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Parts for MerCruiser Race Engine and Drive 420 GM 454 V-8 1987-1989 Thermostat Housing (420)

#1 87290A 4 HOUSING ASSEMBLY, Thermostat (1 required per assembly) SN# 0A398941 THRU 0C576119
HOUSING ASSEMBLY 87290A 4
87290A 4

About Mercury Marine

OEM Part

87290A 4 - Housing Assembly [ More info ]

Add to shopping cart $418.42
1 in stock. Explain stock levels

THERMOSTAT HOUSING
18-1994

About Sierra Marine

OEM Match

18-1994 - Thermostat Housing [ More info ]

Add to shopping cart $199.99 $161.21
7 in stock. Explain stock levels

THERMOSTAT HOUSING,STAINLESS
18-1989

About Sierra Marine

OEM Match

18-1989 - Thermostat Housing, Stainless Steel [ More info ]

Add to shopping cart $274.99 $212.94
In stock Explain stock levels

T-STAT HOUSING MC-29-87290
MC-29-87290

About Barr Marine by EDM

OEM Match

MC-29-87290 - Thermostat Housing [ More info ]

Add to shopping cart $175.00 $136.67
1 in stock. Explain stock levels

#1 90736A18 HOUSING ASSEMBLY, Thermostat (1 required per assembly) SN# 0C576120 & Up
HOUSING ASSEMBLY 90736A18
90736A18

About Mercury Marine

OEM Part

90736A18 - Thermostat Housing Assembly [ More info ]

Add to shopping cart $325.00
Available to order: Usually ships within 8 days. Explain stock levels

T-STAT HOUSING MC-29-90736
MC-29-90736

About Barr Marine by EDM

OEM Match

MC-29-90736 - Thermostat Housing [ More info ]

Add to shopping cart $175.00 $136.67
Available to order: Usually ships within 8 days. Explain stock levels

#2 23-47511 SLEEVE, Thermostat Housing (1 required per assembly)
SLEEVE 23-47511
23-47511

About Mercury Marine

OEM Part

23-47511 - Sleeve [ More info ]

Add to shopping cart $31.66
7 in stock. Explain stock levels

#3 22-32803 PLUG, Pipe (.375-18) Brass (2 required per assembly)
PLUG Pipe (.375-18) Bra 22-32803
22-32803

About Mercury Marine

OEM Part

22-32803 - Plug [ More info ]

Add to shopping cart $4.80
3 in stock. Explain stock levels

Pipe Plug, 3/8-18 Npt Pipe
18-4264

About Sierra Marine

OEM Match

18-4264 - Pipe Plug, 3/8-18 NPT Pi [ More info ]

Add to shopping cart $3.99 $3.41
Available to order: Usually ships within 8 days. Explain stock levels

#4 27-53045 1 GASKET, Thermostat Housing (1 required per assembly)
GASKET Note: must be ordered in multiples of 5 27-53045  1
27-53045  1

About Mercury Marine

OEM Part

27-53045 1 - Gasket - Priced Individually [ More info ]

Add to shopping cart $3.80
10+ in stock. Explain stock levels

Thermostat Gasket
18-2917

About Sierra Marine

OEM Match

18-2917-9 - Gasket 27-530451 2-Pack [ More info ]

Add to shopping cart $5.98 $3.65
10 in stock. Explain stock levels

GASKET   27 53045Q01
27 53045Q01

About Mercury Marine

OEM Part

27-53045Q01 - Gasket [ More info ]

Add to shopping cart $4.00
Available to order: Usually ships within 8 days. Explain stock levels

#5 805273 1 THERMOSTAT, 140 Degrees (1 required per assembly)
THERMOSTAT (140 D O - Replaced by -807252  1
 

This part has been superseded.

805273 1 - THERMOSTAT (140 D O [ More info ]
Unavailable
Replaced by -807252 1
THERMOSTAT        O - Replaced by -807252T 1
807252  1

This part has been superseded.

