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Parts for Mariner 50 HP (4 Cylinder) Crankshaft, Pistons, & Connecting Rods

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 459-9075 CRANKSHAFT (1 required per assembly)
CRANKSHAFT        O - Replaced by 459-9075T  
459-9075This part has been superseded. CRANKSHAFT O - Replaced by 459-9075T
(more info)
    UnavailableUnavailable Parts
CRANKSHAFT ASSY,NLA 459-9075T  
459-9075TOEM Part 459-9075T - Crankshaft (more info) About Mercury Marine $500.00 $500.00 Add to shopping cart
10+ in stock. Explain stock levels
#2 28-20094 KEY, CRANKSHAFT (1 required per assembly)
KEY Woodruff 28-20094  
28-20094OEM Part 28-20094 - Key - Priced Individually (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
10+ in stock. Explain stock levels
#3 534-3267A25 MAIN BEARING ASSEMBLY (VALVE TYPE) (2 required per assembly)
REED BLOCK ASSY   O - Replaced by 534-3267T25 534-3267A25
534-3267A25This part has been superseded. REED BLOCK ASSY O - Replaced by 534-3267T25
(more info)
    UnavailableUnavailable Parts
REED BLOCK ASSY 534-3267T25 534-3267T25
534-3267T25OEM Part 534-3267T25 - Main Bearing - Valve Type (more info) About Mercury Marine $252.08 $252.08 Add to shopping cart
Available to order:
Usually ships
within 8 days
#4 17-20032 DOWEL PIN, MAIN BEARING (4 required per assembly)
PIN Dowel 17-20032  
17-20032OEM Part 17-20032 - Pin -Dowel - Priced Individually (more info) About Mercury Marine $2.90 $2.90 Add to shopping cart
10+ in stock. Explain stock levels
#5 17-65855 DOWEL PIN, REED LOCATING (16 required per assembly)
PIN Dowel 17-65855 17-65855
17-65855OEM Part 17-65855 - Pin - Priced Individually (more info) About Mercury Marine $2.90 $2.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#6 10-45775 SCREW, MAIN BEARING (9/16") (4 required per assembly)
SCREW,NLA 10-45775  
10-45775OEM Part 10-45775 - Screw, NLA (more info) About Mercury Marine $3.00 $3.00 Add to shopping cart
10+ in stock. Explain stock levels
#7 11-45774 NUT, MAIN BEARING SCREW (4 required per assembly)
NUT Note: must be ordered in multiples of 5 11-45774  
11-45774OEM Part 11-45774 - Nut - Priced Individually (more info) About Mercury Marine $15.30 $15.30 Add to shopping cart
10+ in stock. Explain stock levels
#8 34-88498A 1 REED SET, MATCHED (2 required per assembly)
REED SET 34-88498A 1 34-88498A 1
34-88498A 1OEM Part 34-88498A 1 - Reed Kit - 6 Reeds Only as shown (more info) About Mercury Marine $72.08 $72.08 Add to shopping cart
1 in stock. Explain stock levels
#9 34-79014 REED STOP (8 required per assembly)
REED STOP         O - Replaced by 34-822839  
34-79014This part has been superseded. REED STOP O - Replaced by 34-822839
(more info)
    UnavailableUnavailable Parts
STOP Reed 34-822839  
34-822839OEM Part 34-822839 - Reed Stop (more info) About Mercury Marine $6.70 $6.70 Add to shopping cart
2 in stock. Explain stock levels
#10 10-77280 SCREW, REED STOP (9/16") (8 required per assembly)
SCREW,NLA 10-77280  
10-77280OEM Part 10-77280 - Screw, NLA (more info) About Mercury Marine $1.25 $1.25 Add to shopping cart
10+ in stock. Explain stock levels
#11 11-20110 NUT, REED STOP SCREW (8 required per assembly)
NUT (#10-32) 11-20110 11-20110
