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Parts for Mercury Marine 9.9 HP (4-Stroke) (323 cc) Crankshaft, Pistons, & Connecting Rods

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 400-834957 CRANKSHAFT (1 required per assembly)
CRANKSHAFT 400-834957 400-834957
400-834957OEM Part 400-834957 - Crankshaft, See Detail Page for Complete Powerhead (more info) About Mercury Marine $751.42 $751.42 Add to shopping cart
Available to order:
Usually ships
within 8 days
#2 26-855680 SEAL, Oil (1 required per assembly)
SEAL Oil 26-855680 26-855680
26-855680OEM Part 26-855680 - Seal (more info) About Mercury Marine $15.60 $15.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#3 26-855681 SEAL, Oil (1 required per assembly)
SEAL Oil 26-855681 26-855681
26-855681OEM Part 26-855681 - Seal (more info) About Mercury Marine $15.60 $15.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#4 31-834960 BEARING (AR required per assembly) (Brown)
ORD 31-8M0054679  O NLA  
31-834960 ORD 31-8M0054679 O NLA
(more info)
    UnavailableUnavailable Parts
#4 31-834960 10 BEARING (AR required per assembly) (Black)
BEARING 31-834960 10  
31-834960 10OEM Part 31-834960 10 - Bearing (more info) About Mercury Marine $4.60 $4.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#4 31-834960 20 BEARING (AR required per assembly) (Blue)
BEARING 31-834960 20  
31-834960 20OEM Part 31-834960 20 - Bearing (more info) About Mercury Marine $4.40 $4.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#5 600-834961T 1 CONNECTING ROD (2 required per assembly)
CONNECTING ROD 600-834961T 1  
600-834961T 1OEM Part 600-834961T 1 - Connecting Rod, See Detail Page for Complete Powerhead (more info) About Mercury Marine $83.92 $83.92 Add to shopping cart
Available to order:
Usually ships
within 8 days
#6 10-850844 BOLT, (M7 x 38) (4 required per assembly)
BOLT (M7 x 38) 10-850844 10-850844
10-850844OEM Part 10-850844 - Bolt (more info) About Mercury Marine $2.40 $2.40 Add to shopping cart
Available to order:
Usually ships
within 8 days
#7 12-855682 WASHER (4 required per assembly)
WASHER 12-855682  
12-855682OEM Part 12-855682 - Washer (more info) About Mercury Marine $1.30 $1.30 Add to shopping cart
Available to order:
Usually ships
within 8 days
#8 700-834963T PISTON (2 required per assembly)
PISTON 700-834963T 700-834963T
700-834963TOEM Part 700-834963T - Piston, See Detail Page for Complete Powerhead (more info) About Mercury Marine $48.33 $48.33 Add to shopping cart
Available to order:
Usually ships
within 8 days
#9 39-850846 RING, Piston (2 required per assembly)
RING Piston 39-850846  
39-850846OEM Part 39-850846 - Piston Ring (more info) About Mercury Marine $10.90 $10.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#10 39-850847 RING, Piston (2 required per assembly)
RING Piston 39-850847  
39-850847OEM Part 39-850847 - Piston Ring (more info) About Mercury Marine $9.50 $9.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#11 39-825839 RING, Oil (2 required per assembly)
RING Oil 39-825839  
39-825839OEM Part 39-825839 - Ring - Oil (more info) About Mercury Marine $9.50 $9.50 Add to shopping cart
Available to order:
Usually ships
within 8 days
#12 41-825713 PIN, Piston (2 required per assembly)
PIN Piston 41-825713 41-825713
41-825713OEM Part 41-825713 - Piston Pin (more info) About Mercury Marine $8.60 $8.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#13 53-82343M CLIP (4 required per assembly)
CLIP 53-82343M  
53-82343MOEM Part 53-82343M - Ring -snap - Priced Individually (more info) About Mercury Marine $1.90 $1.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#14 28-825666 KEY (1 required per assembly) SN# USA-0T800999/BEL-0P267999 & Below
KEY               O - Replaced by 28-81914M  
28-825666This part has been superseded. KEY O - Replaced by 28-81914M
(more info)
    UnavailableUnavailable Parts
288M0057164 28-81914M  
28-81914MOEM Part 28-81914M - Key - Priced Individually (more info) About Mercury Marine $5.90 $5.90 Add to shopping cart
10 in stock. Explain stock levels
KEY Note: must be ordered in multiples of 2 28-8M0057164  
288M0057164OEM Part 288M0057164 - Key Note: Must be ordered in multiples of 2 (more info) About Mercury Marine $11.70 $11.70 Add to shopping cart
Available to order:
Usually ships
within 8 days
#14 28-81914M KEY (1 required per assembly) SN# USA-0T801000/BEL-0P268000 & Up
#15 28-84403M KEY (1 required per assembly)
288M0084803 28-84403M  
28-84403MOEM Part 28-84403M - Key - Priced Individually (more info) About Mercury Marine $3.13 $3.13 Add to shopping cart
1 in stock. Explain stock levels
KEY Note: must be ordered in multiples of 2 28-8M0084803  
288M0084803OEM Part 288M0084803 - Key Note: Must be ordered in multiples of 2 (more info) About Mercury Marine $3.30 $3.30 Add to shopping cart
1 in stock. Explain stock levels
#- 802733A98 POWERHEAD ASSEMBLY (1 required per assembly) (Electric)
POWERHEAD ASSEMBL 802733A98  
802733A98OEM Part 802733A98 - Powerhead 15 4S (more info) About Mercury Marine $2,392.86 $1,434.23 Add to shopping cart
Available to order:
Usually ships
within 8 days
#- 879783A01 POWERHEAD ASSEMBLY (1 required per assembly) (Manual) SN# USA-0T178500/BEL-0P094500 & Up
POWERHEAD ASSEMBL 879783A01 879783A01
879783A01OEM Part 879783A01 - Powerhead 9.9 and 15HP 4 Stroke (more info) About Mercury Marine $2,335.71 $390.00 Add to shopping cart
10+ in stock. Explain stock levels
#- 27-835427A00 GASKET SET, Powerhead (1 required per assembly)
GASKET SET Powerh 27-835427A00 27-835427A00
27-835427A00OEM Part 27-835427A00 - Gasket Set (more info) About Mercury Marine $136.17 $136.17 Add to shopping cart
Available to order:
Usually ships
within 8 days