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Parts for Mercury Marine Exhaust / Cooling Systems & Extension Kits Closed Cooling System (18390A12 / A13)

Engine Diagram

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#- 18390A12 CLOSED COOLING SYSTEM (1 required per assembly)
COOLING KT-CLOSED O - Replaced by -18390A13  
18390A12This part has been superseded. COOLING KT-CLOSED O - Replaced by -18390A13
(more info)
    UnavailableUnavailable Parts
COOLING KT-CLOSED O NLA 18390A13
18390A13 COOLING KT-CLOSED O NLA
(more info)
    UnavailableUnavailable Parts
#- 18390A13 CLOSED COOLING SYSTEM (1 required per assembly)
#1 55131A 5 HOUSING ASSEMBLY, Thermostat (1 required per assembly)
HOUSING ASSEMBLY 55131A 5 55131A 5
55131A 5OEM Part 55131A 5 - Housing Assembly (more info) About Mercury Marine $291.58 $291.58 Add to shopping cart
Available to order:
Usually ships
within 8 days
#- 97428T 2 COVER, Thermostat (1 required per assembly)
COVER-THERMOSTAT,NLA 97428T 2 97428T 2
97428T 2OEM Part 97428T 2 - Thermostat Cover, NLA (more info) About Mercury Marine $30.00 $30.00 Add to shopping cart
8 in stock. Explain stock levels
T-STAT HOUSING MC-29-97428 MC-29-97428
MC-29-97428OEM Match MC-29-97428 - Thermostat Housing (more info) About Barr Marine by EDM $36.00 $28.12 Add to shopping cart
1 in stock. Explain stock levels
#2 22-818390 DRAIN COCK (1 required per assembly)
DRAIN COCK 22-818390  
22-818390OEM Part 22-818390 - Plug Assembly (more info) About Mercury Marine $17.30 $14.81 Add to shopping cart
Available to order:
Usually ships
within 8 days
#3 87-86080 SWITCH, Temperature (1 required per assembly)
SWITCH Temperatur 87-86080 87-86080
87-86080OEM Part 87-86080 - Switch (more info) About Mercury Marine $82.42 $82.42 Add to shopping cart
1 in stock. Explain stock levels
#4 27-48818 1 GASKET (1 required per assembly)
GASKET Note: must be ordered in multiples of 2 27-48818  1 27-48818 1
27-48818 1OEM Part 27-48818 1 - Gasket - Priced Individually (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
4 in stock. Explain stock levels
GASKET   27 48818Q01 27-48818Q01
27-48818Q01OEM Part 27-48818Q01 - Gasket (more info) About Mercury Marine $2.50 $2.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#5 27-53045 1 GASKET (1 required per assembly)
GASKET Note: must be ordered in multiples of 5 27-53045  1 27-53045 1
27-53045 1OEM Part 27-53045 1 - Gasket - Priced Individually (more info) About Mercury Marine $3.70 $3.70 Add to shopping cart
10+ in stock. Explain stock levels
Thermostat Gasket 18-2917-9
18-2917-9OEM Match 18-2917-9 - Gasket 27-530451 2-Pack (more info) About Sierra Marine $5.98 $3.65 Add to shopping cart
10+ in stock. Explain stock levels
GASKET   27 53045Q01 27-53045Q01
27-53045Q01OEM Part 27-53045Q01 - Gasket (more info) About Mercury Marine $3.90 $3.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#6 10-48115 SCREW, (.375-16 x 3.50) (2 required per assembly)
SCREW,NLA 10-48115  
10-48115OEM Part 10-48115 - Screw, NLA (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
10+ in stock. Explain stock levels
#7 12-31263 WASHER (2 required per assembly)
WASHER Note: must be ordered in multiples of 5 12-31263  
12-31263OEM Part 12-31263 - Washer - Priced Individually (more info) About Mercury Marine $0.70 $0.70 Add to shopping cart
10+ in stock. Explain stock levels
#8 805136T RESERVOIR (1 required per assembly)
HEAT EXCHANGR 4IN O NLA  
805136T HEAT EXCHANGR 4IN O NLA
(more info)
    UnavailableUnavailable Parts
#- 22-36382 FITTING, (.250-18 x .62) Brass (1 required per assembly)
FITTING (.250-18 22-36382 22-36382
22-36382OEM Part 22-36382 - Plug (more info) About Mercury Marine $3.90 $3.90 Add to shopping cart
2 in stock. Explain stock levels