807252 1 - THERMOSTAT O [ More info ]
Unavailable
Replaced by -807252T 1
THERMOSTAT 60 Deg O - Replaced by -8M0089715
807252T 1

This part has been superseded.

807252T 1 - THERMOSTAT 60 Deg O [ More info ]
Unavailable
Replaced by -8M0089715
THERMOSTAT 60 Degree C 8M0089715
8M0089715

About Mercury Marine

OEM Part

8M0089715 - Thermostat-140 [ More info ]

Add to shopping cart $19.17
Available to order: Usually ships within 8 days. Explain stock levels

THERMOSTAT KIT     807252Q 4
807252Q 4

About Mercury Marine

OEM Part

807252Q 4 - Thermostat Kit [ More info ]

Add to shopping cart $41.83
Available to order: Usually ships within 8 days. Explain stock levels

Thermostat (140)
18-3551

About Sierra Marine

OEM Match

18-3551 - Thermostat 807252T1, 59137 [ More info ]

Add to shopping cart $14.99 $11.08
10+ in stock. Explain stock levels

#6 27-47510 GASKET, Thermostat (1 required per assembly)
GASKET Note: must be ordered in multiples of 2 27-47510
27-47510

About Mercury Marine

OEM Part

27-47510 - Gasket - Priced Individually [ More info ]

Add to shopping cart $2.50
Available to order: Usually ships within 8 days. Explain stock levels

Gasket
18-2553

About Sierra Marine

OEM Match

18-2553-9 - Gasket 27-47510 2-Pack [ More info ]

Add to shopping cart $4.98 $3.01
3 in stock. Explain stock levels

#7 23-47508 SLEEVE (1 required per assembly)
SLEEVE            O - Replaced by 23-47508T
 

This part has been superseded.

23-47508 - SLEEVE O [ More info ]
Unavailable
Replaced by 23-47508T
SLEEVE 23-47508T
23-47508T

About Mercury Marine

OEM Part

23-47508T - Thermostat Sleeve [ More info ]

Add to shopping cart $13.08
10 in stock. Explain stock levels

#8 27-48818 1 GASKET, Thermostat Cover (1 required per assembly)
GASKET Note: must be ordered in multiples of 2 27-48818  1
27-48818  1

About Mercury Marine

OEM Part

27-48818 1 - Gasket - Priced Individually [ More info ]

Add to shopping cart $2.10
8 in stock. Explain stock levels

GASKET   27 48818Q01
27 48818Q01

About Mercury Marine

OEM Part

27-48818Q01 - Gasket [ More info ]

Add to shopping cart $2.60
Available to order: Usually ships within 8 days. Explain stock levels

#9 47441A 1 COVER, Thermostat (1 required per assembly) SN# 0A398941 THRU 0C576119
COVER NEW TAKE-OFFS 47441A 1
47441A 1

About Mercury Marine

OEM Part

47441A 1 - Thermostat Cover [ More info ]

Add to shopping cart $73.91
In stock Explain stock levels

Housing, Thermostat
18-1977-1

About Sierra Marine

OEM Match

18-1977-1 - Thermostat Housing [ More info ]

Add to shopping cart $64.99 $48.64
5 in stock. Explain stock levels

T-STAT HOUSING MC-29-47441
MC-29-47441

About Barr Marine by EDM

OEM Match

MC-29-47441 - Thermostat Housing [ More info ]

Add to shopping cart $36.00 $28.12
1 in stock. Explain stock levels

#9 47442A 1 COVER, Thermostat (1 required per assembly) SN# 0C576120 & Up
8M0061068 NEW TAKE-OFFS 47442A 1
47442A 1

About Mercury Marine

OEM Part

47442A 1 - Thermostat Cover [ More info ]

Add to shopping cart $35.00
1 in stock. Explain stock levels

THERM COVER HSG 8M0061068
 

About Mercury Marine

OEM Part

8M0061068 - THERM Cover Housing [ More info ]