11-20110OEM Part 11-20110 - Nut - Priced Individually (more info) About Mercury Marine $1.20 $1.20 Add to shopping cart
Available to order:
Usually ships
within 8 days
#12 74-5172A 6 PISTON AND PISTON PIN ASSEMBLY (4 required per assembly)
PISTON ASSY-STD   O - Replaced by 780-9229A 7  
743-5172A 6This part has been superseded. PISTON ASSY-STD O - Replaced by 780-9229A 7
(more info)
    UnavailableUnavailable Parts
PISTON ASSEMBLY 780-9229A 7 780-9229A 7
780-9229A 7OEM Part 780-9229A 7 - Piston Assembly - Std (more info) About Mercury Marine $133.00 $133.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
Piston-std. 18-4620
18-4620OEM Match 18-4620 - Piston - Standard-780-9229A7 (more info) About Sierra Marine $163.49 $126.85 Add to shopping cart
6 in stock. Explain stock levels
#12 743-3366A 2 PISTON AND PISTON PIN ASSEMBLY (.015 OVERSIZE) (AR required per assembly)
PISTON ASSY-.015  O - Replaced by 780-9229A10  
743-3366A 2This part has been superseded. PISTON ASSY-.015 O - Replaced by 780-9229A10
(more info)
    UnavailableUnavailable Parts
PISTON ASSY-.015  O NLA 780-9229A10
780-9229A10 PISTON ASSY-.015 O NLA
(more info)
    UnavailableUnavailable Parts
Piston-.015 18-4621
18-4621OEM Match 18-4621 - Piston .015, 780-9229A10 (more info) About Sierra Marine $186.49 $142.40 Add to shopping cart
1 in stock. Explain stock levels
#12 743-7716A 2 PISTON AND PISTON PIN ASSEMBLY (.030 OVERSIZE) (AR required per assembly)
7809229A11 743-7716A 2 743-7716A 2
743-7716A 2OEM Part 743-7716A 2 - Piston Assembly -.030 (more info) About Mercury Marine $122.70 $122.70 Add to shopping cart
4 in stock. Explain stock levels
PISTON ASSY-.030,NLA 780-9229A11 780-9229A11
780-9229A11OEM Part 780-9229A11 - Piston Assembly.030, NLA (more info) About Mercury Marine $100.00 $100.00 Add to shopping cart
10+ in stock. Explain stock levels
Piston Kit 18-4622
18-4622OEM Match 18-4622 - Piston .030 780-9229A11 - Special Order - No Returns (more info) About Sierra Marine $193.99 $158.28 Add to shopping cart
In stock - special order item. Explain stock levels
#13 40-47276 LOCK RING, PISTON PIN (8 required per assembly)
40828119 40-47276 40-47276
40-47276OEM Part 40-47276 - Lock Ring - Priced Individually (more info) About Mercury Marine $0.90 $0.90 Add to shopping cart
10+ in stock. Explain stock levels
LOCK RING Piston 40-828119 40-828119
40-828119OEM Part 40-828119 - Lock Ring (more info) About Mercury Marine $1.40 $1.40 Add to shopping cart
10+ in stock. Explain stock levels
#14 39-27841A12 PISTON PIN (1 required per assembly)
RING SET Piston - 39-27841A12 39-27841A12
39-27841A12OEM Part 39-27841A12 - Rings - Standard (more info) About Mercury Marine $81.90 $70.13 Add to shopping cart
3 in stock. Explain stock levels
#14 39-28616A12 PISTON RING (.015 OVERSIZE) (1 required per assembly)
RING SET Piston 39-28616A12 39-28616A12
39-28616A12OEM Part 39-28616A12 - Rings - .015 (more info) About Mercury Marine $81.00 $81.00 Add to shopping cart
5 in stock. Explain stock levels
#14 39-89822A12 PISTON RING (.030 OVERSIZE) (1 required per assembly)
RING SET-2-.030,NLA 39-89822A12 39-89822A12
39-89822A12OEM Part 39-89822A12 - Rings - 2-.030, NLA (more info) About Mercury Marine $72.00 $72.00 Add to shopping cart
10+ in stock. Explain stock levels
