
    $25.07
    Thermostat Kit 140 Deg. for 1975-78/1982-97 MerCruiser 2.5-3.0L 4-cyl, 120-140 Hp | 4.3-4.5L V6 185-200 Hp GM & MIE engines.

    3.0L/181ci Raw Water Cooled Thermostat 140 Degree 18-3550

    515300
    $27.98
    Sierra 18-3550 Thermostat for Mercury/Mercruiser Inboard/Outboard Marine Engines. Temperature Rating: 140 Degrees. Fits Mercruiser 120/2.5L (s/n 2324347 & up) w/ cast iron exhaust manifolds. Fits Mercruiser 140-3.0L (s/n 0L340999 & below) and 165. Replaces Marine Power 0214-002.

    6.0L - 6.2L LS3 & LSA Thermostat 165 Degree

    515621
    $39.93
    165 degree thermostat used in Marine Power 6.0L, 6.2L LS3 and LSA engines.

    6.0L Integrated Housing Thermostat 160 Degree 379-160

    515600
    $75.00
    Includes Outlet.

    8.1L Thermostat 160 Degree for Rear Mount FWC 200-160

    515422
    $15.98
    160 degree thermostat used on fresh water cooled engines with rear mounted heat exchangers. Fits 4.3 V-6 thru 8.2L V-8 Engines.

    Thermostat 160 Degree 2034-160

    515411
    $11.35
    160 degree thermostat. Replaces: Marine Power 515411.

    Johnson/Evinrude 1986-1988 60-75 HP Thermostat Kit Replaces 13450

    4-3669
    $29.74
    Johnson/Evinrude Thermostat Kit for 1986-1988 Johnson/Evinrude 3-cyl, 60-75 Hp outboard engines. Replaces BRP GLM Kit 13450. Sierra 18-3669, GLM 13450.

    Johnson/Evinrude 1990-95 143 Degree Thermostat Replaces 434137

    4-3500
    $25.61
    Thermostat 143 Deg. for 1990-95 BRP 3-cyl, 60-75 Hp looper outboards. Replaces BRP 434137, Sierra 18-3500, and GLM 13170.

    Johnson/Evinrude SS Dual Thermostat Kit Replaces 5005440

    4-3673
    $46.91
    SS Dual Thermostat Kit for BRP V4, 90-140 crossflow outboards. Replaces BRP 5005440 and Sierra 18-3673.

    Mercruiser 120 Degree Thermostat Replaces 14586

    4-3549
    $25.43
    120 Deg. Thermostat for Mercury Mariner 2-cyl, 6-40 Hp | 3-cyl, 50-75 Hp | 4-cyl, 40-125 Hp | V6, 225 Hp outboards. Replaces Mercury 14586 and Sierra 18-3549.

    Mercruiser 140 Degree Thermostat Kit Replaces 807252Q4

    4-3668
    $25.29
    Thermostat Kit 140 Deg. for MerCruiser V6 & V8 non-high performance GM engines with standard cooling. Replaces Mercury 807252Q4, 807252T7, and Sierra 18-3668.

    Mercruiser 140 Degree Thermostat Replaces 59078

    4-3550
    $25.39
    Thermostat 140 Deg. for MerCruiser 2.5-3.0L, 4-cyl, 120-140 Hp | 4.1L, 6-cyl 165 Hp GM & MIE engines. Replaces Mercruiser 59078, Sierra 18-3550, and Barr MC-29-59078.

    Mercruiser 142 Degree Thermostat Kit Replaces 807252Q3

    4-3646
    $25.30
    142 Deg. Thermostat Kit for MerCruiser V8 high performance Ford & GM engines with closed-cooling. Replaces Mercury 807252Q3, 807252T6 and Sierra 18-3646.

    Mercruiser 143 Degree Thermostat Replaces 47594

    4-3557
    $25.67
    Thermostat 143 Deg. for MerCruiser 4.1-4.8L, 6-cyl 160-292 Hp GM & MIE engines. Replaces Mercury 47594, and Sierra 18-3557.