Add to shopping cart $85.00
Available to order: Usually ships within 8 days. Explain stock levels

T-STAT HOUSING MC-29-47442
MC-29-47442

About Barr Marine by EDM

OEM Match

MC-29-47442 - Thermostat Housing [ More info ]

Add to shopping cart $36.00 $28.12
2 in stock. Explain stock levels

#10 10-60410 SCREW, (.375-16 x 4.250) (2 required per assembly)
SCREW (.375-16 x 4.250) 10-60410
10-60410

About Mercury Marine

OEM Part

10-60410 - Screw [ More info ]

Add to shopping cart $4.20
Available to order: Usually ships within 8 days. Explain stock levels

#11 12-20553 WASHER, (.406 x .734 x .063) (2 required per assembly)
WASHER (.406 x .734 x . 12-20553
 

About Mercury Marine

OEM Part

12-20553 - Washer - Priced Individually [ More info ]

Add to shopping cart $1.10
Available to order: Usually ships within 8 days. Explain stock levels

#12 22-33198A 1 PLUG, (3/4-14), Pipe (1 required per assembly)
2241622 22-33198A 1
 

About Mercury Marine

OEM Part

22-33198A 1 - Plug [ More info ]

Add to shopping cart $2.50
10+ in stock. Explain stock levels

PLUG (.750-14) Pipe 22-41622
22-41622

About Mercury Marine

OEM Part

22-41622 - Pipe Plug [ More info ]

Add to shopping cart $7.60
10+ in stock. Explain stock levels

Plug, 3/4: Blacksteel
18-4258

About Sierra Marine

OEM Match

18-4258 - Plug, 3/4: Blacksteel [ More info ]

Add to shopping cart $4.99 $3.56
10+ in stock. Explain stock levels

#12A 22-98477A 2 VALVE ASSEMBLY (1 required per assembly)
VALVE ASSEMBLY 22-98477A 2
22-98477A 2

About Mercury Marine

OEM Part

22-98477A 2 - Valve Assembly [ More info ]

Add to shopping cart $78.67
In stock Explain stock levels

#12B 32-33220 70 HOSE, (48.00 Inches Bulk), Cut As Required (2 required per assembly)
HOSE (48.00 Inche O - Replaced by 32-8M0062614
32-33220 70

This part has been superseded.

32-33220 70 - HOSE (48.00 Inche O [ More info ]
Unavailable
Replaced by 32-8M0062614
HOSE (48.00 Inches Bulk 32-8M0062614
32-8M0062614

About Mercury Marine

OEM Part

32-8M0062614 - Water Hose [ More info ]

Add to shopping cart $60.80 $52.06
In stock Explain stock levels

#13 32-53461 70 HOSE, (48.00 Inches Bulk), Cut As Required - Water Pump To Oil Cooler (1 required per assembly)
32865672070 32-53461 70
32-53461 70

About Mercury Marine

OEM Part

32-53461 70 - Hose -48 Inch [ More info ]

Add to shopping cart $64.45
7 in stock. Explain stock levels

HOSE (48.00 Inche  - Replaced by 32-8M0062665
32-865672070

This part has been superseded.

32-865672070 - HOSE (48.00 Inche [ More info ]
Unavailable
Replaced by 32-8M0062665
HOSE (48.00 Inches Bulk 32-8M0062665
32-8M0062665

About Mercury Marine

OEM Part

328M0062665 - Hose [ More info ]

Add to shopping cart $68.84
Available to order: Usually ships within 8 days. Explain stock levels

Molded Hose
18-75125

About Sierra Marine

OEM Match

18-75125 - Straight Hose [ More info ]

Add to shopping cart $36.99 $29.83
Available to order: Usually ships within 8 days. Explain stock levels

#14 54-18076 6 CLAMP, Worm Gear (8 required per assembly)
CLAMP Worm Gear 54-18076  6
 

About Mercury Marine

OEM Part

54-18076 6 - Clamp [ More info ]

