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Parts for Mercury Marine Model 500, 50 HP End Caps, Manifold & Exhaust Covers

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 863-5885A 3 CYLINDER BLOCK AND CRANKCASE ASS'Y (1 required per assembly) SEE "CYLINDER BLOCK AND CRANKCASE ASS'Y" FOR BREAKDOWN UNITED STATES 4962055 AND BELOW AUSTRALIA 8053229 AND BELOW BELGIUM 9195685 AND BELOW CANADA 7115572 AND BELOW
CYLINDER BLOCK    O - Replaced by 863-6467A 4  
863-5885A 3This part has been superseded. CYLINDER BLOCK O - Replaced by 863-6467A 4
(more info)
    UnavailableUnavailable Parts
CYLINDER BLOCK    O - Replaced by 863-7496A 3  
863-6467A 4This part has been superseded. CYLINDER BLOCK O - Replaced by 863-7496A 3
(more info)
    UnavailableUnavailable Parts
CYLINDER BLOCK    O - Replaced by 863-7593A 3  
863-7496A 3This part has been superseded. CYLINDER BLOCK O - Replaced by 863-7593A 3
(more info)
    UnavailableUnavailable Parts
CYLINDER BLOCK    O - Replaced by 863-8358A 4  
863-7593A 3This part has been superseded. CYLINDER BLOCK O - Replaced by 863-8358A 4
(more info)
    UnavailableUnavailable Parts
CYLINDER BLOCK    O - Replaced by 863-8981A 6  
863-8358A 4This part has been superseded. CYLINDER BLOCK O - Replaced by 863-8981A 6
(more info)
    UnavailableUnavailable Parts
CYLINDER BLOCK    O NLA  
863-8981A 6 CYLINDER BLOCK O NLA
(more info)
    UnavailableUnavailable Parts
#1 863-6467A 4 CYLINDER BLOCK AND CRANKCASE ASS'Y (1 required per assembly) SEE "CYLINDER BLOCK AND CRANKCASE ASS'Y" FOR BREAKDOWN UNITED STATES 4962056 THRU 5193258 AUSTRALIA 8053230 THRU 8057394 BELGIUM 9195686 THRU 9217255 CANADA 7115573 THRU 7116222
#1 863-7496A 3 CYLINDER BLOCK AND CRANKCASE ASS'Y (1 required per assembly) SEE "CYLINDER BLOCK AND CRANKCASE ASS'Y" FOR BREAKDOWN UNITED STATES 5193259 AND UP AUSTRALIA 8057395 AND UP BELGIUM 9217256 AND UP
#2 1160-5826A 2 END CAP ASSEMBLY, UPPER (1 required per assembly)
END CAP ASSY      O NLA  
1160-5826A 2 END CAP ASSY O NLA
(more info)
    UnavailableUnavailable Parts
#3 26-29476 OIL SEAL (1 required per assembly)
OIL SEAL @5       O - Replaced by 26-41953  
26-29476This part has been superseded. OIL SEAL @5 O - Replaced by 26-41953
(more info)
    UnavailableUnavailable Parts
SEAL Note: must be ordered in multiples of 2 26-41953 26-41953
26-41953OEM Part 26-41953 - Seal - Priced Individually (more info) About Mercury Marine $14.90 $14.90 Add to shopping cart
10+ in stock. Explain stock levels
Oil Seal 18-2016
18-2016OEM Match 18-2016 - Seal, 26-41953 (more info)
Replaces OEM #0764337
About Sierra Marine $10.99 $8.18 Add to shopping cart
10+ in stock. Explain stock levels
#4 25-20081 "O" RING, UPPER END CAP (1 required per assembly)
O-RING 25-20081 25-20081
25-20081OEM Part 25-20081 - O-Ring - Priced Individually (more info) About Mercury Marine $2.30 $2.30 Add to shopping cart
10+ in stock. Explain stock levels
O-Ring 18-7151-9
18-7151-9OEM Match 18-7151-9 - (PK5) O-Ring Mercury 25-20081 (more info) About Sierra Marine $12.45 $7.10 Add to shopping cart
Available to order:
Usually ships
within 8 days
#5 30-53853 BALL BEARING, UPPER END CAP (1 required per assembly)
BALL BEARING      O - Replaced by 30-63742  
30-53853This part has been superseded. BALL BEARING O - Replaced by 30-63742
(more info)
    UnavailableUnavailable Parts
