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Parts for Mercury Marine 18 HP Crankshaft, Pistons & Flywheel

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 258-8274A 6 FLYWHEEL ASSEMBLY (1 required per assembly)
FLYWHEEL          O - Replaced by 258-818354A 2 258-8274A 6
258-8274A 6This part has been superseded. FLYWHEEL O - Replaced by 258-818354A 2
(more info)
    UnavailableUnavailable Parts
FLYWHEEL          O - Replaced by 258-859232T 6 258-818354A 2
258-818354A 2This part has been superseded. FLYWHEEL O - Replaced by 258-859232T 6
(more info)
    UnavailableUnavailable Parts
FLYWHEEL          O - Replaced by 258-859232T15 258-859232T 6
258-859232T 6This part has been superseded. FLYWHEEL O - Replaced by 258-859232T15
(more info)
    UnavailableUnavailable Parts
FLYWHEEL ASSY 258-859232T15 258-859232T15
258-859232T15OEM Part 258-859232T15 - Flywheel Assembly (more info) About Mercury Marine $399.00 $399.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
#2 10-97359A 1 SCREW, FLYWHEEL TO CRANKSHAFT (1 required per assembly)
SCREW,NLA 10-97359A 1  
10-97359A 1OEM Part 10-97359A 1 - Screw, NLA (more info) About Mercury Marine $6.25 $6.25 Add to shopping cart
10+ in stock. Explain stock levels
#3 12-86496 WASHER, FLYWHEEL SCREW (1 required per assembly)
WASHER 12-86496  
12-86496OEM Part 12-86496 - Washer (more info) About Mercury Marine $2.60 $2.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#4 43-87575 RING GEAR, FLYWHEEL (1 required per assembly) ELECTRIC UNITED STATES 6043400 AND BELOW AUSTRALIA 8073792 AND BELOW BELGIUM 9340115 AND BELOW CANADA 7185897 AND BELOW
RING GEAR         O - Replaced by 43-99301  
43-87575This part has been superseded. RING GEAR O - Replaced by 43-99301
(more info)
    UnavailableUnavailable Parts
RING GEAR 43-99301 43-99301
43-99301OEM Part 43-99301 - Ring Gear (more info) About Mercury Marine $221.42 $221.42 Add to shopping cart
Available to order:
Usually ships
within 8 days
#4 43-99301 RING GEAR, FLYWHEEL (1 required per assembly) ELECTRIC UNITED STATES 6043401 AND UP BELGIUM 9340116 AND UP CANADA 7185898 AND UP
#5 10-40039106 SCREW, RING GEAR TO FLYWHEEL (4 required per assembly) ELECTRIC
1088190313 10-40039106  
10-40039106OEM Part 10-40039106 - Screw (more info) About Mercury Marine $0.75 $0.75 Add to shopping cart
4 in stock. Explain stock levels
SCREW (M5 x 13) 10-881903 13 10-881903 13
10-881903 13OEM Part 10-881903 13 - Screw (more info) About Mercury Marine $1.30 $1.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
#6 464-8586A 2 CRANKSHAFT ASSEMBLY (1 required per assembly)
CRANKSHAFT        O - Replaced by 464-8978A 2  
464-8586A 2This part has been superseded. CRANKSHAFT O - Replaced by 464-8978A 2
(more info)
    UnavailableUnavailable Parts
CRANKSHAFT        O - Replaced by 464-8978T 2  
464-8978A 2This part has been superseded. CRANKSHAFT O - Replaced by 464-8978T 2
(more info)
    UnavailableUnavailable Parts
CRANKSHAFT ASSEMB 464-8978T 2 464-8978T 2
464-8978T 2OEM Part 464-8978T 2 - Crankshaft (more info) About Mercury Marine $534.57 $94.36 Add to shopping cart
10+ in stock. Explain stock levels
#7 85981 SEAL, CRANKSHAFT (1 required per assembly)
SEAL ,NLA 85981  
85981OEM Part 85981 - Seal, NLA (more info) About Mercury Marine $9.50 $9.50 Add to shopping cart
3 in stock. Explain stock levels
#8 26-85107 OIL SEAL CRANKSHAFT-LOWER (1 required per assembly)
SEAL Oil 26-85107 26-85107
26-85107OEM Part 26-85107 - Seal (more info) About Mercury Marine $13.80 $13.80 Add to shopping cart
1 in stock. Explain stock levels
Oil Seal 18-0537