Add to shopping cart $10.90
Available to order: Usually ships within 8 days. Explain stock levels

#15 32-12817 HOSE, Oil Cooler To Oil Cooler (1 required per assembly)
HOSE 32-12817
32-12817

About Mercury Marine

OEM Part

32-12817 - Hose [ More info ]

Add to shopping cart $40.96
Available to order: Usually ships within 8 days. Explain stock levels

#16 32-12818 HOSE, Oil Cooler To Tube (1 required per assembly)
HOSE              O - Replaced by 32-848956
 

This part has been superseded.

32-12818 - HOSE O [ More info ]
Unavailable
Replaced by 32-848956
HOSE Molded 32-848956
32-848956

About Mercury Marine

OEM Part

32-848956 - Hose [ More info ]

Add to shopping cart $43.75
Available to order: Usually ships within 8 days. Explain stock levels

#17 22-13177 TUBE, Water Hose (1 required per assembly)
TUBE 22-13177
 

About Mercury Marine

OEM Part

22-13177 - Tube [ More info ]

Add to shopping cart $15.72
Available to order: Usually ships within 8 days. Explain stock levels

#18 32-64346 HOSE, Molded, Oil Cooler To Thermostat Housing (1 required per assembly)
HOSE Molded       O - Replaced by 32-896998
32-64346

This part has been superseded.

32-64346 - HOSE Molded O [ More info ]
Unavailable
Replaced by 32-896998
HOSE Molded 32-896998
32-896998

About Mercury Marine

OEM Part

32-896998 - Molded Hose [ More info ]

Add to shopping cart $37.50
Available to order: Usually ships within 8 days. Explain stock levels

#19 32-89718 1 HOSE, Thermostat Housing To Water Pump (2 required per assembly)
HOSE 32-89718  1
32-89718  1

About Mercury Marine

OEM Part

32-89718 1 - Molded Hose [ More info ]

Add to shopping cart $66.50 $56.94
1 in stock. Explain stock levels

#20 54-18076 9 CLAMP, Worm Gear (2 required per assembly)
CLAMP Worm Gear   O NLA
 

About Mercury Marine

OEM Part

CLAMP Worm Gear O NLA [ More info ]
Unavailable
#21 32-89749 1 HOSE, Port - Thermostat Cover To Exhaust Manifold (1 required per assembly)
HOSE 32-89749  1
32-89749  1

About Mercury Marine

OEM Part

32-89749 1 - Molded Hose [ More info ]

Add to shopping cart $58.80 $50.35
Available to order: Usually ships within 8 days. Explain stock levels

#22 32-89730 1 HOSE, Starboard - Thermostat Cover To Exhaust Manifold (1 required per assembly)
HOSE 32-89730  1
32-89730  1

About Mercury Marine

OEM Part

32-89730 1 - Molded Hose [ More info ]

Add to shopping cart $62.80 $53.77
1 in stock. Explain stock levels

#23 54-18076 4 CLAMP, Worm Gear (4 required per assembly)
CLAMP Worm Gear 54-18076  4
 

About Mercury Marine

OEM Part

54-18076 4 - Clamp [ More info ]

Add to shopping cart $6.25
Available to order: Usually ships within 8 days. Explain stock levels

#- 27-13218A 1 GASKET SET (1 required per assembly) SN# 0A398941 THRU 0D725499
GASKET SET        O NLA
 

About Mercury Marine

OEM Part

GASKET SET O NLA [ More info ]
Unavailable
#- 27-808730A92 GASKET SET (1 required per assembly) SN# 0D725500 THRU 0D937011
GASKET SET        O - Replaced by 27-808730A98
 

This part has been superseded.

27-808730A92 - GASKET SET O [ More info ]
Unavailable
Replaced by 27-808730A98
GASKET SET        O NLA
27-808730A98

About Mercury Marine

OEM Part

GASKET SET O NLA [ More info ]
Unavailable