Logo

Parts for MerCruiser Race Engine and Drive 500 Bulldog Cylinder Head & Rocker Cover

Engine Diagram

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 811587A 4 COVER ASSEMBLY, Blue - Rocker Valve (2 required per assembly)
COVER ASSY-VALVE  O NLA 811587A 4
811587A 4 COVER ASSY-VALVE O NLA
(more info)
    UnavailableUnavailable Parts
#2 25-811553 GROMMET, Rocker Cover (2 required per assembly)
GROMMET 25-811553  
25-811553OEM Part 25-811553 - Grommet (more info) About Mercury Marine $25.42 $25.42 Add to shopping cart
Available to order:
Usually ships
within 8 days
#3 36-811569 CAP, Oil Tank (2 required per assembly)
CAP Oil Tank 36-811569  
36-811569OEM Part 36-811569 - Oil Fill Cap (more info) About Mercury Marine $24.92 $24.92 Add to shopping cart
2 in stock. Explain stock levels
#4 37-848590 DECAL (2 required per assembly)
DECAL             O NLA  
37-848590 DECAL O NLA
(more info)
    UnavailableUnavailable Parts
#5 22-848557 FITTING (2 required per assembly)
FITTING           O - Replaced by 22-848557  1  
22-848557This part has been superseded. FITTING O - Replaced by 22-848557 1
(more info)
    UnavailableUnavailable Parts
FITTING 22-848557  1  
22-848557 1OEM Part 22-848557 1 - Fitting (more info) About Mercury Marine $17.58 $17.58 Add to shopping cart
Available to order:
Usually ships
within 8 days
#6 54-64235 2 J CLIP (1 required per assembly)
J CLIP 54-64235  2  
54-64235 2OEM Part 54-64235 2 - J Clip (more info) About Mercury Marine $1.88 $1.88 Add to shopping cart
Available to order:
Usually ships
within 8 days
#7 11-35888 NUT, (.250-28) (14 required per assembly)
NUT (.250-28) Sta 11-35888 11-35888
11-35888OEM Part 11-35888 - Nut - Priced Individually (more info) About Mercury Marine $4.70 $1.14 Add to shopping cart
10+ in stock. Explain stock levels
S.S. Steel Locknut 18-3722-9
18-3722-9OEM Match 18-3722-9 - Lock Nut, 121731, 11-35888 (more info)
Replaces OEM #0121731
About Sierra Marine $14.95 $7.67 Add to shopping cart
Available to order:
Usually ships
within 8 days
#8 12-35462 WASHER, (.2656 x .625 x .0625) (14 required per assembly)
WASHER (.2656 x . 12-35462  
12-35462OEM Part 12-35462 - Washer - Priced Individually (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
10+ in stock. Explain stock levels
#9 16-56766 STUD, (.250-20/.250-28 x 1.380) (14 required per assembly)
STUD (.250-20/.25 16-56766 16-56766
16-56766OEM Part 16-56766 - Stud - Priced Individually (more info) About Mercury Marine $2.40 $2.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#10 27-14765 GASKET, Rocker Cover (2 required per assembly)
GASKET 27-14765 27-14765
27-14765OEM Part 27-14765 - Gasket (more info) About Mercury Marine $127.08 $127.08 Add to shopping cart
3 in stock. Explain stock levels
Rocker Cover Gasket 18-25001
18-25001OEM Match 18-25001 - Gasket 27-14765 - Special Order - No Returns (more info) About Sierra Marine $65.49 $62.70 Add to shopping cart
In stock - special order item. Explain stock levels
#11 96028 1 KEY, Valve Stem (32 required per assembly)
LOCK-VALVE @2     O - Replaced by -843140 96028  1
96028 1This part has been superseded. LOCK-VALVE @2 O - Replaced by -843140
(more info)
    UnavailableUnavailable Parts
LOCK-VALVE @2     O - Replaced by -8M0042989 843140
843140This part has been superseded. LOCK-VALVE @2 O - Replaced by -8M0042989
(more info)
    UnavailableUnavailable Parts