BEARING-BALL      O - Replaced by 30-63742T 30-63742
30-63742This part has been superseded. BEARING-BALL O - Replaced by 30-63742T
(more info)
    UnavailableUnavailable Parts
BEARING Ball 30-63742T 30-63742T
30-63742TOEM Part 30-63742T - Ball Bearing (more info) About Mercury Marine $28.30 $24.24 Add to shopping cart
Available to order:
Usually ships
within 8 days
Ball Bearing 18-1154
18-1154OEM Match 18-1154 - Bearing, 30-63742, 377139 (more info)
Replaces OEM #0377139
About Sierra Marine $25.99 $19.44 Add to shopping cart
1 in stock. Explain stock levels
#6 15-72538A 1 SHIM (AR required per assembly) UPPER END CAP TO CYL. BLOCK/CRANKCASE (.005-10)
SHIM SET          O NLA  
15-72538A 1 SHIM SET O NLA
(more info)
    UnavailableUnavailable Parts
#7 10-73274 SCREW, UPPER END CAP MOUNTING (3/4") (4 required per assembly)
SCREW @2          O - Replaced by 10-824941  
10-73274This part has been superseded. SCREW @2 O - Replaced by 10-824941
(more info)
    UnavailableUnavailable Parts
SCREW (.312-18 x 10-824941 10-824941
10-824941OEM Part 10-824941 - Screw (more info) About Mercury Marine $10.50 $10.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#8 37639 MOUNT, RUBBER-CRANKCASE (2 required per assembly)
MOUNT             O - Replaced by -63007  
37639This part has been superseded. MOUNT O - Replaced by -63007
(more info)
    UnavailableUnavailable Parts
Owners manual  Manual 377209 Owners Manual - 1958; 35; RDE-19C, RDEL-19C; Johnson OUTBOARDS $24.95 $24.95 Add to shopping cart
90435 63007  
63007OEM Part 63007 - Mount (more info) About Mercury Marine $30.00 $30.00 Add to shopping cart
2 in stock. Explain stock levels
MOUNT 90435 90435
90435OEM Part 90435 - Mount (more info) About Mercury Marine $41.58 $41.58 Add to shopping cart
8 in stock. Explain stock levels
#9 11-46887 NUT, CRANKCASE RUBBER MOUNT (4 required per assembly)
NUT @15           O - Replaced by 11-20184  
11-46887This part has been superseded. NUT @15 O - Replaced by 11-20184
(more info)
    UnavailableUnavailable Parts
NUT (1/4-28X7/32) 11-20184 11-20184
11-20184OEM Part 11-20184 - Nut - Priced Individually (more info) About Mercury Marine $1.30 $1.30 Add to shopping cart
2 in stock. Explain stock levels
#10 84-65773A 5 GROUND STRAP, CRANKCASE MOUNT (1 required per assembly)
GROUND CABLE ASSY,NLA 84-65773A 5  
84-65773A 5OEM Part 84-65773A 5 - Ground Cable Assembly, NLA (more info) About Mercury Marine $4.00 $4.00 Add to shopping cart
10+ in stock. Explain stock levels
#11 1158-6410A 2 END CAP ASSEMBLY, LOWER (1 required per assembly) UNITED STATES 4962055 AND BELOW AUSTRALIA 8053229 AND BELOW BELGIUM 9195685 AND BELOW CANADA 7115572 AND BELOW
END CAP           O - Replaced by 1158-6635A 1  
1158-6410A 2This part has been superseded. END CAP O - Replaced by 1158-6635A 1
(more info)
    UnavailableUnavailable Parts
END CAP           O - Replaced by 1158-6635T 1  
1158-6635A 1This part has been superseded. END CAP O - Replaced by 1158-6635T 1
(more info)
    UnavailableUnavailable Parts
END CAP           O NLA  
1158-6635T 1 END CAP O NLA
(more info)
    UnavailableUnavailable Parts
#11 1158-6635A 1 END CAP ASSEMBLY, LOWER (1 required per assembly) UNITED STATES 4962056 AND UP AUSTRALIA 8053230 AND UP BELGIUM 9195686 AND UP CANADA 7115573 AND UP
#16 15-20085A 1 SHIM (AR required per assembly) LOWER END CAP TO CRANKCASE/CYL, BLOCK (.005-10)