    Mercruiser 1976-1997 1/8″ Temp Sender Replaces 12415

    4-5896
    $26.30
    For 1976-97 Universal fit for water temperatures up to 200°F. 1/8″, 54-78 Ohms. Replaces: Mercury 12415 and Sierra 18-5896.

    Mercruiser Brass Inverted Thermostat Replaces 75692

    4-3553
    $25.59
    Brass Inverted Thermostat for Mercury Mariner 2-cyl, 7.5-40 Hp | 3-cyl, 70-90 Hp | 4-cyl, 100-115 Hp | V6, 135-300 Hp outboards. Replaces Mercury 75692, F660468, 66850, 75692B, 62981, and Sierra 18-3553.

    Mercruiser Thermostat Kit Replaces 75692

    4-3672
    $25.94
    Thermostat Kit for Mercury Mariner 2-cyl, 9.8-40 Hp | -cyl, 50-65 Hp | 4-cyl, 100-140 Hp outboards. Replaces: Mercury 75692, 62386001, and OMC 5005440, 0310058.

    Mercury 1983 & later 160 Degree Thermostat Kit Replaces 807252Q5

    4-3647
    $26.51
    Thermostat Kit 160 Deg. for 1983 & late MerCruiser GM engines with standard cooling. Replaces Mercury 807252Q5, 807252T5, and Sierra 18-3647.

    Mercury 1994-2005 143 Degree Thermostat Replaces 833072003

    4-3536
    $28.55
    Thermostat 143 Deg. for 1994-2005 Mercury Mariner 4-cyl, 115-135 Hp | V6, 150-300 Hp outboards. Replaces Mercury 833072003 and Sierra 18-3536.

    Mercury 2000-2014 130 Degree Thermostat Replaces 8M0057307

    4-3535
    $57.13
    Thermostat 130 Deg. for 2000-2014 Mercury Mariner V6, 200-300 Hp outboards. Replaces Mercury 8M0057307, 885599004, 885599003, 8855991, and Sierra 18-3535.

    OMC 1/2″ Temp Sender Replaces 171960

    4-5898
    $25.49
    1/2″ Temp Sender for OMC 4-cyl, 120-140 Hp | V6, 150-165 Hp | V8, 170-225 Hp GM engines. Replaces: OMC 171960, Sierra 18-5898, and Indmar S645001.

    Sierra 130 Degree Thermostat Kit 18-3672

    18-3672
    $26.59
    Sierra Thermostat Kit 18-3672. Includes 18-3553 Thermostat and 18-0182 Thermostat Gasket.

    Sierra 142 Degree Thermostat 18-3551 Replaces 807252T1, 59137

    18-3551
    $25.58
    Sierra Thermostat Kit 18-3551. For 351 CID Engines. Used on all V-8 Chrysler engines w/Rochester carburetors 1986 - present. For : Raw water cooled engines, Temperature Rating: 142°F. Height : 1.5. O.D. : 2.125.

    Sierra 143 Degree Thermostat 18-3543 Replaces 5005440

    18-3543
    $26.50
    Sierra Thermostat 18-3543 . Fits: 40-250hp E-tech, 6-55hp, Cross V4 & V6, 9.9 4-Stroke (1994-01), 15 4-Stroke (1994-01).

    Sierra 143 Degree Thermostat Kit 18-3673

    18-3673
    $42.99
    Sierra Thermostat Kit 18-3673. V-4 Crossflow. Contains: 18-0675 Thermostat Gasket, 18-0977 Thermostat Gasket, 18-2391 Grommet, 18-3564 Poppet Relief Valve, 18-1243 Valve Springs, 18-3543 Thermostat.

    Sierra 160 Degree Thermostat Kit 18-3647 Replaces 807252Q5

    18-3647
    $34.69
    Sierra Thermostat Kit 18-3647. Replaces: Mercrusier 807252Q5.