18-0537OEM Match 18-0537 - Seal, 26-85107 (more info) About Sierra Marine $12.49 $11.00 Add to shopping cart
1 in stock. Explain stock levels
#9 31-85113 ROLLER BEARING, CRANKSHAFT - LOWER (1 required per assembly)
BEARING           O - Replaced by 31-85113T  
31-85113This part has been superseded. BEARING O - Replaced by 31-85113T
(more info)
    UnavailableUnavailable Parts
BEARING Roller - 31-85113T 31-85113T
31-85113TOEM Part 31-85113T - Bearing (more info) About Mercury Marine $19.42 $19.42 Add to shopping cart
Available to order:
Usually ships
within 8 days
#10 31-85114 ROLLER BEARING, CRANKSHAFT - UPPER (1 required per assembly)
BEARING           O - Replaced by 31-85114T  
31-85114This part has been superseded. BEARING O - Replaced by 31-85114T
(more info)
    UnavailableUnavailable Parts
BEARING Roller - 31-85114T 31-85114T
31-85114TOEM Part 31-85114T - Bearing (more info) About Mercury Marine $21.58 $21.58 Add to shopping cart
Available to order:
Usually ships
within 8 days
#11 26-85974 OIL SEAL, CRANKSHAFT - UPPER (1 required per assembly)
26859741 26-85974  
26-85974OEM Part 26-85974 - Oil Seal (more info) About Mercury Marine $8.95 $8.95 Add to shopping cart
8 in stock. Explain stock levels
SEAL Oil 26-85974  1 26-85974  1
26-85974 1OEM Part 26-85974 1 - Seal (more info) About Mercury Marine $15.90 $15.90 Add to shopping cart
1 in stock. Explain stock levels
#12 86992A 2 BEARING ASSEMBLY, CENTER MAIN (1 required per assembly)
BEARING ASSY      O - Replaced by -86992A 3  
86992A 2This part has been superseded. BEARING ASSY O - Replaced by -86992A 3
(more info)
    UnavailableUnavailable Parts
CENTER MAIN BEAR  O - Replaced by -86992A 5  
86992A 3This part has been superseded. CENTER MAIN BEAR O - Replaced by -86992A 5
(more info)
    UnavailableUnavailable Parts
BEARING ASSEMBLY 86992A 5 86992A 5
86992A 5OEM Part 86992A 5 - Bearing - Center/Main (more info) About Mercury Marine $104.67 $104.67 Add to shopping cart
Available to order:
Usually ships
within 8 days
#13 28-20094 KEY, FLYWHEEL DRIVE (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
#14 767-8511A 3 PISTON AND PIN ASSEMBLY (2 required per assembly)
PISTON            O - Replaced by 767-9104A 3  
767-8511A 3This part has been superseded. PISTON O - Replaced by 767-9104A 3
(more info)
    UnavailableUnavailable Parts
8729533T28 767-9104A 3  
767-9104A 3OEM Part 767-9104A 3 - Piston & Pin Assembly - 872- 9533T2 (more info) About Mercury Marine $149.00 $149.00 Add to shopping cart
5 in stock. Explain stock levels
#15 40-47276 LOCK RING, PISTON PIN (4 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
#16 39-96525A12 PISTON RING ASSEMBLY (1 required per assembly)
PISTON RING ASSY  O - Replaced by 39-12810A12  
39-96525A12This part has been superseded. PISTON RING ASSY O - Replaced by 39-12810A12
(more info)
    UnavailableUnavailable Parts
398M0083677 39-12810A12 39-12810A12
39-12810A12OEM Part 39-12810A12 - Piston Rings 12 Pcs. (more info) About Mercury Marine $242.50 $242.50 Add to shopping cart
10+ in stock. Explain stock levels
ORD 39-8M0096518  O NLA  
39-8M0083677 ORD 39-8M0096518 O NLA
(more info)
    UnavailableUnavailable Parts
#17 630-8329A 2 CONNECTING ROD ASSEMBLY (2 required per assembly) UNITED STATES 6239752 AND BELOW BELGIUM 9378115 AND BELOW CANADA 7200762 AND BELOW
CONNECTING ROD,NLA 630-8329A 2  
630-8329A 2OEM Part 630-8329A 2 - Connecting Rod, NLA (more info) About Mercury Marine $120.00 $120.00 Add to shopping cart
1 in stock. Explain stock levels
#18 29-20063 NEEDLE BEARING, PISTON END (54 required per assembly) UNITED STATES 6239752 AND BELOW BELGIUM 9378115 AND BELOW CANADA 7200762 AND BELOW