#15 632-7621A 3 CONNECTING ROD AND CAP ASSEMBLY (4 required per assembly)
CONNECTING ROD    O NLA  
632-7621A 3 CONNECTING ROD O NLA
(more info)
    UnavailableUnavailable Parts
#16 10-45379 SCREW, CAP TO ROD - WITH NUT (8 required per assembly)
SCREW,NLA 10-45379  
10-45379OEM Part 10-45379 - Screw, NLA (more info) About Mercury Marine $3.00 $3.00 Add to shopping cart
10 in stock. Explain stock levels
#17 11-20061 NUT, ROD SCREW - WITH NUT (8 required per assembly)
NUT,NLA 11-20061 11-20061
11-20061OEM Part 11-20061 - Nut, NLA (more info) About Mercury Marine $1.75 $1.75 Add to shopping cart
10+ in stock. Explain stock levels
#16 10-91012 SCREW, CAP TO ROD - WITHOUT NUT (8 required per assembly)
SCREW (.250-28 Sp 10-91012 10-91012
10-91012OEM Part 10-91012 - Screw -spec - Priced Individually (more info) About Mercury Marine $5.60 $3.36 Add to shopping cart
10+ in stock. Explain stock levels
#18 29-20063 NEEDLE BEARING, PISTON PIN (108 required per assembly)
BEARING Needle 29-20063 29-20063
29-20063OEM Part 29-20063 - Needle - Priced Individually (more info) About Mercury Marine $0.35 $0.26 Add to shopping cart
10+ in stock. Explain stock levels
#19 12-47275 WASHER, NEEDLE LOCATING (8 required per assembly)
WASHER Note: must be ordered in multiples of 5 12-47275  
12-47275OEM Part 12-47275 - Washer - Priced Individually (more info) About Mercury Marine $3.20 $3.20 Add to shopping cart
Available to order:
Usually ships
within 8 days
#20 29-20046 NEEDLE BEARING, CRANKPIN (100 required per assembly)
NEEDLE BRG @200   O - Replaced by 29-20046T  
29-20046This part has been superseded. NEEDLE BRG @200 O - Replaced by 29-20046T
(more info)
    UnavailableUnavailable Parts
BRG-NEEDLE 29-20046T 29-20046T
29-20046TOEM Part 29-20046T - Needle - Priced Individually (more info) About Mercury Marine $1.05 $1.05 Add to shopping cart
10+ in stock. Explain stock levels
#21 547-7060A 2 CENTER MAIN BEARING ASSEMBLY (1 required per assembly)
MAIN BEARING      O NLA  
547-7060A 2 MAIN BEARING O NLA
(more info)
    UnavailableUnavailable Parts
#23 29-71422 NEEDLE BEARING (56 required per assembly)
29714221   PRICED EACH"" 29-71422 29-71422
29-71422OEM Part 29-71422 - Needle Bearing - Priced Individually (more info) About Mercury Marine $0.35 $0.35 Add to shopping cart
10+ in stock. Explain stock levels
BEARING 29-71422  1 29-71422 1
29-71422 1OEM Part 29-71422 1 - Needle Bearing - Priced Individually (more info) About Mercury Marine $0.66 $0.39 Add to shopping cart
10+ in stock. Explain stock levels
#24 26113 RACE, OUTER (1 required per assembly)
RACE-CENTER MAIN  O - Replaced by -26113T 26113
26113This part has been superseded. RACE-CENTER MAIN O - Replaced by -26113T
(more info)
    UnavailableUnavailable Parts
RACE-CENTER MAIN 26113T  
26113TOEM Part 26113T - Race - Center Main (more info) About Mercury Marine $113.50 $113.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#25 53-26933 SNAP RING, OUTER RACE (1 required per assembly)
RING-SNAP,NLA 53-26933  
53-26933OEM Part 53-26933 - Ring -snap, NLA (more info) About Mercury Marine $2.50 $2.50 Add to shopping cart
10+ in stock. Explain stock levels
#26 10-76630 SCREW, CENTER MAIN BEARING (1") (2 required per assembly)
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