Pipe Plug 18-8111-9
18-8111-9OEM Match 18-8111-9 - Pipe Plug (PK3) (more info) About Sierra Marine $10.77 $7.50 Add to shopping cart
10+ in stock. Explain stock levels
#- 814875 COVER, Heat Exchanger End (2 required per assembly)
COVER-END         O - Replaced by -8M0036623 814875
814875This part has been superseded. COVER-END O - Replaced by -8M0036623
(more info)
    UnavailableUnavailable Parts
END CAP (4 Inch) 8M0036623  
8M0036623OEM Part 8M0036623 - Cap -end (more info) About Mercury Marine $69.92 $69.92 Add to shopping cart
Available to order:
Usually ships
within 8 days
#- 27-814876 GASKET, End Cover (2 required per assembly)
GASKET            O - Replaced by 27-803644  
27-814876This part has been superseded. GASKET O - Replaced by 27-803644
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-8M0036987  
27-803644This part has been superseded. GASKET O - Replaced by 27-8M0036987
(more info)
    UnavailableUnavailable Parts
GASKET 27-8M0036987 27-8M0036987
27-8M0036987OEM Part 27-8M0036987 - Gasket (more info) About Mercury Marine $17.20 $14.73 Add to shopping cart
2 in stock. Explain stock levels
#- 10-814877 BOLT (2 required per assembly)
BOLT 10-814877 10-814877
10-814877OEM Part 10-814877 - Bolt (more info) About Mercury Marine $8.80 $8.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#- 25-814878 O-RING, Special (2 required per assembly)
O RING            O - Replaced by 25-8M0039163  
25-814878This part has been superseded. O RING O - Replaced by 25-8M0039163
(more info)
    UnavailableUnavailable Parts
O-RING (3/8 x 1/8 25-8M0039163  
25-8M0039163OEM Part 25-8M0039163 - O-Ring (more info) About Mercury Marine $5.90 $5.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#- 36-814879 CAP (1 required per assembly)
CAP 36-814879  
36-814879OEM Part 36-814879 - Cap (more info) About Mercury Marine $45.20 $45.20 Add to shopping cart
6 in stock. Explain stock levels
#9 54-815504372 CLAMP, Worm Gear (AR required per assembly)
CLAMP Worm Gear 54-815504372 54-815504372
54-815504372OEM Part 54-815504372 - Clamp (more info) About Mercury Marine $11.30 $11.30 Add to shopping cart
8 in stock. Explain stock levels
Hose Clamp 18-7316
18-7316OEM Match 18-7316 - Hose Clamps, 72 (more info) About Sierra Marine $9.26 $7.11 Add to shopping cart
5 in stock. Explain stock levels
#10 805034A 1 BRACKET ASSEMBLY, Mounting (1 required per assembly)
BRACKET-HEAT EXCH,NLA 805034A 1  
805034A 1OEM Part 805034A 1 - Heat Exchanger Bracket, NLA (more info) About Mercury Marine $300.00 $300.00 Add to shopping cart
3 in stock. Explain stock levels
#11 18431 PAD (2 required per assembly)
PAD 18431  
18431OEM Part 18431 - Pad (more info) About Mercury Marine $24.33 $24.33 Add to shopping cart
Available to order:
Usually ships
within 8 days
#12 10-57357 SCREW, (.437-13 x 2.250) (1 required per assembly)
SCREW (.437-13 x 10-57357 10-57357
10-57357OEM Part 10-57357 - Screw (more info) About Mercury Marine $2.60 $2.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#14 41024 MOUNT (1 required per assembly)
MOUNT 41024 41024
41024OEM Part 41024 - Mount (more info) About Mercury Marine $36.83 $24.75 Add to shopping cart
2 in stock. Explain stock levels
#15 23-74756 SPACER (1 required per assembly)
SPACER,NLA 23-74756 23-74756
23-74756OEM Part 23-74756 - Spacer, NLA (more info) About Mercury Marine $12.50 $12.50 Add to shopping cart
10+ in stock. Explain stock levels
#16 22-45084 FITTING, Straight (2 required per assembly)
22866725 22-45084  
22-45084OEM Part 22-45084 - Connector (more info) About Mercury Marine $25.54 $25.54 Add to shopping cart
6 in stock. Explain stock levels
FITTING Straight 22-866725  
22-866725OEM Part 22-866725 - Steering Fitting 3/4 NPT (more info) About Mercury Marine $12.90 $12.90 Add to shopping cart
