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

Engine Diagram

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 849702T11 COVER ASSEMBLY, Rocker Valve - Blue (2 required per assembly)
COVER ASSY (BLUE) O - Replaced by -849702A11  
849702T11This part has been superseded. COVER ASSY (BLUE) O - Replaced by -849702A11
(more info)
    UnavailableUnavailable Parts
COVER ASSEMBLY Ro 849702A11 849702A11
849702A11OEM Part 849702A11 - Cover Assembly (Blue) (more info) About Mercury Marine $367.51 $367.51 Add to shopping cart
Available to order:
Usually ships
within 8 days
#2 25-811553 GROMMET (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 36-845753T 1 CAP (2 required per assembly)
CAP 845753T 1 845753T 1
845753T 1OEM Part 845753T 1 - Oil Fill Cap (more info) About Mercury Marine $13.00 $13.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
#4 37-849950 DECAL, Oil Fill Cap (2 required per assembly)
DECAL Oil Fill Ca 37-849950  
37-849950OEM Part 37-849950 - Decal (more info) About Mercury Marine $4.13 $4.13 Add to shopping cart
Available to order:
Usually ships
within 8 days
#5 38-842184T NAMEPLATE, Rocker Cover (2 required per assembly)
NAMEPLATE         O - Replaced by 38-842184  
38-842184TThis part has been superseded. NAMEPLATE O - Replaced by 38-842184
(more info)
    UnavailableUnavailable Parts
NAMEPLATE         O - Replaced by 38-841247  
38-842184This part has been superseded. NAMEPLATE O - Replaced by 38-841247
(more info)
    UnavailableUnavailable Parts
NAMEPLATE 38-841247 38-841247
38-841247OEM Part 38-841247 - Name Plate (more info) About Mercury Marine $292.24 $292.24 Add to shopping cart
Available to order:
Usually ships
within 8 days
#6 97850 ELBOW, 90 Degree, Breather (2 required per assembly)
ELBOW-BREATHER    O - Replaced by -97850T  
97850This part has been superseded. ELBOW-BREATHER O - Replaced by -97850T
(more info)
    UnavailableUnavailable Parts
ELBOW 90 Degree 97850T 97850T
97850TOEM Part 97850T - Elbow (more info) About Mercury Marine $3.80 $3.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#7 32-15894 31 TUBING, (20.00 Inches Bulk), Breather - Cut 8.500 Inches (2 required per assembly)
TUBING (20.00 Inc 32-15894 31 32-15894 31
32-15894 31OEM Part 32-15894 31 - Tube - 20 Inch (more info) About Mercury Marine $27.58 $27.58 Add to shopping cart
Available to order:
Usually ships
within 8 days
#9 22-849999 FITTING, Tee (1 required per assembly)
FITTING 22-849999  
22-849999OEM Part 22-849999 - Fitting (more info) About Mercury Marine $4.10 $4.10 Add to shopping cart
Available to order:
Usually ships
within 8 days
#10 56762 TIE STRAP, (4.00 Inches) (AR required per assembly)
TIE STRAP (4.00 I 56762 56762
56762OEM Part 56762 - Tie Strap - Priced Individually (more info) About Mercury Marine $0.30 $0.30 Add to shopping cart
10+ in stock. Explain stock levels
#11 11-35888 NUT, (.250-28) Stainless Steel (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
#12 12-846673 WASHER, (.265 x .500 x .060) Stainless Steel (14 required per assembly)
WASHER (.265 x .5 12-846673  
12-846673OEM Part 12-846673 - Washer (more info) About Mercury Marine $0.80 $0.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#13 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
#14 54-42553 J CLIP, Starboard - Top Rear (1 required per assembly)
J CLIP 54-42553  
54-42553OEM Part 54-42553 - J Clip (more info) About Mercury Marine $4.20 $4.20 Add to shopping cart
Available to order:
Usually ships
within 8 days
#15 27-811588 GASKET, Rocker Cover (2 required per assembly)
278M0092920 27-811588 27-811588
27-811588OEM Part 27-811588 - Gasket (more info) About Mercury Marine $141.67 $40.80 Add to shopping cart
9 in stock. Explain stock levels
ROCKER COVER GASKET  
27-8M0092920OEM Part 27-8M0092920 - ROCKER Cover Gasket (more info) About Mercury Marine $83.25 $83.25 Add to shopping cart
10+ in stock. Explain stock levels
ROCKER COVER GASKET 18-25002
18-25002OEM Match 18-25002 - Gasket 27-811588 (more info) About Sierra Marine $131.99 $107.39 Add to shopping cart
Available to order:
Usually ships
within 8 days
#16 843140 LOCK, Valve Stem (32 required per assembly)
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
#17 24-845617A 1 SPRING/RETAINER KIT (16 required per assembly)
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
#18 845592 RETAINER (16 required per assembly)