LOCK-VALVE Note: must be ordered in multiples of 2 8M0042989 8M0042989
8M0042989OEM Part 8M0042989 - Lock - Valve - Priced Individually (more info) About Mercury Marine $5.04 $5.04 Add to shopping cart
Available to order:
Usually ships
within 8 days
#12 816899 RETAINER (16 required per assembly)
RETAINER          O - Replaced by 24-845617A 1  
816899This part has been superseded. RETAINER O - Replaced by 24-845617A 1
(more info)
    UnavailableUnavailable Parts
SPRING KIT        O - Replaced by 24-845617A 2  
24-845617A 1This part has been superseded. SPRING KIT O - Replaced by 24-845617A 2
(more info)
    UnavailableUnavailable Parts
SPRING/RETAINER K 24-845617A 2 24-845617A 2
24-845617A 2OEM Part 24-845617A 2 - Spring Kit (more info) About Mercury Marine $42.83 $42.83 Add to shopping cart
Available to order:
Usually ships
within 8 days
#13 26-842755 SEAL, Valve (16 required per assembly)
SEAL Valve 26-842755  
26-842755OEM Part 26-842755 - Seal - Valve (more info) About Mercury Marine $7.80 $7.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#14 24-816898 SPRING (16 required per assembly)
SPRING            O - Replaced by 24-845617A 1  
24-816898This part has been superseded. SPRING O - Replaced by 24-845617A 1
(more info)
    UnavailableUnavailable Parts
#15 15-54531 SHIM, Valve Spring (.015) (AR required per assembly)
SHIM-.015 @2      O - Replaced by 15-845669  
15-54531This part has been superseded. SHIM-.015 @2 O - Replaced by 15-845669
(more info)
    UnavailableUnavailable Parts
SHIM-.015 @2      O  
15-845669 SHIM-.015 @2 O
(more info)
    UnavailableUnavailable Parts
#15 15-77624 SHIM, Valve Spring (.030) (AR required per assembly)
SHIM Valve Spring 15-77624  
15-77624OEM Part 15-77624 - Shim -.030 (more info) About Mercury Marine $3.50 $3.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#16 13024 VALVE, Exhaust (8 required per assembly)
VALVE-EXHAUST     O - Replaced by -843080 13024
13024This part has been superseded. VALVE-EXHAUST O - Replaced by -843080
(more info)
    UnavailableUnavailable Parts
VALVE Exhaust 843080 843080
843080OEM Part 843080 - Exhaust Valve (more info) About Mercury Marine $116.87 $116.87 Add to shopping cart
Available to order:
Usually ships
within 8 days
#17 10-49106 1 BOLT (2.00 Inches) - Cylinder Head (8 required per assembly)
SCREW             O - Replaced by 10-845706M 2  
10-49106 1This part has been superseded. SCREW O - Replaced by 10-845706M 2
(more info)
    UnavailableUnavailable Parts
ORD 8M0102366     O NLA  
10-845706M 2 ORD 8M0102366 O NLA
(more info)
    UnavailableUnavailable Parts
#18 848509 PUSHROD, Valve (8 required per assembly) Inlet (8.650)
PUSH ROD (8.650) 848509 848509
848509OEM Part 848509 - Push Rod (more info) About Mercury Marine $35.35 $35.35 Add to shopping cart
Available to order:
Usually ships
within 8 days
#18 848508 PUSHROD, Valve (8 required per assembly) Exhaust (9.600)
PUSH ROD 848508 848508
848508OEM Part 848508 - Push Rod (more info) About Mercury Marine $36.01 $36.01 Add to shopping cart
Available to order:
Usually ships
within 8 days
#19 49132 GUIDE, Push Rod (8 required per assembly)
GUIDE 49132 49132
49132OEM Part 49132 - Guide (more info) About Mercury Marine $12.25 $12.25 Add to shopping cart
6 in stock. Explain stock levels
#20 10-49105 BOLT, (4.125 Inch), Cylinder Head (24 required per assembly)
