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Parts for Mariner 25 HP, 25 HP Marathon, Super 15 (2 Cylinder) Crankshaft, Pistons & Flywheel

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1A 258-8274A 6 FLYWHEEL ASSEMBLY (DESIGN I) (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258-8274A 6This part has been superseded.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258-818354A 2This part has been superseded.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258-859232T 6This part has been superseded.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
#1 258-818354A 2 FLYWHEEL (DESIGN II) (1 required per assembly)
#2 10-97359A 1 SCREW ASSEMBLY, 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 21-86496 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 43-99301 RING GEAR, FLYWHEEL -ELECTRIC (1 required per assembly)
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
#5 10-40039106 SCREW, (M5 x 13), RING GEAR TO FLYWHEEL -ELECTRIC (4 required per assembly)
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
#6 464-8978A 2 CRANKSHAFT ASSEMBLY (1 required per assembly)
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464-8978A 2This part has been superseded.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 822445A 1 WEAR SLEEVE (1 required per assembly)
WEAR SLEEVE KIT 822445A 1 822445A 1
822445A 1OEM Part 822445A 1 - Wear Sleeve Kit (more info) About Mercury Marine $16.00 $16.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
#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, 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, 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 1 OIL SEAL, CRANKSHAFT-UPPER (1 required per assembly)
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 3 BEARING ASSEMBLY, CENTER MAIN (1 required per assembly)
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, Woodruff, 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
#14 767-9104A17 PISTON AND PIN ASSEMBLY (2 required per assembly) (See Note)
PISTON ASSY       O - Replaced by 767-9104A18  
767-9104A17This part has been superseded. PISTON ASSY O - Replaced by 767-9104A18
(more info)
    UnavailableUnavailable Parts
PISTON ASSY       O - Replaced by 767-9104A19  
767-9104A18This part has been superseded. PISTON ASSY O - Replaced by 767-9104A19
(more info)
    UnavailableUnavailable Parts
PISTON ASSY       O - Replaced by 767-9104T19  
767-9104A19This part has been superseded. PISTON ASSY O - Replaced by 767-9104T19
(more info)
    UnavailableUnavailable Parts
PISTON ASSEMBLY 767-9104T19 767-9104T19
767-9104T19OEM Part 767-9104T19 - Piston Assembly (more info) About Mercury Marine $134.00 $134.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
#15 40-47276 LOCK RING, PISTON PIN (4 required per assembly) (See Note)
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 39-17286A12 PISTON RING ASSEMBLY (1 required per assembly) (See Note)
3918652A12 39-17286A12  
39-17286A12OEM Part 39-17286A12 - Ring Set -12 Pcs (more info) About Mercury Marine $80.00 $80.00 Add to shopping cart
3 in stock. Explain stock levels
RING SET-12 PCS   O - Replaced by 39-827491A12  
39-18652A12This part has been superseded. RING SET-12 PCS O - Replaced by 39-827491A12
(more info)
    UnavailableUnavailable Parts
RING SET Piston 39-827491A12 39-827491A12
39-827491A12OEM Part 39-827491A12 - Piston Rings - 12 Rings in this set (more info) About Mercury Marine $180.25 $180.25 Add to shopping cart
1 in stock. Explain stock levels
#17 630-8835A 2 CONNECTING ROD ASSEMBLY (2 required per assembly)
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)
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 42025 BEARING, LOCATING - NEEDLE BEARING (4 required per assembly)
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
#20 31-41620A 1 ROLLER BEARING ASSEMBLY (2 required per assembly)
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 10-40082 25 SCREW, (M6 x 25) (METRIC THREAD) (4 required per assembly)
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
#21 10-F1012 SCREW (STANDARD THREAD) (4 required per assembly)
SCREW,NLA F1012  
F1012OEM Part F1012 - Screw, NLA (more info) About Mercury Marine $1.50 $1.50 Add to shopping cart
10+ in stock. Explain stock levels
#- 90885A88 POWERHEAD ASSEMBLY, COMPLETE (1 required per assembly)
POWERHEAD         O - Replaced by -90885A89  
90885A88This part has been superseded. POWERHEAD O - Replaced by -90885A89
(more info)
    UnavailableUnavailable Parts
POWERHEAD MARINE  O - Replaced by -90885T89  
90885A89This part has been superseded. POWERHEAD MARINE O - Replaced by -90885T89
(more info)
    UnavailableUnavailable Parts
POWERHEAD         O - Replaced by -879732T89  
90885T89This part has been superseded. POWERHEAD O - Replaced by -879732T89
(more info)
    UnavailableUnavailable Parts
PH 20/25          O NLA  
879732T89 PH 20/25 O NLA
(more info)
    UnavailableUnavailable Parts
#- 822261A92 POWERHEAD ASSEMBLY (1 required per assembly) SN# 0D116956 THRU 0D117955
POWERHEAD MERCAS  O - Replaced by -90885A88  
822261A92This part has been superseded. POWERHEAD MERCAS O - Replaced by -90885A88
(more info)
    UnavailableUnavailable Parts
#- 27-41499A87 GASKET SET (1 required per assembly)
GASKET SET        O - Replaced by 27-41499A88 27-41499A87
27-41499A87This part has been superseded. GASKET SET O - Replaced by 27-41499A88
(more info)
    UnavailableUnavailable Parts
GASKET SET 27-41499A88 27-41499A88
27-41499A88OEM Part 27-41499A88 - Gasket Set (more info) About Mercury Marine $118.70 $101.64 Add to shopping cart
Available to order:
Usually ships
within 8 days
Powerhead Gasket Set 18-4334
18-4334OEM Match 18-4334 - Powerhead Gasket Set (more info) About Sierra Marine $109.49 $88.58 Add to shopping cart
Available to order:
Usually ships
within 8 days