RETAINER          O - Replaced by -843465  
845592This part has been superseded. RETAINER O - Replaced by -843465
(more info)
    UnavailableUnavailable Parts
RETAINER 843465 843465
843465OEM Part 843465 - Retainer (more info) About Mercury Marine $15.89 $15.89 Add to shopping cart
Available to order:
Usually ships
within 8 days
#19 26-842755 SEAL, Valve, Intake And Exhaust (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
10+ in stock. Explain stock levels
#20 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
#20 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
#20 15-77625 SHIM, Valve Spring (.060) (AR required per assembly)
SHIM Valve Spring 15-77625  
15-77625OEM Part 15-77625 - Shim -.060 (more info) About Mercury Marine $2.14 $2.14 Add to shopping cart
Available to order:
Usually ships
within 8 days
#21 843080 VALVE, Exhaust (8 required per assembly)
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
#22 821024T VALVE, Intake, Standard - 2.250 Diameter (8 required per assembly)
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
#23 848262 PUSH ROD, (7.550), Inlet (8 required per assembly)
PUSH ROD (7.550) 848262 848262
848262OEM Part 848262 - Push Rod (more info) About Mercury Marine $41.25 $41.25 Add to shopping cart
Available to order:
Usually ships
within 8 days
#23 848264 PUSH ROD, (8.550), Exhaust (8 required per assembly)
PUSH ROD (8.550) 848264 848264
848264OEM Part 848264 - Push Rod (more info) About Mercury Marine $41.25 $41.25 Add to shopping cart
Available to order:
Usually ships
within 8 days
#24 845707 GUIDE, Pushrod (8 required per assembly)
GUIDE             O - Replaced by -881686 845707
845707This part has been superseded. GUIDE O - Replaced by -881686
(more info)
    UnavailableUnavailable Parts
GUIDE 881686 881686
881686OEM Part 881686 - Guide (more info) About Mercury Marine $13.30 $13.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
#25 845618T ROCKER ARM ASSEMBLY (16 required per assembly)
ROCKER ARM ASSEMB 845618T 845618T
845618TOEM Part 845618T - Rocker Arm Assembly (more info) About Mercury Marine $95.19 $95.19 Add to shopping cart
Available to order:
Usually ships
within 8 days
#26 11-848610 NUT, Rocker Arm Valve (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
#27 16-821836 STUD, Rocker Arm Valve (16 required per assembly)
STUD 16-821836 16-821836
16-821836OEM Part 16-821836 - Stud (more info) About Mercury Marine $24.28 $24.28 Add to shopping cart
Available to order:
Usually ships
within 8 days
#28 938-827495T11 CYLINDER HEAD ASSEMBLY (2 required per assembly)
HEAD ASY-CYLINDER O - Replaced by 938-845704T 5  
938-827495T11This part has been superseded. HEAD ASY-CYLINDER O - Replaced by 938-845704T 5
(more info)
    UnavailableUnavailable Parts
HEAD ASY-CYLINDER 938-845704T 5  
938-845704T 5OEM Part 938-845704T 5 - Cylinder Head Assembly (more info) About Mercury Marine $1,943.28 $1,943.28 Add to shopping cart
Available to order:
Usually ships
within 8 days
#29 27-811546A03 GASKET KIT, Cylinder Head (2 required per assembly)
GASKET KIT        O - Replaced by 27-811546A04 27-811546A03
27-811546A03This part has been superseded. GASKET KIT O - Replaced by 27-811546A04
(more info)
    UnavailableUnavailable Parts
GASKET KIT Cylind 27-811546A04 27-811546A04
27-811546A04OEM Part 27-811546A04 - Gasket Kit (more info) About Mercury Marine $188.75 $188.75 Add to shopping cart
Available to order:
Usually ships
within 8 days
#30 17-843931 PIN, Dowel (4 required per assembly)
PIN Dowel 17-843931  
17-843931OEM Part 17-843931 - Pin -Dowel (more info) About Mercury Marine $8.90 $8.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#31 10-845705 SCREW, (.438-14 x 4.060), Cylinder Head (24 required per assembly)
ORD 8M0102366     O NLA  
10-845705 ORD 8M0102366 O NLA
(more info)
    UnavailableUnavailable Parts
#32 10-845706M 2 SCREW, (.438-14 x 2.060), Cylinder Head (8 required per assembly)
ORD 8M0102366     O NLA  
10-845706M 2 ORD 8M0102366 O NLA
(more info)
    UnavailableUnavailable Parts
#- 27-842129A 1 GASKET/SEAL SET, Engine Overhaul (1 required per assembly) - NOTE: See Gasket/Seal Set Parts Section For Complete Parts Listing
GASKET/SEAL SET E 27-842129A 1 27-842129A 1
27-842129A 1OEM Part 27-842129A 1 - Gasket/Seal Set (more info) About Mercury Marine $783.11 $783.11 Add to shopping cart
Available to order:
Usually ships
within 8 days