3 in stock. Explain stock levels
Brass Connector 18-4461
18-4461OEM Match 18-4461 - Brass Connector (more info) About Sierra Marine $15.63 $12.38 Add to shopping cart
1 in stock. Explain stock levels
#17 54-815504220 CLAMP, Worm Gear (AR required per assembly)
CLAMP Worm Gear 54-815504220 54-815504220
54-815504220OEM Part 54-815504220 - Clamp (more info) About Mercury Marine $5.40 $5.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#19 71587A10 RECOVERY KIT, Coolant (Component parts can be purchased locally.) (1 required per assembly)
RECOVERY KIT Cool 71587A10  
71587A10OEM Part 71587A10 - ReCovery Kit (more info) About Mercury Marine $64.92 $64.92 Add to shopping cart
2 in stock. Explain stock levels
#20 71587A11 BOTTLE, Plastic (1 required per assembly)
BOTTLE Plastic 71587A11 71587A11
71587A11OEM Part 71587A11 - Bottle Assembly (more info) About Mercury Marine $52.42 $52.42 Add to shopping cart
Available to order:
Usually ships
within 8 days
#21 72058 CAP (1 required per assembly)
CAP 72058 72058
72058OEM Part 72058 - Cap (more info) About Mercury Marine $7.30 $7.30 Add to shopping cart
2 in stock. Explain stock levels
#22 32-805055 HOSE (1 required per assembly)
HOSE              O NLA  
32-805055 HOSE O NLA
(more info)
    UnavailableUnavailable Parts
#22 32-805175 HOSE (1 required per assembly)
HOSE,NLA 32-805175  
32-805175OEM Part 32-805175 - Hose, NLA (more info) About Mercury Marine $25.00 $25.00 Add to shopping cart
10+ in stock. Explain stock levels
#23 32-805138 HOSE, Water Pump To Heat Exchanger (1 required per assembly)
HOSE 32-805138 32-805138
32-805138OEM Part 32-805138 - Molded Hose (more info) About Mercury Marine $41.92 $41.92 Add to shopping cart
Available to order:
Usually ships
within 8 days
#24 54-815504232 CLAMP, Worm Gear (2.50 Diameter) (AR required per assembly)
CLAMP Worm Gear ( 54-815504232 54-815504232
54-815504232OEM Part 54-815504232 - Clamp (more info) About Mercury Marine $6.20 $4.19 Add to shopping cart
10+ in stock. Explain stock levels
#25 22-36305 ELBOW, (90 Degrees) (2 required per assembly)
ELBOW             O - Replaced by 22-36305T  
22-36305This part has been superseded. ELBOW O - Replaced by 22-36305T
(more info)
    UnavailableUnavailable Parts
ELBOW 22-36305T 22-36305T
22-36305TOEM Part 22-36305T - Elbow (more info) About Mercury Marine $31.70 $27.14 Add to shopping cart
Available to order:
Usually ships
within 8 days
Fitting, Brass 18-8216
18-8216OEM Match 18-8216 - Brass Fitting, 22-36305 (more info) About Sierra Marine $25.54 $19.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#26 32-91954 2 HOSE (1 required per assembly)
HOSE,NLA 32-91954  2 32-91954  2
32-91954 2OEM Part 32-91954 2 - Hose, NLA (more info) About Mercury Marine $40.00 $40.00 Add to shopping cart
2 in stock. Explain stock levels
#28 32-814860 HOSE (Oil Cooler to Oil Cooler) (1 required per assembly)
HOSE,NLA 32-814860  
32-814860OEM Part 32-814860 - Hose, NLA (more info) About Mercury Marine $25.00 $25.00 Add to shopping cart
10+ in stock. Explain stock levels
#29 32-805105 HOSE (Reservoir to Exhaust Manifold) (1 required per assembly) (V Drive without Risers)
HOSE              O - Replaced by 32-897190  
32-805105This part has been superseded. HOSE O - Replaced by 32-897190
(more info)
    UnavailableUnavailable Parts
HOSE 32-897190  
32-897190OEM Part 32-897190 - Hose (more info) About Mercury Marine $39.33 $39.33 Add to shopping cart
Available to order:
Usually ships
within 8 days
#29 32-805302 HOSE (Reservoir to Exhaust Manifold) (1 required per assembly) (Non V Drive without Risers)
HOSE              O NLA  
32-805302 HOSE O NLA
(more info)
    UnavailableUnavailable Parts