    Sierra 160 Degree Thermostat Kit 18-3677 Replaces 3856961

    18-3677
    $28.09
    Sierra Thermostat Kit 18-3677. Replaces: OMC 3856961. Contains: 18-7170 O-Ring, 18-0398 Thermostat Gasket.

    4.3L - 5.7L Raw Water Cooling Thermostat Housing

    542034
    $51.38
    Thermostat Housing used on Marine Power 4.3L - 5.7L Raw Water Cooling systems. Piece comes as raw metal with no paint or primer. Replaces: Mercruiser 860256A4. Does not have provisions for temp sensors. For kit see Part Number 542046.

    4.3L - 5.7L Raw Water Cooling Thermostat Housing Kit

    542046
    $149.00
    Housing Kit includes Thermostat Spacer 4.3L/262ci to 8.2/502ci Raw Water Cooled (515645), Thermostat Housing (4.3L - 5.7L Raw Water Cooling System (542034), Gasket 4.3L / 5.7L / 7.4L Thermostat to Engine (280153), Brass Pipe Plugs x2.

    3.0L/181ci Thermostat Housing Kit Replaces 861493A3

    541955
    $42.77
    Thermostat housing. Fits: 3.0L GM 181 L/4 (1999-Up). Direct replacement thermostat housing fits Mercruiser 120, 140, 120R, 140R, 160, 165 & 200 model 4 & inline 6 cylinder marine engines. Replaces: Mercruiser 861493A3, Marine Power 0214-000, and Barr Marine MC-29-47587.

    4.3L - 8.2L Thermostat Housing

    540662
    $97.98

    5.7L Fresh Water Cooling Thermostat Housing 63420

    540750
    $124.70
    Thermostat Housing used on Marine Power 5.7L Fresh Water Cooling systems. This housing is used in conjunction with Marine Power Number 511035 (Heat Exchanger). Includes Gaskets, Bolts And Washers, and Standard Size Radiator Cap Filler Neck. Outlet Angle - 180 Degree.

    5.7L Fresh Water Cooling Thermostat Housing Neck 63465

    541563
    $49.95
    Thermostat Housing Neck used on Marine Power 5.7L Fresh Water Cooling systems. This housing is used in conjunction with Marine Power Part Number 511035 (heat exchanger). This neck flange accepts a standard radiator cap.

    Thermostat Housing TK Mount

    540698
    $35.80

    4.3L/262ci - 8.2/502ci Raw Water Cooled Thermostat Spacer 5042-001

    515645
    $7.49
    Thermostat spacer sleeve. Used with Marine Power Part Number 542034 (Thermostat Housing).

    3.0L Mercruiser Lower Thermostat Gasket MC47-27-33680

    280141
    $3.75
    Replaces Mercury 27-8146801, OMC 311069, Marine Power 0214-004, and Volvo Penta 3852096.

    4.3L / 5.7L / 7.4L Thermostat to Engine Gasket GM 10105135

    280153
    $5.95
    AC Delco Part Number 10105135. Replaces Marine Power 0303-009.

    GM 8.1L Thermostat Gasket

    286143
    $12.98
    8.1L crossover gasket for Marine Power engines.

    Raw Water Thermostat Housing Gasket

    0212-002
    $1.95
    Replaces: Mercruiser 27-47510 and Mallory 9-60005.

    8.1L Thermostat Seal

    280809
    $5.10

    3.0L/181ci Circulating Water Pump to Thermostat Housing Hose Replaces 32-96879

    274009
    $37.99
    Molded hose for 3.0L thermostat housing to water pump. Replaces: Mercruiser 32-96879, Sierra 18-70931, and Marine Power 1453-000.

    4.3L - 8.2L Seawater Pump to Thermostat Housing/Heat Exchanger Hose

    273401
    $29.35
    Some modification required for heat exchanger fitting.

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