SCREW             O - Replaced by 10-845705  
10-49105This part has been superseded. SCREW O - Replaced by 10-845705
(more info)
    UnavailableUnavailable Parts
ORD 8M0102366     O NLA  
10-845705 ORD 8M0102366 O NLA
(more info)
    UnavailableUnavailable Parts
#21 14729 1 ARM, Valve Rocker (16 required per assembly)
ROCKER ARM        O - Replaced by -14729T 1  
14729 1This part has been superseded. ROCKER ARM O - Replaced by -14729T 1
(more info)
    UnavailableUnavailable Parts
ARM 14729T 1 14729T 1
14729T 1OEM Part 14729T 1 - Rocker Arm (more info) About Mercury Marine $92.69 $92.69 Add to shopping cart
Available to order:
Usually ships
within 8 days
#22 11-848610 NUT (16 required per assembly)
NUT               O - Replaced by 11-8M0043537 11-848610
11-848610This part has been superseded. NUT O - Replaced by 11-8M0043537
(more info)
    UnavailableUnavailable Parts
NUT-ROCKER        O  
11-8M0043537 NUT-ROCKER O
(more info)
    UnavailableUnavailable Parts
#23 16-95820 STUD, Rocker Arm Valve (16 required per assembly)
STUD Rocker Arm V 16-95820 16-95820
16-95820OEM Part 16-95820 - Stud (more info) About Mercury Marine $10.00 $10.00 Add to shopping cart
1 in stock. Explain stock levels
#24 938-816778A 3 HEAD ASSEMBLY, Cylinder (2 required per assembly)
HEAD ASY-CYLINDER O - Replaced by 938-816778T 3  
938-816778A 3This part has been superseded. HEAD ASY-CYLINDER O - Replaced by 938-816778T 3
(more info)
    UnavailableUnavailable Parts
HEAD ASSEMBLY 938-816778T 3  
938-816778T 3OEM Part 938-816778T 3 - Cylinder Head Assembly (more info) About Mercury Marine $1,946.86 $1,946.86 Add to shopping cart
Available to order:
Usually ships
within 8 days
#25 821024 VALVE, Inlet - Standard (2.250 Diameter) (8 required per assembly)
VALVE-INLET       O - Replaced by -821024T  
821024This part has been superseded. VALVE-INLET O - Replaced by -821024T
(more info)
    UnavailableUnavailable Parts
VALVE Intake 821024T 821024T
821024TOEM Part 821024T - Inlet Valve (more info) About Mercury Marine $80.92 $80.92 Add to shopping cart
Available to order:
Usually ships
within 8 days
#26 22-61162 PLUG (2 required per assembly)
PLUG              O - Replaced by 22-845174  
22-61162This part has been superseded. PLUG O - Replaced by 22-845174
(more info)
    UnavailableUnavailable Parts
PLUG (.500-14 x . 22-845174  
22-845174OEM Part 22-845174 - Plug (more info) About Mercury Marine $5.80 $5.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#27 27-42591 GASKET, Cylinder Head (2 required per assembly)
GASKET 27-42591 27-42591
27-42591OEM Part 27-42591 - Gasket (more info) About Mercury Marine $359.40 $359.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#28 12-45176 WASHER, (.453 x .812 x .105) (8 required per assembly)
WASHER (.453 x .8 12-45176 12-45176
12-45176OEM Part 12-45176 - Washer - Priced Individually (more info) About Mercury Marine $1.10 $1.10 Add to shopping cart
10+ in stock. Explain stock levels
Washer 18-4858-9
18-4858-9OEM Match 18-4858-9 - Washer, 12-45176, 10PK (more info) About Sierra Marine $27.22 $17.96 Add to shopping cart
2 in stock. Explain stock levels
#- 27-99386A96 GASKET SET, Engine Overhaul (1 required per assembly)
GASKET SET 27-99386A96 27-99386A96
27-99386A96OEM Part 27-99386A96 - Gasket Set (more info) About Mercury Marine $1,219.18 $1,219.18 Add to shopping cart
2 in stock. Explain stock levels