#30 32-805303 HOSE (Reservoir to Exhaust Manifold) (1 required per assembly) (Non V Drive without Risers)
HOSE              O NLA  
32-805303 HOSE O NLA
(more info)
    UnavailableUnavailable Parts
#30 32-805022 HOSE (Reservoir to Exhaust Manifold) (1 required per assembly) (With Risers)
HOSE,NLA 32-805022 32-805022
32-805022OEM Part 32-805022 - Hose, NLA (more info) About Mercury Marine $30.00 $30.00 Add to shopping cart
10 in stock. Explain stock levels
#31 805174T COOLER, Oil (1 required per assembly)
COOLER-OIL,NLA 805174T 805174T
805174TOEM Part 805174T - Oil Cooler, NLA (more info) About Mercury Marine $500.00 $500.00 Add to shopping cart
1 in stock. Explain stock levels
#32 54-814858 CLIP (2 required per assembly)
CLIP 54-814858  
54-814858OEM Part 54-814858 - Clip (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
10+ in stock. Explain stock levels
#33 19-805727 CAP, Rubber (2 required per assembly)
19805727001 19-805727  
19-805727OEM Part 19-805727 - CAP (more info) About Mercury Marine $3.00 $3.00 Add to shopping cart
3 in stock. Explain stock levels
CAP 19-805727001  
19-805727001OEM Part 19-805727001 - Cap (more info) About Mercury Marine $3.30 $3.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
#34 27-818832 GASKET (4 required per assembly)
GASKET            O - Replaced by 27-860232 27-818832
27-818832This part has been superseded. GASKET O - Replaced by 27-860232
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-863726 27-860232
27-860232This part has been superseded. GASKET O - Replaced by 27-863726
(more info)
    UnavailableUnavailable Parts
GASKET 27-863726 27-863726
27-863726OEM Part 27-863726 - Gasket (more info) About Mercury Marine $12.50 $12.50 Add to shopping cart
10+ in stock. Explain stock levels
Exhaust Elbow Gasket 18-2849-1
18-2849-1 18-28491 - Exhaust Elbow Gasket MP#283109 - Special Order - No Returns (more info)     UnavailableUnavailable Parts
GASKET-EXHAUST ELBOW MC47-27-87105 MC47-27-87105
MC47-27-87105OEM Match MC47-27-87105 - Exhaust Elbow Gasket (more info) About Barr Marine by EDM $8.00 $6.25 Add to shopping cart
Available to order:
Usually ships
within 8 days
#35 27-41811 GASKET (2 required per assembly)
GASKET            O - Replaced by 27-860231  
27-41811This part has been superseded. GASKET O - Replaced by 27-860231
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-863725 27-860231
27-860231This part has been superseded. GASKET O - Replaced by 27-863725
(more info)
    UnavailableUnavailable Parts
GASKET            * - Replaced by 27-863725  1 27-863725
27-863725This part has been superseded. GASKET * - Replaced by 27-863725 1
(more info)
    UnavailableUnavailable Parts
GASKET 27-863725  1 27-863725  1
27-863725 1OEM Part 27-863725 1 - Gasket (more info) About Mercury Marine $14.00 $14.00 Add to shopping cart
4 in stock. Explain stock levels
Elbow Gasket 18-0672-9
18-0672-9OEM Match 18-0672-9 - Gasket 27-41811 2-Pack (more info) About Sierra Marine $23.98 $19.50 Add to shopping cart
3 in stock. Explain stock levels
SS PLATE,BLOCK OFF MC-20-87918 MC-20-87918
MC-20-87918OEM Match MC-20-87918 - Block Off Plate, SS (more info) About Barr Marine by EDM $14.00 $10.93 Add to shopping cart
4 in stock. Explain stock levels
#- 22-805563 CONNECTOR, (.500 Inch NPTF To .500 Inch Inverted Flare) (2 required per assembly)
CONNECTOR (.500 I 22-805563  
22-805563OEM Part 22-805563 - Fitting (more info) About Mercury Marine $12.70 $12.70 Add to shopping cart
Available to order:
Usually ships
within 8 days
#- 44443A 3 INSTALLATION KIT (1 required per assembly)
INSTALLATION KIT,NLA 44443A 3 44443A 3
44443A 3OEM Part 44443A 3 - Installation Kit, NLA (more info) About Mercury Marine $170.00 $170.00 Add to shopping cart
3 in stock. Explain stock levels