SHIM SET 15-20085A 1  
15-20085A 1OEM Part 15-20085A 1 - Shim Set (more info) About Mercury Marine $48.33 $48.33 Add to shopping cart
2 in stock. Explain stock levels
#17 10-29256 SCREW, LOWER END CAP MOUNTING (7/8") (3 required per assembly)
SCREW (.312-18 x 10-29256 10-29256
10-29256OEM Part 10-29256 - Screw - Priced Individually (more info) About Mercury Marine $1.80 $1.80 Add to shopping cart
10+ in stock. Explain stock levels
#18 27-72486 GASKET (1 required per assembly) CYLINDER BLOCK TO BAFFLE PLATE
GASKET @2         O - Replaced by 27-85491  
27-72486This part has been superseded. GASKET @2 O - Replaced by 27-85491
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-85491  1  
27-85491This part has been superseded. GASKET O - Replaced by 27-85491 1
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-85491  2  
27-85491 1This part has been superseded. GASKET O - Replaced by 27-85491 2
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-85491  3  
27-85491 2This part has been superseded. GASKET O - Replaced by 27-85491 3
(more info)
    UnavailableUnavailable Parts
GASKET 27-85491  3 27-85491  3
27-85491 3OEM Part 27-85491 3 - Gasket (more info) About Mercury Marine $7.20 $7.20 Add to shopping cart
Available to order:
Usually ships
within 8 days
Gasket 18-0942
18-0942OEM Match 18-0942 - Gasket, 27-85491 2 (more info) About Sierra Marine $6.49 $4.86 Add to shopping cart
8 in stock. Explain stock levels
#19 77161 PLATE, BAFFLE-EXHAUST MANIFOLD (1 required per assembly)
BAFFLE PLATE      O - Replaced by -90421  
77161This part has been superseded. BAFFLE PLATE O - Replaced by -90421
(more info)
    UnavailableUnavailable Parts
BAFFLE PLATE      O - Replaced by -90421  1  
90421This part has been superseded. BAFFLE PLATE O - Replaced by -90421 1
(more info)
    UnavailableUnavailable Parts
PLATE-BAFFLE      O - Replaced by -90421T01 90421  1
90421 1This part has been superseded. PLATE-BAFFLE O - Replaced by -90421T01
(more info)
    UnavailableUnavailable Parts
PLATE-BAFFLE 90421T01 90421T01
90421T01OEM Part 90421T01 - Baffle Plate (more info) About Mercury Marine $104.42 $104.42 Add to shopping cart
Available to order:
Usually ships
within 8 days
#20 27-72488 GASKET, BAFFLE PLATE TO EXHAUST COVER (1 required per assembly)
GASKET AT 2       O - Replaced by 27-85492  
27-72488This part has been superseded. GASKET AT 2 O - Replaced by 27-85492
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-85492  1  
27-85492This part has been superseded. GASKET O - Replaced by 27-85492 1
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-85492  2  
27-85492 1This part has been superseded. GASKET O - Replaced by 27-85492 2
(more info)
    UnavailableUnavailable Parts
GASKET            O - Replaced by 27-85492  4  
27-85492 2This part has been superseded. GASKET O - Replaced by 27-85492 4
(more info)
    UnavailableUnavailable Parts
GASKET 27-85492  4 27-85492  4
27-85492 4OEM Part 27-85492 4 - Gasket (more info) About Mercury Marine $10.30 $10.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
Gasket 18-0137
18-0137OEM Match 18-0137 - Gasket, 27-85492 2 (more info) About Sierra Marine $8.49 $6.19 Add to shopping cart
1 in stock. Explain stock levels
#21 75966 COVER, EXHAUST MANIFOLD (1 required per assembly) UNITED STATES 4357640 THRU 4576236 AUSTRALIA 8030090 THRU 8042649 BELGIUM 9107214 THRU 9136249 CANADA 7068998 THRU 7088597