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 12-85175 WASHER, LOCATING - NEEDLE BEARING (4 required per assembly) UNITED STATES 6239752 AND BELOW BELGIUM 9378115 AND BELOW CANADA 7200762 AND BELOW
WASHER,NLA 12-85175  
12-85175OEM Part 12-85175 - Washer, NLA (more info) About Mercury Marine $1.50 $1.50 Add to shopping cart
10+ in stock. Explain stock levels
#20 31-91866A 1 ROLLER BEARING ASSEMBLY (2 required per assembly) UNITED STATES 6239752 AND BELOW BELGIUM 9378115 AND BELOW CANADA 7200762 AND BELOW
BEARING ASSY      O - Replaced by 31-41620A 1  
31-91866A 1This part has been superseded. BEARING ASSY O - Replaced by 31-41620A 1
(more info)
    UnavailableUnavailable Parts
BEARING           O - Replaced by 31-879877A 1 31-41620A 1
31-41620A 1This part has been superseded. BEARING O - Replaced by 31-879877A 1
(more info)
    UnavailableUnavailable Parts
BEARING ASSEMBLY 31-879877A 1 31-879877A 1
31-879877A 1OEM Part 31-879877A 1 - Bearing Cage Assembly (more info) About Mercury Marine $30.75 $30.75 Add to shopping cart
Available to order:
Usually ships
within 8 days
#21 10-86224 SCREW, CONNECTING ROD (25MM) (4 required per assembly) UNITED STATES 6239752 AND BELOW BELGIUM 9378115 AND BELOW CANADA 7200762 AND BELOW
SCREW @2          O - Replaced by 10-40082 25  
10-86224This part has been superseded. SCREW @2 O - Replaced by 10-40082 25
(more info)
    UnavailableUnavailable Parts
SCREW,NLA 10-40082 25  
10-40082 25OEM Part 10-40082 25 - Screw, NLA (more info) About Mercury Marine $1.50 $1.50 Add to shopping cart
10+ in stock. Explain stock levels
#17 630-8329A 3 CONNECTING ROD ASSEMBLY (2 required per assembly) UNITED STATES 6239753 AND UP BELGIUM 9378116 AND UP CANADA 7200763 AND UP
CONNECTING ROD    O - Replaced by 630-8835A 2  
630-8329A 3This part has been superseded. CONNECTING ROD O - Replaced by 630-8835A 2
(more info)
    UnavailableUnavailable Parts
CONN ROD ASSY     O - Replaced by 630-8835A 4  
630-8835A 2This part has been superseded. CONN ROD ASSY O - Replaced by 630-8835A 4
(more info)
    UnavailableUnavailable Parts
CONNECTING ROD AS 630-8835A 4  
630-8835A 4OEM Part 630-8835A 4 - Connecting Rod (more info) About Mercury Marine $227.08 $227.08 Add to shopping cart
Available to order:
Usually ships
within 8 days
#18 29-98295 NEEDLE BEARING, PISTON END (54 required per assembly) UNITED STATES 6239753 AND UP BELGIUM 9378116 AND UP CANADA 7200763 AND UP
BEARING Needle 29-98295 29-98295
29-98295OEM Part 29-98295 - Needle Bearing - Priced Individually (more info) About Mercury Marine $0.20 $0.14 Add to shopping cart
10+ in stock. Explain stock levels
#19 12-98296 WASHER, LOCATING - NEEDLE BEARING (4 required per assembly) UNITED STATES 6239753 AND UP BELGIUM 9378116 AND UP CANADA 7200763 AND UP
WASHER            O - Replaced by -42025  
12-98296This part has been superseded. WASHER O - Replaced by -42025
(more info)
    UnavailableUnavailable Parts
8M0012294 42025  
42025OEM Part 42025 - Thrust Bearing (more info) About Mercury Marine $1.58 $1.58 Add to shopping cart
5 in stock. Explain stock levels
WASHER-THRUST 12-8M0012294  
12-8M0012294OEM Part 12-8M0012294 - Thrust Washer (more info) About Mercury Marine $3.33 $3.33 Add to shopping cart
Available to order:
Usually ships
within 8 days
#21 10-40082 25 SCREW, CONNECTING ROD (25MM) (4 required per assembly) UNITED STATES 6239753 AND UP BELGIUM 9378116 AND UP CANADA 7200763 AND UP
#22 27-85168A80 GASKET SET ( required per assembly)
GASKET SET        O NLA 27-85168A80
27-85168A80 GASKET SET O NLA
(more info)
    UnavailableUnavailable Parts