COVER             O - Replaced by -77381  
75966This part has been superseded. COVER O - Replaced by -77381
(more info)
    UnavailableUnavailable Parts
EXH COVER,NLA 77381 77381
77381OEM Part 77381 - Exhaust Cover, NLA (more info) About Mercury Marine $60.00 $60.00 Add to shopping cart
5 in stock. Explain stock levels
#21 77381 COVER, EXHAUST MANIFOLD (1 required per assembly) UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
#22 10-37562 SCREW (14 required per assembly) MANIFOLD COVER TO CYLINDER BLOCK (1")
SCREW (.312-18 x 10-37562 10-37562
10-37562OEM Part 10-37562 - Screw - Priced Individually (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
10+ in stock. Explain stock levels
#22 10-38837 SCREW (1 required per assembly) MANIFOLD COVER TO CYLINGER BLOCK (1 1/8")
SCREW (.312-18 x 10-38837 10-38837
10-38837OEM Part 10-38837 - Screw - Priced Individually (more info) About Mercury Marine $2.10 $2.10 Add to shopping cart
6 in stock. Explain stock levels
#23 10-73280 SCREW (1 required per assembly) ADJUSTING-EXHAUST MANIFOLD COVER (1 1/2")
SCREW @5          O NLA  
10-73280 SCREW @5 O NLA
(more info)
    UnavailableUnavailable Parts
#23 10-73281 SCREW (2 required per assembly) ADJUSTING-ECHAUST MANIFOLD COVER (1 3/4")
SCREW,NLA 10-73281  
10-73281OEM Part 10-73281 - Screw, NLA (more info) About Mercury Marine $1.25 $1.25 Add to shopping cart
8 in stock. Explain stock levels
#24 11-20890 NUT, ADJUSTING SCREW (3 required per assembly)
NUT (.250-20) 11-20890 11-20890
11-20890OEM Part 11-20890 - Nut - Priced Individually (more info) About Mercury Marine $1.20 $1.20 Add to shopping cart
10+ in stock. Explain stock levels
#25 26852 CAP, ADJUSTING SCREW (3 required per assembly)
CAP Nylon 26852 26852
26852OEM Part 26852 - Cap (more info) About Mercury Marine $2.70 $2.70 Add to shopping cart
10+ in stock. Explain stock levels
#26 1017-4002A 1 COVER ASSEMBLY, CYLINGER BLOCK (1 required per assembly) UNITED STATES 4962055 AND BELOW AUSTRALIA 8053229 AND BELOW BELGIUM 9195685 AND BELOW CANADA 7115572 AND BELOW
COVER ASSY        O - Replaced by 1017-7054A 1  
1017-4002A 1This part has been superseded. COVER ASSY O - Replaced by 1017-7054A 1
(more info)
    UnavailableUnavailable Parts
CYL BLOCK COVER   O NLA  
1017-7054A 1 CYL BLOCK COVER O NLA
(more info)
    UnavailableUnavailable Parts
#26 1017-7054A 1 COVER ASSEMBLY, CYLINDER BLOCK (1 required per assembly) UNITED STATES 4962056 AND UP AUSTRALIA 8053230 AND UP BELGIUM 9195686 AND UP CANADA 7115573 AND UP
#27 22-32802 PLUG, PIPE-CYLINDER BLOCK COVER (1 required per assembly)
PLUG @2           O - Replaced by 22-32802  1  
22-32802This part has been superseded. PLUG @2 O - Replaced by 22-32802 1
(more info)
    UnavailableUnavailable Parts
PLUG-(BRASS)@2    O - Replaced by 22-32802  2  
22-32802 1This part has been superseded. PLUG-(BRASS)@2 O - Replaced by 22-32802 2
(more info)
    UnavailableUnavailable Parts
PLUG Pipe (.125-2 22-32802  2 22-32802 2
22-32802 2OEM Part 22-32802 2 - Plug - (brass) - Priced Individually (more info) About Mercury Marine $5.50 $5.50 Add to shopping cart
8 in stock. Explain stock levels
Pipe Plug, 1/8-27 Npt Pipe 18-4263
18-4263OEM Match 18-4263 - Pipe Plug, 1/8-27 NPT Pi (more info) About Sierra Marine $4.49 $3.24 Add to shopping cart
Available to order:
Usually ships
within 8 days
#28 27-78026 GASKET, CYLINDER BLOCK COVER (1 required per assembly)
2785487 27-78026  
27-78026OEM Part 27-78026 - Gasket - Priced Individually (more info) About Mercury Marine $3.75 $3.75 Add to shopping cart
8 in stock. Explain stock levels
GASKET 27-85487 27-85487
27-85487OEM Part 27-85487 - Gasket (more info) About Mercury Marine $6.90 $6.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
Cyl. Block Cover Gasket 18-2507-9
18-2507-9OEM Match 18-2507-9 - Gasket 27-85487 2-Pack (more info) About Sierra Marine $13.98 $9.51 Add to shopping cart
1 in stock. Explain stock levels
#29 10-69100 SCREW, CYLINDER BLOCK COVER (1") (10 required per assembly)
SCREW             O - Replaced by 10-76630  
10-69100This part has been superseded. SCREW O - Replaced by 10-76630
(more info)
    UnavailableUnavailable Parts
SCREW (.250-20 x 10-76630 10-76630
10-76630OEM Part 10-76630 - Screw - Priced Individually (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
4 in stock. Explain stock levels
#33 72036 COVER, TRANSFER PORT (1 required per assembly) UNITED STATES 4357640 THRU 4576236 AUSTRALIA 8030090 THRU 8042649 BELGIUM 9107214 THRU 9136249 CANADA 7068998 THRU 7088597
COVER             O - Replaced by -76420A 1  
72036This part has been superseded. COVER O - Replaced by -76420A 1
(more info)
    UnavailableUnavailable Parts
COVER ASSY        O - Replaced by -87553A 1  
76420A 1This part has been superseded. COVER ASSY O - Replaced by -87553A 1
(more info)
    UnavailableUnavailable Parts
COVER ASSY        O - Replaced by -18827A 1  
87553A 1This part has been superseded. COVER ASSY O - Replaced by -18827A 1
(more info)
    UnavailableUnavailable Parts
COVER             O NLA  
18827A 1 COVER O NLA
(more info)
    UnavailableUnavailable Parts
#31 76420A 1 COVER ASSEMBLY, TRANSFER PORT (1 required per assembly) UNITED STATES 4576237 AND UP AUSTRALIA 8042650 AND UP BELGIUM 9136250 AND UP CANADA 7088598 AND UP
#34 27-27936 GASKET, TRANSFER PORT COVER (2 required per assembly)
GASKET @10        O - Replaced by 27-27936  1 27-27936
27-27936This part has been superseded. GASKET @10 O - Replaced by 27-27936 1
(more info)
    UnavailableUnavailable Parts
GASKET 27-27936  1 27-27936  1
27-27936 1OEM Part 27-27936 1 - Gasket (more info) About Mercury Marine $2.50 $2.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#35 10-20540 SCREW, TRANSFER PORT COVER MOUNTING (5/8") (6 required per assembly)
SCREW,NLA 10-20540  
10-20540OEM Part 10-20540 - Screw, NLA (more info) About Mercury Marine $1.25 $1.25 Add to shopping cart
10+ in stock. Explain stock levels
#- 27-72486A78 GASKET SET ( required per assembly)
GASKET SET        O - Replaced by 27-72486A79  
27-72486A78This part has been superseded. GASKET SET O - Replaced by 27-72486A79
(more info)
    UnavailableUnavailable Parts
GASKET SET        O - Replaced by 27-72486A32  
27-72486A79This part has been superseded. GASKET SET O - Replaced by 27-72486A32
(more info)
    UnavailableUnavailable Parts
GASKET SET        O NLA 27-72486A32
27-72486A32 GASKET SET O NLA
(more info)
    UnavailableUnavailable Parts
Powerhead Gasket Set 18-4353
18-4353OEM Match 18-4353 - Gasket Set 27-72486A32 (more info) About Sierra Marine $92.99 $73.14 Add to shopping cart
1 in stock. Explain stock levels
#- 27-72486A79 GASKET SET ( required per assembly)